MouseEventArgs.MiddleButton 属性

定义

命名空间:

System.Windows.Input

程序集:

PresentationCore.dll

获取鼠标中键的当前状态。

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

属性值

MouseButtonState

鼠标中键的当前状态，为 Pressed 或 Released。 无默认值。

示例

如果 属性的状态 MiddleButton 为 Pressed，以下示例将打印一条消息。

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

注解

类 Mouse 提供用于确定鼠标状态的其他属性和方法。