Re: [python-win32] optimizing code to read serial port
At 08:14 AM 2/15/2014, you wrote: Vernon Your suggestion is interesting but not practical for our needs. Have you profiled pySerial? http://pyserial.sourceforge.net/examples.html I use it in my LX200 serial telescope package http://rjs.org/Python/LX200/LXSerial.py/LXSerial.html http://rjs.org/Python/LX200.zip - Ray ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Win32 GUI for beginners.
At 10:10 AM 1/18/2014, Christophe Dezé wrote: You can try boa constructor. It's simple.I've begun with it. PS it's a bit obsolete,but i works as well The one thing Boa hasn't been updated for is the AGI widgets, which would be nice. ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Win32 GUI for beginners.
I was in a similar place about 12 years ago, and settled on wx http://wiki.wxpython.org/How%20to%20Learn%20wxPython and BoaConstructor http://sourceforge.net/projects/boa-constructor/, which has served well since. A good book I'd bought is now online http://eduunix.ccut.edu.cn/index2/pdf/Manning.Publications.wxPython.in.Action.Mar.2006.pdf Qt also has a nice widget set and examples etc, but is not LGPL - a factor for me. - Ray On Dec 31, 2013 3:11 AM, Sean Murphy mailto:mhysnq1...@icloud.commhysnq1...@icloud.com wrote: Hi all. I am very very new to Python. I have read the book on programming for Windows with Python that was released in 2000. The book is very good but doesn't give me the basic information I am seeking. Since I am a beginner programmer. I want to create a GUI windows app with Python. The program has to use default Windows 32 or 64 bit objects. I wish to get the following components: Menu bar Listview Treeview Richedit or a multiline edit field A couple of buttons. All objects must be able to be access by the keyboard. either via tab stops (using the tab or shift tab key) and short cut keys. I have a 70 mb text file that is marked up using YML. I wish to show each section in the edit field. The list view shows the name of each item. The tree view will contain categories. I have seen PYGUI which I am not sure if it is easier then using the MSF approach which the book above mentions. So I really need assistance to progress this home bobbie project to expand my programming skills. Any wikis, documentations, good code examples with explanations, etc I would love to get my hands on. I am reading about 3 or 4 books on Python to get up to speed. But only found one book on Win32 programming. I do not want to have to turn around and learn win32 or MFC. If I have to then please point me towards a good book or resource. Regards Sean ___ python-win32 mailing list python-win32@python.org https://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Recurring DLL error with py2exe
At 06:02 AM 8/25/2011, Jacob Kruger wrote: The last 2 lines rendered in that window are then the following: *** finding dlls needed *** error: MSVCP90.dll: No such file or directory That specific DLL gets copied quite easily into the relevant subfolder of the dist folder when I run a similar command for my much larger, but, I suppose, simpler, mapData app, since that one doesn't try to import libraries/modules like piaudiere or wxPython as such. Any thoughts on what could really be happening here, or should I try sort out reinstalling windows7 or something...? I always explicitly bundle the *90 dlls with the exe using includes [], or the user needs the redistributable. Even if Win7 ships with *90 dlls you might still need explicit copies. Re-view the tutorial for more setup hints http://www.py2exe.org/index.cgi/Tutorial#Step52httphttp://www.py2exe.org/index.cgi/Tutorial#Step52://www.py2exe.org/index.cgi/Tutorial#Step52 I'm still wrangling with dynamic import errors... ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] py2.7 and multiple DDE servers on Win32, possible?
Ahh, this http://www.codeproject.com/KB/MFC/MFCinVisualStudioExpress.aspx might help. I'll work through it later... I do have VS6, but I'm assuming that I really need 2008 (?). Thanks, Ray At 10:13 PM 6/13/2011, Roger Upole wrote: Compiling with VC 2008 Express is going to be a problem. The free compiler doesn't seem to support using the atl/mfc headers and libraries. Roger ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] py2.7 and multiple DDE servers on Win32, possible?
Nice, I'll give it a shot, providing they compile with free VS2008 Express (?) The old page is a tad out of date http://starship.python.net/crew/mhammond/win32/BuildingExtensions.html but it seems this might help http://mattptr.net/2010/07/28/building-python-extensions-in-a-modern-windows-environment/ I'll also check with Enthought (I have their full MKL edition). Ray At 03:47 AM 6/11/2011, Roger Upole wrote: If you can build the dde module yourself, reenabling multiple servers for 32-bit is just a matter of uncommenting // #define _CALLHACK_ in stddde.cpp. Roger ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] py2.7 and multiple DDE servers on Win32, possible?
