public void PresentModal (Control control, string text)
{
if (IsDisposed)
return;
Size display_size;
// XplatUI.GetDisplaySize (out display_size);
associated_control = control;
Text = text;
PopupEventArgs pea = new PopupEventArgs (control, control, false, Size.Empty);
OnPopup (pea);
if (pea.Cancel)
return;
Size = pea.ToolTipSize;
Visible = true;
}