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

TWinControl.Invalidate

Schedules a repaint request.

Declaration

Source position: controls.pp line 2421

public procedure TWinControl.Invalidate; override;

Description

Invalidate is an overridden method in TWinControl. It re-implements the inherited method to call the Invalidate method in the widgetset class instance when its Handle has been allocated. It does not call the inherited method.

The control is redrawn when there are no pending window messages in the message queue.

See also

TControl.Invalidate

  

Causes a delayed Repaint of the control by marking its visible area of the control as invalid.

Version 3.2 Generated 2024-02-25 Home