MouseButtonEventArgs.ChangedButton 属性

  • 参考

定义

命名空间:
System.Windows.Input
程序集:
PresentationCore.dll

获取与该事件关联的按钮。

public:
 property System::Windows::Input::MouseButton ChangedButton { System::Windows::Input::MouseButton get(); };
public System.Windows.Input.MouseButton ChangedButton { get; }
member this.ChangedButton : System.Windows.Input.MouseButton
Public ReadOnly Property ChangedButton As MouseButton

属性值

MouseButton

按下的按钮。

示例

以下示例创建一个鼠标按钮事件处理程序，该处理程序根据按下的鼠标按钮更改对象的颜色。 检查 ChangedButton 属性以确定按下了哪个按钮。

private void MouseButtonDownHandler(object sender, MouseButtonEventArgs e)
{
    Control src = e.Source as Control;

    if (src != null)
    {
        switch (e.ChangedButton)
        {
            case MouseButton.Left:
                src.Background = Brushes.Green;
                break;
            case MouseButton.Middle:
                src.Background = Brushes.Red;
                break;
            case MouseButton.Right:
                src.Background = Brushes.Yellow;
                break;
            case MouseButton.XButton1:
                src.Background = Brushes.Brown;
                break;
            case MouseButton.XButton2:
                src.Background = Brushes.Purple;
                break;
            default:
                break;
        }
    }
}

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

注解

类 Mouse 提供用于确定鼠标状态的其他属性和方法。

适用于

另请参阅