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Silverlight 1.0 Full JavaScript Intellisense

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21 Dec 2007Ms-PL11 min read 31.9K   141   17  
An article about Silverlight 1.0 full JavaScript Intellisense
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<title>StylusInfo Object</title>
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<p><span class="betaboilerplate"><font color="gray" pointsize="8.5"
face="Verdana">[This topic is pre-release documentation and is
subject to change in future releases. Blank topics are included as
placeholders.]</font></span>
</p>

<h1><a name="silverlight_stylusinfo_object"></a>StylusInfo
Object</h1>

<div id="mainSection">
<div id="mainBody">
<p>Represents information about the state of the stylus.</p>

<h4>Syntax</h4>

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<th class="syntaxblocklanguage" nowrap="nowrap" style=
"width: 150px; background: #EEEEEE; vertical-align: top;">XAML</th>
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<div class="codesyntax">Cannot be used in XAML.</div>
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<th class="syntaxblocklanguage" nowrap="nowrap" style=
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Scripting</th>
<td class="syntaxblockcode" style="background:white;">
<div class="codesyntax">To create an object using scripting, see
<a href=
"m_silverlightcontrol_createfromxaml.htm">CreateFromXAML</a>.</div>
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<h4>Properties</h4>

<p><a href="p_stylusinfo_isinverted.htm">IsInverted</a>, <a href=
"p_dependencyobject_name.htm">Name</a>, <a href=
"p_stylusinfo_devicetype.htm">DeviceType</a></p>

<h4>Methods</h4>

<p><a href="m_dependencyobject_getvalue.htm">GetValue</a>, <a href=
"m_dependencyobject_setvalue.htm">SetValue</a></p>

<h4>Events</h4>

<h4>Example</h4>

<p>The following example uses the PressureFactor property to
determine the size of a stroke. The PressureFactor is obtained from
the first StylusPoint of each stroke, then the stroke Width and
Height is calculated by multiplying the PressureFactor by 20.</p>

<div class="snippetdistributor_codesnippet" id=
"pressure_ink_snip#PressureInk">
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<pre class="codeblock" style=
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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 plugin
    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('&lt;Stroke/&gt;');
   
   // 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;
}
</pre>
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<h4>See Also</h4>

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Written By
JustinAngel.Net, Senior .Net consultant
Israel Israel
Justin-Josef Angel is a C# Microsoft Most Valuable professional, a Senior .Net consultant in Israel with 4 years of .Net experience and has 8 years of Web experience.

Justin's been working this past year on two Enterprise sized Silverlight projects with his customers. During that time he's gained a real-insight into Silverlight's inner workings and how to integrate Silverlight into the real world of software development. Additionally, During that time he's developed a few well-known projects like the "Silverlight 1.0 Javascript Intellisense", "Silverlight 1.1 Hebrew & Arabic Languages support" and a few others you might know.

Justin is also a seasoned presenter with an impressive track-record of talking in front of thousands of people in Israel.

Justin owns the first .Net blog written in Hebrew - http://www.JustinAngel.Net .
And he also owns an additional blog with mixed Hebrew & English content - http://blogs.Microsoft.co.il/blogs/JustinAngel.

A full list of his articles (all 100+ of them) can be found at: http://www.JustinAngel.Net/#index




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