MouseButton 枚举

定义

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

定义在鼠标设备上指定按钮的值。

public enum class MouseButton
public enum MouseButton
type MouseButton = 
Public Enum MouseButton
继承
Object
ValueType
Enum
MouseButton

字段

名称 值 说明
Left 0

鼠标左键。
Middle 1

鼠标中间按钮。
Right 2

鼠标右键。
XButton1 3

第一个扩展鼠标按钮。
XButton2 4

第二个扩展鼠标按钮。

示例

以下示例创建一个 MouseDown 事件处理程序，该事件处理程序使用 MouseButton 枚举来确定按下了哪个按钮。 根据按下的按钮，触发事件的控件的背景将发生更改。

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

适用于

另请参阅