Re: [python-win32] PyWin32 API
Josh Clayton wrote:
>
> I've been reading the documentation and had a question.
>
> How would I create a custom tag in the details tab of a file then set
> it, and read it?
>
> If creating it is not possible, would it then be possible just set an
> already existing tag and then read it? My end goal is to try and
> metatag a large group of files to avoid having to open them to read
> them. I'd rather just use a script to blast through 10,000 files and
> understand what files are in my folder structure.
The answer is quite complicated.
The Details tab in Explorer is exposing whatever metadata the underlying
file format supports. If you look at a JPG, for example, the JPG format
has the ability to add "tags". If you change the tag list while you're
looking at that tab, Windows modifies the file to add that to the tag
list in the JPG file. Similar, a Word document supports metadata like
"DocTitle" and "Author", and Explorer understand the Word file format
and how to modify it. There is no generic "hidden store" for these
properties.
You can get access to these properties using the Shell object model.
Theoretically, this should do it, but this returned "None" for all of
the properties I tried. I wish you luck. If Tim Golden is listening,
he may have a better idea.
Note that the Shell.NameSpace API is one of the very few places in
Windows where the path MUST be specified with backslashes. It will not
accept forward slashes.
from win32com.client import Dispatch
shell = Dispatch("Shell.Application")
y = shell.NameSpace(r"c:\tmp\pvt")
print( y.Title )
for z in y.Items():
print( z.Path )
print( z.ExtendedProperty("Author"),
z.ExtendedProperty("Date"),
z.ExtendedProperty("Tags"))
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Re: [python-win32] PyWin32 API
Michael C wrote: > > I am wrestling with my life right now, but I'll post more hopefully by > tomorrow. > > Also, I am trying to write my own 'Cheat Engine' or just a memory > scanner in general, > I am just looking for simple values such as a int or a double. Wrong thread. Here is C++ code that does what you asked, based on a StackExchange article that was trying to cheat on games by increasing the money level. This one scans my gvim editor process looking for the "cpp" extension. It finds several hundred occurrences: https://pastebin.com/BbyrXxsf It's possible to convert that to Python, but you're using ctypes so much that you're basically writing C code in Python. Further, Python doesn't worry about representations in memory. If you're searching for a specific floating point value, then you need to know exactly how it was stored, bit for bit. Is it single precision? Double precision? Scaled integer? Are you sure? And if you do find the value, you can't change it unless you're sure it's not a false positive. You're likely to find any 4-byte random value somewhere in a process, perhaps even as bytes of machine code. You don't want to change it unless you're sure it's a numeric constant and not, say, a pointer. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Python - connexion to serial port
Schoeni, Yann wrote: > > > I thought it would be a great idea to keep it open during the > application life time for one reason. > > > > My webserver (running on windows) got a Velleman VM8090 module plugged > in with a usb cable, my serial port is virtual. > > > > 7) Sometimes, the script return « The Serial port is already > open », and a *delay is identified*. Below the function that open the > port : > > 8) Because of this delay I was just thinking about keeping the > serial port open while the application is running. > > > > What do you guys think ? $ > There are two possible solutions. The only time the port should be open is if you are already processing another request. No matter what you do, there's always going to be a delay in that case. Your problem, then, is to serialize access to the serial port, to ensure there's only one request at a time. Your proposed solution is certainly workable. You could create a long-running "serial server" that keeps the serial port open and accepts requests from your web server. The other solution is to change your script so that IT keeps retrying until it's able to open the port, with a short delay between each attempt. That way, the web server would always see success. The delay with the two solutions should be about the same; you're always going to have to wait for request A to finish before request B starts, but the second solution would be easier, from where you are now. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Python - connexion to serial port
Schoeni, Yann wrote: > > > « is the Python script persistent (is it running continuously in the > background) or launched for each transaction? » > > > > - Currently, the script is launched for each transaction. As I > understand your proposition, when the web page is open, > > an ajax request should call a python script which open a thread > between the machine and the serial peripheral, right ? > I'm still not clear what problems you are seeing with the open/send/close paradigm. What leads you to make a change? The open/send/close model is usually easier to handle, because the process starts with a clean slate every time. Once you go to a long-running process, you have more things to keep track of. Dennis is not necessarily proposing a new thread. Consider, for example, a server application using one of the frameworks, like Flask or CherryPy or Django. Such an application gets launched once, and sits idle waiting for to send it things to do. When it gets a request (either from a socket or routed from Apache), it reads input, takes action, sends output, then waits for more things to do. Dennis' proposal is the same. Have a Python script running continuously. When an Ajax request comes in (either from a socket or from Apache), you communicate with the serial port and send your response. The serial port can remain open, because the application does not close. But I'm not convinced that complexity is needed. The open/send/close model should work just fine. > - Even if I find a way to open a thread with the serial port or > to keep it open with a loop, is it possible to send it orders ? Why wouldn't it? -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Recycle bin deletion date - mixing shell and winshell?
Durumdara wrote: > > The winshell module > (https://winshell.readthedocs.io/en/latest/recycle-bin.html) retreives > recycle bin files for me, I can see the deletion date, but not the > real filename in filesystem (to I can delete the older ones). The documentation does not describe it, but if you look in the source code (which should always be your fallback for True Answers), you'll see that the ShellRecycledItem object has a real_filename() method that returns the information you want. The documentation is on github, if you want to submit a fix. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Pywin32 outlook email organizer
Samantha Mait wrote: > > > > I am reaching out as I am trying to use the pywin32 package for python > 2.7 to automate sending an outlook calendar invite. The package is > awesome and is able to do everything I would like except for one > piece. I am trying to send the email from a separate email address. Is > there any way that I can do this? > > > > Ideally, I would like the email to be able to generate the script on > my computer, but have the sender be someone else like you can do in > python’s email package via sendmail(from_addresss, [to_address], > msg.as_string()). > Remember that Python is just a gateway into Outlook. You can't do anything that Outlook wouldn't ordinarily do, and Outlook doesn't allow you to override the sender address. You can set up multiple identities in Outlook, and then use Python to choose which identity to use when sending. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Using DirectShow API to access webcam
Joe wrote:
I have a question an hope you can help me. I am trying to control a
UVC webcam
using the DirectShow API, but could not get anything to work.
The question is already posted on StackOverflow:
https://stackoverflow.com/questions/51843523/accessing-webcam-via-directshow-using-com-with-python
I am not familiar with using CLSID, IID so playing with the few
examples I found
got my nowhere:
# IID_IAMVideoProcAmp is C6E13360-30AC-11d0-A18C-00A0C9118956
from win32com.client import Dispatch
from win32com.client.gencache import EnsureDispatch,GetClassForProgID,
GetClassForCLSID, GetModuleForProgID, GetModuleForCLSID
iid = '{c6e13360-30ac-11d0-a18c-00a0c9118956}'
print(GetClassForCLSID(iid))
print(GetModuleForProgID(iid))
print(GetModuleForCLSID(iid))
CLSID = IID('{c6e13360-30ac-11d0-a18c-00a0c9118956}')
print(CLSID)
print(Dispatch(CLSID))
pywintypes.com_error: (-2147220990, 'CONNECT_E_CANNOTCONNECT',
None, None)
Could someone of you point me in the right direction and maybe put
together a few lines to get me started?
I am not entirely convinced it is possible to control DirectShow from
Python, but I'll give you some general information.
An "interface" in COM terms, described by an IID, is just a set of
functions declarations. It defines the things you can do with an
object, but it is not actually an object. A "CLSID", on the other hand,
defines a COM object. The CLSID doesn't tell you what the object can
do, it's just a way of creating an object. Once you have used a CLSID
to create an object, you can ask it for an interface.
So, you can't just create IID_IAMVideoProcAmp. You have to ask an
existing object for its IAMVideoProcAmp interface. You would create
your camera object, and then query the camera object for IAMVideoProcAmp.
Creating a DirectShow graph is a multi-step process. You create a
filter graph, you add your camera to the graph, you tell the graph to
render the stream (which means it automatically fills in the other
filters), and you control it. Here is some sample code that does this:
https://gist.github.com/dust8/3890196
This is actually more complicated than it needs to be, because it's
trying to handle TV devices with tuner and audio filters as well. You
don't need that. Once you have a device from VideoInputDeviceCategory,
you don't need the video decoder or the audio. You can just render the
graph at that point.
Alternatively, it looks like this package might be more applicable:
http://videocapture.sourceforge.net/
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Re: [python-win32] LNK4197 error building c++ extension
Robin Becker wrote:
I am not a great C++ person so as I am building my first C++ extension
I am seeing this error which I don't understand
> _aggstate.obj : warning LNK4197: export 'init_aggstate' specified
multiple times; using first specification
> Creating library build\temp.win-amd64-2.7\Release\_aggstate.lib
and object build\temp.win-amd64-2.7\Release\_aggstate
> .exp
It's not an error, it's a warning. And this has nothing to do with
C++. Is this your own private project, or is it one I can go look up?
I looked in the preprecessor output(_aggstate.i) and see this single
occurrence of aggstate_init
#line 1191 "_aggstate.cxx"
extern "C" __declspec(dllexport) void init_aggstate(void)
{
aggstate_init();
}
is this some feature of C++ or is there a real issue here?
My guess is that you have listed "init_aggstate" in the ".def" file that
lists the exported functions. That's the first export specification.
