Question

My program is in win forms (c#). It should open an external program, do a printscreen of it’s main window, and close it.
By using Process.Start() I can open the the program, but then all the focus is on it and my code is halted. Only when I close it myself my form continues- but it’s too late for the screenshot.
So how do I force my code to keep running?

    public void Runttk(string maromnum)
    {
        Process runttk = new Process();
        runttk.StartInfo.UseShellExecute = true;               
        runttk.StartInfo.FileName = @"C:\\program.exe";
        runttk.StartInfo.WindowStyle = ProcessWindowStyle.Normal;
        runttk.Start();
        this.Focus();
        try
        {
            if (runttk.WaitForInputIdle()==true)
            {                                          
                PringJpg(maromnum);
                Killttk();
            }
        }
        catch (Exception e)
        {
        }

    }

Thank you

UPDATE:
eventuanlly I’ve used Thread.Sleep(3000). Crued but do the trick.
I didn’t used backgroundworker because the sync between the finale uplaod the the extenral program and my code wasn’t clear enough.

Answer 1

Trying your code, but with another program like notepad.exe, Notepad runs and then control drops through to where you call PringJpg.

So I think the problem is that it is blocking on if (runttk.WaitForInputIdle()==true), please try adding a timeout to this operation.