On 12/08/21 9:17 pm, Salih KUYUMCU via python-win32 wrote:
I create a String
value before the methods and try to return these values in another
method. I get the problem local variable 'xxx' referenced before
assignment.
It sounds like you may want to store the value in an attribute
of an
On 4/06/21 4:59 am, Dennis Lee Bieber wrote:
Many video apps don't display in "Windows". The window you grabbed is a
basically a hole through which the graphics chips are rendering and are not
available, and the render is not part of the window itself.
When grabbing the entire
I recently tried to install a COM server written in Python and
ran into a small problem. The procedure I used was this:
1. Install Python 3 using the standard Windows installer, as
Administrator, for All Users, adding Python to the path.
2. pip install pypiwin32
3. Run my script for
Tim Roberts wrote:
Is it possible your 2008 laptop had had the registry changes necessary to
associate .P files with Excel, but your current laptop does not?
He's running a program that explicitly tells Excel to open the
file, so extension associations don't come into it. What
matters is
Manowitz, David wrote:
Is it possible, either via the win32com extensions or the comtypes
package (or some other package), to call to an unregistered COM
library?
It does appear to be possible, using a manifest file:
https://msdn.microsoft.com/en-us/library/ms973913.aspx
--
Greg
Bob Hood wrote:
I'm probably missing some crucial point here, but with Python being the
host environment, why wouldn't the Python keyring module provide the
hardened storage the OP is seeking?
The same problem arises. If the program can get the password
out of the keyring, then so can any
Alan Gauld wrote:
And for interest only, where is COM in the world
of .NET and Windows 8+ etc? Are there better options
today?
As far as I understand, not always. If the functionality
you're after happens to exist in the form of a .NET
library, and you're willing to use a .NET-compatible
Tony Cappellini wrote:
Do you have any ides why running a terminal program written in
(presumably C, mentioned in my original message) doesn't seem to suffer
from the problems that my python app does, even when transferring the
data at much higher baud rates?
Could the terminal program
Manfred Schulte-Oversohl wrote:
I'd like to use a combobox control. Getting it with dialog is no problem.
But I could not create a combobox on a window.
I had the same problem -- pywin32 is missing a CreateComboBox
function.
After much frustration, I found the following workaround:
hwnd
In PyGUI I have a need to find out whether the application
has any visible windows, so I can quit when the last visible
window is closed.
However, I can't seem to find a way of iterating over all
the windows belonging to the application, without also
getting windows belonging to *other*
Tim Golden wrote:
Just for information, my nearly-what-you-want is here:
http://timgolden.me.uk/python/win32_how_do_i/find-the-window-for-my-subprocess.html
Yep, I came up something similar -- was just wondering whether
there was some more obvious way that I was missing. Seems not.
Thanks,
geoff wrote:
Greg, I had to solve this problem in another application and ended up
using the array module and the with the slice syntax.
import array
input = rgbaRGBA1234
ba = array.array('c', input)
ba[0::4], ba[2::4] = ba[2::4], ba[0::4]
Yep, I was thinking the same thing myself. I'll
Colin Brown wrote:
Macintosh:PyGUI-2.5 colin$ python setup.py install
Traceback (most recent call last):
File setup.py, line 12, in module
from distutils_extensions import pygui_build_py
ImportError: No module named distutils_extensions
Sorry about that! The missing file is attached, and
PyGUI 2.5 is available:
http://www.cosc.canterbury.ac.nz/greg.ewing/python_gui/
Lots of new stuff in this version. Highlights include:
- Improved facilities for customising the standard menus.
- Functions for creating PyGUI Images from PIL images and numpy arrays.
- ListButton - a
Mark Hammond wrote:
I think you just want a CreateWindow(Ex) with Combobox as the class.
Yes, but the puzzle was how to get a PyCComboBox object rather
than a raw window handle.
I discovered it can be done by calling CreateWindowFromHandle
on the resulting handle, but I don't think I should
How are you supposed to create a PyCComboBox? There
doesn't seem to be a CreateComboBox function anywhere.