You are also using __declspec(dllexport) in the function definition, and
that's the second export specification. When you use
__declspec(dllexport), you don't need the ".def" file.
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Re: [python-win32] LNK4197 error building c++ extension
On Aug 21, 2018, at 5:59 AM, Robin Becker wrote: > > C:\code\hg-repos\taggstate\REPOS\aggstate>ls build\temp.win-amd64-2.7\Release > _aggstate.exp _aggstate.obj agg25 > _aggstate.lib _aggstate.pyd.manifest > > digging a bit deeper I find taht the problem comes from the exp file and the > linker /EXPORT. It seems that the /EXPORT:init_aggstate can be suppressed for > this build and the warning disappears, but something (I assume the exp) > supplies the export. Certainly the pyd appears to work. Yes, the /EXPORT linker command is just an alias for the .def file. You need to mention the entry point EITHER (1) in a .def file, (2) in a /EXPORT, or (3) with a __declspec(dll export). One and one only. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Using DirectShow API to access webcam
Joe wrote: thanks for your helpful answer and the explanations. Following up on your comment on http://videocapture.sourceforge.net/ I found that there is jaraco.video, which seems to be "a port of the VideoCapture module in pure Python using ctypes and comtypes." (https://github.com/jaraco/jaraco.video) It is using a 'DirectShow.tlb' file, whatever that is, to get the definitions into comtypes. A TLB file is a "type library". It is a compiled version of the IDL for a set of COM interfaces. IDL is modified subset of C++ that is used to declare the functions within a COM interface, their parameters, and their types. It is intended to be a language-independent way to define the functions within an interface. Looks like you're on your way. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Reg. taking folder ownership
Goku Balu wrote: My use case is this. Folder1 is created by Admin1 and ACL is set by Admin1. Now Admin2 wants to change the ACL. I think we have two options here 1) Take folder ownership and the do the changes 2) Take elevated privileges for Admin2 account and add/remove ACL entries (Similar to "Run as Administrator" and using icalcs in cmd) I'm trying to solve this with the first approach. After Googling around, here is the code I'm trying to run for taking ownership from Admin1 and assign it to Admin2. The Windows file permission ecosystem makes my head hurt, so I'm going to avoid answering your exact question, but I would point out that Admin1 can change the ACL to give Admin2 the right to change the ACL. In the file permission dialog, that's the "Change permissions" right. In code, it's the "WRITE_DAC" file permission. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Using WMI to listen to window creation and destruction
Ram Rachum wrote: > "Are you really looking to monitor the creation of new top-level > windows, which means the creation of new processes?" > > Does that apply to explorer windows? (i.e. when you open a new > folder.) Because that's what I'd like to listen to. No. Those are just subwindows opened within the Explorer process. What are you REALLY trying to do? What's the overall goal? Explorer has an extensive shell extension interface that let you participate in many actions, but opening new folders is not one of them. https://msdn.microsoft.com/en-us/library/windows/desktop/cc144067 Remember, you can open a new folder without opening a new window -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Dispatch multi instance of the some com server
Matteo Boscolo wrote: > we have an issues with our com server (exe) . > > we dispatch it with dispatchEx to be sure that every time we dispatch > it a new instance of the com server will be created. > > but it dose not work. > > when we dispatchex it the program get the live instance instead of > creating a new one. > Why? I know you weren't asking for a design review, but it seems like a serious design flaw if you cannot handle multiple requests with a single instance. That's a big part of COM -- an easy way to have a server that handles multiple clients. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Using WMI to listen to window creation and destruction
Ram Rachum wrote: > > I'd like to use the `wmi` module to be notified on the events of a > window being created or destroyed. Is this possible? I looked at the > tutorial and cookbook and could find many interesting things, but not > that. I don't think WMI provide information about windows, although admittedly I've underestimated WMI in the past. If you have evidence to the contrary, please correct me. However, I'm pretty sure what you said is not really what you meant. Remember that every control, every button, every textbox, every icon -- really, every visible thing is a separate window. You'd get thousands of hits. Are you really looking to monitor the creation of new top-level windows, which means the creation of new processes? Because WMI DOES provide information about processes. If you do want to find out about windows, you'd need to use a Windows hook. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Issue on getting activesheet on win 8 and Win 8+ OS systems
Aravind wrote: > Issue on getting activesheet on win 8 and Win 8+ OS systems > > We are facing issues on getting active sheet values while running > python3 code using win32. > > > > Problem occurs only running on windows 8 and Windows 8+ OS PC's. > > > > Here I attached the screenshot of my error and piece of code which i > execute. > Are you actually opening a file? Does the file open correctly? Is it possible the workbook isn't open yet by the time you query it? Are you running as the logged in user, or is this a service? -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Writing event handlers
Kairen Tan wrote: I’m trying to write some python to consume events from an Event Handler….without much success. I’m using a class created using makepy, and on inspecting the file, there is a block of commented code like: # Event Handlers # If you create handlers, they should have the following prototypes: #def OnBeforeOpen(self, oRecord=defaultNamedNotOptArg): #def OnBeforeSave(self, oRecord=defaultNamedNotOptArg, bCancel=defaultNamedNotOptArg): #def OnAfterSave(self, oRecord=defaultNamedNotOptArg): #def OnBeforeDelete(self, oRecord=defaultNamedNotOptArg, bCancel=defaultNamedNotOptArg): #def OnCloseRecord(self): #def OnAfterDelete(self, lDatabaseID=defaultNamedNotOptArg, sImportID=defaultNamedNotOptArg): *My question is simply, how do I implement this? * * * I’ve tried using win32com.server.register.RegisterServer, but I’m stumped as to what comes after that. It would have been helpful if you had told us what server you were trying to work with here. You don't need to register yourself as a server. Registration is only needed if someone else is going to look for your object by its CLSID, but that's not the case here. There's really no such thing as an "event handler" in COM. I'm guessing that the server you're working with wants you to hand it a COM interface, and it will call methods of that COM interface when certain events occur. So, you need to use the magic _reg_ names so that win32com recognizes you as a COM object, but after that, all you should need to do is create an instance of your object, and pass it to whatever method your server uses to register the callback object. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] pywintypes.error: (5, 'RegSetValueEx', 'Access denied')
Robin Kluth wrote:
>
> I use Python 2.7 on win10 and pywin32 223. I want to log messqages to
> the EventLog:
>
> dllname = os.path.dirname(__file__)
> ntl = NTEventLogHandler("Python Logging Test", dllname=dllname)
> logger = logging.getLogger("")
> logger.setLevel(logging.DEBUG)
> logger.addHandler(ntl)
>
> logger.error("This is a '%s' message", "Error")
>
> But I get:
> ...
> pywintypes.error: (5, 'RegSetValueEx', 'Zugriff verweigert')
>
> If I run the script with Admin privs, it is working.
>
> How to log as "normal" user? Am I missing something?
You can't. If you want to log to the event log, you'll need
privileges. Each app must register as an "event source". Doing so
requires writing to the HKEY_LOCAL_MACHINE part of the registry, and
write requires admin privileges.
Technically speaking, it would be possible to register that source once
in an elevated process and then use it without re-registering, but the
current code does not support that.
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Re: [python-win32] Service stucks in Starting state
k3...@free.fr wrote: > Unfortunatelly when I install and then start my service, it gets stucked in > Starting state and then I have no chance to stop or remove it except by > restarting the computer. How do you know this? How did you start the service? How are you monitoring the state? -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Future of PyWin32
Thomas Pietrowski wrote: > > > (2) Syntax fixes and code-style. > > If I'm not wrong I saw mixed usage of tabs, 2-whitespace and > 4-whitespace indents. Of course, I can be wrong and we are using > 4-whitespaces everywhere, but I remember that I saw files using tabs > and 2-whitespaces. > It is boring work, but I can imagine, that people, who see this mixed > usage, might get frightened. > Also when it comes to code-style I would like to make everything well > ordered. Eg. splitting long lines and splitting multiple options, so > you can read the code without scrolling vertically too much. Remember that much of PyWin32 is automatically generated. Automatically generated code is almost never pleasant to read. > (3) Self-explaining variable names > > Some variables are using abbreviations. Instead, I would like to use > full words, so the code is readable like a written book. Personally, I > like this a lot because the source actually tells you what it is doing > without any guesses. Again, much of PyWin32 is automatically generated from the Win32 C API. The names need to match the API, as terse as they may be. I am sympathetic to your plea, but renaming efforts like this are fraught with dangers. It's awfully easy to cause duplicates or screw up the comments through an overactive search-and-replace. > (6) Focusing more on Python3 compatibility > > The end of life of Python2 is at 2020 and therefore I would suggest > investing time into making the code compatible to Python3 asap. PyWin32 has been Python 3 compatible for many years. To what are you referring? -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] More info about Microsoft Foundation Classes (MFC)
Thomas Pietrowski wrote: > > I have general questions about MFC and hope you can answer them. > When compiling PyWin32 for Py2.7 and Py3.x I get successful builds, > but setup.py can't find the MFC libraries, > which are specified here: > https://github.com/thopiekar/pywin32/blob/master/setup.py#L1059 > for Python 2.7, Python 3.3 and Python3.4. This happens while using > Appveyor and I contacted them about these "missing" files. > One of the developers contacted me back and asked, whether mfc90*.dll > is really needed for Python2.7. > I think the question is quite eligible: Why are exactly these versions > of MFC libraries strictly specified here? > Isn't it possible to take the latest version, which is available? > (Which is there for Python3.5 and 3.6.) No. It may not be obvious, but Python itself it entirely implemented in a DLL. (Note that the "python.exe" command is only a couple dozen kilobytes.) That DLL links to the dynamic version of the C run-time library. To avoid conflicts in shared state and such, all of the DLLs it calls must either use a static C run-time library, or the same dynamic version that Python itself uses. The same applies to MFC. When an application or DLL links with MFC, it links to a specific version (e.g., mfc90.dll). You can't substitute another. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] More info about Microsoft Foundation Classes (MFC)
Thomas Pietrowski wrote: > Ok, so basically the same I know from Linux. > But how likely is it that Python 2.7.14 (which is currently the latest > version) is linked against old libraries? > Isn't the Python Foundation updating their build system regularly, too? No. In the past, the policy has been whatever build system is used for 2.7.0 will be used for all 2.7.x releases. If they upgrade their Visual Studio, then all users have to upgrade, too, and in the Windows world that costs money. > At the moment I'm quite convinced that the choice of an MFC version > does not depend on Python, but on which version you built PyWin32. > However, this is only my current feeling. Right. The core interpreter has no UI, and does not link to MFC. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] com_error creating VSS shadow copy (running as windows service)
Gerardo García Urtiaga wrote: > > > We have an application that launch a VSS (volume shadow copy), when > the application is running as administrator user, the shadow copy is > made correctly, but when the application is running as windows service > the application has a crash: Under what user are you running the service? If you are using LOCAL_SYSTEM, then you should have administrator privilege, but if you are using a regular user, then you do not. > com_error: (-2147221020, 'Sintaxis no v\xe1lida', None, None) > That's MK_E_SYNTAX, meaning the string could not be parsed in the current context. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Get errors 7000 and 7009
Chang Dacool wrote: > > The service will fail to start when we reboot the OS in some > computers, when this happens we will get error code 7000 and 7009 in > the event viewer. > 7000: The ServiceName service failed to start due to the following error: > The service did not respond to the start or control request in a > timely fashion. > 7009: A timeout was reached (3 milliseconds) while waiting for The > ServiceName service to connect. > > We checked our program, the Service timeout was before launching our > program. > I can't tell what you mean. Are you saying your service sometimes takes more than 30 seconds to launch? If so, then you need to figure out why it takes so long. If you are waiting for some event during your startup, perhaps you can reorganize your code so that you defer some of your initialization until after you enter the main service loop. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] win32com + Brother Printer + Django
On Mar 23, 2018, at 9:44 AM, Scott Vitale <sc...@spigotlabs.com> wrote: > > I'm looking for some win32com help... I have a simple Python script that > creates a `Dispatch` object for a `bpac.Document` type (it's a Brother > printer SDK class). It works perfectly fine in a standalong script, but as > soon as I attempt to call this code from Django, it hangs on creating the > `Dispatch` objectso bizarre. > > I've tried calling `CoInitialize` in a variety of ways, no difference in > behavior. > > The other oddity is that I can create `bpac.Printer` objects with no issue. > It's only the `bpac.Document` type that hangs. Unfortunately I don't have > access to the library source and I'm not sure how to debug why it's hanging. How are you running your Django app? Is it running as a service? Is it networked, or directly connected? Microsoft does not recommend printing from Windows services, in parts because of security considerations. Your service is running as a special Windows user (unless you've configured it), and that special user needs permissions to use the printer. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Excel / Word: setting properties
Niemann, Hartmut wrote: > > > > I create an excel document using the COM interface. > > > > Now I need to set two properties to be compatible with a new company rule: > > > > “[the tool] uses MS Office standard (‘Keyword’) and custom (‘Document > Confidentiality’) properties. so if your code is able > > to preset values to these properties [everything should work]” > > > > How do I set the [Excel workbook] standard property “Keywords” to > “C_Restricted” and the user property “Document Confidentiality” to > “Restricted”? > The Document object should have a BuiltinDocumentProperties collection and a CustomDocumentProperties collection that you can query and manipulate. You'll have to discover whether the properties you need to tweak are builtin or not. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Excel / Word: setting properties
On Mar 2, 2018, at 12:07 AM, Niemann, Hartmut <hartmut.niem...@siemens.com>
wrote:
>
> print ('%r' % workbook.BuiltinDocumentProperties)
>
> gives me
>
> >
>
> What can I do with such an object?
