[python-win32] Help on using win32api.SendMessage to send keystrokes
Hi, I am trying to use win32gui.SendMessage API (or PostMessage), and cannot figure out why it is not working. I would appreciate any help! Simple test script I am using is included below. I am using pywin32-203 and python 2.4, on winxp pro sp2. I am a total newbie to python, so if this is a really dumb question, please do not be surprised. :) I thank you all in advance for any help and guidance you can provide. Daniel --- Script to try to write something down in notepad import win32api import win32gui import win32con import time # get the window handle of the blank, minimized notepad window hwnd = win32gui.FindWindowEx(0, 0, 0, Untitled - Notepad) # print it just for kicks print hwnd win32gui.ShowWindow(hwnd, win32con.SW_SHOWNORMAL) #this restores the proper window, so we know we have correct handle #just to give it a little pause time.sleep(2) print trying to post message #try to send it a return key win32api.SendMessage(hwnd, win32con.WM_KEYDOWN, win32con.VK_RETURN, 0) win32api.SendMessage(hwnd, win32con.WM_KEYUP, win32con.VK_RETURN, 0) #the above generates absolutely no effect on the notepad window. #same effect no matter what vk code i use (e.g. 65 for A, VK_SPACE for space, etc) end of script ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
[python-win32] Re: Help on using win32api.SendMessage to send keystrokes
Well... i figured it out - turns out sending the keystrokes to the top window of notepad didnt work, but sending them to the Edit child window of notepad did the trick. But this brings me to another question, although of a less urgent manner. i had to send WM_CHAR messages, rather than WM_KEYDOWN/KEYUP in order to get it to work. I have nothing against WM_CHAR, as long as everything works, but i am just curious why i was not able to achieve the same effect with the WM_KEYDOWN/KEYUP pair? any takers? Thanks, Daniel On Wed, 30 Mar 2005 10:28:36 -0500, Daniel F [EMAIL PROTECTED] wrote: Hi, I am trying to use win32gui.SendMessage API (or PostMessage), and cannot figure out why it is not working. I would appreciate any help! Simple test script I am using is included below. I am using pywin32-203 and python 2.4, on winxp pro sp2. I am a total newbie to python, so if this is a really dumb question, please do not be surprised. :) I thank you all in advance for any help and guidance you can provide. Daniel --- Script to try to write something down in notepad import win32api import win32gui import win32con import time # get the window handle of the blank, minimized notepad window hwnd = win32gui.FindWindowEx(0, 0, 0, Untitled - Notepad) # print it just for kicks print hwnd win32gui.ShowWindow(hwnd, win32con.SW_SHOWNORMAL) #this restores the proper window, so we know we have correct handle #just to give it a little pause time.sleep(2) print trying to post message #try to send it a return key win32api.SendMessage(hwnd, win32con.WM_KEYDOWN, win32con.VK_RETURN, 0) win32api.SendMessage(hwnd, win32con.WM_KEYUP, win32con.VK_RETURN, 0) #the above generates absolutely no effect on the notepad window. #same effect no matter what vk code i use (e.g. 65 for A, VK_SPACE for space, etc) end of script ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Re: Help on using win32api.SendMessage to send keystrokes
Thank you all for your suggestions! Using PostMessage with WM_KEYDOWN/KEYUP, and creating the lparam bitfield like that, does the trick quite well. Really appreciate your help! :) On Apr 1, 2005 12:59 PM, Tim Roberts [EMAIL PROTECTED] wrote: On Thu, 31 Mar 2005 21:40:02 -0500, Daniel F [EMAIL PROTECTED] wrote: Well, i do need a general solution, I was just using notepad as a test case... So it's definitely good for me to know about this - thanks! But i wonder, isnt there some kind of an upstream event, that could be generated and then would automatically generate and propagate all of the keydown, char, and keyup events, so i do not have to worry about sending all three? You might investigate MapVirtualKey, keybd_event, and SendInput. I have no clue whether these are exposed in the Python Win32 extensions. Overall, I would guess the three-message parlay is the lowest-impact method. also, as to roel's earlier post... could I please have some help on how to generate a bit field in python, in order to send a well-formed lParam to SendMessage, and thus create a well-formed WM_KEYUP/KEYDOWN event? Python supports C expressions; you just build it by hand: bits = 0x800 | 0x0003 | vkKey Or, if you prefer the bit numbers explicitly: bits = (2 30) | (3 16) | vkKey -- - Tim Roberts, [EMAIL PROTECTED] 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] Re: Help on using win32api.SendMessage to send keystrokes
