How to capture text that another console program writes on the screen

Question

My Windows Forms program runs another console program. This second one writes messages on the screen while running. I want to know if you can prevent the execution of the other program from opening the console, and instead, the printf of the other program (which is written in C++) is displayed in my Textbox.

Practical example: Imagex is a Microsoft console program. A user created Gimagex which has a graphical interface and runs Imagex and all text outputs appear in Gimagex.

Answer 1

Before making process.Start() place true in process.StartInfo.RedirectStandardOutput and false in process.StartInfo.UseShellExecute

Supposing you want to receive the output of the program Consoleapplication.exe in a Listbox do so:

public Form1()
{
    InitializeComponent();
    StartProcess();
}

public void StartProcess()
{
    Process p = new Process();
    p.StartInfo.UseShellExecute = false;
    p.StartInfo.RedirectStandardOutput = true;
    p.StartInfo.FileName = "ConsoleApplication.exe";
    p.OutputDataReceived += new DataReceivedEventHandler(OutputHandler);

    p.Start();
    p.BeginOutputReadLine();
    p.WaitForExit();
    p.Close();
}

private void OutputHandler(object process, DataReceivedEventArgs e)
{
    if (!String.IsNullOrEmpty(e.Data))
    {
        listBox1.Items.Add(e.Data);
    }
}

_{Note: I assume that Consoleapplication.exe does not require any user intervention(input) throughout its execution.}

Sources:
Processstartinfo.Redirectstandardoutput Property
Process.Beginoutputreadline Method