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Howto helloWorld Moonlight ff3

This howto shows how to develop our first hello world Moonlight 1.0 application.

The first thing you will need is the Silverlight.js file.

A Moonlight user interface is defined using XAML.XAML is just XML and we are going to use a Canvas that contains a TextBlock:

Create MyCanvas.xaml file:

        width="640" Height="480"
        <TextBlock Width="195" Height="42" Canvas.Left="28" Canvas.Top="35"
                   Text="Click Here!!!!" x:Name="entryHello" />

this XAML contains two components. the Canvas which defines the overall drawing surface and the second component is the TextBlock element which renders the text “Click Here!!!”.

Create createMoonlight.js file:

var slControl;
var entryHello;
function createSilverlight()
                source: "MyCanvas.xaml",
                parentElement: document.getElementById("slControl"),
                id: "slControlObj",
                properties: {
                                width: "100%",
                                height: "100%",
                                version: "1.0"
                            events: {
                                onLoad: load
function load(control,userContext,rootElement)
        slControl = control;
        entryHello = slControl.content.findName("entryHello");
function entryOnClick(sender,args)
        entryHello.Text = "Hello World Moonlight!!!!";

The createSilverlight javascript function creates the object and defines some properties like source,parentElement,id and events. the event onLoad defines a load event handler. the event handler function locates the TextBlock and adds and event listener to its listener collection.

Create helloWorld.htm html file to test Moonlight:

        <script src="Silverlight.js"></script>
        <script src="createMoonlight.js"></script>
          .slControl {
                height: 480px;
                width: 640px;
                border: 1px dotted black;
        <title>Hello @carlitos castro Moonlight/Silverlight Hello World!!!!</title>
    Moonlight/Silverlight Sample:<br>
    <div id="slControl" class="slControl">

Open your Web Browser and open your new helloWorld.htm html file, later clic on text.