/// <summary>
/// Mouse button has been pressed in the view.
/// </summary>
/// <param name="c">Reference to the source control instance.</param>
/// <param name="pt">Mouse position relative to control.</param>
/// <param name="button">Mouse button pressed down.</param>
/// <returns>True if capturing input; otherwise false.</returns>
public bool MouseDown(Control c, Point pt, MouseButtons button)
{
_manager.MouseDown(_targetElement, c, pt, button);
return(_targetController != null && _targetController.MouseDown(c, pt, button));
}