StylusPointDescription Clase

Definición

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

Especifica las propiedades que se encuentran 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 StylusPointCollectionStylusPointDescription y obtiene la información de cada StylusPointPropertyInfo una de las StylusPointDescriptionde .

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 , StylusPointcontiene StylusPointDescription un StylusPointPropertyInfo objeto que especifica restricciones como los valores mínimo y máximo de la propiedad. Use los HasProperty métodos y GetPropertyInfo para comprobar si hay estas propiedades en .StylusPointDescription

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

Constructores

Nombre Description
StylusPointDescription()

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

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

Propiedades

Nombre Description
PropertyCount

Obtiene el número de propiedades de .StylusPointDescription

Métodos

Nombre Description
AreCompatible(StylusPointDescription, StylusPointDescription)

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

Determina si el objeto especificado es igual al objeto actual.

(Heredado de Object)
GetCommonDescription(StylusPointDescription, StylusPointDescription)

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

Actúa como la función hash predeterminada.

(Heredado de Object)
GetPropertyInfo(StylusPointProperty)

Obtiene para StylusPointPropertyInfo la propiedad especificada.
GetStylusPointProperties()

Obtiene todas las propiedades de .StylusPointDescription
GetType()

Obtiene el Type de la instancia actual.

(Heredado de Object)
HasProperty(StylusPointProperty)

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

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

Crea una copia superficial del Objectactual.

(Heredado de Object)
ToString()

Devuelve una cadena que representa el objeto actual.

(Heredado de Object)

Se aplica a