[gadamopoulos] 47238: [user32] -CreateWindow should fail when called with WS_EX_MDICHILD and the specified parent is not an mdiclient

Author: gadamopoulos
Date: Sun May 16 11:32:51 2010
New Revision: 47238

URL: http://svn.reactos.org/svn/reactos?rev=47238&view=rev
Log:
[user32]
-CreateWindow should fail when called with WS_EX_MDICHILD and the specified parent is not an mdiclient

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

Modified: trunk/reactos/dll/win32/user32/windows/window.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/user32/windows/wi...
==============================================================================
--- trunk/reactos/dll/win32/user32/windows/window.c [iso-8859-1] (original)
+++ trunk/reactos/dll/win32/user32/windows/window.c [iso-8859-1] Sun May 16 11:32:51 2010
@@ -287,6 +287,18 @@
         POINT mPos[2];
         UINT id = 0;
         HWND top_child;
+        PWND WndParent;
+        PCLS pcls;
+
+        if(!(WndParent = ValidateHwnd(hWndParent)) ||
+           !(pcls = DesktopPtrToUser(WndParent->pcls)))
+            return 0;
+
+        if (pcls->fnid != FNID_MDICLIENT)
+        {
+            ERR("WS_EX_MDICHILD, but parent %p is not MDIClient\n", hWndParent);
+            return 0;
+        }

/* lpParams of WM_[NC]CREATE is different for MDI children.
         * MDICREATESTRUCT members have the originally passed values.
@@ -399,6 +411,24 @@
         POINT mPos[2];
         UINT id = 0;
         HWND top_child;
+        PWND WndParent;
+        PCLS pcls;
+
+        WndParent = ValidateHwnd(hWndParent);
+
+        if(!WndParent)
+            return 0;
+
+        pcls = DesktopPtrToUser(WndParent->pcls);
+
+        if(!pcls)
+            return 0;
+
+        if (pcls->fnid != FNID_MDICLIENT)
+        {
+            ERR("WS_EX_MDICHILD, but parent %p is not MDIClient\n", hWndParent);
+            return 0;
+        }

/* lpParams of WM_[NC]CREATE is different for MDI children.
         * MDICREATESTRUCT members have the originally passed values.