[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] Reference for unit 'InterfaceBase' (#lcl)

TWidgetSet.InvalidateRect

Marks a display area for repaint.

Declaration

Source position: winapih.inc line 174

public function TWidgetSet.InvalidateRect(

  aHandle: HWND;

  ARect: PRect;

  bErase: Boolean

):Boolean; virtual;

Arguments

aHandle

  

The window handle.

ARect

  

The client coordinates of the area.

bErase

  

True forces a repaint of the background, before further painting.

Function result

False on failure.

See also

TWidgetSet.InvalidateRgn

  

Marks a display area for repaint.
Version 4.0 Generated 2025-05-03 Home