UIElement.IsMouseCaptured 属性

public:
 property bool IsMouseCaptured { bool get(); };

public bool IsMouseCaptured { get; }

member this.IsMouseCaptured : bool

Public ReadOnly Property IsMouseCaptured As Boolean

属性值

如果元素具有鼠标捕获，则为 true；否则为 false。 默认值为 false。

实现

示例

以下示例根据是否已为 元素捕获鼠标来打开或关闭鼠标捕获状态。

如果鼠标捕获位于其他位置，则鼠标捕获将设置为该元素。 如果元素具有鼠标捕获，则通过使用 null 输入调用 Mouse.Capture 来清除该元素。

    private void CaptureMouseCommandExecuted(object sender, ExecutedRoutedEventArgs e)
    {
        MessageBox.Show("Mouse Command");
        IInputElement target = Mouse.DirectlyOver;

        target = target as Control;
        if (target != null)
        {
            if (!target.IsMouseCaptured)
            {
                Mouse.Capture(target);
            }
            else
            {
                Mouse.Capture(null);
            }
        }
    }

Private Sub CaptureMouseCommandExecuted(ByVal sender As Object, ByVal e As ExecutedRoutedEventArgs)
    MessageBox.Show("Mouse Command")
    Dim target As IInputElement = Mouse.DirectlyOver

    target = TryCast(target, Control)
    If target IsNot Nothing Then
        If Not target.IsMouseCaptured Then
            Mouse.Capture(target)
        Else
            Mouse.Capture(Nothing)
        End If
    End If
End Sub

注解

鼠标捕获状态与进程内拖放操作相关。

依赖项属性信息

适用于

另请参阅

• CaptureMouse()
• GotMouseCapture
• LostMouseCapture