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

TControl.DoMouseWheelDown

Signals the OnMouseWheelDown handler.

Declaration

Source position: controls.pp line 1535

protected function TControl.DoMouseWheelDown(

  Shift: TShiftState;

  MousePos: TPoint

):Boolean; virtual;

Arguments

Shift

  

Shift, Ctrl or Alt modifier for the mouse wheel event notification.

MousePos

  

Location for the mouse pointer when the wheel event was generated.

Function result

True if the mouse wheel message is handled.

Version 4.0 Generated 2025-05-03 Home