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

TMouseWheelUpDownEvent

Type of OnMouseWheelUp/Down event handlers.

Declaration

Source position: controls.pp line 483

type TMouseWheelUpDownEvent = procedure(

  Sender: TObject;

  Shift: TShiftState;

  MousePos: TPoint;

  var Handled: Boolean

) of object;

Arguments

Sender

  

The control under the mouse.

Shift

  

State of the modifier keys and mouse buttons.

MousePos

  

The mouse position, in client coordinates.

Handled

  

Set Handled to True when the event was handled.
Version 3.2 Generated 2024-02-25 Home