小弟做的一个OCR程序,用try catch 为何捕捉不到异常??

royler 2010-09-24 02:54:43

小弟做的一个OCR的程序,调用的是office的组件.在程序运行的时候try catch捕捉不到异常...



for (int nItem = 0; nItem < nCount; nItem++)

            {

                miImage = (MODI.Image)miDoc.Images[nItem];



                // Determine if this image has saved OCR information

                try

                {

                      //问题就是出现在下面这句..程序运行的时候直接跳出去了.catch捕捉不到异常??

               miImage.OCR(MODI.MiLANGUAGES.miLANG_CHINESE_SIMPLIFIED, true, true);                   //  miDoc.Save();

                    nWordCount = miImage.Layout.NumWords;

                }

                catch(Exception ex)

                {

                    nWordCount = -1;

                    LogManager.FileWriter(strFilename, ex.Message);

                }



                // If image wasn't OCR'd yet, do it now and save the results

                if (nWordCount == -1)

                {

                    try

                    {

                        miImage.OCR(MODI.MiLANGUAGES.miLANG_CHINESE_SIMPLIFIED, true, true);

                        miDoc.Save();

                    }

                    catch (Exception ex)

                    {

                        LogManager.FileWriter(strFilename,ex.Message);

                        continue;

                    }

                }