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

TControl.AddHandlerOnBeforeDestruction

Adds or inserts the specified OnBeforeDestruction event handler.

Declaration

Source position: controls.pp line 1773

public procedure TControl.AddHandlerOnBeforeDestruction(

  const OnBeforeDestructionEvent: TNotifyEvent;

  AsFirst: Boolean = False

);

Arguments

OnBeforeDestructionEvent

  

TNotifyEvent handler routine added to the list of handlers for the chtOnBeforeDestruction handler type.

AsFirst

  

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

Version 4.0 Generated 2025-05-03 Home