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StylusPointDescription Clase

  • Referencia

Definición

Espacio de nombres:
System.Windows.Input
Ensamblado:
PresentationCore.dll

Especifica las propiedades que están en StylusPoint.

public ref class StylusPointDescription
public class StylusPointDescription
type StylusPointDescription = class
Public Class StylusPointDescription
Herencia
Object
StylusPointDescription

Ejemplos

En el ejemplo siguiente se obtiene para StylusPointDescription y StylusPointCollection obtiene la información de cada StylusPointPropertyInfo en .StylusPointDescription

private void WriteDescriptionInfo(StylusPointCollection points)
{
    StylusPointDescription pointsDescription = points.Description;
    ReadOnlyCollection<StylusPointPropertyInfo> properties = 
        pointsDescription.GetStylusPointProperties();

    StringWriter descriptionStringWriter = new StringWriter();
    descriptionStringWriter.Write("Property Count:{0}", pointsDescription.PropertyCount.ToString());
    
    foreach (StylusPointPropertyInfo property in properties)
    {
        // GetStylusPointPropertyName is defined below and returns the
        // name of the property.
        descriptionStringWriter.Write("name = {0}", GetStylusPointPropertyName(property).ToString());
        descriptionStringWriter.WriteLine("  Guid = {0}", property.Id.ToString());
        descriptionStringWriter.Write("  IsButton = {0}", property.IsButton.ToString());
        descriptionStringWriter.Write("  Min = {0}", property.Minimum.ToString());
        descriptionStringWriter.Write("  Max = {0}", property.Maximum.ToString());
        descriptionStringWriter.Write("  Unit = {0}", property.Unit.ToString());
        descriptionStringWriter.WriteLine("  Res {0}", property.Resolution.ToString());
    }

    descriptionOutput.Text = descriptionStringWriter.ToString();
}

Private Sub WriteDescriptionInfo(ByVal points As StylusPointCollection) 

    Dim pointsDescription As StylusPointDescription = points.Description

    Dim properties As ReadOnlyCollection(Of StylusPointPropertyInfo) = _
        pointsDescription.GetStylusPointProperties()

    Dim descriptionStringWriter As New StringWriter
    descriptionStringWriter.Write("Property Count:{0}", pointsDescription.PropertyCount.ToString())
    
    Dim pointProperty As StylusPointPropertyInfo
    For Each pointProperty In properties

        ' GetStylusPointPropertyName is defined below and returns the
        ' name of the property.
        descriptionStringWriter.Write("name = {0}", GetStylusPointPropertyName(pointProperty).ToString())
        descriptionStringWriter.WriteLine("  Guid = {0}", pointProperty.Id.ToString())
        descriptionStringWriter.Write("  IsButton = {0}", pointProperty.IsButton.ToString())
        descriptionStringWriter.Write("  Min = {0}", pointProperty.Minimum.ToString())
        descriptionStringWriter.Write("  Max = {0}", pointProperty.Maximum.ToString())
        descriptionStringWriter.Write("  Unit = {0}", pointProperty.Unit.ToString())
        descriptionStringWriter.WriteLine("  Res {0}", pointProperty.Resolution.ToString())

    Next pointProperty

    descriptionOutput.Text = descriptionStringWriter.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

Comentarios

Un StylusPointDescription especifica qué propiedades están asociadas a .StylusPoint Para cada propiedad de , StylusPointStylusPointDescription contiene un StylusPointPropertyInfo objeto que especifica restricciones como los valores mínimo y máximo de la propiedad. Use los HasProperty métodos y GetPropertyInfo para comprobar estas propiedades en .StylusPointDescription

Todos los StylusPoint objetos de un StylusPointCollection objeto deben compartir el mismo StylusPointDescription. Si intenta agregar un StylusPoint objeto a que StylusPointCollection tiene una excepción diferente StylusPointDescription, se producirá una excepción.

Constructores

StylusPointDescription()

Inicializa una nueva instancia de la clase StylusPointDescription.
StylusPointDescription(IEnumerable<StylusPointPropertyInfo>)

Inicializa una nueva instancia de la clase StylusPointDescription con los objetos StylusPointPropertyInfo especificados.

Propiedades

PropertyCount

Obtiene el número de propiedades de StylusPointDescription.

Métodos

AreCompatible(StylusPointDescription, StylusPointDescription)

Devuelve un valor que indica si los objetos StylusPointDescription especificados son idénticos.
Equals(Object)

Determina si el objeto especificado es igual que el objeto actual.

(Heredado de Object)
GetCommonDescription(StylusPointDescription, StylusPointDescription)

Devuelve la intersección de los objetos StylusPointDescription especificados.
GetHashCode()

Sirve como la función hash predeterminada.

(Heredado de Object)
GetPropertyInfo(StylusPointProperty)

Obtiene la instancia de StylusPointPropertyInfo de la propiedad especificada.
GetStylusPointProperties()

Obtiene todas las propiedades del objeto StylusPointDescription.
GetType()

Obtiene el Type de la instancia actual.

(Heredado de Object)
HasProperty(StylusPointProperty)

Devuelve un valor que indica si el objeto StylusPointDescription actual tiene una propiedad específica.
IsSubsetOf(StylusPointDescription)

Devuelve un valor que indica si el objeto StylusPointDescription actual es un subconjunto del objeto StylusPointDescription especificado.
MemberwiseClone()

Crea una copia superficial del Object actual.

(Heredado de Object)
ToString()

Devuelve una cadena que representa el objeto actual.

(Heredado de Object)

Se aplica a