Wait, spoke a bit too soon. I noticed that you (Tim) apparently missed a zero in your first method of building the bits (8 with 6 zeros instead of 7), which generates only a 28bit number, not 32bits. (which i blindly copy pasted at first...). when i try to make an actual 32bit value, and then send it to the PostMessage function, i get the following exception: win32api.PostMessage(self.subHwnd, win32con.WM_KEYDOWN, virtualKeyCode, keyDownBits) OverflowError: long int too large to convert to int as i understand it, then... PostMessage expects exactly 32bits... and my guess is that since python has no unsigned ints, a 32bit value needs more than 32bits, so python makes it a long, and then postmessage complains about longs because it expects an int-sized value. Would that be a bug in python's implementation of PostMessage, or am i missing something? btw, postmessage(keydown) works just as well with a 31-bit value... so i guess i have no problem with this, just asking out of curiosity. Thanks, Daniel On Apr 1, 2005 4:19 PM, Daniel F [EMAIL PROTECTED] wrote: Thank you all for your suggestions! Using PostMessage with WM_KEYDOWN/KEYUP, and creating the lparam bitfield like that, does the trick quite well. Really appreciate your help! :) On Apr 1, 2005 12:59 PM, Tim Roberts [EMAIL PROTECTED] wrote: On Thu, 31 Mar 2005 21:40:02 -0500, Daniel F [EMAIL PROTECTED] wrote: Well, i do need a general solution, I was just using notepad as a test case... So it's definitely good for me to know about this - thanks! But i wonder, isnt there some kind of an upstream event, that could be generated and then would automatically generate and propagate all of the keydown, char, and keyup events, so i do not have to worry about sending all three? You might investigate MapVirtualKey, keybd_event, and SendInput. I have no clue whether these are exposed in the Python Win32 extensions. Overall, I would guess the three-message parlay is the lowest-impact method. also, as to roel's earlier post... could I please have some help on how to generate a bit field in python, in order to send a well-formed lParam to SendMessage, and thus create a well-formed WM_KEYUP/KEYDOWN event? Python supports C expressions; you just build it by hand: bits = 0x800 | 0x0003 | vkKey Or, if you prefer the bit numbers explicitly: bits = (2 30) | (3 16) | vkKey -- - Tim Roberts, [EMAIL PROTECTED] 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] character to integer
function ord() would get the int value of the char. and in case you
want to convert back after playing with the number, function chr()
does the trick
ord('a')
97
chr(97)
'a'
chr(ord('a') + 3)
'd'
On Apr 4, 2005 9:16 AM, Chi Tai [EMAIL PROTECTED] wrote:
Hello,
how can i make an integer value from a character value like this.
string = Hallo
integerval = string[0]
i = integerval + 2 #this does not work because integerval is not an
integer value
i want the in integervalue the intvalue of the hexvalue 0x48 ( the
character-value of H)
Is there a simple possibility ?
Chi-Tai
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Re: [python-win32] Help on using win32api.SendMessage to send keystrokes
I don't know the answer to this. Games tend to be straight-to-the-metal applications: they don't truck with a lot of filtering and intermediate DLLs. You might be able to use the debug APIs to watch for the loading of the DirectInput DLL and insert some manual hooks, but that's a pretty high level of guruness. Google for api dll injection. wow, that opened up a wealth of info. thanks. although i hope to skate by without using it... ;) There are some HID filter drivers in the DDK supplied by Microsoft. As a general rule, it is rare to find a publicly-available third-party kernel driver. There are several reasons for that. Most drivers are written for a specific device, and are not useful in the general case. Device-specific drivers often include information that the manufacturer considers to be proprietary. The support burden for a kernel driver is much greater than a user-mode app. And, the investment in creating and debugging a driver is so high, that most manufacturers don't want to help the competition by providing the labor for free. interesting... thanks for the info. ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Help on using win32api.SendMessage to send keystrokes
There is module for injection of *python* code in win32 apps. http://security.opennet.ru/base/patches/1080837482_191.txt.html this looks interesting, i wanted to give it a look, but it seems that rootkit.com (where the actual package is hosted) is not resolvable anymore. you dont happen to have the zips handy, do you? ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] HookMessage failure?