Are you checking the Word object model? The BuiltinDocumetProperties method
returns a DocumentProperties object. I believe that is a collection of
DocumentProperty objects. So you should be able to say something like
for prop in workbook.BuiltinDocumentProperties:
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Re: [python-win32] Wait for process to be started
Ram Rachum wrote: > > I'm writing a Python program on Windows 7. I want the program to > patiently wait for a process to be started that has a certain name, > and then do an action after it was started. > > I can easily write the program using polling, i.e. checking every > second whether the process is active, but I want to be more efficient > and wait on the system event that is generated when a process is > started. Is that possible? Is this a process you are starting? If YOU start the process, you get a handle that you can wait on -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to get actual FILETIME from PyTime
Rob Marshall wrote:
> Thank-you. I also figured out that if I want the "actual" FILETIME I can do:
>
>>>> get_filetime = lambda i: ((i & 0x),(i - (i & 0x))>>32)
>>>> get_filetime(13174227726000)
> (905689856L, 30673639L)
>>>> low,high = get_filetime(13174227726000)
>>>> (high<<32)+low
> 13174227726000L
A FILETIME is just a 64-bit integer, and you can always pass it to APIs
that way. The only reason the structure has it in two parts is because
the Microsoft C compilers of the early 1990s did not have a 64-bit type.
Another way to do the unpacking is
struct.unpack('II',struct.pack('Q',i))
and the reverse:
struct.unpack('Q','strict.pack('II',low,high)[0]
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Re: [python-win32] Exception '-2147221164' while using win32com.client.Dispatch("SAPI.SpVoice")
On Oct 9, 2018, at 8:03 AM, Sai Ram wrote:
>
>We are using "win32com.client.Dispatch("SAPI.SpVoice")" for TTS to our
> target device from a Windows 7 desktop. We are seeing many of these
> exceptions: "Exception '-2147221164'".
> Is there a fix for this? Basically, wanted to know the reason for this
> exception and the fix for this.
COM exceptions are listed in hex. -2147221164 is 0x80040154, which is
E_CLASSNOTREG. Have you installed SAPI 5.1? It's not built-in.
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Re: [python-win32] COM: control menu bar
On Sep 30, 2018, at 6:25 AM, Emre CETIN via python-win32 wrote: > > Hello James. Thank you for your advice. I ran Spy++. At the logging options I > selected the menu bar portion of the other program. I selected WM_COMMAND > only and then chose all "Additional Windows" (except for the All Windows in > System). Then I clicked one of the menu items I wanted: Edit | Select All. It > provided me with the following line: WM_COMMAND wNotifyCode:0 (sent from a > menu) wID:57642. > > How can I use this class ID (57642) in Python to act as if it was > clicked/pressed? That's not a class ID, it's a window ID. You can trigger that by sending the exact same message you saw here. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Exception '-2147221164' while using win32com.client.Dispatch("SAPI.SpVoice")
Sai Ram wrote: I really did not know that this value would make difference. Apologies for the vague question. The actual exception is "-2147352567". That's 0x80020009, or DISP_E_EXCEPTION. That's really telling you to refer to the other code for the details. Also, we have around 5000 test scripts. Out of these, around 300 test scripts fails with this exception. So, I do not doubt any system issues here. Did you actually install the SAPI SDK? Do all 5,000 of the scripts use SpVoice? Do the 300 that fail use some particular subset? Are they all either 32-bit or 64-bit apps? -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Exception '-2147221164' while using win32com.client.Dispatch("SAPI.SpVoice")
On Oct 10, 2018, at 1:25 PM, Sai Ram wrote: > > We use Nuance's Vocalizer Expressive for voice and sapi5.dll. Also, we modify > the "Windows registry" to refer to this dll. What does that mean? Ordinarily, you would just register the DLL with regsvr32 once and for all. Are you making registry changes on the fly? — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] why do I get error 1804 from win32print.SetJob?
Glenn Linderman wrote:
Here is the code I'm using. Note that the variables js and rename are
the control variables if you need to tweak this to run in your
environment. js contains a substring of an existing document name, and
the idea is that the document name of the first matching spool job
having a document name containing that fragment will be changed to the
content of the rename variable by the code.
...
Here is the error I'm getting:
{'JobId': 27, 'pPrinterName': 'HL6180dw', 'pMachineName':
'STEPHEN', 'pUserName': 'Glenn', 'pDocument': 'duh', 'pDatatype':
'NT EMF 1.008', 'pStatus': None, 'Status': 8210, 'Priority': 1,
'Position': 0, 'TotalPages': 22, 'PagesPrinted': 0, 'Submitted':
pywintypes.datetime(2018, 11, 14, 21, 1, 27, 882000,
tzinfo=TimeZoneInfo('GMT Standard Time', True))}
Traceback (most recent call last):
File "D:\my\py\spool.py", line 109, in
win32print.SetJob( phandle, res[ 1 ], 1, jobinfo, 0 )
pywintypes.error: (1804, 'SetJob', 'The specified datatype is invalid.')
That's very odd. This is not from the Pywin32 code -- it has correctly
parsed your structure. That error is coming from the SetJob API itself
(ERROR_INVALID_DATATYPE). As an experiment, have you tried coding up
the exact same sequence as a C program to see if you get the same error?
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Re: [python-win32] Bug - Passing byref an array to a com method interpreted as a single element
rv...@free.fr wrote:
I'm trying to translate a VBA application to Python. I cannot change
the COM Server as its works also with others programs.
It seems I have a problem with win32com.client by passing an array of
double to a COM method.
VBA allows to pass arrays to COM server byref on the first element of
the array
...||
From typelib COM interface
|[id(0x0007), helpstring("Méthode GetValues")] HRESULT
GetValues([in, out] double* pValues); # pointer on array of double
[id(0x0008), helpstring("Méthode SetValues")] HRESULT
SetValues([in] double* pValues);|
...
It seems win32client do not interpret correctly the type expected by
the COM server, here float() instead of pointer on an array of float.
That statement is not accurate. The fault is not in win32client. The
root of the problem is that the function definition in your type library
is not COM-compliant. There are rules that need to be followed in order
for a COM interface to work seamlessly across languages, and you have
violated those rules. The proper way to pass an array is to use a
SAFEARRAY. Your definition, for example, cannot possibly work in an
out-of-process server, because there is no way for the marashaling code
to know how much data to send across. The GetValues case is doubly
hopeless. How can the server know how large the buffer is? How can the
client know how much data will be returned? You are simply not allowed
in COM to have that be assumed.
Win32client is quite correct in interpreting your definition as it
does. The fact that it works in VBA is an lucky accident. If you want
this to work reliably, you need to change the interface.
