Problems getting desired output from Process.Start()

Question

I am working on an application that calls several command line applications to do some post processing on some video files.

Right now I am trying to use Comskip to ide

Answer 1

See the docs on RedirectStandardOutput. Waiting for the child process to end before reading the output can cause a hang.

It particular, the example says not to do what you have done:

 Process p = new Process();
 // Redirect the output stream of the child process.
 p.StartInfo.UseShellExecute = false;
 p.StartInfo.RedirectStandardOutput = true;
 p.StartInfo.FileName = "Write500Lines.exe";
 p.Start();
 // Do not wait for the child process to exit before
 // reading to the end of its redirected stream.
 // p.WaitForExit();
 // Read the output stream first and then wait.
 string output = p.StandardOutput.ReadToEnd();
 p.WaitForExit();

You should use the events OutputDataReceived and possibly ErrorDataReceived and update the progress bar in the handler.