Thread: Finding windows

I'm trying to get the process name of a window that changes, but always contains a certain substring.. is there any way to do this without knowing the process and only knowing part of the window? I've heard to use EnumWindows.. but I don't know how it works and how to get window titles using it. Thanks

EnumWindows takes a function pointer to a callback function which is passed the window handles one at a time (and an application-defined LPARAM):

Code:

BOOL CALLBACK
enumWindowsProc( HWND hwnd, LPARAM lp)
{
    char buf[ BUFSIZE];
    GetWindowText( hwnd, buf, BUFSIZE);
    // check it for substring ...
    return TRUE; // or FALSE to end enumeration
}

...
EnumWindows( enumWindowsProc, 0);

thanks, I got it.. I essentially used that.. my code is

Code:

// check if a window is the one you're looking for
BOOL CALLBACK checkWindow(HWND hwnd,LPARAM param)
{
	// where to copy the window title
	char window_title[128] = {0};
	// politely ask the target window to copy its title into our buffer
	SendMessageA(hwnd,WM_GETTEXT,sizeof(window_title),(LPARAM)(char*)window_title);
	// if the target window title is bigger than the current window title, null terminate the target window title,
	// otherwise, null terminate the current window title
	((sizeof(target_windowtitle)>sizeof(window_title)) ? target_windowtitle[sizeof(window_title)-1] : window_title[sizeof(target_windowtitle)-1]) = 0;
	// search for our wanted title inside the passed title,
	// and if it's found...
	if(!strcmp(lowercase(window_title),lowercase(target_windowtitle)))
	{
		// cast our parameter to a pointer and set its target to the current window (AKA success)
		*(HWND*)param = hwnd;
		// stop checking the windows
		return false;
	}
	// otherwise keep checking windows
	else return true;
}

You should have read nucleon's post, or MSDN:

Originally Posted by MSDN

EnumWindows continues until the last top-level window is enumerated or the callback function returns FALSE.