玻璃窗口
窗体如果指定WS_MAXIMIZEBOX样式则添加拖动调整大小边框
除参数@1必须指定winfom对象以外,其他所有参数可选,
参数默认值及具体用法请查看支持库源码
winUiGlassObject.onDrawShadow = function(hdc,hMemDc,hMemBitmap,width,height){
var graphics = ..gdip.graphics(hMemDc);
graphics.smoothingMode = 4/*_GdipSmoothingModeAntiAlias*/;
graphics.delete();
}