Unit 'Controls' Package
[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] [#lcl]

TControl.AddHandlerOnMouseWheel

Adds or inserts the specified OnMouseWheel event handler.

Declaration

Source position: controls.pp line 1776

public procedure TControl.AddHandlerOnMouseWheel(

  const OnMouseWheelEvent: TMouseWheelEvent;

  AsFirst: Boolean = False

);

Arguments

OnMouseWheelEvent

  

TMouseWheelEvent handler routine added to the list for the chtOnMouseWheel 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 4.4 Generated 2025-11-08 Home