Hey Mark, the correct mesage to hook is win32con.WM_LBUTTONDOWN try it with this one, and see if that works. -d On 7 Apr 2005 02:15:41 -, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hey, I'm currently trying to detect all clicks to a particular windows application, using win32gui and win32ui. Right now I'm using EnumWindows() to find the hwnd I want via window title, and then CreateWindowFromHandle(hwnd) to get a PyCWnd object that represents the window. I then attempt to use HookMessage() to set up a callback for win32con.LBUTTON_DOWN. However, my callback never gets called. I know I'm getting the right PyCWnd object, because I can use it to set/get the window title, but for some reason the callback function never gets called. Any ideas? Thanks, -Mark ___ 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] Intro and Windows Questions
Hi Christophe, I am a newbie to python myself... but i have settled for now on just using the scite editor (http://www.scintilla.org/SciTE.html) to code python. like you, i was not impressed with eclipse+pydev, or pythonwin (and havent even tried all those other ones you mentioned). scite doesnt have code completion, but it does have automatic syntax format, block collapse capability, open multiple files in one window with tabs, and you can run your program from right inside it through a shortcut (and probably a lot of other useful stuff that i havent gotten to use yet). i do have to note that i have not done any gui stuff in python yet, so maybe i will have to start looking for something else when i do. maybe not exactly what you were looking for - just sharing my [admittedly narrow] experience. please feel free to let me know if you find a really smashing ide, as i would not be averse to using one, either. good luck, -d On Apr 6, 2005 2:52 PM, Christophe Leske [EMAIL PROTECTED] wrote: Hello there, my name is Christophe Leske and i am a developer based in Düsseldorf, germany. I have a multimedia programming background, but am slowly crawling up to RAD development using Python and am therefore looking for a windows IDE and GUI Designer. Now: Ideally, I'd like to have an IDE with code completion, yet all the IDEs i have seen so far (WingIDE, Komodo, Ecliipse (either as trustudio or the Pydev plugin) don't really cut it for me. Same goes for the Windows GUI Designers (Boa doesn't even work for me, even after compilation - hey, i am a beginner...) So far, i settled for PythonWin, yet am still looking for better alternatives. Any suggestions? I also know about specialized editors like Crimson or ZeusEdit, but i'd rather go with an IDE (if possible). Python seems like a mature development tool for me, which is why i am wondering that there seems to be no really good IDE that fits me (or am just weird? probably...) My rubberboat is full of eels, Christophe Leske tel. +49-(0)211 230 99 70 .:. fürstenwall 157 .:. ::: 40215 düsseldorf ::: ::: germany ::: http://www.multimedial.de ___ 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] Re: Help on using win32api.SendMessage to send keystrokes
Unicode Implemented as ANSI and Unicode versions. Which means: Call MapVirtualKeyA for ansi strings, MapVirutalKeyW for unicode strings. aha! that works. :) never would have guessed just by looking at that unicode line what it actually means... Daniel, off to learn how to inject dll Hehe. Good luck. thanks, seems like im gonna need it... -d ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Help on using win32api.SendMessage to send keystrokes
I have this: -rw--- 1 niki users 1459352 Apr 1 2004 4-04-01/adder-0.3.3-src.zip -rw--- 1 niki users 137800 Apr 1 2004 4-04-01/adder-0.3.3-win32.zip -rw--- 1 niki users 69801 Apr 1 2004 4-04-01/adder-manual.zip Do you want any of them? By e-mail? yes, please! with my nifty 2g of space from gmail, should be no problem getting all three of those. :) thank you, daniel ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
Re: [python-win32] Python und Hardwaremanagement
Many thanks so far for your quick response. Basically what I mean with manage your hardware is writing a program that can switch on/off the monitor and keyboard as well as setting/change the resolution and frequency. Its just for training. to play with the monitor settings, check out the following api functions in the msdn api reference: changedisplaysettings enumdisplaysettings these are wrapped by pywin32, and will allow you to change resolution, frequency, etc. (dont think you can turn monitor off through these, but i may be wrong, i havent used these myself...) as to the keyboard... i dont think you can turn off the keyboard, but if you want to disable all keyboard input, you can just hook all messages (use setwindowhookex api, or the pyHook module, which wraps setwindowhookex and makes things more convenient), and block them. -d ___ Python-win32 mailing list Python-win32@python.org http://mail.python.org/mailman/listinfo/python-win32
