arcengine 闪烁

private static void FlashPolygon(IMapControlDefault mapControlDefault, IGeometry iGeometry)
{
    ISimpleFillSymbol iFillSymbol;
    ISymbol iSymbol;
    IRgbColor iRgbColor;
    iFillSymbol = new SimpleFillSymbol();
    iFillSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
    iFillSymbol.Outline.Width = 12;
    iRgbColor = new RgbColor();
    iRgbColor.Red = 0;
    iRgbColor.Green = 162;
    iRgbColor.Blue = 232;
    iFillSymbol.Color = iRgbColor;
    iSymbol = (ISymbol)iFillSymbol;
    iSymbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
    mapControlDefault.ActiveView.ScreenDisplay.SetSymbol(iSymbol);
    mapControlDefault.FlashShape(iGeometry, 3, 200, iSymbol);
}