Stylus.StylusDown Attached Event
Definition
Important
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Occurs when the user touches the tip of the stylus to the tablet.
see AddStylusDownHandler, and RemoveStylusDownHandlersee AddStylusDownHandler, and RemoveStylusDownHandlersee AddStylusDownHandler, and RemoveStylusDownHandlerExamples
The following example demonstrates how to record the coordinates of the stylus, even if the stylus leaves the bounds of a TextBox. This example assumes that there is a TextBox called textBox1, and that the StylusDown, StylusUp, and StylusMove events are connected to the event handlers.
void textbox1_StylusDown(object sender, StylusDownEventArgs e)
{
Stylus.Capture(textbox1);
}
void textbox1_StylusMove(object sender, StylusEventArgs e)
{
Point pos = e.GetPosition(textbox1);
textbox1.AppendText("X: " + pos.X + " Y: " + pos.Y + "\n");
}
void textbox1_StylusUp(object sender, StylusEventArgs e)
{
Stylus.Capture(textbox1, CaptureMode.None);
}
Private Sub textbox1_StylusDown(ByVal sender As Object, ByVal e As System.Windows.Input.StylusDownEventArgs) _
Handles textbox1.StylusDown
Stylus.Capture(textbox1)
End Sub
Private Sub textbox1_StylusMove(ByVal sender As Object, ByVal e As StylusEventArgs) _
Handles textbox1.StylusMove
Dim pos As Point = e.GetPosition(textbox1)
textbox1.AppendText("X: " & pos.X.ToString() & " Y: " & pos.Y.ToString() & vbLf)
End Sub
Private Sub textbox1_StylusUp(ByVal sender As Object, ByVal e As StylusEventArgs) _
Handles textbox1.StylusUp
Stylus.Capture(textbox1, CaptureMode.None)
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
| Item | Value |
|---|---|
| Identifier field | StylusDownEvent |
| Routing strategy | Bubbling |
| Delegate | StylusDownEventHandler |