I tried using CreateControl(COMBOBOX, ...) but it
says that the CLSID is invalid.
--
Greg
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Vernon Cole wrote:
The problem is that the Windows combobox does not allow for the user
to type more than one letter to select an item from the list
I'm not sure it's necessary to replace the entire thing just to
fix that -- it ought to be possible to override the keyboard event
handling and
Can anyone think of an efficient way to convert a string
full of RGBA image data to BGRA, using only what's available
in the standard library?
I'm trying to add a function to PyGUI for creating an Image
object from arbitrary data. The problem I'm having is that
GDI+ on Windows expects BGRA,
Tim Golden wrote:
Backticks are a little-used alternative to
the repr () function -- deprecated in Python 3 ISTR.
Actually it's been *removed* in Python 3:
Python 3.1.2 (r312:79147, Mar 2 2011, 17:43:12)
[GCC 4.2.1 (Apple Inc. build 5664)] on darwin
Type help, copyright, credits or license
Gabriel Genellina wrote:
I think AddFontResourceEx is what you are looking for.
http://msdn.microsoft.com/en-us/library/dd183327(v=VS.85).aspx
Yes, that sounds like it may do what I want, thanks.
--
Greg
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Is there a way to tell an ordinary Windows application to
look for fonts in a specific directory, or load a font from
a specific file? The only things I've been able to find about
this using Google all relate to .NET.
--
Greg
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this? Is there
something I should do when creating a window to make sure it
appears on top?
Original Message
Subject:Re: [Pygui] Window Always Starts Behind Others
Date: Mon, 28 Mar 2011 10:17:10 -0400
From: Mark Melvin mark.mel...@gmail.com
To: Greg Ewing greg.ew
Roger Upole wrote:
The conversion in win32ui has changed since 212. At one time it
was negating the height that was passed in:
if (PyInt_Check (v))
pLF-lfHeight = -PyInt_AsLong(v);
Ah, that explains it all!
You can also extract the version embedded in the pyd's using
Tim Roberts wrote:
Are you running this on a different computer?
No, it's the same computer. I can run 2.x and 3.x versions
of the same test side by side, and the 2.x one has normal
sized text whereas the 3.x one has tiny text.
Oddly, it only seems to affect text drawn by the standard
win32
Tim Golden wrote:
Re: [python-win32] Possible trouble with pywin23-216 on python 3.2
Aha! There's your problem: you're trying to install pywin23.
Unless of course you're using one of those rare machines based
on Intel's little-known 23-bit architecture. (There was a typo
early on in the
I recently tried running PyGUI on Python 3 using
pywin32 build 216, and a couple of things are
not working quite the same way as they were with
Python 2 and build 213.
1) The default font used for control labels etc.
is slightly smaller.
2) When I calculate the width of a piece of text
using
Mark Hammond wrote:
What version of python and how many bits? I'm guessing you tried 3.2,
which means you must have used the 64bit version
No, it's 3.1, and 32 bit. It can't be 64, because the
machine I'm running it on can't handle that. (And it's
definitely not 23 bit either. :-)
The only
Octavian Rasnita wrote:
From: Greg Ewing greg.ew...@canterbury.ac.nz
No, if I go this way, I would probably stop maintaining
the current implementation.
Oh, in that case imho I think this is a very bad idea.
Can you elaborate on exactly what is bad about it, and
suggest an alternative
Tim Golden wrote:
Python.NET seems to sit in an awkward
place in the ecosystem. Its niche seems to be: where you want a small
bit of .NET technology (such as SQL-SMO in my case) but don't want to
migrate any win-specific Python code. (ie stuff relying on pywin32)
Or, as in my case, you are
From: Octavian Rasnita [mailto:orasn...@gmail.com]
If it will still be possible to use the standard Win32 GUI,
it is OK to be able to use Windows Forms as an adition.
No, if I go this way, I would probably stop maintaining
the current implementation. I don't want to have to
support two
Reckoner wrote:
Given the handle of a text field or button embedded in some window,
how can I find the parent window that contains the handle?
