Question

大家好我试图通过创建进程来执行gs命令，我希望它等到进程完成。我使用了waitforexit（），但它超越了waitforexit（）。

public async void pdf2Png(string name, string pdf, int lastPage)
{
    Stopwatch stopwatch = Stopwatch.StartNew();
    Response.Write((stopwatch.ElapsedMilliseconds / 1000) + "  pdf 2 png" + "<br>");
    Process obj_process = null;
    ProcessStartInfo obj_startinfo = null;
    StreamWriter obj_writer = null;
    string sOutputFile = Path.Combine(Path.GetDirectoryName(pdf), name + "%d.png"); ;
    string inputFilePath = pdf;
    int lP = lastPage;
    Response.Write(sOutputFile + " : " + inputFilePath + "<br>");
    string str_command = string.Format("gswin64 -dSAFER -dBATCH -dNOPAUSE -dFirstPage=1 -dLastPage=\"{0}\" -sDEVICE=png16m -r600 -sOutputFile=\"{1}\" \"{2}\"",
                               lP, sOutputFile, inputFilePath);
    obj_startinfo = new ProcessStartInfo("cmd.exe");
    obj_startinfo.UseShellExecute = false;
    obj_startinfo.RedirectStandardInput = true;
    obj_startinfo.RedirectStandardError = true;
    obj_startinfo.RedirectStandardOutput = true;
    obj_startinfo.CreateNoWindow = true;
    obj_startinfo.ErrorDialog = false;
    obj_startinfo.WindowStyle = ProcessWindowStyle.Hidden;
    obj_process = Process.Start(obj_startinfo);
    obj_writer = obj_process.StandardInput;
    obj_writer.WriteLine(str_command);
    obj_writer.Flush();
    obj_writer.Close();
    obj_writer.Dispose();
    obj_writer = null;
    obj_process.WaitForExit();
    System.IO.File.WriteAllText(@"D:\shits not working.txt", str_command);
    stopwatch.Stop();
    Response.Write((stopwatch.ElapsedMilliseconds / 1000) + "  pdf 2 png" + "<br>");        
}

以下一行＆＃34; Waitforexit（）＆＃34;甚至在创建png之前就会执行并退出进程。我能做什么？

Ghost脚本命令剂等待WaitForExit（）

0 个答案: