Stylus.StylusButtonUp 附加事件

定义

在用户松开触笔上的其中一个按钮时发生。Occurs when the user releases one of the buttons on the stylus.

see AddStylusButtonUpHandler, and RemoveStylusButtonUpHandler
see AddStylusButtonUpHandler, and RemoveStylusButtonUpHandler
see AddStylusButtonUpHandler, and RemoveStylusButtonUpHandler

示例

下面的示例演示当用户释放触笔上的圆筒形按钮时, 如何复制选定的文本。The following example demonstrates how to copy the selected text when the user releases the barrel button on a stylus. 此示例假设有一个被调用TextBox textBox1的, 并且StylusButtonUp该事件已连接到事件处理程序。This example assumes that there is a TextBox called textBox1, and that the StylusButtonUp event is connected to the event handlers.

void textbox1_StylusButtonUp(object sender, StylusButtonEventArgs e)
{
    if (e.StylusButton.Guid != StylusPointProperties.BarrelButton.Id)
    {
        return;
    }

    if (textbox1.SelectedText == "")
    {
        return;
    }

    Clipboard.SetDataObject(textbox1.SelectedText);
}
Private Sub textbox1_StylusButtonUp(ByVal sender As Object, ByVal e As StylusButtonEventArgs) _
    Handles textbox1.StylusButtonUp

    If e.StylusButton.Guid <> StylusPointProperties.BarrelButton.Id Then
        Return
    End If

    If textbox1.SelectedText = "" Then
        Return
    End If

    Clipboard.SetDataObject(textbox1.SelectedText)

End Sub

注解

这是一个附加事件。This is an attached event. WPFWPF将附加事件作为路由事件实现。implements attached events as routed events. 附加事件本质上是一种XAMLXAML语言概念, 它用于引用处理的事件, 这些事件本身不是定义事件。An attached event is, fundamentally, a XAMLXAML language concept used to reference events that are handled on objects that do not, themselves, define events. WPFWPF进一步扩展了附加事件的功能, 从而允许它遍历路由。further expands an attached event's capabilities, allowing it to traverse a route. 附加事件在代码中没有直接处理语法;若要在代码中附加路由事件的处理程序, 请使用指定的 Add * 处理程序方法。Attached events do not have a direct handling syntax in code; to attach handlers for a routed event in code, use a designated Add*Handler method. 有关详细信息, 请参阅附加事件概述For details, see Attached Events Overview.

路由事件信息Routed Event Information

标识符字段Identifier field StylusButtonUpEvent
路由策略Routing strategy 冒泡Bubbling
委托Delegate StylusButtonEventHandler

适用于

另请参阅