Use the win32gui.GetParent() function?
--
Greg
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pyt...@bdurham.com wrote:
I have a *resizable* Tkinter window with min and max sizes set. I want
to prevent users from attempting to maximize this window because the
window pops over to the upper left of the display - a behavior that my
users find very frustrating (and of little value).
If
Does the kiosk application need all 3 of those keys?
If not, you could remove one of them from the keyboard
and glue something over the hole.
--
Greg
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Roger Upole wrote:
The resource is actually in win32ui.pyd, rather than in Pythonwin
itself. I've just verified that this method works from plain python.exe.
That's great news! I thought I had already tried something
very much like what you suggested, but maybe I hadn't hit
upon the right
Roger Upole wrote:
You instantiate the MFC view object without a document, but in order
to actually create a window and do anything useful with it, it needs
a valid document.
Are you absolutely sure about that?
At the MFC level, I can't see anything to stop you from
instantiating a CView and
Bill Janssen wrote:
myprogram --title=That's the game! says Mike Hammer Brotsky --file=...
Since
cmd.exe also supports pipelines, I'd sort of expect it to do the right
thing on Windows, too.
Don't know about later versions, but in Python 2.5 the pipes
module is listed under Unix
Mark Hammond wrote:
as they were replies
to legitimate mailing-list messages, I was fooled into approving them.
Spammers are getting more obnoxiously devious all the time.
You have to wonder at the mentality of someone who goes to
such lengths to try to trick people into reading messages
that
Andrew MacIntyre wrote:
Is it possible to draw directly to the desktop? I vaguely recall reading
somewhere that that is how some splash screens are done to avoid the overhead
of a window...
Somehow I doubt that. I have a hard time imagining that
displaying a splash screen could be a serious
pyt...@bdurham.com wrote:
...'Choosing a
collection of common modules/packages for a general purpose reusable
PY2EXE runtime'. This post got zero feedback so our idea is either too
stupid or too obvious to warrant further conversation :)
I think the problem is that in the rare cases when you
Here's another possible solution. Each process tries to open a
socket connection to a server process. When the maximum number of
processes are connected, the server stops accepting connections.
The server also selects all of its open connections for reading.
When a process dies, the server will
pyt...@bdurham.com wrote:
I'm not entirely clear on why there are 2 battery classes and why I
would choose to use vs. the other, but I suspect the
Win32_PortableBattery class is for machines with advanced power supply
management capabilities.
Obviously it's for machines that have a *wireless*
Thomas Heller wrote:
I would guess that GetDeviceCaps() returns the information that you need.
Yep, this turns out to be right, although it's *very*
difficult to find this out if you start looking in
the area of the docs that talks about printing!
My margins are spot-on now. I'm happy.
Need
I'm wrestling with printing support for PyGUI on Windows.
I'd like to set up the coordinate system during printing
so that (0, 0) is at the corner of the paper, so that I
can arrange for the margins to have predictable sizes.
However, the device context I get from calling PrintDlg()
seems to be
Vernon Cole wrote:
In searching for documentation, remember a quirk in Microsoft
vocabulary... a printer is software, not hardware. The device on the
corner of your desk with the paper in it is not a printer, it is a
printing device.
Yes, I know. I'll be happy if I can somehow find out what
The PyCPrintDialog in pywin32 doesn't seem to have
any methods or attributes.
How are you supposed to get information out of it?
--
Greg
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Thomas Heller wrote:
Is the list available on gmane?
I have received a reply from gmane saying that a subscription
request has been sent and that the gmane group would be
created when the first message arrives.
I'm not a gmane user myself, so someone may want to take a
look over there and
Thomas Heller wrote:
Is the list available on gmane?
I have received a reply from gmane saying that a subscription
request has been sent and that the gmane group would be
created when the first message arrives.
I'm not a gmane user myself, so someone may want to take a
look over there and
I'm trying to create a PyRichEditCtrl with scroll bars.
