[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [SWindow](API\Runtime\SlateCore\Widgets\SWindow) > RequestCompositingPickerWindow ( [TWeakUIntrfacePtr](API\Plugins\Composure\EditorSupport\TWeakUIntrfacePtr)< [ICompImageColorPickerInterface](API\Plugins\Composure\EditorSupport\ICompImageColorPickerInterface) > PickerTarget, const bool bAverageColorOnDrag, const [FPickerResultHandler](API\Plugins\Composure\EditorSupport\ICompositingEditor\FPickerResultHandler) & OnPick, const FSimpleDelegate & OnCancel, const [FText](API\Runtime\Core\Internationalization\FText) & WindowTitle )