StylusPointProperty 类
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
表示存储在 StylusPoint 中的属性。
public ref class StylusPointProperty
public class StylusPointProperty
type StylusPointProperty = class
Public Class StylusPointProperty
- 继承
-
StylusPointProperty
- 派生
示例
以下示例从 StylusPointCollection 创建 StylusPointDescription 对象,并获取 中StylusPointDescription每个 StylusPointPropertyInfo 的信息。
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
注解
表示 StylusPointProperty 中的 StylusPoint 属性,例如 (x、y) 坐标、压力等。 可以从 类继承 StylusPointProperty ,以自定义为每个属性存储的信息。 Windows Presentation Framework 附带 StylusPointPropertyInfo 继承自 StylusPointProperty 的 类,并指定每个属性使用的最小值和最大值、分辨率和单位。
构造函数
StylusPointProperty(Guid, Boolean) |
使用指定的 GUID 初始化 StylusPointProperty 类的新实例。 |
StylusPointProperty(StylusPointProperty) |
初始化 StylusPointProperty 类的新实例,通过复制指定 StylusPointProperty。 |
属性
Id |
获取当前 StylusPointProperty 的 GUID。 |
IsButton |
获取 StylusPointProperty 是否表示触笔上的按钮。 |
方法
Equals(Object) |
确定指定对象是否等于当前对象。 (继承自 Object) |
GetHashCode() |
作为默认哈希函数。 (继承自 Object) |
GetType() |
获取当前实例的 Type。 (继承自 Object) |
MemberwiseClone() |
创建当前 Object 的浅表副本。 (继承自 Object) |
ToString() |
返回表示当前对象的字符串。 |