StylusPoint.Y Eigenschaft
Definition
Wichtig
Einige Informationen beziehen sich auf Vorabversionen, die vor dem Release ggf. grundlegend überarbeitet werden. Microsoft übernimmt hinsichtlich der hier bereitgestellten Informationen keine Gewährleistungen, seien sie ausdrücklich oder konkludent.
Ruft die y-Koordinate des StylusPoint ab oder legt diese fest.
public:
property double Y { double get(); void set(double value); };
public double Y { get; set; }
member this.Y : double with get, set
Public Property Y As Double
Eigenschaftswert
Die Y-Koordinate des StylusPoint.
Beispiele
Im folgenden Beispiel wird die Y -Eigenschaft für jede StylusPoint in einem StylusPointCollectionabgerufen. In diesem Beispiel wird davon ausgegangen, dass es einen TextBlock namens packetOutput
gibt.
private void WriteStylusPointValues(StylusPointCollection points)
{
StylusPointDescription pointsDescription = points.Description;
ReadOnlyCollection<StylusPointPropertyInfo> properties =
pointsDescription.GetStylusPointProperties();
// Write the name and value of each property in
// every stylus point.
StringWriter packetWriter = new StringWriter();
packetWriter.WriteLine("{0} stylus points", points.Count.ToString());
foreach (StylusPoint stylusPoint in points)
{
packetWriter.WriteLine("Stylus Point info");
packetWriter.WriteLine("X: {0}", stylusPoint.X.ToString());
packetWriter.WriteLine("Y: {0}", stylusPoint.Y.ToString());
packetWriter.WriteLine("Pressure: {0}", stylusPoint.PressureFactor.ToString());
// Get the property name and value for each StylusPoint.
// Note that this loop reports the X, Y, and pressure values differantly than
// getting their values above.
for (int i = 0; i < pointsDescription.PropertyCount; ++i)
{
StylusPointProperty currentProperty = properties[i];
// GetStylusPointPropertyName is defined below and returns the
// name of the property.
packetWriter.Write("{0}: ", GetStylusPointPropertyName(currentProperty));
packetWriter.WriteLine(stylusPoint.GetPropertyValue(currentProperty).ToString());
}
packetWriter.WriteLine();
}
packetOutput.Text = packetWriter.ToString();
}
Private Sub WriteStylusPointValues(ByVal points As StylusPointCollection)
Dim pointsDescription As StylusPointDescription = points.Description
Dim properties As ReadOnlyCollection(Of StylusPointPropertyInfo) = _
pointsDescription.GetStylusPointProperties()
' Write the name and value of each property in
' every stylus point.
Dim packetWriter As New StringWriter()
packetWriter.WriteLine("{0} stylus points", points.Count.ToString())
For Each stylusPoint As StylusPoint In points
packetWriter.WriteLine("Stylus Point info")
packetWriter.WriteLine("X: {0}", stylusPoint.X.ToString())
packetWriter.WriteLine("Y: {0}", stylusPoint.Y.ToString())
packetWriter.WriteLine("Pressure: {0}", stylusPoint.PressureFactor.ToString())
' Get the property name and value for each StylusPoint.
' Note that this loop reports the X, Y, and pressure values differantly than
' getting their values above.
For i As Integer = 0 To pointsDescription.PropertyCount - 1
Dim currentProperty As StylusPointProperty = properties(i)
' GetStylusPointPropertyName is defined below and returns the
' name of the property.
packetWriter.Write("{0}: ", GetStylusPointPropertyName(currentProperty))
packetWriter.WriteLine(stylusPoint.GetPropertyValue(currentProperty).ToString())
Next i
packetWriter.WriteLine()
Next stylusPoint
packetOutput.Text = packetWriter.ToString()
End Sub
// Use reflection to get the name of currentProperty.
private string GetStylusPointPropertyName(StylusPointProperty currentProperty)
{
Guid guid = currentProperty.Id;
// Iterate through the StylusPointProperties to find the StylusPointProperty
// that matches currentProperty, then return the name.
foreach (FieldInfo theFieldInfo
in typeof(StylusPointProperties).GetFields())
{
StylusPointProperty property = (StylusPointProperty) theFieldInfo.GetValue(currentProperty);
if (property.Id == guid)
{
return theFieldInfo.Name;
}
}
return "Not found";
}
' Use reflection to get the name of currentProperty.
Private Function GetStylusPointPropertyName(ByVal currentProperty As StylusPointProperty) As String
Dim guid As Guid = currentProperty.Id
' Iterate through the StylusPointProperties to find the StylusPointProperty
' that matches currentProperty, then return the name.
Dim theFieldInfo As FieldInfo
For Each theFieldInfo In GetType(StylusPointProperties).GetFields()
Dim pointProperty As StylusPointProperty = _
CType(theFieldInfo.GetValue(currentProperty), StylusPointProperty)
If pointProperty.Id = guid Then
Return theFieldInfo.Name
End If
Next theFieldInfo
Return "Not found"
End Function 'GetStylusPointPropertyName
Gilt für:
Arbeiten Sie mit uns auf GitHub zusammen
Die Quelle für diesen Inhalt finden Sie auf GitHub, wo Sie auch Issues und Pull Requests erstellen und überprüfen können. Weitere Informationen finden Sie in unserem Leitfaden für Mitwirkende.