Hello I know that the default behavior since 2.? has been only one DDE server allowed. Is it possible to back-hack this restriction? I asked similarly a while back http://mail.python.org/pipermail/python-win32/2010-October/010774.html and Roger replied: It was done through some low-level hacks to create new C functions on the fly, which set off DEP and crashed in a 64-bit build. http://python.net/crew/pirx/win32/dde.zip (http://www.koders.com/cpp/fid7F744C525820DA799D8AB0484F2F97152DF30852.aspx?s=setwindowshookex) is apparently an older implementation and attempting to import the included dde.pyd fails with type 'exceptions.ImportError' : DLL load failed: The specified module could not be found. whether placed in Python27\DLLs or Python27\Lib\site-packages\pythonwin. I assume that it would need to be compiled with MVC2008/Py2.7 to hope to work... I have a legacy 6 year old DDE client app that I would really like to support with a new data server... Ray ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Convert RGBA to BGRA using standard library?
Something like? a=numpy.array([1,2,3,4,5,6,7,8]) b=a.reshape(2,4).copy() b array([[1, 2, 3, 4], [5, 6, 7, 8]]) b[:,0]=a.reshape(2,4)[:,2].copy() b[:,2]=a.reshape(2,4)[:,0].copy() b array([[3, 2, 1, 4], [7, 6, 5, 8]]) See also http://www.mail-archive.com/numpy-discussion@scipy.org/msg18651.html Ray At 11:53 AM 5/31/2011, Tim Roberts wrote: Greg Ewing wrote: 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, whereas most other platforms deal with RGBA. I don't want to require the user to supply the data in different formats on different platforms, so PyGUI needs to be able to convert where necessary. I know the conversion can be done easily using something like PIL or numpy, but I'm after a solution that doesn't depend on any third-party libraries. Nothing other than brute force. bout = [] for i in range(0,len(bin),4): bout.extend( [bin[i+2], bin[i+1], bin[i], bin[i+3]) ) It ain't gonna be quick. If it were me, I'd rather ship PIL. -- Tim Roberts, t...@probo.com Providenza Boekelheide, Inc. ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32 ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] First post to list, etc.
At 06:16 AM 5/17/2011, Jacob Kruger wrote: Im now (finally) starting to actually try get started with python, etc., and aside from being partly interested in the symbian/phone implementation thereof, I am initially just starting off looking into python apps running on windows systems, but aside from an actually installed interpreter, etc., am also just wondering about things like the sort of wrapper possibilities, where you can include some sort of compiled python code in an .exe file etc. http://www.py2exe.org/index.cgi/Tutorial Almost all my code gets compiled you can also include C in your code, or Win32 library calls via ctypes That should then be able to (hopefully) run on most windows machines as a sort of standalone app, but if Im totally confused about possibilities, then would also like to know for sure, and also wondering if this might be related to being limited to only certain versions of python, etc.? there is not a py2exe for Python3 yet, but you can still freeze apps and distribute only compiled libraries http://cx-freeze.sourceforge.net/ Currently have both 2.6 and 3.2 installed on this machine windows7 32 bit, but also on my other primary machine windows7 64 bit, but I do also have another windows XP machine that might also want to test/try these things out on. I stick with 2.6/2.7 for now, as many of the nicest libraries are not ported to 3 yet Alternatively, wheres the best place to start looking for things like this? http://pypi.python.org/pypi http://wxpython.org/ ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] access violation debugging advice?
I'm accessing a 3rd party ctypes cDLL function and getting WindowsError access violation at 0x at seemingly random time intervals; what tips does the group have for debugging? The DLL author is an MS C++ guy and not Python literate. The DLL appears to run without error with his MSVC apps. It almost seems CPU-load dependent, but I could be imagining that... It is for data acquisition, and I seem to be forced to restart my app to get around the trapped error and restart (although I haven't tried un-setting the ctypes objects). - Ray ___ python-win32 mailing list python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] How to take a snapshot of a specific control?
Check this post: http://mail.python.org/pipermail/python-win32/2003-June/001129.html win32gui.EnumWindows(_MyCallback, windows) for i in windows: if win32gui.IsWindowVisible(i): if win32gui.IsWindowVisible: windowsText.append(i) winDict[numWindows] = i numWindows +=1 is what you want. I'm trying to do a fast desktop capture myself, and having DC/pyDC confusion. Ray At 08:15 AM 12/5/2006, Michiel Vleugel wrote: Hello list, I'm trying to come up with a script that will take a screenshot of internet exploder, (for IE automated unittest script for web development) but having trouble drilling fown to the dc of the control. It looks like I the control that is needed is called Internet Explorer_Server inside the IE application. How can I get the dc of this control? I tried getting it by using GetDC() on the control, but it doesnt seem to work (cause that only works on windows, not on controls). Any help is greatly appreciated! Michael Vleugel ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32 ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] screen capture and win32gui.GetDesktopWindow()
At 05:02 PM 12/6/2006, Tim Roberts wrote: Ray Schumacher wrote: I've been mulling screen capture code. I tried PIL's ImageGrab().grab() (with pymedia) but find PIL's method to be pretty slow, ~4grabs per second max with no other processes. pymedia is pretty quick once I hand it the data. How large is your screen? A 1600x1200 true-color desktop is 8 megabytes worth of pixels, and it can take tens of milliseconds just to copy it over the PCI bus to main memory. 1024x768, and I want to immediately resize to 640x480 (or smaller) before handing off to pymedia for MPEG input. I have a PIL version that does ~3.2fps, and, the PIL method does not capture the mouse... Gabriel's suggestion of watching events for copying sub-areas is good... I can track the mouse using pyHook, I think. I putsed around with win32gui desktop = win32gui.GetDesktopWindow() dt_l, dt_t, dt_r, dt_b = win32gui.GetWindowRect(desktop) but couldn't see how to get at the data via the handle. You can use BitBlt to copy it to a DIB, but it's not going to be very convenient to work with. I'll try it; all I want to do is downsample and send it off to pymedia as a string: vcodec.VFrame( PIX_FMT_RGB24, (640, 480), (s, None, None)) I had made a version of http://pymedia.org/tut/src/make_video.py.html with PIL ImageGrab().grab() as the string source, profiled, and saw that it was the PIL method as 80+% of the time. Thanks all, Ray ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] sleep() for less than .001s?
