little help with a simple program

patito · #1 07-Sep-2005, 23:22

hi,

im looking for a little help sending keystrokes to an especific window, so far my code is:

CPP / C++ / C Code:

#include <windows.h>

   int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) {

char message[100];
int handle;

handle=FindWindow("window title", NULL);
		PostMessage(handle, WM_QUIT, 0, 0); 

}

this code works very good to close a lot of running programs that i have tried,but now i found one that is not closing after using that,it just gives me an error and locks the computer.

that program closes very well using ctrl+alt+del,so im looking for some code example to be able to send that key combination to the program i want to close.

any help will be preciated,thanks in advance.

kobi_hikri · #2 08-Sep-2005, 08:15

Quote:

Originally Posted by patito

im looking for a little help sending keystrokes to an especific window

Hey,
My friend wrote some code to do exactly that task some years ago, but he wrote his application in x86 assembly.
I wrote an application that does the job and works with Girder (an infrared application that allows sending keystrokes to applications just as you mentioned) but I had the problem of "highlighting" the requiered window (I can see you managed to overcome that problem).

I'll try to write something as this task interests me too, and will be a part of my operating system project. I'll post my results.

Best regards,
Kobi Hikri.

WaltP · #3 08-Sep-2005, 08:24

Quote:

Originally Posted by patito

this code works very good to close a lot of running programs that i have tried,but now i found one that is not closing after using that,it just gives me an error and locks the computer.

You will need to figure out what's different about the program that won't close. It's probably hooked into the system differently than a normal program.

kobi_hikri · #4 08-Sep-2005, 08:40

Quote:

Originally Posted by WaltP

You will need to figure out what's different about the program that won't close. It's probably hooked into the system differently than a normal program.

I think the application you are trying to close has a thread (which the application starts when it is called) that monitors it's status.
I think so because that is what I would do if I considered a process "critical" and wanted it to run as long as the system runs.
Excuse me for asking, but can you share the name of the application you are having problems with ?

Kobi Hikri.

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