This method redraws a control.
HRESULT Redraw( void );
NOERROR indicates success. S_FALSE indicates that the control did not handle the message. If an error occurs, the appropriate HRESULT value is returned.
The IASControl::Redraw method is used to notify a form to redraw itself. It can do this by invoking one of its form’s invalidation methods, or by requesting an IFMDraw interface pointer. IFMDraw enables IASControl::Redraw to handle repainting by itself.
IASControl::Draw, IASForm::Invalidate