Commit b4d3cb59 authored by Dmitry Timoshkov's avatar Dmitry Timoshkov Committed by Alexandre Julliard

Avoid crashes if window belongs to another process.

parent 9c6ba054
......@@ -150,7 +150,7 @@ static BOOL WIN_HaveToDelayNCPAINT( HWND hwnd, UINT uncFlags)
while ((hwnd = GetAncestor( hwnd, GA_PARENT )))
{
WND* parentWnd = WIN_FindWndPtr( hwnd );
if (!(parentWnd->dwStyle & WS_CLIPCHILDREN) && parentWnd->hrgnUpdate)
if (parentWnd && !(parentWnd->dwStyle & WS_CLIPCHILDREN) && parentWnd->hrgnUpdate)
{
WIN_ReleaseWndPtr( parentWnd );
return TRUE;
......@@ -335,7 +335,7 @@ static void RDW_ValidateParent(WND *wndChild)
while (parent && parent != GetDesktopWindow())
{
WND *wndParent = WIN_FindWndPtr( parent );
if (!(wndParent->dwStyle & WS_CLIPCHILDREN))
if (wndParent && !(wndParent->dwStyle & WS_CLIPCHILDREN))
{
if (wndParent->hrgnUpdate != 0)
{
......
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