Force to close MessageBox programmatically

Question

Let me give you the background.

We have an Application(medium sized) that is using MessageBox.Show (....) at various places (in hundreds).

These message bo

Answer 1

Heres my example with SendKeys - tested and working:

lets say we have backgroundworker and button in form. After button was click - start worker and show message box. In workers DoWork event sleep for 5s and then send enter key - messsage box closed.

private void button1_Click(object sender, EventArgs e)
{
    backgroundWorker1.RunWorkerAsync();
    MessageBox.Show("Close this message!");
}

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
    Thread.Sleep(5000);
    SendKeys.SendWait("{Enter}");//or Esc
}