Fix crash when no theme is set and application ignores errors.
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@ -405,6 +405,10 @@ HRESULT WINAPI HitTestThemeBackground(HTHEME hTheme, HDC hdc, int iPartId,
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BOOL WINAPI IsThemePartDefined(HTHEME hTheme, int iPartId, int iStateId)
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{
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TRACE("(%p,%d,%d)\n", hTheme, iPartId, iStateId);
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if(!hTheme) {
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SetLastError(E_HANDLE);
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return FALSE;
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}
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if(MSSTYLES_FindPartState(hTheme, iPartId, iStateId, NULL))
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return TRUE;
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return FALSE;
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