TClrCustomControl.Invalidate(TRect,Boolean) Method

Invalidates the specified region 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. Optionally, invalidates the child controls assigned to the control.

Namespace: CNClrLib.Control.Base
Delphi
public
 procedure Invalidate(rc: TRect; invalidateChildren: Boolean); reintroduce; overload;

Parameters

rc
Type: TRect

A Rectangle that represents the region to invalida

invalidateChildren
Type: Boolean

true to invalidate the control's child controls; otherwise, false.