C# Halcon 中捕获异常

之前由于不会用，所以在C#中一直不能捕获到异常，后面发现用这种方法可以。如下

          private void Form1_Load(object sender, EventArgs e)
          {
             
            HObject ho_Image = null;
            HTuple hv_Exception = null;
            HOperatorSet.GenEmptyObj(out ho_Image);

            try {
                try {
                    ho_Image.Dispose();
                    HOperatorSet.ReadImage(out ho_Image, "E:/testImage/00177.bmp");
                }
                catch (HalconException HDevExpDefaultException1) {
                    HDevExpDefaultException1.ToHTuple(out hv_Exception);

                    int errId = hv_Exception[0].I;
                    string errMsg = hv_Exception[1].S;
                }
            }
            catch (HalconException HDevExpDefaultException) {
                ho_Image.Dispose();

                throw HDevExpDefaultException;
            }
            ho_Image.Dispose();
        }