[jimtabor] 73333: [User32] - Fix dialog pop up crash due to loop. - Sync/Port from wine head, not sure about Staging.

Author: jimtabor
Date: Tue Nov 22 03:57:48 2016
New Revision: 73333

URL: http://svn.reactos.org/svn/reactos?rev=73333&view=rev
Log:
[User32]
- Fix dialog pop up crash due to loop.
- Sync/Port from wine head, not sure about Staging.

Modified:
    trunk/reactos/win32ss/user/user32/windows/dialog.c

Modified: trunk/reactos/win32ss/user/user32/windows/dialog.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/user32/windows...
==============================================================================
--- trunk/reactos/win32ss/user/user32/windows/dialog.c	[iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/user32/windows/dialog.c	[iso-8859-1] Tue Nov 22 03:57:48 2016
@@ -847,10 +847,7 @@

/* Create dialog main window */

-    rect.left = rect.top = 0;
-    rect.right = MulDiv(template.cx, xBaseUnit, 4);
-    rect.bottom =  MulDiv(template.cy, yBaseUnit, 8);
-
+    SetRect(&rect, 0, 0, MulDiv(template.cx, xBaseUnit, 4), MulDiv(template.cy, yBaseUnit, 8));
     if (template.style & DS_CONTROL)
         template.style &= ~(WS_CAPTION|WS_SYSMENU);
     template.style |= DS_3DLOOK;
@@ -926,24 +923,13 @@
          * even if dialog has WS_CHILD, but only for modal dialogs, which matched what
          * Windows does.
          */
-
+        while ((GetWindowLongW( owner, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) == WS_CHILD)
+        {
+            parent = GetParent( owner );
+            if (!parent || parent == GetDesktopWindow()) break;
+            owner = parent;
+        }
         ////// Wine'ie babies need to fix your code!!!! CORE-11633
-        if ((GetWindowLongW( owner, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) == WS_CHILD)
-        {
-           parent = owner;
-           while ((GetWindowLongW( parent, GWL_STYLE ) & (WS_POPUP|WS_CHILD)) == WS_CHILD)
-           {
-               parent = GetParent( owner );
-               if (!parent || parent == GetDesktopWindow())
-               {
-                  parent = NULL;
-                  break;
-               } 
-           }
-        }
-        else
-           parent = GetAncestor( owner, GA_ROOT );
-
         if (parent)
         {
            owner = parent;
@@ -2488,6 +2474,9 @@
   LPMSG lpMsg)
 {
     INT dlgCode = 0;
+
+    if (!IsWindow( hDlg ))
+        return FALSE;

if (CallMsgFilterW( lpMsg, MSGF_DIALOGBOX )) return TRUE;