[jimtabor] 45013: [User32] - Add corrected behavior for SetWindowRgn, delete region object after setting windows region. See bug 4980. - After a successful call to SetWindowRgn, the system owns the region specified by the region handle hRgn. The system does not make a copy of the region. Thus, you should not make any further function calls with this region handle. In particular, do not delete this region handle. The system deletes the region handle when it no longer needed. - References : http:/

Author: jimtabor
Date: Sat Jan  9 07:16:51 2010
New Revision: 45013

URL: http://svn.reactos.org/svn/reactos?rev=45013&view=rev
Log:
[User32]
- Add corrected behavior for SetWindowRgn, delete region object after setting windows
region. See bug 4980.
- After a successful call to SetWindowRgn, the system owns the region specified by the
region handle hRgn. The system does not make a copy of the region. Thus, you should not
make any further function calls with this region handle. In particular, do not delete this
region handle. The system deletes the region handle when it no longer needed.
- References : http://msdn.microsoft.com/en-us/library/dd145102(VS.85).aspx

Modified:
    trunk/reactos/dll/win32/user32/windows/paint.c

Modified: trunk/reactos/dll/win32/user32/windows/paint.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/user32/windows/p…
==============================================================================
--- trunk/reactos/dll/win32/user32/windows/paint.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/user32/windows/paint.c [iso-8859-1] Sat Jan  9 07:16:51 2010
@@ -149,7 +149,13 @@
    Hook = BeginIfHookedUserApiHook();
 
    /* Bypass SEH and go direct. */
-   if (!Hook) return (int)NtUserSetWindowRgn(hWnd, hRgn, bRedraw);
+   if (!Hook)
+   {
+      Ret = NtUserSetWindowRgn(hWnd, hRgn, bRedraw);
+      if (hRgn && Ret)
+          DeleteObject(hRgn);
+      return Ret;
+   }
 
    _SEH2_TRY
    {