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Avoid crashes if window belongs to another process.

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This commit is contained in:
Dmitry Timoshkov 2002-06-13 21:56:12 +00:00 committed by Alexandre Julliard
parent 9c6ba05436
commit b4d3cb599e
1 changed files with 2 additions and 2 deletions
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4
windows/painting.c
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@ -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)
{