TOnMouseWheel

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Type of the OnMouseWheel event


Declaration
TOnMouseWheel=procedure (Sender: TObject; VideoWindow: LongInt; DirectionUp: Boolean; X: LongInt; Y: LongInt) of object;


typedef void __fastcall (__closure *TOnMouseWheel)(System::TObject* Sender, int VideoWindow, bool DirectionUp, int X, int Y);

Description

Type of the OnMouseWheel event.

The DirectionUp parameter returns:
- true when the mouse wheel goes up,
- false when the mouse wheel goes down.