MouseButton 列舉

定義

命名空間:
System.Windows.Input
組件:
PresentationCore.dll

定義值，指定滑鼠裝置上的按鈕。

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

欄位

名稱 值 Description
Left 0

滑鼠左鍵。
Middle 1

滑鼠中鍵。
Right 2

右滑鼠按鈕。
XButton1 3

第一個延長滑鼠按鈕。
XButton2 4

第二個延長滑鼠按鍵。

範例

以下範例建立一個 MouseDown 事件處理器，利用 MouseButton 列舉來判斷按下了哪個按鈕。 根據按下的按鈕，觸發事件的控制點背景會改變。

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

適用於

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