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Re: [python-win32] Bug - Passing byref an array to a com method interpreted as a single element
Tim Roberts wrote: rv...@free.fr wrote: It seems win32client do not interpret correctly the type expected by the COM server, here float() instead of pointer on an array of float. That statement is not accurate. The fault is not in win32client. The root of the problem is that the function definition in your type library is not COM-compliant. There are rules that need to be followed in order for a COM interface to work seamlessly across languages, and you have violated those rules. The proper way to pass an array is to use a SAFEARRAY. Your definition, for example, cannot possibly work in an out-of-process server, because there is no way for the marashaling code to know how much data to send across. The GetValues case is doubly hopeless. How can the server know how large the buffer is? How can the client know how much data will be returned? You are simply not allowed in COM to have that be assumed. Win32client is quite correct in interpreting your definition as it does. The fact that it works in VBA is an lucky accident. If you want this to work reliably, you need to change the interface. Having said all that, you may be able to do what you need with the "comtypes" module, which allows lower-level access to COM interfaces. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] python win32com.client; reverse engineer sql server timestamp
On Dec 17, 2018, at 5:20 PM, Anrik Drenth wrote: > > I'm looking for the mapping table / logic that will render sql server > timestamp values as win32com.client does. OK, then why did you not tell us what the win32com.client does? > I'm currently importing a text file into Access. The text file contains a > column with a timestamp value which has been extracted from sql server. The > values for the (Access String 50) column look something like > "0x0189CF01". That's a 32-bit integer. You need to be storing this as a 32-bit integer, not as a string. Or, best of all, as an Access date/time datatype. Exactly which data type in the SQL Server column? How was the text file generated? In virtually every case, SQL Server will export date and time columns as date time strings (that is, "2018-12-17". How did you get a hex representation? > Using VBA I want to convert these to the exact same value that win32com > creates. > > In python (sample code below) the timestamp value is stored as an 8 byte, > bytearray. Which then gets interpreted by Access. Which version of Python are you using? You are taking binary data and shoving it through a Unicode-to-ASCII conversion. That produces garbage. That's not a string. It's an integer. > Below is a sample of how the sql server timestamp value is stored in Access: > > SQL Server (Timestamp) | Access (Text 50) 0x0189CF01 | 003F49 > 0x0189D001 | 003F69 0x01B54DFF | 003F6D > 0x01F74701 | 003F4E 0x0189C003 | 003F70 > So it tries to do a mapping, sometimes 1 to 1, sometimes not as page 5 of the > below link demonstrates Right. You're producing garbage. The "3F" in there is the "?" character, which means "this character does not exist in the current 8-bit code page". It's not a Unicode string, don't try to treat it like one. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to obtain printer HANDLE as int in Python
paolo bonatti via python-win32 wrote: I'm trying to print PDF documents with pdfix sdk utilizing win32print. This PDF library requires printer HANDLE value as int directly not as a PyObject. Is there any way to obtain printer HANDLE value in Python code? (attached is a sample) hDC.CreatePrinterDC (win32print.GetDefaultPrinter ()) If that is getting you what you need, then win32print.OpenPrinter( win32print.GetDefaultPrinter() ) will get you the handle to that printer. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] win32api.FindFiles hangs (was COM registration hangs up: 32 bit Python 3.7 on 64 bit Win 7)
Boylan, Ross wrote:
Is this some kind of string conversion issue? My installation is borked?
Manual debugging statements show sys.argv[0] is 'BSTImport.py'.
win32api.FindFiles('BSTImport.py')
in a python 3.7 shell (32 bit) hangs.
That's quite bizarre. The code for win32api.FindFiles is
straightforward. Is this a special directory, like a net share or
something? If you ask for *.py, is BSTImport.py in the list you get back?
Do you code in C? You might code up a trivial C app to run a
FindFirstFile/FindNextFile loop with the same parameters to see if the
same thing happens. Of course, I'm not sure what the next step would
be, whether that worked or failed.
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Re: [python-win32] win32api.FindFiles hangs
Jim Bell wrote: Maybe it's not your installation of Windows that's messed up, but just a third party driver. Or someone has mis-configured something on the server. This net share Z: drive: what's the technology / software that's behind it? Is it a standard Windows share, or a third-party driver? (If it's a standard Windows share, is it a Microsoft server doing the sharing?) Yes, this is the right direction to go. Some NFS implementations, for example, are far less robust than one would really like for the corporate environment. You might also try temporarily disabling your virus scanner and see if that alters things. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] why do I get error 1804 from win32print.SetJob?
Glenn Linderman wrote: Of course, the GetJob is decoding the structure properly... but its PyBuildValue parameter strings are much more complex than the PyArg_ParseTupleAndKewyords parameter strings, and there is mention of TCHAR in the JobToPy, but not in the PyToJob, so that makes it further seem like my speculations above might have some chance of being the problem. I should not have scoffed at your speculation, because your analysis was correct. The win32print code is calling SetJobW, which expects Unicode, but the JOB_INFO_1 structure is filled with ANSI strings. That's a very nasty bug. I'll file a bug report. In the meantime, I'll fix up my little C++ example to do the job for you. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] why do I get error 1804 from win32print.SetJob?
Glenn Linderman wrote: I looked at the win32print.cpp file. There were lots of Python-internals stuff there that I don't really follow well. I didn't see anything obviously wrong, but I got to wondering about the code that builds the structure... it puts in UTF-8 text strings (which would be same as ASCII in the cases I'm considering, but what if someone has a non-ASCII printer name, or document file name, or ???). And I'm sure the A version of the Windows API probably is happy with ASCII, but does the 64-bit compilation call the A version of the Windows API or the W version? 32 vs 64 makes no difference here. SetJobA always expects 8-bit strings, SetJobW always expects 16-bit strings. SetJob maps to one or the other based on the absence or presence of #define UNICODE. The routines that convert Python strings to zero-terminated strings will do the right thing. And would the W version be happy with ASCII? Or would that produce an 1804 error? If you pass ASCII strings to the W API, it just means the strings are interpreted as garbage. The name will not be found. It shouldn't cause 1804. I went to ReactOS and looked at the source code for SetJob. ERROR_INVALID_DATATYPE is returned for exactly one reason: the pDatatype value is not in the valid list of datatypes for the print processor for this job. There's no reason for that; your structure says "NT EMF 1.008", which is almost always valid. This had to work at some point. All of these things get tested. I just don't know what would have changed. If I get motivated (I've already spent too much time on this ;), I'll see if I can get your script to fail here. And then of course, I've no idea what compilation parameters were used, either for your program (which works), or for win32print.cpp (which maybe doesn't). I built mine for non-Unicode. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] why do I get error 1804 from win32print.SetJob?
Glenn Linderman wrote: I've not coded up the equivalent C program, as I don't have a C compiler installed here, and haven't done any C coding for 8 or 10 years. Were you able to reproduce the problem, or is your error analysis based on code reading? I looked at the code. Plus, I recognized that 1804 is a Windows errors code, not a Python error. Let me see if I can write up a C++ test that would be useful for you. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Making a COM server that accepts COM objects
Boylan, Ross wrote:
I have a Python 3.7, 32 bit, COM server and am calling it from 32 bit Office
2010 in VBA. I am attempting to pass some COM objects from VBA to Python. The
trace collector full output appears below, but I think the key clues are
several messages like
in ._QueryInterface_ with unsupported
IID {0003---C000-0046} ({0003---C000-0046})
Those are not important. The COM framework is just probing to find out
what extras you support. 0003-etc is IMarshal and 001B-etc is
IStandardMarshal; both can be used to help in the RPC process.
and, later,
rst = fedb.OpenRecordset("foo")
AttributeError: 'PyIDispatch' object has no attribute 'OpenRecordset'
You can't just pass an Access database object to another process and
expect it to work. The support pieces aren't there. Thus, the crux of
your problem is this:
_reg_progid_ = "Fahy.BST"
# for unknown reasons the inprocess server isn't working
_reg_clsctx_ = pythoncom.CLSCTX_LOCAL_SERVER
That's the problem you need to chase. You need to be an in-process
server if you want to share state with the original code. What happens
when you register yourself as in-process? Note that the registry has to
look different for this.
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Re: [python-win32] python win32com.client; reverse engineer sql server timestamp
On Dec 18, 2018, at 1:05 PM, Anrik Drenth wrote: > > Couple of good insights there. Would you have example python code that shows > the Unicode-to-ASCII conversion in action? > > So 0x0189CF01 to 003F49 > > The current code is written in Python 2.7, its selecting the data from SQL > Server and writing it into Access 97. > As Access 97 is somewhat dated we want to get rid of this code and hand > responsibility back to the client. > > The sql server timestamp field is a rowid. It was used back in the day under > the mistaken assumption it was a datetime field. It is not, subsequently the > field exists but has never been used. Aha. Here's my alternate theory, then. I'll bet that field in the Access table is declared as "AutoNumber". In that case, Access would be assigning its own unique row number to the field, totally ignoring the incoming field from SQLServer. That would make a certain amount of sense, but you'd have to look at the other values in that field to be sure. > We still have to re-produce the same exact same value in the field on the off > chance it is used by the clients system. Don't you have the code that originally created those fields? It is absolutely pointless for us to guess how this was done. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] ExportAsFixedFormat's ValueError
Kaweit wrote: i make a question: doc.ExportAsFixedFormat(output, constants.wdExportFormatPDF,|Item||=||constants.wdExportDocumentWithMarkup, CreateBookmarks ||=||constants.wdExportCreateHeadingBookmarks)| but "ValueError",the argument was wrong. Cloud you help me? I think I need a Win32com Docutment. This is not a win32com issue, it is a Word issue. And it would have been easier if you had told us that you were using Word instead of making us guess. We don't know were "ExportAsFixedFormat" comes from. Why didn't you cut-and-paste us the exact error message? Did it tell you which argument was wrong? What, exactly, is "output"? It would be helpful to see the code leading up to this as well. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] hook the left mouse button down event on any window
Zhao Lee wrote:
I originally posted the question here
<https://stackoverflow.com/questions/55399565/hook-the-left-mouse-button-down-event-on-any-window>,
please help ,thank you !
I want to hook the left mouse button down event on any window, my code
as following :
|importwin32guiimportwin32uiimportwin32condefonMousePressed(self):print('onMousePressed',win32gui.GetCursorPos())deflistener():
windowHandle =win32gui.WindowFromPoint(win32gui.GetCursorPos())
clickedWindow =win32ui.CreateWindowFromHandle(windowHandle)
clickedWindow.HookMessage(onMousePressed,win32con.WM_LBUTTONDOWN)#
print('-registerMouseEvent', clickedWindow)whileTrue:
listener()|
However , the |onMousePressed| function was never called when clicked,
what is wrong ?
P.S. I know some similar projects such as PyUserInput
<https://github.com/PyUserInput/PyUserInput>, mouse
<https://github.com/boppreh/mouse>, pynput
<https://pythonhosted.org/pynput/keyboard.html#monitoring-the-keyboard>,
just want to know why my code didn't work.
Your code came across badly formatted, so I can't tell exactly what you
wrote. You aren't actually calling listener() from within a continuous,
tight CPU loop, are you? This function is going to get called thousands
and thousands of times a second. This is very poor practice, and it's
part of the reason these other modules exist.
You attach to an external window, install your mouse message hook, then
your function exits, the window object is deleted, and the hook is released.
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Re: [python-win32] hook the left mouse button down event on any window
On Mar 29, 2019, at 8:39 PM, Zhao Lee wrote:
>
> import win32gui
> import win32ui
> import win32con
>
> def onMousePressed(self):
> print('onMousePressed', win32gui.GetCursorPos())
>
> def listener():
> windowHandle = win32gui.WindowFromPoint(win32gui.GetCursorPos())
> clickedWindow = win32ui.CreateWindowFromHandle(windowHandle)
> clickedWindow.HookMessage(onMousePressed, win32con.WM_LBUTTONDOWN)
> # print('-registerMouseEvent', clickedWindow)
>
> while True:
> listener()
> time.sleep(8)
>
> what is wrong and what's the good practice ?
I TOLD you what is wrong. Let’s follow the flow. Every 8 seconds you call
listener. It does the following, very quickly:
* Fetch the window under the cursor, assuming the cursor is over a window.
* Create a Python window object around that window handle
* Install a hook to catch button down messages for that specific window
* Function exits, the window object is destroyed, and the hook is uninstalled
Then you go back to sleep. While you are alseep, there is no hook. The only
time you have a hook is the few milliseconds between your HookMessage call and
when the function returns.
The right answer is to use a package like pyHook to install a global hook.
This is exactly what it is for.
https://stackoverflow.com/questions/165495/detecting-mouse-clicks-in-windows-using-python
<https://stackoverflow.com/questions/165495/detecting-mouse-clicks-in-windows-using-python>
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Re: [python-win32] chapter 5 : implementing com objects with python
Benjamin McNeill wrote: Hello, I am trying to get this com server to work in VBA. I can register and deregister the server but I can not call it from vba. Any suggestions? I am using windows 10 and office 365 with python3.7. Remember that the bit-size must match. I don't actually know whether Office 365 is a 32-bit app or a 64-bit app, but your version of Python must match. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] adodbapi: paramstyle 'named' doesn't work as expected
Dennis Lee Bieber wrote: The loop is looking for the end of the parameter name by looking for a non-alphanumeric character. But your update command just... ends -- there is no non-alphanumeric character after the name to terminate the loop. INSERT syntax has a closing ) to terminate. I WOULD consider this a subtle bug in the ADODBAPI code. You are being too kind. This bug is not subtle in any way. Python is so good at string parsing -- there must be a better way to write that. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to get target of folder shortcuts
kurt wrote: Hello, I'm trying to get the target filename of windows shortcuts. The code below works great for regular shortcuts, but errors out on "folder shortcuts". ... The code below works great for regular .lnk shortcuts, but folder shortcuts give me: [...] persistFile.Load(fname,STGM_READ) pywintypes.com_error: (-2147024891, 'Access is denied.', None, None) The quirk with folder shortcuts is they have some DOS attributes set, which I suspect could be causing me trouble. Is there, perhaps, something I need to do to get my IPersistFile to ignore file attributes? Your code works for me, although the SFGAO_FOLDER bit is not set for my folder shortcut. If you do a "dir" of the folder where the link lives, what do you see? Is it actually a .lnk file of about a kilobyte? There are no DOS attributes on my folder shortcut. What do you see? -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Performing ReplyAll to outlook email message
Ahmed Matar via python-win32 wrote: I am trying to perform a reply all to an email message that I have passed into my python script. ... #what I would like to do now is do a “Reply all” with my reponse being “ResponseToEmail” Any ideas if this is possible? Sure, it's possible, but you have to do it all "the hard way". Create a new message, copy the Receipts list into the new message, set your body, send it. Not a lot of code, but it's a little tedious. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] COM Photoshop - Exception occurred
On Mar 8, 2019, at 9:08 AM, Ioannis Valasakis wrote:
>
> ...
> Currently, that this is the error I am getting and I can't seem to understand
> why, as I've seen online examples using the exact same code and it works.
>
> >>> desc.putReference(cTID("null"), ref)
> >>> desc.putBoolean(cTID("MkVs"), False)
> >>> app.executeAction(cTID("slct"), desc, 3)
> Traceback (most recent call last):
> File "", line 1, in
> File "C:\Python27\lib\site-packages\win32com\client\dynamic.py", line 516,
> in __getattr__
> ret = self._oleobj_.Invoke(retEntry.dispid,0,invoke_type,1)
> pywintypes.com_error: (-2147352567, 'Exception occurred.', (0, u'Adobe
> Photoshop', u'Illegal argument - argument 1\n- Required value is missing',
> None, 0, -2147220262), None)
Different versions of Photoshop? Could the “slct” action refer to a plugin
that isn’t present on your Windows 10 system?
The key point is that this is almost certainly going to end up being a
Photoshop issue, not a Python issue.
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Re: [python-win32] Facing issue while connecting to alm via python
Neeraj Chhabra wrote: I have one requirement, in which i need to connect to HP ALM and log a defect in jira using python. i tried to connect to alm through pywin32. but getting error. please check below code snippet and error - ... IDispatch = pythoncom.connect(IDispatch) pywintypes.com_error: (-2147221021, 'Operation unavailable', None, None) During handling of the above exception, another exception occurred: ... pywintypes.com_error: (-2147221164, 'Class not registered', None, None) It's likely that you are using a 64-bit Python but your ALM installation is 32-bit. An in-process COM server has to match the bittedness of the caller. Do you have the option of installing a 32-bit Python to see if it works from there? -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] connecting to labview executable
On May 12, 2019, at 12:53 PM, c.kristu...@hoc.net wrote: > > I think what he is saying that he can connect to the LabView IDE but he > cannot connect to the stand-alone executable once it is built. LabView > is an interpreter which comes with a compiler to build stand-alone > binaries. Yes, you are right. Do we know whether the standalone executable is SUPPOSED to act as a COM server? Somebody somewhere would have to register it. I would not be surprised at all if that only works with the IDE. That's probably a question for the LabView support forum. > Anyway, LabView can do socket comunication so I think this is the way do > go rather than reading LabView controls via pywin32. Agreed. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME cryptographic signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Retrieve Windows Notifications With pywin32
On Jun 2, 2019, at 6:06 PM, DAI VU via python-win32 wrote: > > ]I am new to python/pywin32. I have a task to check/retrieve/click on some > notifications in the "Action Center" posted by a particular windows app. Can > I use python/pywin32 for this? Are there sample codes that I can take a quick > look? Also, where can I find the DOC for pywin32? Well, here is the Microsoft repository of samples related to toast notifications and the action center. The examples are all C# and JavaScript, but they can be translated. https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/Notifications <https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/Notifications> There are lots of APIs for creating notifications, but I'm not aware of APIs to manipulate and respond to those notifications. Those notifications are there for a reason, and they are expected to be handled by a human user. What kind of notifications are you trying to dismiss? — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Retrieve Windows Notifications With pywin32
On Jun 5, 2019, at 2:25 PM, DAI VU wrote: > > Thank you for the response. I need to deal with toast notifications. I am not > sure if that answer your question. Well, I was really going for a philosophical point. Most toast notifications are things that the user needs to deal with. There are many things that would be inappropriate for you to dismiss. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Problem reading a shortcut (.lnk) with cPython 3.7 (32 bit)
David Hughes wrote: I'm in the process of upgrading my software from Python 2.7 to 3.7 now that wxPython has been migrated to 3. As part of a procedure for upgrading an end user's own installation I check for it's location via the desktop shortcut that Innosetup created during the original installation. That's not a particularly good method in the general case. I don't find much use for the desktop icon, so I suppress it. You might be better served to use the registry, in HKEY_LOCAL_MACHINE\Software\Python\PythonCore. 32-bit installations will be in HKEY_LOCAL_MACHINE\Software\WOW6432Node\Python\PythonCore (if you're reading from a 64-bit app). I have a procedure for doing this that worked/works fine with Python 2.7 that is very similar to the one published in /http://timgolden.me.uk/python/win32_how_do_i/read-a-shortcut.html/. Neither mine nor Tim's works under Python 3.7 (I haven't checked any other version of 3). With Tim's version, when the line name, _ = link.GetPath (shell.SLGP_UNCPRIORITY) is executed, after a delay it responds with /aborted (disconnected)/ and the program terminates, as does mine. Is it possible you have installed a 32-bit Python on a 64-bit system? Theoretically, you should be able to use CLSID_ShellLink from either one, but I'm trying to narrow things down. Tim's code works fine for me with Python 3.7.2 (64 bit) on Windows 10. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] connecting to labview executable
On May 9, 2019, at 11:50 PM, Kálózi Zsolt wrote: > > So this continously reads out the value from the frontpanel of the .vi, that > is called 'power'. > Unfortunatelly this only works if the .VI is running in the LabView IDE. > That is okay for the test environment but not okay in the real environment. > > I will have an .EXE file that was generated from the .VI, so I need to access > that one. How can I do that with this library? Because simply changing the > path to the executable path doesn't work. > Under 'advanced' I also tried to enable and give a name to the ActiveX > server, when I generate the executable, and give that name to the Dispatch, > but that didn't work either. I'm trying to interpret what you've said here. Are you saying that the win32com.client.Dispatch statement only connects to LabView if your executable is already running? If so, then all you should have to do is use os.spawn or subprocess.Popen to launch the executable. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME cryptographic signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] getvireference issue
On May 9, 2019, at 4:53 AM, Kálózi Zsolt wrote:
>
> I'm writing this mail by hoping someone could help. I have pywin32-224
> installed on my computer.
