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MouseButton Enumeration

Defines values that specify the buttons on a mouse device.

Namespace:  System.Windows.Input
Assembly:  PresentationCore (in PresentationCore.dll)

'Declaration
Public Enumeration MouseButton
<object property="enumerationMemberName" .../>

Member nameDescription
LeftThe left mouse button.
MiddleThe middle mouse button.
RightThe right mouse button.
XButton1The first extended mouse button.
XButton2The second extended mouse button.

The following example creates a MouseDown event handler that uses the MouseButton enumeration to determine which button was pressed. Depending on which button was pressed, the background of the control that fired the event is changed.


Private Sub MouseButtonDownHandler(ByVal sender As Object, ByVal e As MouseButtonEventArgs)
    Dim src As Control = TryCast(e.Source, Control)

    If src IsNot Nothing Then
        Select Case e.ChangedButton
            Case MouseButton.Left
                src.Background = Brushes.Green
            Case MouseButton.Middle
                src.Background = Brushes.Red
            Case MouseButton.Right
                src.Background = Brushes.Yellow
            Case MouseButton.XButton1
                src.Background = Brushes.Brown
            Case MouseButton.XButton2
                src.Background = Brushes.Purple
            Case Else
        End Select
    End If
End Sub


.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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