Stylus.StylusInRange 附加事件

定义

在触笔进入绘图板范围时发生。Occurs when the stylus comes within range of the tablet.

see AddStylusInRangeHandler, and RemoveStylusInRangeHandler
see AddStylusInRangeHandler, and RemoveStylusInRangeHandler
see AddStylusInRangeHandler, and RemoveStylusInRangeHandler

示例

下面的示例演示如何将 InkCanvasEditingMode 属性设置为在触笔反转时 EraseByStrokeThe following example demonstrates how to set the EditingMode property of an InkCanvas to EraseByStroke when the stylus is inverted. 此示例假定存在一个名为 inkCanvas1 InkCanvasStylusInRange 事件连接到事件处理程序。This example assumes that there is an InkCanvas called inkCanvas1 and that the StylusInRange event is connected to the event handlers. 若要查看光标更改,请在 inkCanvas1上将 UseCustomCursor 属性设置为 trueTo see the cursor change, set the UseCustomCursor property to true on inkCanvas1.

void inkCanvas1_StylusInRange(object sender, StylusEventArgs e)
{
    if (e.StylusDevice.Inverted == true)
    {
        inkCanvas1.EditingMode = InkCanvasEditingMode.EraseByStroke;
        inkCanvas1.Cursor = System.Windows.Input.Cursors.Hand;
    }
    else
    {
        inkCanvas1.EditingMode = InkCanvasEditingMode.Ink;
        inkCanvas1.Cursor = System.Windows.Input.Cursors.Pen;
    }
}
Private Sub inkCanvas1_StylusInRange(ByVal sender As Object, ByVal e As StylusEventArgs) _
    Handles inkCanvas1.StylusInRange

    If e.StylusDevice.Inverted = True Then
        inkCanvas1.EditingMode = InkCanvasEditingMode.EraseByStroke
        inkCanvas1.Cursor = System.Windows.Input.Cursors.Hand
    Else
        inkCanvas1.EditingMode = InkCanvasEditingMode.Ink
        inkCanvas1.Cursor = System.Windows.Input.Cursors.Pen
    End If

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,而这些事件本身并不定义事件。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 StylusInRangeEvent
路由策略Routing strategy 冒泡Bubbling
委托Delegate StylusEventHandler

适用于

另请参阅