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

TControl.AddHandlerOnVisibleChanged

Adds or inserts the specified OnVisibleChanged event handler.

Declaration

Source position: controls.pp line 1761

public procedure TControl.AddHandlerOnVisibleChanged(

  const OnVisibleChangedEvent: TNotifyEvent;

  AsFirst: Boolean = False

);

Arguments

OnVisibleChangedEvent

  

TNotifyEvent handler routine added in the method.

AsFirst

  

True if the routine is inserted as the first handler in the list of handlers for the chtOnVisibleChanged type. False if the routine is appended to the list.

Version 4.0 Generated 2025-05-03 Home