/// <summary>
/// Make this widget the focus of keyboard input.
/// </summary>
/// <returns></returns>
public override void Focus()
{
#if DEBUG
if (Parent == null)
{
throw new Exception("Don't call Focus() until you have a Parent.\nCalling focus without a parent will not result in the focus chain pointing to the widget, so it will not work.");
}
#endif
internalTextEditWidget.Focus();
}