I can get scroll bars to appear using the appropriate
style flags in CreateWindow, but they don't entirely
work. Clicking on the scrolling arrows causes the text
to scroll, but the position of the thumb doesn't get
updated to match.
Can
Thomas Heller wrote:
Is the list available on gmane?
Not yet, but I'll look into making it so.
--
Greg
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PyGUI 2.1.1 is available:
http://www.cosc.canterbury.ac.nz/greg.ewing/python_gui/
This is an emergency bugfix release to repair some major
breakage in the gtk version. Also corrects some other
problems.
What is PyGUI?
--
PyGUI is a cross-platform GUI toolkit designed to be
John Finlay wrote:
Start your own list for the community that is interested in your project.
That's not going to reach anyone who doesn't already
know about it.
It's probably a good idea for ongoing discussion,
though. Any suggestions on the best way of going
about it? I could start a Google
Vernon Cole wrote:
If it
produces code for a cross platform GUI API then the resulting
application will be cross platform. I would love to find one such that
actually works and produces good code.
Code produced by a GUI designer shouldn't be getting edited
by humans, so the quality of the code
Roger Upole wrote:
Greg Ewing wrote:
Randy Syring wrote:
win32ui.error: The object has been destroyed.
I looked at this a while ago, and have a good idea where the
problem is. I'll try to get a fix in before the next build.
If it's because of the screwy things I'm doing to
get a dummy
Sturla Molden wrote:
The only GUI API that doesn't suck is no API at all.
GUIs should be designed visually.
There's a lot more to a GUI API than just specifying
the layout.
--
Greg
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John Finlay wrote:
Greg,
Why do you post to mailing lists that are unrelated to your project? I
would appreciate it if in future you didn't post a message about your
project ot the PyGTK mailing list.
I posted the announcement to the pyobjc, pygtk and pywin32
lists because PyGUI uses all of
Randy Syring wrote:
I am still seeing the bug noted below in 2.1. Do you have plans to
tackle it?
win32ui.error: The object has been destroyed.
Reportedly it can be worked around by reverting to build
212 of pywin32. I haven't had a chance to investigate
what's causing it yet, sorry.
--
PyGUI 2.1 is available:
http://www.cosc.canterbury.ac.nz/greg.ewing/python_gui/
Highlights of this version:
* Win32:
Fixed bug preventing PyGUI apps from working under pythonw
Fixed incorrect mouse coordinates in ScrollableView
Added more standard cursors
* MacOSX:
I have a bizarre problem. The following program:
import win32ui
app = win32ui.GetApp()
app.Run()
works fine when run from a command window using
python.exe -- it happily sits there waiting for
events until I kill it with the task manager.
However, if I run it using pythonw.exe, the
GetApp()
Elias Fotinis wrote:
From: Antoine Martin
I had forgotten about the pipes (doh), I guess I should start the child
with stdin=stdout=stderr=None then?
That won't necessarily close the OS-level file descriptors,
though. If you want that, you need to do something like
for i in xrange(3):
Tim Roberts wrote:
Depending on your point of view, that's either a usage problem or a
design flaw in the os module.
The design of the os module does seem rather screwy in this
area. Since os.environ is a custom mapping type, I don't
know why it doesn't just pass all get and set operations on
Randy Syring wrote:
I am wondering if the problems with build 213 have ever been resolved on
Windows. Or was I mistaken that build 213 was the problem?
I don't know. I haven't heard any more about it from
anyone since then.
Has anyone else out there that's having this problem
successfully
Nicolas EISEN wrote:
the icon have the tranparence but the bmp
take this in black. In win32ui, there are not attribute to set the
background in white before write the bmp in DC ... an idea ?
Draw a white rectangle over the bmp before calling
DrawIcon?
--
Greg
PyGUI 2.0.5 is available:
http://www.cosc.canterbury.ac.nz/greg.ewing/python_gui/
More bug fixes for various platforms.
Still no idea what's causing the object has been destroyed
error on Windows XP, though. Does this happen for everyone?
Is there anyone who *has* got 12-scroll.py working
Randy Syring wrote:
Could you tell me briefly how this project differs from something like
wxPython?
