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Protect EndDialog() from invalid window handles.

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Andreas Mohr 2000-02-12 13:21:23 +00:00 committed by Alexandre Julliard
parent c3bc0fa2e3
commit beae14de0c
1 changed files with 8 additions and 2 deletions
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10
windows/dialog.c
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@ -1099,12 +1099,18 @@ BOOL16 WINAPI EndDialog16( HWND16 hwnd, INT16 retval )
BOOL WINAPI EndDialog( HWND hwnd, INT retval ) BOOL WINAPI EndDialog( HWND hwnd, INT retval )
{ {
WND * wndPtr = WIN_FindWndPtr( hwnd ); WND * wndPtr = WIN_FindWndPtr( hwnd );
DIALOGINFO * dlgInfo = (DIALOGINFO *)wndPtr->wExtra; DIALOGINFO * dlgInfo;
HWND hOwner = 0; HWND hOwner = 0;
TRACE("%04x %d\n", hwnd, retval ); TRACE("%04x %d\n", hwnd, retval );
if( dlgInfo ) if (!wndPtr)
{
ERR("got invalid window handle (%04x); buggy app !?\n", hwnd);
return TRUE; /* the sun is shining even for buggy apps */
}
if ((dlgInfo = (DIALOGINFO *)wndPtr->wExtra))
{ {
dlgInfo->idResult = retval; dlgInfo->idResult = retval;
dlgInfo->flags |= DF_END; dlgInfo->flags |= DF_END;