At 02:59 AM 8/4/2006, Gabriel Genellina wrote: I'm not sure if this really works, but you could try: - Raise your thread/process's priority using SetPriorityClass or SetThreadPriority. This is to minimize the (unpredictable) delay of sleep() I do launch the module with CreateProcess with RealTimePriority - it does stabilize things a bit - Keep your qPC loop, but insert a sleep(0) call, this would free the CPU. Does 0 have a special meaning vs. .001 for example? I'll give it a try. The desired total delay is about .0056s, so I'd like to sleep() for ~.004 and then wake up and catch the exact tick. For some reason, sleep(.001) actually adds up to a good bit more, like .004, and sleep(.0001) collapses to ~statement execution time, like 10us! That's why if I use .0001 the CPU is still 100% loaded; with .001 it drops to near zero, but, the timing is way off. I'l do an example code to demonstrate, and see if others get the same responses. I'm wondering if sleep() uses the 8254 or RTC timers instead of the TSC counter or APIC timer(?) I did see an interesting point about RTAI as well Also, one should note that nanosleep() is a busy wait in the kernel when the request to sleep is for an amount of two milliseconds or less. Therefore, a busy wait would not simulate interrupt response time as well as a true sleep. , so LINUX does not have a true short sleep() either... http://www.rtems.com/ml/rtems-users/2004/march/msg00067.html has a good discussion as well that I need to look into. Thanks, Ray ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] pyHook on Win98; no events
To debug pyKeyLogger, I wrote this with pyHook (and compiled with py2exe on Win2K), which prints the ascii codes as expected on Win2K: import pyHook import time import pythoncom def OnKeyboardEvent(event): print event.Ascii def main(): hm = pyHook.HookManager() hm.KeyDown = OnKeyboardEvent hm.HookKeyboard() while True: pythoncom.PumpMessages() if __name__ == '__main__': main() It silently does nothing on Win98... What is needed? py2exe on 98? I did test it on a fresh install of 98... I also just thought about trying loading ANSI.SYS at boot, but I can't test until tomorrow. Thanks, Ray ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] closing processes
I use pv command line version on 9x ME Windows, and call it with os.system etc. http://www.pcworld.com/downloads/file_description/0,fid,6102,00.asp also http://www.beyondlogic.org/solutions/processutil/processutil.htm For newer OSs, use WMI, as in http://mail.python.org/pipermail/python-win32/2003-October/001329.html Ray Schumacher At 08:37 AM 8/12/2005, Jim Vickroy wrote: ryan pinto wrote: hi - need some help, Looking for some way to close processes which are open. Is there any way that a process can be detected if its running and then closed. Ryan __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32 Have you looked at section 6.1.5 Process Management in the Python Library Reference or, alternately, the win32process module? HTH -- jv ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32 ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] list/kill processes on Win9x and NT+...
Ah, now I just found after searching for CreateToolhelp32Snapshot http://sourceforge.net/mailarchive/message.php?msg_id=8291643 Thanks Gabriel, Ray At 07:46 PM 7/12/2005, Gabriel Genellina wrote: At Tuesday 12/7/2005 14:04, Ray Schumacher wrote: I had looked over the methods to list/kill processes on Win32, and could not (yet) find a pure Python way to do it that works on 9x, since I could not get win32pdhutil to work on 98. So, I combined subprocess.py and pv.exe from http://www.xmlsp.com/pview/PrcView.zip and wrote a quick app to kill unauthorized process and compiled with py2exe. Does anyone have a way to list/kill without the external process that works in all 9x and XP? PDH will work for NT, 2000 and up. For Win95/98 you can enumerate processes using ToolHelp32: http://support.microsoft.com/kb/q175030/ Gabriel Genellina Softlab SRL ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