> The following code doesn't seem to work:
> import win32com.client
>
> labview = win32com.client.Dispatch("LabView.Application")
> VI = labview.getvireference(r'Controller.vi')
> I get the following error:
>
> AttributeError: ' instance at 0x43780248>' object has no attribute 'getvireference'
The actual spelling is GetVIReference. Does that work?
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Re: [python-win32] Dispatch command hangs
On Aug 14, 2019, at 6:12 PM, Joel Gross wrote: > I have a multi-threaded application that receives a large number of messages > (COM objects) in sudden bursts. During this time, I've noticed that if my > other thread attempts to create a new COM object via the Dispatch call, that > call seems to hang until the messages have been processed. This can take more > than a minute sometimes. > I am wondering if this is because the win32 side of things is still trying to > churn through all the messages? Is there a way to preempt this behavior to > ensure that the object I'm trying to create gets created immediately? > This is a complicated topic. Are you calling CoInitialize? By default, that will create a “single-threaded apartment”, where actions get handled by a single thread. You can try calling CoInitializeEx with COINIT_MULTITHREADED and see if that helps. But even then, you bang up against the Python interpreter lock, which only allows the interpreter to handle one thread at a time. I wouldn’t think you’d have to wait for the whole set of object requests to drain, but threading in Python is always tricky. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Dispatch command hangs
On Aug 15, 2019, at 9:28 PM, Joel Gross wrote: > > Yeah I'm calling CoInitialize. I can give CoInitializeEx a shot, but there's > no clear-cut way to set a priority for Dispatch? I'm not sure how these > objects are handled internally, is it just a regular queue? Is this an out-of-process server, so you’re receiving requests from other processes? If so, then I think you’re seeing RPC (Remote Procedure Call), which marshals the parameters back and forth, and I believe those are all first-come first-served. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] DoAction problem
On Jul 26, 2019, at 8:05 AM, sylvain.fe...@ville-ge.ch wrote: > > My photoshop action is doing : > - Open > - Smart sharpen > - Convert to Profile current document > - Save > - Close > > If Pillow is also able of "smart sharpening" and "converting to Profile > current document", your suggestion is very promising. Did you even look? Pillow includes both a tunable “sharpen” filter and an “unsharp mask” filter, as will every competent graphics library. The color profile conversion isn’t really necessary. My guess is you’re not really sure what it does anyway. > Is there any place on the Web where I can find reference to psApp tasks like > "DoAction", "Export", the parameters they need, etc.? It seems that it is not > so easy. Well, this is maybe again a very naive question. Those are Photoshop questions. Adobe has documentation on the Photoshop APIs, and they have their own user forums. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] DoAction problem
sylvain.fe...@ville-ge.ch wrote: New in Python and coding. My goal : Apply recorded actions in Photoshop to many folders and subfolders containing images. My inspiration : Web page explaining a Python code using pywin32 : https://vsfxryan.com/portfolio/python-photoshop-action-scripts/, but I do not want to define functions, I am too much beginner for this. Problematic code : #run action script which opens the file, convert it to jpg, save and close it. psApp.DoAction( actionScript, 'jpg_q8') Error message : NameError: name 'actionScript' is not defined Could you please help me solve this? Functions are fundamental to programming in general and Python in particular. You need to understand them if you're going to get anything done. Otherwise, you'll end up typing the same code over and over and over. In this case, it looks like you are trying to run this code outside of the function it was defined in. The error is pretty much self-explanatory; you're trying to pass the value of the variable "actionScript" to the DoAction function, but there is no variable called "actionScript". Look at the code itself. You'll see that "actionScript" was passed in to the function as a parameter, because he wanted to be able to trigger different actions with the same code. It should be clear that what you need to pass here is the action you want to take. However, if you really need to script common actions to images and folders, I strongly suggest you take a look at the ImageMagick package. It is an incredible powerful photo manipulation tool that is all driven from the command line. It can be a bit tricky to set up the command lines, but once you do, it works the same way, time after time. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] DoAction problem
sylvain.fe...@ville-ge.ch wrote:
Some little progress :
Problematic code modified :
psApp.DoAction('jpg_q8','Default Actions') # where 'jpg_q8' is the
recorded action and 'Default Actions' the folder where the action is
saved.
Right -- the "action set" in Photoshop terms.
No more error message, but... no result : my tif files are not
transformed to jpg files.
The Python part is now working. WE have no way of knowing what your
Photoshop action is doing. Is it actually doing the save, or do you
need to call psApp.Export?
And, by the way, if ALL you need to do is convert TIF to JPG, you
certainly do not need to launch the Photoshop behemoth for that. Just
use pip to install "pillow", the Python Imaging Library, and all you
need is this:
from PIL import Image
Image.open('myfile.tif').save('myfile.jpg')
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Re: [python-win32] Calling Methods of an object returned by an COMObject method
On Sep 19, 2019, at 10:51 AM, Andreas Merl wrote: > > I am trying to automate CST Studio. > ... > As example “Quit()” > When I try to call this method nothing happens > mws.Quit() > It should quit the project. > What happens: > Nothing > > For me it looks as the methods of mws are never called. Have you tried the other methods, or are you basing that conclusion on exactly 1 sample? How can you tell it didn’t quite the project? Does the app open a new instance when you call EnsureDispatch? Excel, for example, is perfectly happy to run in the background as a COM server, so there’s no visible change when you quiet. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to set value with PyIPropertyStore
On Nov 10, 2019, at 4:13 PM, Peng Chen wrote: > > then I tried > riid = "" > ctx = None > properties = propsys.SHGetPropertyStoreFromParsingName( > file_name, ctx, shellcon.GPS_READWRITE, riid) > it reported: > (-2147221005, 'Invalid Class String', None, None) That’s correct. “” is not a valid class string. SHGetPropertyStoreFromParsingName returns a COM interface, and you have to tell it what interface you want. It is usually IPropertyStore. What are you trying to do here? Are you porting some C++ code you found into Python? — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] NotifyAddrChange
On Nov 5, 2019, at 2:24 AM, Yvan Manon wrote: > > I'm new with pywin32 > I would be inform about network ip change, is pywin32 can access to > NotifyAddrChange > https://docs.microsoft.com/en-us/windows/win32/api/iphlpapi/nf-iphlpapi-notifyaddrchange > or is it a way to handle this or any advise to manage it Did you do any web searching at all for this? Google is way faster than this mailing list. The first two hits show you how to do this with ctypes, or try cab use this package: https://sourceforge.net/projects/iphelpers/files/ <https://sourceforge.net/projects/iphelpers/files/> — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to set value with PyIPropertyStore
On Nov 7, 2019, at 2:33 PM, Peng Chen wrote: > > I tried: > dateShifted = propsys.PyPROPVARIANT( > mDate + shift_time.timedelta_obj, pythoncom.VT_DATE) > and it reports: > module 'win32comext.propsys.propsys' has no attribute ‘PyPROPVARIANT' It is embarrassing that I had to figure this out twice today. dateShifted = propsys.PROPVARIANTType(mDate+shift_time.timedelta_obj, pythoncom.VT_DATE) The PROPVARIANTType function returns a PyPROPVARIANT object. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to set value with PyIPropertyStore
On Nov 14, 2019, at 4:15 PM, Peng Chen wrote: > > Nah, thanks, the stuff I'm trying to do is actually quite simple. > I try to read the "Encoded date" info from video file, apply a timeshift and > write it back. > I searched a few different libs, they are either works for image files only > or it's read only and I can't write. > So I thought of pywin32 and really didn't expect this coming… I’m pretty confident that the Windows property system will not be able to change the file itself. These APIs might have filters that let them READ items from the media files, but I seriously doubt they will be to MODIFY media files. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to set value with PyIPropertyStore
Peng Chen wrote: Hi Tim, Thanks for the reply. Sorry for the late. I just found your email today. Yes I tried with this code: from win32comext.propsys import propsys, pscon VIDEO_DATE_ENCODED = pscon.PKEY_Media_DateEncoded properties = propsys.SHGetPropertyStoreFromParsingName(file_name) mDate = properties.GetValue(VIDEO_DATE_ENCODED).GetValue() # got the datetime object dateShifted = mDate + shift_time.timedelta_obj # shift date properties.SetValue(VIDEO_DATE_ENCODED, dateShifted) # set value properties.Commit() and I got error message when executing to properties.SetValue(VIDEO_DATE_ENCODED, dateShifted) I found it. Try dateShifted = propsys.PyPROPVARIANT(mData + shift_time.timedelta_obj, pythoncom.VT_DATE) -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] passing array by reference (3)
On Oct 27, 2019, at 5:06 AM, lcy wrote: > > Hello： > Following the tips you mentitoned in the year of 2017 > I tried to test the Catia.SystemService.Evaluate() in pytyon, However it > cannont work, anything went wrong with my code? Any advice will be > appreciated, thank you! What DID happen? You don’t have a newline at the very end of the string. CATIA might need that. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to set value with PyIPropertyStore
Peng Chen wrote: I'm working on a script to shift video media creation time. I can see there is a function PyIPropertyStore.SetValue(key, value) and PyIPropertyStore.Commit() to write the date back, but I'm not sure how to construct the value because it requires PyPROPVARIANT type. I can't figure out any where to import this type and doesn't know how to construct it. PyPROPVARIANT is generally a return type. In a case like this, I would expect that you would simply pass the datetime value, and the interface code would convert it into a variant. Have you tried that? Did you get an error? -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Word Application saving to PDF
On Oct 8, 2019, at 9:58 AM, Holland, James via python-win32 wrote: > > I’m trying to open some rtf files to Word and then save as PDFs. > ... > Traceback (most recent call last): > > File "", line 15, in > doc.SaveAs2(output_dir + '/' + 'rtfTest.pdf', FileFormat = wdFormatPDF) > File > "C:\Users\CMTHOL~1\AppData\Local\Temp\gen_py\3.6\00020905---C000-0046x0x8x7\_Document.py", > line 461, in SaveAs2 > , CompatibilityMode) > com_error: (-2147352567, 'Exception occurred.', (0, 'Microsoft Word', > 'Command failed', 'wdmain11.chm', 36966, -2146824090), None) Did you do any web searching for this? -2146824090 is 0x80A1066, which is a security issue. Do you have permission to write into that directory? Are you able to do this same action if you do it by hand? — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] pure python way to open a file with write deny for others
Robin Becker wrote: On 05/03/2020 16:04, Eryk Sun wrote: On 3/5/20, Robin Becker wrote: I want to be able to read a windows file which is being periodically written by another process. I'm having difficulty reconciling this sentence with the subject line. OK I want to read the (small) file completely. The other process may try to re-write the file while I am reading it. I thought that denying them write permission for the short time I have the file open for reading might make incomplete files less likely. So far the applications seem to be able to operate in this fashion and the small files seem to be complete. Remember that the "deny write" permission only applies to opens. And if you have "deny write" set, the other open will fail -- it won't just delay. You can always use win32file.CreateFile directly, and bypass the Python filtering. Alternatively, and perhaps more hacky, you can use subprocess to copy the file to a safe temporary name. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] VT_DECIMAL variant
Nikita Lepetukhin wrote: Tim, thanks for replying! VT_CY number doesn’t fit the precision I need (16 digits to the right of the decimal point). It has only 4 digits according to this description: https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-oaut/5a2b34c4-d109-438e-9ec8-84816d8de40d The decimal (VT_DECIMAL) has precision up to 28 places (https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-oaut/b5493025-e447-4109-93a8-ac29c48d018d <https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-oaut/b5493025-e447-4109-93a8-ac29c48d018d>). It is exactly the same as python decimal has. They match to each other exactly and much better than VT_CY and python decimal. So maybe it wasn’t the best solution to automatically convert python decimal to VT_CY variant. Whatever.. what’s done is done. It's possible this is a misunderstanding in the pythoncom code. CURRENCY goes back to the days of Visual Basic 6, whereas DECIMAL is much more recent. It may be appropriate to file a bug report. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] VT_DECIMAL variant
Nikita Lepetukhin wrote: ok, I will report a bug. But to be honest I'm trying to find the solution. Do I understand right that currently there is no way to pass VT_DECIMAL variant from python to com? Oh, it is possible; the library does many automatic conversions, but it's possible to do it by hand. I just don't know the recipe. If Tim Golden is listening, perhaps he can point us to a reference. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] VT_DECIMAL variant
> On Apr 14, 2020, at 7:09 PM, Nikita Lepetukhin wrote:
>
> I use win32com module and everything is ok but I cannot find the way how to
> pass VT_DECIMAL variant value to COM object's method.
