private void AddText(string text)
{
if (InvokeRequired)
{
Invoke(new Action<string>(AddText), text);
}
else
{
if (!richTextBoxOutput.IsDisposed)
{
richTextBoxOutput.Text += text;
richTextBoxOutput.SelectionStart = richTextBoxOutput.Text.Length;
richTextBoxOutput.ScrollToCaret();
}
}
}