MouseButtonState 列舉

定義

命名空間:

System.Windows.Input

組件:

PresentationCore.dll

指定滑鼠按鈕的可能狀態。

public enum class MouseButtonState

public enum MouseButtonState

type MouseButtonState = 

Public Enum MouseButtonState

繼承

Object

ValueType

Enum

MouseButtonState

欄位

Pressed	1	按鈕已按下。
Released	0	按鈕已放開。

範例

下列範例顯示滑鼠事件處理程式，藉由檢查每個滑鼠按鈕的按鈕狀態，來判斷目前按下的按鈕。

private void MouseDownHandler(object sender, MouseEventArgs e)
{
    if (e.RightButton == MouseButtonState.Pressed)
    {
        MessageBox.Show("The Right Mouse Button is pressed");
    }

    if (e.LeftButton == MouseButtonState.Pressed)
    {
        MessageBox.Show("The Left Mouse Button is pressed");
    }

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

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

    if (e.XButton1 == MouseButtonState.Pressed)
    {
        MessageBox.Show("The XButton1 Mouse Button is pressed");
    }

    if (e.XButton2 == MouseButtonState.Pressed)
    {
        MessageBox.Show("The XButton2 Mouse Button is pressed");
    }
}

Private Sub MouseDownHandler(ByVal sender As Object, ByVal e As MouseEventArgs)
    If e.RightButton = MouseButtonState.Pressed Then
        MessageBox.Show("The Right Mouse Button is pressed")
    End If

    If e.LeftButton = MouseButtonState.Pressed Then
        MessageBox.Show("The Left Mouse Button is pressed")
    End If

    If e.MiddleButton = MouseButtonState.Pressed Then

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

    If e.XButton1 = MouseButtonState.Pressed Then
        MessageBox.Show("The XButton1 Mouse Button is pressed")
    End If

    If e.XButton2 = MouseButtonState.Pressed Then
        MessageBox.Show("The XButton2 Mouse Button is pressed")
    End If
End Sub

備註

列舉 MouseButtonState 會指定常數，這些常數會與滑鼠按鈕的狀態相互關聯。

另請參閱

• MouseEventArgs
• MouseAction