StylusPoints Property
Gets or sets the collection of StylusPoint objects that make up the Stroke.
XAML |
<object ...> <object.StylusPoints> oneOrMoreStylusPoints <object.StylusPoints/> <object/> |
Scripting |
value = object.StylusPoints object.StylusPoints = value |
XAML Values
oneOrMoreStylusPoints | One or more StylusPoint object elements. |
Property Value
The collection of StylusPoint objects that make up the Stroke.
This property is read/write.
Remarks
Setting StylusPoints in XAML is not a typical scenario (usually you use this property to capture user input rather than prepopulating strokes) but it is possible. You could use this technique to place watermarks or guides on the ink canvas as actual strokes.
The XAML syntax for properties that use a StylusPointCollection is an example of an implicit collection syntax, where you can omit the StylusPointCollection object element. The <DoubleAnimationUsingKeyFrames.Strokes> property element is required for this collection syntax; StylusPoints is not the default collection property of a Stroke. You would include one or more StylusPoint object elements as child elements of the <DoubleAnimationUsingKeyFrames.Strokes> property element. For more information about XAML implicit collection syntax, see XAML Syntax Overview. (Explicitly including a StylusPointCollection object element is permissible XAML syntax, and might be useful if you intend to name the collection in XAML and manipulate its contents through script later.)
Examples
JavaScript |
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var agCtrl; var inkPresenter; // Corresponds to InkPresenter element in xaml var newStroke = null; // The Stroke variable we'll use here in mouse handlers var daWidth; var daHeight; function root_Loaded(sender, args) { // Get the html object which contains the Silverlight plug-in agCtrl = sender.GetHost(); inkPresenter = sender.findname("inkPresenterElement"); } // Capture mouse movement when the left button is pressed then create the stroke. function InkPresenterMouseDown(sender,args) { inkPresenter.CaptureMouse(); newStroke = agCtrl.content.createFromXaml('<Stroke/>'); // Get the DeviceType if(args.GetStylusInfo().deviceType == "Stylus") { var sps = args.GetStylusPoints(inkPresenter); SetStylusStrokeSize(sps); } // If the device type is not a stylus then use the default stroke height and width. else { daWidth = 3; daHeight = 3; } // Set the drawing attributes properties newStroke.DrawingAttributes.Width = daWidth; newStroke.DrawingAttributes.Height = daHeight; newStroke.DrawingAttributes.Color = "Blue"; newStroke.DrawingAttributes.OutlineColor = "Orange"; newStroke.StylusPoints.AddStylusPoints(args.GetStylusPoints(inkPresenter)); inkPresenter.Strokes.Add(newStroke); } // Add the new points to the Stroke we're working with function InkPresenterMouseMove(sender,args) { if (newStroke != null) { newStroke.StylusPoints.AddStylusPoints(args.GetStylusPoints(inkPresenter)); } } // Release the mouse function InkPresenterMouseUp(sender,args) { newStroke = null; } // Set the size of the stroke based on the initial pressureFactor of the stroke. function SetStylusStrokeSize(sps) { var p; // Set variable p to the first StylusPoint in the Stroke p = sps.getItem(0).pressureFactor; daWidth = p * 20.0; daHeight = p * 20.0; } |
Applies To
See Also
Ink Support In Microsoft Silverlight
StylusPointCollection
DrawingAttributes