private void DrawQrCode()
 {
     MxDrawUiPrPoint getPoint = new MxDrawUiPrPoint();
     getPoint.message = "点取插入点:";
     if (getPoint.go() != MCAD_McUiPrStatus.mcOk)
         return;
     MxDrawQrCode qrCode = new MxDrawQrCode();
     qrCode.Center = getPoint.value();
     qrCode.Text = "www.mxdraw.com";
     qrCode.Scale = 20;
     qrCode.Rotation = 30 * 3.1415925 / 180.0;
     axMxDrawX1.DrawEntity(qrCode);
 }