private void _toolTipRtfListOfSearches_Popup(object sender, PopupEventArgs e) { // Determine the correct size (don't use balloon) using (Font f = new Font("Courier New", 10)) { e.ToolTipSize = TextRenderer.MeasureText( _toolTipRtfListOfSearches.GetToolTip(e.AssociatedControl), f); } } /// <summary>