It wraps platform-specific libraries directly, rather than
being a wrapper around another cross-platform library. This
means less bloat and less dependencies. Chances are you
already have the
PyGUI 2.0.4 is available:
http://www.cosc.canterbury.ac.nz/greg.ewing/python_gui/
Fixes a few more bugs and hopefully improves things
on Windows, although I can't be sure it will fix all
the Windows problems people are having, because I
haven't been able to reproduce some of them.
What is
Christian K. wrote:
I'm afraid, that error is stil there:
File c:\pythonxy\python\Lib\site-packages\GUI\Win32\ScrollableViews.py, line
31, in __init__
GScrollableView.__init__(self, _win = win)
win32ui.error: The object has been destroyed.
That's a bit of a problem, since it works
Christian K. wrote:
TypeError: 'pitch_and_family' is an invalid keyword argument for this
function
Looking at the source of pywin32, I can see why this
happens -- it really is expecting 'pitch and family'
with spaces (and it's abusing ParseTupleAndKeywords
to unpack a dict, which is why it's
PyGUI 2.0.2 is available:
http://www.cosc.canterbury.ac.nz/greg.ewing/python_gui/
Fixes problem on Windows causing This file should not
be imported error.
What is PyGUI?
--
PyGUI is a cross-platform GUI toolkit designed to be lightweight
and have a highly Pythonic API.
--
PyGUI 2.0.1 is available:
http://www.cosc.canterbury.ac.nz/greg.ewing/python_gui/
Fixes some problems in setup.py affecting installation
on Linux and Windows.
What is PyGUI?
--
PyGUI is a cross-platform GUI toolkit designed to be lightweight
and have a highly Pythonic API.
--
PyGUI 2.0 is available:
http://www.cosc.canterbury.ac.nz/greg.ewing/python_gui/
Highlights of this release:
* Native Windows implementation, based on pywin32 and ctypes.
* Full set of Postscript-style path construction operators
available on all platforms.
* Mouse and keyboard events can
france...@promotux.it wrote:
error: package directory 'Gtk' does not exist
Smeg, there's a bug in the installer. I'll release
a fix soon. In the meantime, try replacing the
following line in setup.py:
packages.append(Gtk)
with
packages.append(GUI.Gtk)
I've also noticed another problem
I'm trying to create an OpenGL context for rendering
to an offscreen bitmap.
The attached program gets as far as trying to call
wglCreateContext, then fails with
WindowsError: [Errno 8] Not enough storage is available to
process this command.
Can anyone see what's going wrong here?
I'm trying to use GDI+ (via ctypes) to draw text.
It works for some fonts but messes up with others.
Using Times, for example, it seems to be using the
glyphs for one character earlier in the code sequence,
so that Times comes out as Shldr -- except that it
uses the widths of the original
Tim Roberts wrote:
Sadly, I see Times Italic 48 in black-on-yellow.
Do you really have a font called Times?
I'm not sure, but I can use the name Times with
plain GDI and it works fine, so it seems to be able
to find something equivalent.
But I'll try using the exact name and see if it
works
Turns out I *sort* of have a font called Times... I've got
Times Bold, Times Italic and Times Bold Italic, but
no plain Times!
Times New Roman works fine, though, and it seems that the
same is true of all the other fonts for which there is a
full set of variations.
So it looks like I'll be
Mark Hammond wrote:
Works for me. In sliderdemo.py, directly after the creation of the
control I added:
self.HookMessage(self.OnSliderMove, win32con.WM_HSCROLL)
Okay, I've modified that demo similarly and it works
for me too. I can investigate further from there,
thanks.
--
Greg
I'm having trouble getting notification messages from
a Slider control.
According to MS, a Slider is supposed to send WM_HSCROLL
messages to its parent window when the user changes it,
but this isn't happening.
I can get WM_HSCROLL messages from a normal scroll bar,
but either the Slider isn't
Is there any way of creating a ScrollView without needing
a Document?
