The TreeView.OnMouseHover(EventArgs) method performs a hit test to see whether the mouse is located over a System.Windows.Forms.TreeNode, and if it is, raises the TreeView.NodeMouseHover event.

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

The TreeView.OnMouseHover(EventArgs) 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.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Assembly Versions: 2.0.0.0