Subclassing and a couple of other things

[Andres Zelcer]

I guess win95 will not allow you to change this value for a window that you don't own.

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From: 	Simon Vilmer Pedersen
Sent: 	Tuesday, August 11, 1998 5:00 AM
To: 	gnu-win32@cygnus.com
Subject: 	Subclassing and a couple of other things

I am experimenting a bit with window subclassing, in specific subclassing the window of the IRC program mIRC from another program. But I cannot seem to get it to work like in the SDK.
First I get the hwnd of the window, with FindWindow("mIRC",NULL)
and it returns the proper hwnd.
But when I then call orgWinProc = (WNDPROC)SetWindowLong(hwnd,GWL_WINPROC,(LONG)WinProc) it returns NULL, and a test with GetWindowLong shows that the above command had no effect. But GetLastError returns 0. Anyone who can help me with this?


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