I just want a scrollable user-drawable area, but CreateView
insists that I supply a Document. What's more, the only
way to create a Document seems to be to use a DocTemplate,
and the only way to get one of those is to use a
Mark Hammond wrote:
No not only can I no longer answer your question, I'm quite confident I
never could :(
Alternatively, is there a way of getting a valid DocTemplate
without having to put a resource in the executable? Some
kind of in-memory resource creation or something?
--
Greg
Well, I think I've found a workaround. The following
hack seems to create something looking enough like
a PyCDocument to keep it happy while creating a
PyCView:
dummy = win32ui.CreateRichEditView().GetDocument()
The result of this appears to be a PyCDocument that's
wrapping a null pointer.
The following program creates a FrameWnd with an
Edit control in it.
If I select some text in the control, then switch
to another window and back again, the Edit control
has lost the keyboard focus.
Normal Windows applications don't behave that way.
What do I have to do to get my controls to
I'm having trouble understanding how PreTranslateMessage
is supposed to work.
According to M$:
Return value: Nonzero if the message was translated
and should not be dispatched; 0 if the message was
not translated and should be dispatched.
and according to the pywin32 docs:
The result
Mark Hammond wrote:
Hrm - m_pMenu (and m_pSubMenu) is *supposed* to return a PyCMenu object
- what are you seeing?
They're returning a PyCMenu, but not the object that
I have attached to the PyCMenu.
This seems to happen automatically in some other
places, e.g. ui.GetFocus(). If m_pMenu
Mark Hammond wrote:
Apparently not from Python. It would be easy to add,
If you do happen to add this, another thing you might
want to investigate is why PyCCmdUI isn't automatically
doing this when you read the m_pMenu property, as seems
to happen in most other places if you call a method
Mike Driscoll wrote:
I'm probably being naive, but why don't you just use one of Python
excellent GUI toolkits?
I'm implementing my own cross-platform toolkit, because
I don't like any of the existing ones. See
http://www.cosc.canterbury.ac.nz/greg.ewing/python_gui/
--
Greg
Vernon Cole wrote:
So, Greg, can we anticipate a python_gui flavor for Windows in native mode?
Yes, it looks like there's a reasonable chance of that
happening fairly soon.
There are actually two possible ways it could go. I
have a partial implementation contributed by one of
my users based
Has anyone successfully used the PyCWnd.OnCtlColor
virtual function to change the appearance of a
control?
The program below tries to use it to set the colour
of the text in a PyCButton. My OnCtlColor method gets
called, but it doesn't have any effect on the appearance
of the button.
Also, if I
Roger Upole wrote:
OnCtlColor is expected to return a GDI handle rather than a full
MFC object.
Ah, okay. It does say so, now that I come to look at
the docs carefully enough. It works fine now.
Thanks,
Greg
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Well, it *almost* works now... it's okay for all the
button styles except BS_PUSHBUTTON.
My OnCtlColor is still getting called, but the
pushbutton seems to ignore the results. All the other
button styles are okay.
Am I still doing something wrong, or is this a known
limitation of pushbuttons?
Tim Roberts wrote:
It's kind of loony for an API to use a
64-bit integer as an error number, but that's what they're doing.
This is Windows, remember. There are large numbers
of things that can go wrong.
--
Greg
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Tim Roberts wrote:
Dahlstrom, Roger wrote:
My opinion is that determining file type by extension (arbitrary at that)
is a bad thing to begin with.
This is veering a bit off-topic for this mailing list, but I'd be
curious to hear what alternatives you would suggest.
The way classic MacOS
Thomas Heller wrote:
Does Python need a native, pure Python, Windows GUI toolkit, one that uses
win32 api calls directly to use native windows controls?
I believe so. One of the long-term goals for PyGUI is to
give it a native Windows backend. I share your dislike of
layers on layers.
Are
I'm creating a COM server in Python that will have one
main class, with methods that create and return instances
of other classes.
I've found that I need to use win32com.server.util.wrap
and unwrap on these objects when they pass over a COM
connection. This doesn't seem very convenient,
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