> ...
> This is how the interface is described in gencache:
> class IProperty(DispatchBaseClass):
> CLSID = IID('{0A4C05A0-107B-4A8B-9E34-44ED9B117A25}')
> coclass_clsid = IID('{2171DCF1-B70B-4CAB-9EB7-F7FED71956B4}')
>
> _prop_map_get_ = {
> "Value": (0, 2, (12, 0), (), "Value", None),
> }
That’s a property that returns a VT_VARIANT.
> In python code I get the object by the following way:
> ...
> I need to pass here VT_DECIMAL variant (due to data precision requirements)
> but it comes to COM object implementation as VT_R8 variant.
> I tried to use decimal python type but it comes as VT_CY variant.
>
> Could you help me to find out how to pass VT_DECIMAL variant from python to
> COM?
> I would appreciate your help very much!
The VT_CY type, the Python decimal type, and the C# decimal type are all the
same — a 128-point fixed point value with 92 bits of precision. That’s
probably what you should use. In order to use VT_DECIMAL, then you probably
can’t use automatic translation.
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Re: [python-win32] User login details when running a service
On Apr 11, 2020, at 6:32 AM, Waseem Afser wrote: > > Is there any possible method to get the logged in user's username from a > windows service ? Your assumption that there is only one "logged in user” is false, which is why the information you seek is not readily available. There is a WMI query that can return the name of all logged in users: https://stackoverflow.com/questions/5218778/how-do-i-get-the-currently-logged-username-from-a-windows-service-in-net <https://stackoverflow.com/questions/5218778/how-do-i-get-the-currently-logged-username-from-a-windows-service-in-net> — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME cryptographic signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to change print copies
On Apr 22, 2020, at 10:10 PM, Pavel Olifer wrote: > > i use your package for changing printer settings (duplex, copies). > for duplex it is work, but for copies it doesn’t. Some Windows printers don’t honor the “Copies” selection directly. The application has to generate multiple copies on its own. Have you seen a multi-copy setting work using the native driver? — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] [win32com] Meaning of "TypeError: Only com_record objects can be used as records"?
On Apr 30, 2020, at 11:47 AM, Terry Davis wrote: > > Thanks for the pointer! I'll let the maintainers of this software know. > > Do you know if applying this fix is sufficient for win32com to successfully > handle returned structs? I don’t know. That was the fix suggested by the old mailing list threads I found. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] [win32com] Meaning of "TypeError: Only com_record objects can be used as records"?
On Apr 27, 2020, at 12:58 PM, Terry Davis wrote:
>
> I looked in the generated file, and its RecordMap dict was empty, with a
> comment. There are a dozen or so structs that should be available to the
> interface. Is there any workaround for this, such as manually defining each
> com_record?
>
> RecordMap = {
> ###'LegacyMicroSamplerInfo': '{----}', #
> Record disabled because it doesn't have a non-null GUID
> }
>
> I was also given an idl file, which includes record definitions, like this
> one:
>
> typedef struct SoftwareInfo {
>BSTR name;
>BSTR version;
> } SoftwareInfo;
>
> Is there something missing from the idl file that's causing these to be
> missed by win32com?
Well, yes. There are rigid rules for writing IDL to make a valid dispatch
interface, and generic structs like that are not in those rules. Some people
get the idea that anything they can express in C++ can be shoved in a COM
interface, but it ain’t so.
You should be able to add a GUID attribute to the IDL:
[ uuid(12345678-1234-1234-1234-123456789ABC) ]
typedef struct SoftwareInfo {
…
} SoftwareInfo;
Just generate a new GUID for each one.
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Re: [python-win32] How to install pywin32 for Text only/TTY, excluding all GUI components
On May 23, 2020, at 4:27 AM, Markus Kramer wrote: > > Hello, > I would like to discuss and contribute to an alternative pip package without > GUI: > - pip install pywin32 continues as is, e.g. includes Pythonwin. > - pip install pywin32nogui would contain no GUI components, e.g. MFC.dll. > What are your thoughts? What is the point? Installing a package does not mean you are required to use all of it. If you ship a package that doesn’t need the UI components, then your package will not include the components. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] how to use win32process.CreateRemoteThread
On Sep 10, 2020, at 7:24 AM, june y wrote: > > <https://stackoverflow.com/posts/63814377/timeline>i am studying > win32process of pywin32. > > but, i encounter a problem. > > problem is I don't know win32process.CreateRemoteThread wants what arguments > CreateRemoteThread does not work with Python functions. It is a C API, and it expects to be handed the address of a C function in the other process. id(x) returns to you an address, but it’s an address that has to be interpreted by the Python interpreter run-time, and the Python run-time will not be part of the other process. If you want to do threading in Python, use the ’thread’ or ’threading’ modules. Don’t use win32process for that. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] pywintypes.com_error: (-2147221005, 'Invalid class string', None, None)
Shaik Saleem Basha wrote: When I downloaded install python by default it installed 32bit version only so pywin32 also I installed 32bit only Quicopc library is installed If QuickOPC is a 64-bit component, then you need to call it from a 64-bit process. This is not always an easy thing to determine. If a company wants to support both 32-bit and 64-bit processes, then it has to install two different COM servers. I suggest you describe your problem to the QuickOPC folks; they would know right away if this were the issue. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] pywintypes.com_error: (-2147221005, 'Invalid class string', None, None)
Shaik Saleem Basha wrote:
Hi,
I’m using python 3.8.5 32 bit and also I have installed pywin32 by
this command pip install pywin32 but when I execute my coed i’m
getting the following error pywintypes.com_error: (-2147221005,
'Invalid class string', None, None)
My code :
import win32com.client
client = win32com.client.Dispatch('OpcLabs.EasyOpc.DataAccess.EasyDAClient')
value = client.ReadItemValue('','OPCLabs.KitServer.2', 'Demo.Single')
print('value:',value)
The most obvious question, of course, is do you actually have the
QuickOPC .NET library installed?
Why did you choose the 32-bit Python, instead of the 64-bit Python?
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Re: [python-win32] pywintypes.com_error: (-2147221005, 'Invalid class string', None, None)
On Sep 8, 2020, at 9:18 PM, Shaik Saleem Basha wrote: > > Thank you for your response I will to that . > > But my issue is not only with Quickopc , I have installed OpenOPC in that > also I’m getting same error OpenOPC is just a wrapper around the other OPC clients. If you have 64-bit clients, OpenOPC will also fail as well. However, I do not see QuickOPC in the list of classes supported by OpenOPC. > In my Case pywin32 is not matching with the version python I’m using . Why do you think so? You have Python 3.8, and the Pywin32 is for Python 3.8. If there were a mismatch, you couldn’t call Dispatch at all. > Can you please suggest me the versions which I can use to solve this errors , > because the same version I’m using in another windows laptop there I’m not > getting this errors. Either something has gone wrong with your QuickOPC installation, or you need the 64-bit Python. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Strange issues when using pywin32 to develop solidworks
On Oct 5, 2020, at 5:45 PM, nicolas jacky wrote:
>
> I test below code snippets in vscode with enviroment of python 3.8, pywin32
> build 228, solidworks 2017 API sets and created .py files by makepy, I get
> some strange errors.
