[jimtabor] 72335: [NtUser] - Patch by Józef Kucia : Prevent resetting WS_MINIMIZE through SetWindowLong.

Author: jimtabor
Date: Thu Aug 18 23:37:42 2016
New Revision: 72335

URL: http://svn.reactos.org/svn/reactos?rev=72335&view=rev
Log:
[NtUser] - Patch by Józef Kucia : Prevent resetting WS_MINIMIZE through SetWindowLong.

Modified:
    trunk/reactos/win32ss/user/ntuser/window.c

Modified: trunk/reactos/win32ss/user/ntuser/window.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/ntuser/window…
==============================================================================
--- trunk/reactos/win32ss/user/ntuser/window.c	[iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/ntuser/window.c	[iso-8859-1] Thu Aug 18 23:37:42 2016
@@ -3587,8 +3587,10 @@
             if (!bAlter)
                 co_IntSendMessage(hWnd, WM_STYLECHANGING, GWL_STYLE, (LPARAM)
&Style);
 
-           /* WS_CLIPSIBLINGS can't be reset on top-level windows */
+            /* WS_CLIPSIBLINGS can't be reset on top-level windows */
             if (Window->spwndParent == UserGetDesktopWindow()) Style.styleNew |=
WS_CLIPSIBLINGS;
+            /* WS_MINIMIZE can't be reset */
+            if (OldValue & WS_MINIMIZE) Style.styleNew |= WS_MINIMIZE;
             /* Fixes wine FIXME: changing WS_DLGFRAME | WS_THICKFRAME is supposed to
change WS_EX_WINDOWEDGE too */
             if (IntCheckFrameEdge(NewValue, Window->ExStyle))
                Window->ExStyle |= WS_EX_WINDOWEDGE;