MouseEventArgs.MiddleButton 屬性

定義

命名空間:

System.Windows.Input

組件:

PresentationCore.dll

取得滑鼠中鍵的目前狀態。

public:
 property System::Windows::Input::MouseButtonState MiddleButton { System::Windows::Input::MouseButtonState get(); };

public System.Windows.Input.MouseButtonState MiddleButton { get; }

member this.MiddleButton : System.Windows.Input.MouseButtonState

Public ReadOnly Property MiddleButton As MouseButtonState

屬性值

MouseButtonState

滑鼠中鍵的目前狀態，可能是 Pressed 或 Released。 沒有任何預設值。

範例

如果 屬性的狀態 MiddleButton 為 Pressed，下列範例會列印訊息。

if (e.MiddleButton == MouseButtonState.Pressed)
{

    MessageBox.Show("The Middle Mouse Button is pressed");
}

If e.MiddleButton = MouseButtonState.Pressed Then

    MessageBox.Show("The Middle Mouse Button is pressed")
End If

備註

類別 Mouse 提供用於判斷滑鼠狀態的其他屬性和方法。