> first snippet
>
> # -*- coding: utf-8 -*-
> from win32com.client import *
> from pythoncom import *
> swx = Dispatch("SldWorks.Application")
> swModel = swx.ActiveDoc
> mathUilty = swx.GetMathUtility
GetMathUtility is a method, not a property. You need to call it as a function:
mathUtility = swx.GetMathUtility()
ActiveDoc is a property, and so should not need parens.
> Running this code and vscode says:
>
> line 15, in
> swModel.AddComponents3(vtName,vtTrans,vtCoordName)
> TypeError: 'NoneType' object is not callable
> If I code it like this 'swModel.AddComponents3' then it's ok.
>
What is the difference?
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Re: [python-win32] AES based win32crypt lib for python3
On Oct 5, 2020, at 8:24 AM, Raja Sekhar wrote: > > I have seen win32crypt lib for python, And it is built on DES algorithm. Sort of. Triple-DES is used to protect the master key derived from the credentials, but I’ve never seen Microsoft say what they actually use to encrypt the data blob. > I am searching for such library in Python using AES Algorithm. I have gone > through pyAesCrypt, Crypto.Cipher which is taking an explicit key for > encryption. > I would be grateful if you could help me to find a library in python3, > which uses AES encryption library similar to win32crypt which encrypts data > using a session key derived from current user's logon credentials as in > ‘CryptProtectData’ > function. Nope. Remember that win32crypt is nothing but a thin layer that calls the Windows CryptProtectData API. The API does a remote procedure call into the Windows LSA (Local Security Authority) to get access to the login credentials through an undocumented internal function. You can certainly find AES encryption for Python, but it’s not going to use the login credentials. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Any update on this issue? https://github.com/mhammond/pywin32/issues/1568
On Sep 23, 2020, at 10:46 PM, Patrick Bolliger wrote: > > I experience the same problem as described in the issue > (https://github.com/mhammond/pywin32/issues/1568 > <https://github.com/mhammond/pywin32/issues/1568>). > I reached out to Mark Hammond who suggested to ask on this mailing list. > > Also tried to work with makepy.py -d to identify possible libraries but > nothing found. > It is my office computer switched from WIn7 to Win10, Excel is 64-bit version > (Not having any admin rights, so not possible to investigate very deep) > > So I am not sure if as the library is called „win32com“ it can not work on > 64-bit Excel, so any plans for win64com? :-) If you have a 64-bit Python, then your win32com is a 64-bit library. Exactly which error do you get? That large negative number is a COM error code. Are you sure you still have Excel installed? Are you quite sure it’s a 64-bit Excel? — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME cryptographic signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] python-win32 Digest, Vol 205, Issue 5
On May 24, 2020, at 9:21 AM, Markus Kramer wrote: > > The points are: > - Reduce vulnerability. The MFC library is large and (earlier? versions) > contained CVE's. Whatever vulnerabilities there might be aren’t a factor if you aren’t using them. > - Reduce maintenance cost. By shipping less, you need to observe less, and > patch less. You are missing the point. Pywin32 simply makes all those thing available to you. You don’t have to use them. And if you aren’t using the graphical interfaces, then you aren’t shipping them. The Python installer apps only include the things your script needs. If you don’t need graphics, then graphics DLLs won’t be included in your package. And your proposal will, of course, INCREASE the maintenance cost for the Pywin32 programmers, who now have to deal with multiple packages. > - Reduce resources. Less size mean less disk space and less network bandwidth. The MFC DLLs are about 100MB. At today’s mass storage prices, that’s 3/10 of one American penny. Network bandwidth will not be an issue for your applications, because MFC won’t be included in your application. > Then you wrote > > If you ship a package that doesn’t need the UI components, then your > > package will not include the components. > > This is my goal. > I don't get what you refer to with "package". > Currently, `pip install pywin32` will include the UI components, even if they > are not needed. When I say “package”, I mean an application package that you want to distribute, created by something like pyinstaller. It will only include the components your application needs. I just don’t see that there is anything to gain in making such a substantial change. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to install pywin32 for Text only/TTY, excluding all GUI components
On May 26, 2020, at 6:29 AM, Vernon D. Cole wrote: > > I don't understand. If I include pywin32 as a pip requirement, then I get > the whole thing, I think. How can I "ship a package" without carrying the > unneeded parts around? I am under the impression that most people shipping Windows Python applications do so using something like Pyinstaller or Py2Exe, which packages up something that looks to the end user like a single executable, but which actually contains a zip file with the necessary modules and DLLs. The zip file only contains the parts of pywin32 that are actually required by the application. If you’re shipping your application via pip on WIndows, then virtually everyone will already have pywin32. It is a critical component. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Licensing requirement for usage of win32com APIs through python package (pywin32)
On Aug 2, 2020, at 12:48 PM, Adil Mujeeb wrote: > > I couldnt see my question in https://mail.python.org/pipermail/python-win32/ > <https://mail.python.org/pipermail/python-win32/> > I am not sure if it gets delivered or not. You waited less than 30 minutes before complaining. Mailing lists take longer than that. > On Sun, Aug 2, 2020 at 12:19 AM Adil Mujeeb <mailto:mujeeb.a...@gmail.com>> wrote: > > What is the license clause if this python script will be used to test a > commercial Application development? The license does not change based upon what you’re writing. If you’re not releasing this to the public, then the license is totally irrelevant. You can do whatever you want internally. > I wanted to be sure that this allows in creating scripts to test commercial > product and if internally allows Microsoft license. How does a Microsoft license get involved? I think you’re worrying more than you need to here. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Pythonwin.exe - trouble on the starting line
ejohn...@earthlink.net wrote: I wanted to look into using Pythonwin to see how difficult it would be to build GUIs using MFC. This isn't what you asked for, of course, but in my opinion you would be better served to start with wxPython. The basic philosophy is somewhat similar to MFC (the two libraries started at pretty much the same time), and wxPython has the advantage of being cross-platform. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Server Exectuion Failed
On Nov 12, 2020, at 12:32 PM, Bob Fang wrote: > > I have an application which utilise win32com to control a software > (powerworld if you know what it is). Once I have dispatched a new object I > can see in task manager there is a new process created which is running and I > can call command through the win32com object -- this is what I want to do and > suits me well but I noticed two things: > > 1. The process I created seems to be persistent and will not die even if I > explicitly deleted my object using `del` in Python. Is there a way to fully > close the process after I am done with my object? It’s up to the the application. Out-of-process servers often provide a “close” or “exit” method to tell them to clean up. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Use TPM from Crypto API
On Nov 22, 2020, at 4:16 AM, Antoine FERRON via python-win32 wrote: > > Can you confirm that TPM "Microsoft Platform Crypto Provider" requires "CNG", > and pywin32 is only "CAPI" capable ? This is not a Python question at all. Look at the MSDN documentation page for the CryptEnumProviders API. You’ll see that it is deprecated, and only accesses the base cryptographic provider and the enhanced cryptographic provider. Remember that pywin32 is, in almost every case, a relatively thin wrapper around the Windows APIs. > Anyway, do you have some ideas in mind to reach my goal ? The APIs from ncrypt.dll are not, as of yet, exposed in pywin32. You can certainly use ctypes to access them. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Using python to create outlook rules - comtypes (working) vs. pywin32 (not working)
Caio Kauffmann wrote: I am a hobby programmer and after days trying to figure out what I am doing wrong, I still can’t finish a project because of the issue I listed in this topic in stack overflow: https://stackoverflow.com/questions/64594689/python-comtypes-working-vs-pywin32-not-working-using-python-to-create-o This is not Visual Basic. The following statement does nothing in Python: |oFromCondition.Recipients.ResolveAll| If you want the method to be called, you have to call it: |oFromCondition.Recipients.ResolveAll()| -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] how to code pywin32 run existing window task scheduler?
On Jan 13, 2021, at 8:07 PM, Pongthorn Sangkaphet wrote: > I am interested in pywin32 . I am going to use it to run window task > scheduler through Django web application ? > > Does pywin32 provide some features or method to run window task scheduler? > Obviously, since you’re already using them. ;) > I have tried already but error > That’s 0x80070005, which is ERROR_ACCESS_DENIED. Have you tried running this from an elevated process? — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Basic question about pywin32, does it work with 64 bit versions of O365?
On Jan 21, 2021, at 8:23 AM, Charlie Lamm wrote: > > I am contemplating rolling out some pywin32 scripts but my office has a > combination of 64 bit and 32 bit local office365 builds. > Q: Will pywin32 scripts work w/ 64 bit office? > Because of shelter in place I don’t have a W10 machine running 64 bit office > to test this on, but maybe someone knows? Usually, with a COM server, the bit size of your Python must match the bit size of your COM server. So, you'd need to use 64-bit Python to call a 64-bit COM server. (Note thet pywin32 is available for both 32-bit and 64-bit Pythons.) However, the Office applications are out-of-process servers, so there’s a proxy in the middle, and that should let it work. — Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Error: VARIANT Type is unknown
Olle Pontén wrote: Hmm ok, I could find the following information using OLEView (se attachment). It states that the two in parameters are noted as VT_LPWSTR for the scriptCmd command. Would that mean that I have no way of interfacing with them at all? No, it doesn't mean that! If it doesn't ask for a variant, then you don't deliver a variant. Did you try just passing a string, as Mark suggested? -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Issue with monitor off
anteqqq1 wrote: Hello there, I have a question concerning Win32 usage. The idea is that after operations in python i want to turn my monitor off but when i use Win32 command win32gui.SendMessage(win 32con.HWND_BROADCAST, win32con.WM_SYSCOMMAND, win32con.SC_MONITORPOWER , 2) the monitor not only goin off state but the machine is also going sleep mode . My question is : Is there any way to prevent machine going to sleep ? The only thing i need is to turn monitor off :) The operating system can do this for you automatically, in the "Power & Sleep" control panel page. -- Tim Roberts, t...@probo.com Providenza & Boekelheide, Inc. smime.p7s Description: S/MIME Cryptographic Signature ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
