Reading your program, it looks like you only run the gtk main loop when
your child gives you data.
Also, that is gtk, this is the win forms list :-)
On 2 Apr 2013 21:18, "Neil Thackeray" <ne...@illinois.edu> wrote:
> I'm having trouble getting the output from a command line program to
> appear in the main window of a form. For simplicity I'm just trying to get
> it to appear in a label for now. When I run the function RunIt nothing from
> stdout of the child process appears in the label, but ConsoleWriteline
> seems to pick it up just fine. When it gets down to the while loop it
> updates the label perfectly fine.
>
> I've also noticed that the form seems to be locked while the child process
> is running. When I was just using BackgroundWorker without
> Application.Invoke the form updated from the child process and the while
> loop, but the update was spotty and the application crashed sporadically.
>
> Any suggestions are appreciated.
>
> Thanks
>
> namespace windowtest
> {
> public partial class MainWindow: Gtk.Window
> {
> public MainWindow (): base (Gtk.WindowType.Toplevel)
> {
> Build ();
> }
>
> protected void OnDeleteEvent (object sender, DeleteEventArgs a)
> {
> Application.Quit ();
> a.RetVal = true;
> }
>
> public void RunIt ()
> {
> string prog = @"C:/Program Files (x86)/Program/Program.exe";
> // Start the child process.
> System.Diagnostics.Process p = new
> System.Diagnostics.Process();
> p.StartInfo.UseShellExecute = false;
> p.StartInfo.Arguments = "Program Arguments";
> p.StartInfo.**RedirectStandardOutput = true;
> p.StartInfo.FileName = prog;
> p.StartInfo.CreateNoWindow = true;
> p.EnableRaisingEvents = true;
> // Redirect the output stream of the child process.
> p.OutputDataReceived += new DataReceivedEventHandler(
> delegate(object sender, DataReceivedEventArgs e)
> {
> if (!String.IsNullOrEmpty(e.Data)**)
> {
> lblTest.Text = e.Data;
> while (Gtk.Application.EventsPending ())
> Gtk.Application.RunIteration ();
> Console.WriteLine(e.Data);
> }
> }
> );
> p.Start();
> p.BeginOutputReadLine();
> p.WaitForExit();
> p.Close();
> int i = 0;
> while (i < 20)
> {
> lblTest.Text = i.ToString();
> while (Gtk.Application.EventsPending ())
> Gtk.Application.RunIteration ();
> Console.WriteLine(i.ToString()**);
> i++;
> System.Threading.Thread.Sleep (100);
> }
> lblTest.Text = "Test";
> }
>
> protected void OnButton4Clicked (object sender, EventArgs e)
> {
> System.ComponentModel.**BackgroundWorker bw = new
> System.ComponentModel.**BackgroundWorker();
> bw.WorkerSupportsCancellation = true;
> bw.DoWork += new System.ComponentModel.**
> DoWorkEventHandler(TestInvoke)**;
> if (bw.IsBusy != true)
> {
> bw.RunWorkerAsync();
> }
> }
> private void TestInvoke(object sender,
> System.ComponentModel.**DoWorkEventArgs
> e)
> {
> Application.Invoke(delegate{ RunIt(); });
> }
> }
> }
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