user32: Handle all kinds of values returned by WIN_GetPtr.

[Dmitry Timoshkov]

The application installer in the bug 15829 does everything in WM_CREATE
message handler including DestroyWindow(), so after WM_CREATE WIN_GetPtr()
returns WND_OTHER_PROCESS.
---
 dlls/user32/win.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/dlls/user32/win.c b/dlls/user32/win.c
index ddea523..833e07d 100644
--- a/dlls/user32/win.c
+++ b/dlls/user32/win.c
@@ -1231,7 +1231,8 @@ static HWND WIN_CreateWindowEx( CREATESTRUCTA *cs, LPCWSTR className, UINT flags
 
     /* send the size messages */
 
-    if (!(wndPtr = WIN_GetPtr(hwnd))) return 0;
+    if (!(wndPtr = WIN_GetPtr( hwnd )) ||
+          wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP) return 0;
     if (!(wndPtr->flags & WIN_NEED_SIZE))
     {
         rect = wndPtr->rectClient;
-- 
1.6.0.3