RawStylusInput.StylusDeviceId Egenskap
Definition
Viktigt
En del information gäller för förhandsversionen av en produkt och kan komma att ändras avsevärt innan produkten blir allmänt tillgänglig. Microsoft lämnar inga garantier, uttryckliga eller underförstådda, avseende informationen som visas här.
Hämtar identifieraren för den aktuella pennanheten.
public:
property int StylusDeviceId { int get(); };
public int StylusDeviceId { get; }
member this.StylusDeviceId : int
Public ReadOnly Property StylusDeviceId As Integer
Egenskapsvärde
Identifieraren för den aktuella StylusDevice.
Exempel
I följande exempel ser du till att de pennapunkter som samlas in kommer från samma StylusDevice. Det här exemplet är en del av det större exemplet i klassöversikten RawStylusInput .
// Collect the points as the user draws the stroke.
protected override void OnStylusDown(RawStylusInput rawStylusInput)
{
// If points is not null, there is already a stroke taking place
// on the digitizer, so don't create a new StylusPointsCollection.
if (points == null)
{
points = new StylusPointCollection(rawStylusInput.GetStylusPoints().Description);
points.Add(rawStylusInput.GetStylusPoints());
currentStylus = rawStylusInput.StylusDeviceId;
}
}
// Collect the points as the user draws the stroke.
protected override void OnStylusMove(RawStylusInput rawStylusInput)
{
// Check whether the stylus that started the stroke is the same, and
// that the element hasn't lost focus since the stroke began.
if (points != null && currentStylus == rawStylusInput.StylusDeviceId)
{
points.Add(rawStylusInput.GetStylusPoints());
}
}
// Collect the points as the user draws the stroke.
protected override void OnStylusUp(RawStylusInput rawStylusInput)
{
// Check whether the stylus that started the stroke is the same, and
// that the element hasn't lost focus since the stroke began.
if (points != null && currentStylus == rawStylusInput.StylusDeviceId)
{
points.Add(rawStylusInput.GetStylusPoints());
// Subscribe to the OnStylusUpProcessed method.
rawStylusInput.NotifyWhenProcessed(points);
}
points = null;
currentStylus = 0;
}
' Collect the points as the user draws the stroke.
Protected Overrides Sub OnStylusDown(ByVal rawStylusInput As RawStylusInput)
' If points is not null, there is already a stroke taking place
' on the digitizer, so don't create a new StylusPointsCollection.
If points Is Nothing Then
points = New StylusPointCollection(rawStylusInput.GetStylusPoints().Description)
points.Add(rawStylusInput.GetStylusPoints())
currentStylus = rawStylusInput.StylusDeviceId
End If
End Sub
' Collect the points as the user draws the stroke.
Protected Overrides Sub OnStylusMove(ByVal rawStylusInput As RawStylusInput)
' Check whether the stylus that started the stroke is the same, and
' that the element hasn't lost focus since the stroke began.
If Not (points Is Nothing) AndAlso currentStylus = rawStylusInput.StylusDeviceId Then
points.Add(rawStylusInput.GetStylusPoints())
End If
End Sub
' Collect the points as the user draws the stroke.
Protected Overrides Sub OnStylusUp(ByVal rawStylusInput As RawStylusInput)
' Check whether the stylus that started the stroke is the same, and
' that the element hasn't lost focus since the stroke began.
If Not (points Is Nothing) AndAlso currentStylus = rawStylusInput.StylusDeviceId Then
points.Add(rawStylusInput.GetStylusPoints())
' Subscribe to the OnStylusUpProcessed method.
rawStylusInput.NotifyWhenProcessed(points)
End If
points = Nothing
currentStylus = 0
End Sub