Stylus.PreviewStylusInAirMove Attached Event
Definition
Important
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Occurs if the stylus moves while it is within range of (but not touching) the tablet.
see AddPreviewStylusInAirMoveHandler, and RemovePreviewStylusInAirMoveHandlersee AddPreviewStylusInAirMoveHandler, and RemovePreviewStylusInAirMoveHandlersee AddPreviewStylusInAirMoveHandler, and RemovePreviewStylusInAirMoveHandlerExamples
The following example demonstrates how to determine which element the stylus is positioned over. This example assumes that there is a TextBox called textBox1, and that the PreviewStylusInAirMove event is connected to the event handler.
void Window1_PreviewStylusInAirMove(object sender, StylusEventArgs e)
{
textbox1.AppendText(Stylus.DirectlyOver.ToString() + "\n");
}
Private Sub Window1_PreviewStylusInAirMove(ByVal sender As Object, _
ByVal e As StylusEventArgs) Handles Me.PreviewStylusInAirMove
Dim element As Object
element = CType(Stylus.DirectlyOver, Object)
textbox1.AppendText(element.ToString() & vbLf)
End Sub
Remarks
This is an attached event. WPF implements attached events as routed events. An attached event is, fundamentally, a XAML language concept used to reference events that are handled on objects that do not, themselves, define events. WPF further expands an attached event's capabilities, allowing it to traverse a route. 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. For details, see Attached Events Overview.
Routed Event Information
| Identifier field | PreviewStylusInAirMoveEvent |
| Routing strategy | Tunneling |
| Delegate | StylusEventHandler |
