OutlineColor

Gets or sets the outline color of the associated stroke.

<object OutlineColor="colorString"  .../>
value = object.OutlineColor
object.OutlineColor = value

XAML Values

Value

Description

colorString

The Color for a SolidColorBrush expressed as an attribute string. This can be a named color, an RGB value, or an ScRGB value. RGB or ScRGB may also specify alpha information. See the "colorString Grammar" section in the Color reference topic.

Property Value

Type: Color

The outline color of the associated stroke.

This property is read/write. The default value is null.

Managed Equivalent

OutlineColor

Remarks

The outline color makes the rendered stroke two pixels wider in each direction.

You cannot specify a Brush object element such as LinearGradientBrush for this property value, by using property element syntax. You can only use XAML attribute syntax to set Color to a color string, as documented in the "colorString Grammar" section of the Color reference topic.

Setting this property in JavaScript also requires the colorString grammar to specify the value as a string, unless you set it to the value of another object's property that is also a Color. See the "Remarks" section in Color for additional information about the scripting usage of the Color object.

Example

The following Javascript events simulate three pen types (pen, marker and highlighter) by setting the Color, Height, OutlineColor, and Width properties of a DrawingAttributes object. A DrawingAttributes object is first created and then appended to the Stroke object. The DrawingAttributes properties are then set by one of the three events that simulate a pen type. The EraseCanvas event clears all the Strokes from the Canvas.

var agCtrl;
var inkPresenter; // Corresponds to InkPresenter element in XAML.
var newStroke = null; // The Stroke variable we'll use here in mouse handlers.
// DrawingAttributes variables.
var daWidth = 2;
var daHeight = 2;
var daColor = "Black";
var daOutlineColor = "Black";

function root_Loaded(sender, args) 
{
    // Get the HTML object that contains the Silverlight plug-in.
    agCtrl = sender.GetHost();
    inkPresenter = sender.findname("inkPresenterElement");
}

// Capture mouse movement when the left button is pressed and create the stroke.
function InkPresenterMouseDown(sender,args)
{
   inkPresenter.CaptureMouse();
   
   newStroke = agCtrl.content.createFromXaml('<Stroke/>');
   
   var da = agCtrl.content.CreateFromXaml('<DrawingAttributes/>');
   newStroke.DrawingAttributes = da;
   
   // Set the drawing attributes properties
   newStroke.DrawingAttributes.Width = daWidth;
   newStroke.DrawingAttributes.Height = daHeight;
   newStroke.DrawingAttributes.Color = daColor;
   newStroke.DrawingAttributes.OutlineColor = daOutlineColor;
   
   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;
   inkPresenter.ReleaseMouseCapture();
}

// Set the drawing attributes for a pen.
function SelectPen(sender, args)
{
  daWidth = 1;
  daHeight = 1;
  daColor = "Black";
  daOutlineColor = "Black";
}

// Set the drawing attributes for a marker.
function SelectMarker(sender, args)
{
  daWidth = 10;
  daHeight = 4;
  daColor = "Blue";
  daOutlineColor = "Blue";
}

// Set the drawing attributes for a highlighter.
function SelectHighlighter(sender, args)
{
  daWidth = 25;
  daHeight = 5;
  daColor = "Yellow";
  daOutlineColor = "Yellow";
}

// Erase all strokes from the canvas.
function EraseCanvas(sender, args)
{
  inkPresenter.Strokes.Clear();
}

The XAML sample below creates the canvas, the four buttons that are used to select the different pen types, and the Erase All feature that is simulated by the Javascript events in the previous example.

<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Loaded="root_Loaded"
        x:Name="root"
        Width="600" Height="400">
  <InkPresenter
    x:Name="inkPresenterElement" 
    Background="transparent" 
    Width="600" Height="400" 
    MouseLeftButtonDown="InkPresenterMouseDown" 
    MouseMove="InkPresenterMouseMove" 
    MouseLeftButtonUp="InkPresenterMouseUp"/>

<!-- Pen Button -->
  <Rectangle 
    Height="30" Width="125" 
    Canvas.Top="375" Canvas.Left="40" 
    Stroke="Gray" Fill="Black" StrokeThickness="1.5" 
    RadiusX="2" RadiusY="2" 
    Opacity="1.0"/>    
  <TextBlock 
    Height="21" Width="78" 
    Canvas.Top="380" Canvas.Left="71"
    Foreground="Gray"
    FontFamily="Verdana" FontSize="12">Select Pen</TextBlock>

  <Rectangle 
    Height="30" Width="125" 
    Canvas.Top="375" Canvas.Left="40" 
    x:Name="selectPen" MouseLeftButtonDown="SelectPen" 
    Stroke="Transparent" Fill="Transparent" StrokeThickness="1.5"  
    RadiusX="2" RadiusY="2" 
    Opacity="1.0"/>
    
<!-- Marker Button -->
  <Rectangle 
    Height="30" Width="125" 
    Canvas.Top="375" Canvas.Left="170" 
    Stroke="Gray" Fill="Black" StrokeThickness="1.5" 
    RadiusX="2" RadiusY="2" 
    Opacity="1.0"/>
    
  <TextBlock 
    Height="21" Width="78" 
    Canvas.Top="380" Canvas.Left="191"
    Foreground="Gray"
    FontFamily="Verdana" FontSize="12">Select Marker</TextBlock>

  <Rectangle 
    Height="30" Width="125" 
    Canvas.Top="375" Canvas.Left="170" 
    x:Name="selectMarker" MouseLeftButtonDown="SelectMarker" 
    Stroke="Transparent" Fill="Transparent" StrokeThickness="1.5"  
    RadiusX="2" RadiusY="2" 
    Opacity="1.0"/>
    
<!-- Highlighter Button -->
  <Rectangle 
    Height="30" Width="125" 
    Canvas.Top="375" Canvas.Left="300" 
    Stroke="Gray" Fill="Black" StrokeThickness="1.5" 
    RadiusX="2" RadiusY="2" 
    Opacity="1.0"/>
    
  <TextBlock 
    Height="21" Width="78" 
    Canvas.Top="380" Canvas.Left="310"
    Foreground="Gray"
    FontFamily="Verdana" FontSize="12">Select Highlighter</TextBlock>

  <Rectangle 
    Height="30" Width="125" 
    Canvas.Top="375" Canvas.Left="300" 
    x:Name="selectHighlighter" MouseLeftButtonDown="SelectHighlighter" 
    Stroke="Transparent" Fill="Transparent" StrokeThickness="1.5"  
    RadiusX="2" RadiusY="2" 
    Opacity="1.0"/>
    
<!-- Erase Canvas Button -->
  <Rectangle 
    Height="30" Width="125" 
    Canvas.Top="375" Canvas.Left="430" 
    Stroke="Gray" Fill="Black" StrokeThickness="1.5" 
    RadiusX="2" RadiusY="2" 
    Opacity="1.0"/>
    
  <TextBlock 
    Height="21" Width="78" 
    Canvas.Top="380" Canvas.Left="463"
    Foreground="Gray"
    FontFamily="Verdana" FontSize="12">Erase All</TextBlock>

  <Rectangle 
    Height="30" Width="125" 
    Canvas.Top="375" Canvas.Left="430" 
    x:Name="eraseCanvas" MouseLeftButtonDown="EraseCanvas" 
    Stroke="Transparent" Fill="Transparent" StrokeThickness="1.5"  
    RadiusX="2" RadiusY="2" 
    Opacity="1.0"/>
</Canvas>

Applies To

DrawingAttributes

See Also

Reference