StylusPointPropertyInfo Class
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StylusPointPropertyInfo Class

 

Specifies the constraints of a property in a StylusPoint.

Namespace:   System.Windows.Input
Assembly:  PresentationCore (in PresentationCore.dll)

System.Object
  System.Windows.Input.StylusPointProperty
    System.Windows.Input.StylusPointPropertyInfo

public class StylusPointPropertyInfo : StylusPointProperty

NameDescription
System_CAPS_pubmethodStylusPointPropertyInfo(StylusPointProperty)

Initializes a new instance of the StylusPointPropertyInfo class.

System_CAPS_pubmethodStylusPointPropertyInfo(StylusPointProperty, Int32, Int32, StylusPointPropertyUnit, Single)

Initializes a new instance of the StylusPointPropertyInfo class using the specified values.

NameDescription
System_CAPS_pubpropertyId

Gets the GUID for the current StylusPointProperty.(Inherited from StylusPointProperty.)

System_CAPS_pubpropertyIsButton

Gets whether the StylusPointProperty represents a button on the stylus.(Inherited from StylusPointProperty.)

System_CAPS_pubpropertyMaximum

Gets the maximum value accepted for the StylusPoint property.

System_CAPS_pubpropertyMinimum

Gets the minimum value accepted for the StylusPoint property.

System_CAPS_pubpropertyResolution

Gets the scale that converts a StylusPoint property value into units.

System_CAPS_pubpropertyUnit

Gets the type of measurement that is used by StylusPoint property.

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from StylusPointProperty.)

The StylusPointPropertyInfo class inherits from the StylusPointProperty class and generates the Minimum, Maximum, Resolution, and Unit values used to define the properties of a StylusPoint. The validity of each property value varies depending on the manufacture of the digitizer and stylus.

The following example creates an StylusPointDescription object from a StylusPointCollection and gets the information for each StylusPointPropertyInfo in the 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();
}
// 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";
}

.NET Framework
Available since 3.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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