How to close or send button clicks to window or child window

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Walkerboh

Joined: 08 Jul 2010
Posts: 17

Walkerboh 16 Jul 2011, 14:22

How do I close a window or click a button on a window after enumerating it's handle? For example I have a window handle and the windows name
328272
winHandles.txt - Notepad

Shouldn't the following code close notepad?

Code:

format PE GUI 4.0
include 'win32ax.inc'

section '.text' code readable executable

  start:
        invoke  PostMessage,328272,WM_CLOSE,0,0
        invoke  ExitProcess, 0

section '.data' data readable writeable



section '.idata' import data readable writeable

  library kernel32,'KERNEL32.DLL',msvcrt,'msvcrt.dll',user32,'USER32.DLL'
  include 'api\kernel32.inc'
  include 'api\user32.inc'
  import  msvcrt,itoa,'_itoa',getchar,'getchar'

[Edit by Loco: Added code tags]

16 Jul 2011, 14:22

LocoDelAssembly
Your code has a bug

Joined: 06 May 2005
Posts: 4624
Location: Argentina

LocoDelAssembly 16 Jul 2011, 17:22

WM_CLOSE works for me:

Code:

include 'win32axp.inc'

TITLE_TO_FIND equ 'Sin título - Bloc de notas' ; This is the Spanish title when you open notepad without opening any text file, change as necessary.

proc start

      invoke  PostMessage, <invoke FindWindow, NULL, TITLE_TO_FIND>, WM_CLOSE, 0, 0
      invoke  ExitProcess, 0
endp


.end start

If it still doesn't work for you try using WM_DESTROY which also worked for me.

I'm using WinXP 32-bit BTW.

16 Jul 2011, 17:22

Walkerboh

Joined: 08 Jul 2010
Posts: 17

Walkerboh 16 Jul 2011, 21:39

Thanks LocoDelAssembly, invoking FindWindow from the parameter field of PostMessage worked for me. I did something wrong when I used ITOA to convert the window handle to a string and then manually input that number as the handle parameter for my PostMessage.

16 Jul 2011, 21:39

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