Invalidates the specified rectangle of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control.

'Declaration

Public Overloads Sub Invalidate( _
   ByVal rect
The rectangle to invalidate.
 As Vintasoft.Primitives.VintasoftRect _
)

public void Invalidate(
   Vintasoft.Primitives.VintasoftRect rect
)

public: void Invalidate(
   Vintasoft.Primitives.VintasoftRect rect
)

public:
void Invalidate(
   Vintasoft.Primitives.VintasoftRect rect
)