private void copyText_Click(object sender, EventArgs e)
{
Control sourceControl = GetSourceControl(sender);
MessageControl.Message msg = sourceControl as MessageControl.Message;
Clipboard.SetText(msg.Text);
}
private void MessageViewer_ControlAdded(object sender, ControlEventArgs e)
{
messageViewer.ScrollControlIntoView(e.Control);
MessageControl.Message m = e.Control as MessageControl.Message;
m.ContextMenuStrip = copyMessageText;
}