Vcl.Controls.TMouseWheelEvent

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C++

typedef void __fastcall (__closure *TMouseWheelEvent)(System::TObject* Sender, System::Classes::TShiftState Shift, int WheelDelta, const System::Types::TPoint &MousePos, bool &Handled);

Properties

Type	Visibility	Source	Unit	Parent
typedef	public	Vcl.Controls.hpp	Vcl.Controls	Vcl.Controls

Description

TMouseWheelEvent is the function type for an OnMouseWheel event.

TMouseWheelEvent has the following parameters:

Parameter	Meaning
Sender	The control that generated the event.
Shift	The shift state during the rotation of the mouse wheel.
WheelDelta	The amount by which the mouse wheel is rotated.
MousePos	The current mouse coordinates.
Handled	Specifies whether the event is handled in the user code.

See Also

• OnMouseWheel

• Procedural types

• Creating events