TControl.DoMouseWheel function

Declaration

function DoMouseWheel(Shift: TShiftState; WheelDelta: Integer; 
 MousePos: TPoint): Boolean; virtual

Description

Multiple wheel handlers can be implemented. First the general OnMouseWheel handler is tried, and if it doesn't report the event handled, then OnMouseWheelUp or OnMouseWheelDown are tried.

The actual WheelDelta is available only to the OnMouseWheel handler, not to the up and down handlers [Delphi compatible].

See also

• TMouseWheelEvent
• TMouseWheelUpDownEvent