Allows a custom control to prevent the MouseWheel event from being sent to its parent container.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
You will want to use primarily when developing a control that needs to handle mouse wheel events itself, and prevent them from being seen by the control's immediate parent container. is not passed directly by MouseEventHandler when it handles the MouseWheel event. Rather, MouseEventHandler uses a MouseEventArgs, which you must cast to a in order to cancel an occurrence of MouseWheel.
The following code example demonstrates how to mark the mouse wheel event as handled in a custom control.
Public Class MouseWheelControl Sub New() ' Add initialization code for the control here. End Sub Protected Sub MouseWheelControl_MouseWheel(ByVal sender As Object, ByVal e As MouseEventArgs) Handles Me.MouseWheel Dim Hme As HandledMouseEventArgs = e Hme.Handled = True ' Perform custom mouse wheel action here. End Sub End Class
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.