The ActionScript version of the loaded SWF file. The language version is specified by using the enumerations in the ActionScriptVersion class, such as ActionScriptVersion.ACTIONSCRIPT2 and ActionScriptVersion.ACTIONSCRIPT3.

Note: This property always has a value of either ActionScriptVersion.ACTIONSCRIPT2 or ActionScriptVersion.ACTIONSCRIPT3. ActionScript 1.0 and 2.0 are both reported as ActionScriptVersion.ACTIONSCRIPT2 (version 2.0). This property only distinguishes ActionScript 1.0 and 2.0 from ActionScript 3.0.

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When an external SWF file is loaded, all ActionScript 3.0 definitions contained in the loaded class are stored in the applicationDomain property.

All code in a SWF file is defined to exist in an application domain. The current application domain is where your main application runs. The system domain contains all application domains, including the current domain, which means that it contains all Flash Player classes.

All application domains, except the system domain, have an associated parent domain. The parent domain of your main application's applicationDomain is the system domain. Loaded classes are defined only when their parent doesn't already define them. You cannot override a loaded class definition with a newer definition.

For usage examples of application domains, see the "Client System Environment" chapter in Programming ActionScript 3.0.

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The number of bytes that are loaded for the media. When this number equals the value of bytesTotal, all of the bytes are loaded.

The number of compressed bytes in the entire media file.

Before the first progress event is dispatched by this LoaderInfo object's corresponding Loader object, bytesTotal is 0. After the first progress event from the Loader object, bytesTotal reflects the actual number of bytes to be downloaded.

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Expresses the trust relationship from content (child) to the Loader (parent). If the child has allowed the parent access, true; otherwise, false. This property is set to true if the child object has called the allowDomain() method to grant permission to the parent domain or if a cross-domain policy is loaded at the child domain that grants permission to the parent domain. If child and parent are in the same domain, this property is set to true.

For more information, see the "Flash Player Security" chapter in Programming ActionScript 3.0.

The loaded object associated with this LoaderInfo object.

The MIME type of the loaded file. The value is null if not enough of the file has loaded for Flash Player to determine the type. The following list gives the possible values:

• "application/x-shockwave-flash"
• "image/jpeg"
• "image/gif"
• "image/png"

The nominal frame rate, in frames per second, of the loaded SWF file. This number is often an integer, but need not be.

This value may differ from the actual frame rate in use. Flash Player only uses a single frame rate for all loaded SWF files at any one time, and this frame rate is determined by the nominal frame rate of the main SWF file. Also, Flash Player might not be able to achieve the main frame rate, depending on hardware, sound synchronization, and other factors.

The nominal height of the loaded file. This value might differ from the actual height at which the content is displayed, since the loaded content or its parent display objects might be scaled.

The Loader object associated with this LoaderInfo object. If this LoaderInfo object is the loaderInfo property of the instance of the main class of the SWF file, no Loader object is associated.

The URL of the SWF file that initiated the loading of the media described by this LoaderInfo object. For the instance of the main class of the SWF file, this URL is the same as the SWF file's own URL.

An object that contains name-value pairs that represent the parameters provided to the loaded SWF file.

You can use a for-in loop to extract all the names and values from the parameters object.

The two sources of parameters are: the query string in the URL of the main SWF file, and the value of the FlashVars HTML parameter (this affects only the main SWF file).

The parameters property replaces the ActionScript 1.0 and 2.0 technique of providing SWF file parameters as properties of the main timeline.

The value of the parameters property is null for Loader objects that contain SWF files that use ActionScript 1.0 or 2.0. It is only non-null for Loader objects that contain SWF files that use ActionScript 3.0.

Expresses the trust relationship from Loader (parent) to the content (child). If the parent has allowed the child access, true; otherwise, false. This property is set to true if the parent object called the allowDomain() method to grant permission to the child domain or if a cross-domain policy file is loaded at the parent domain granting permission to the child domain. If child and parent are in the same domain, this property is set to true.

For more information, see the "Flash Player Security" chapter in Programming ActionScript 3.0.

Expresses the domain relationship between the loader and the content: true if they have the same origin domain; false otherwise.

An EventDispatcher instance that can be used to exchange events across security boundaries. Even when the loader and the loadee do not trust one another, both can access sharedEvents.

The file format version of the loaded SWF file. The file format is specified using the enumerations in the SWFVersion class, such as SWFVersion.FLASH7 and SWFVersion.FLASH9.

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The URL of the media being loaded.

Before the first progress event is dispatched by this LoaderInfo object's corresponding Loader object, the value of the url property might reflect only the initial URL specified in the call to the load() method of the Loader object. After the first progress event, the url property reflects the media's final URL, after any redirects and relative URLs are resolved.

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The nominal width of the loaded content. This value might differ from the actual width at which the content is displayed, since the loaded content or its parent display objects might be scaled.

Dispatched when data has loaded successfully. The complete event is always dispatched after the init event.

This event has the following properties:

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Dispatched when a network request is made over HTTP and Flash Player can detect the HTTP status code.

This event has the following properties:

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Dispatched when the properties and methods of a loaded SWF file are accessible. A LoaderInfo object dispatches the init event when the following two conditions exist:

• All properties and methods associated with the loaded object and those associated with the LoaderInfo object are accessible.
• The constructors for all child objects have completed.

The init event always precedes the complete event.

This event has the following properties:

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Dispatched when an input or output error occurs that causes a load operation to fail.

This event has the following properties:

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Dispatched when a load operation starts.

This event has the following properties:

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Dispatched when data is received as the download operation progresses.

This event has the following properties:

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Dispatched by a LoaderInfo object whenever a loaded object is removed by using the unload() method of the Loader object, or when a second load is performed by the same Loader object and the original content is removed prior to the load beginning.

This event has the following properties:

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1. A property url is created, which is the location and name of the image.
2. The class constructor creates a Loader object named loader.
3. The loader object instantiates an event listener to ensure that the image loads properly.
4. The constructor creates a new instance of a URLRequest object, request, with url passed so that the file name and location are known.
5. The request object is then passed to the load() method of the loader object, which loads the image onto the display list.

Important: This example requires that you add a file named Image.gif in the same directory as the compiled SWF file. Use an image that has an area that fits within the dimensions of the main SWF file.

package {
    import flash.display.Loader;
    import flash.display.LoaderInfo;
    import flash.display.Sprite;
    import flash.events.*;
    import flash.net.URLRequest;

    public class LoaderInfoExample extends Sprite {
        private var url:String = "Image.gif";

        public function LoaderInfoExample() {
            var loader:Loader = new Loader();
            loader.contentLoaderInfo.addEventListener(Event.INIT, initHandler);
            loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
            var request:URLRequest = new URLRequest(url);
            loader.load(request);
            addChild(loader);
        }

        private function initHandler(event:Event):void {
            var loader:Loader = Loader(event.target.loader);
            var info:LoaderInfo = LoaderInfo(loader.contentLoaderInfo);
            trace("initHandler: loaderURL=" + info.loaderURL + " url=" + info.url);
        }

        private function ioErrorHandler(event:IOErrorEvent):void {
            trace("ioErrorHandler: " + event);
        }
    }
}