ScrollBar.OnMouseWheel Method (MouseEventArgs)

 

Raises the MouseWheel event

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

protected override void OnMouseWheel(
	MouseEventArgs e
)

The ScrollBar control will convert mouse wheel movements to scrolling when the ScrollBar is in focus.

Raising an event invokes the event handler through a delegate. For more information, see NIB: Raising an Event.

The OnMouseWheel method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors:

When overriding OnMouseWheel in a derived class, be sure to call the base class’s OnMouseWheel method so that registered delegates receive the event.

.NET Framework
Available since 2.0
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