C#中实现代码说明：123456789101112131415161718private void DrawFlag(object sender, EventArgs e){MxDrawResbuf param;param = new MxDrawResbuf();MxDrawPoint point;point = new MxDrawPoint(); point.x = 100;point.y = 100; param.AddPoint(point); MxDrawResbuf ret; ret = (MxDrawResbuf)axMxDrawX1.CallEx("ExApp_AddFlag", param); MessageBox.Show(ret.AtLong(1).ToString());}效果展示：
