Article View: comp.windows.ms.programmer
Article #1205Re: Help on GetClientRect function
From: Scott Heyano
Date: Sun, 03 Feb 1991 21:38
Date: Sun, 03 Feb 1991 21:38
19 lines
1273 bytes
1273 bytes
In article <11736@helios.TAMU.EDU> tony@cs.tamu.edu (Tony Encarnacion) writes:
[stuff]
| HDC hDC;
| LPRECT lpRect;
|
| switch (iMessage)
| {
| ...
| case WM_RBUTTONDOWN:
| GetClientRect (hWnd, lpRect); /* <<-- this is where it bombs */
| hDC = GetDC (hWnd); /* out; */
| InvertRect (hDC, lpRect);
| ReleaseDC (hWnd, hDC);
[stuff]
the declaration should be for a RECT, not a an LPRECT,
and the uses should be taking the addr of the declared RECT.
So, you have not declared storage for a RECT struct,
just a pointer to one and the call to GetClientRect()
writes into memory at god know's where.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!mit-eddie!uw-beaver!uw-june!wolf.cs.washington.edu!slh From: slh@wolf.cs.washington.edu (Scott Heyano) Newsgroups: comp.windows.ms.programmer Subject: Re: Help on GetClientRect function Summary: grrrrrrrr Message-ID: <14863@june.cs.washington.edu> Date: 3 Feb 91 21:38:33 GMT References: <11736@helios.TAMU.EDU> Sender: news@cs.washington.edu Reply-To: slh@wolf.cs.washington.edu (Scott Heyano) Distribution: usa Organization: Computer Science & Engineering, U. of Washington, Seattle Lines: 19