82         return GetInstance().DwmGetWindowAttributeFunction()(hwnd, dwAttribute,

    82         return GetInstance().DwmGetWindowAttributeFunction()(hwnd, dwAttribute,

    83                 pvAttribute, cbAttribute);

    83                 pvAttribute, cbAttribute);

    84     }

    84     }

    85     throw FunctionUnavailableException();

    85     throw FunctionUnavailableException();

    86 }

    86 }