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With event propagation you're dealing with three "phases" of an event (see Figure 2). Both KeyboardEvent and MouseEvent instances, for example, also have an updateAfterEvent() method. final statements correctly, they are ment for synchronous error chatching, which implies that Your above example takes into account xml file stored localy [on user's computer - not online]. Very scalable, reusable This tutorial will demonstrate the basics of ActionScript 3.0 using Flash Professional CS4.

Semicolon; The period of ActionScript In ActionScript, a semicolon (;) is much like a period in the English language. To set some text inside a dynamic text box in ActionScript, we use the .text property of the text box's instance name. Figure 3. what the user sees).

For those runtime versions, the error dialog appears even when a listener is registered for the uncaughtError event. In a more advanced program, this might be used to switch out the video or close the video after it is done playing. You'll learn how the new EventDispatcher class works—especially in relation to using mouse events. In ActionScript, as with many languages, we do this with the if keyword.

Instead, you have to use a little bit of trickery using the unique behavior of the stage to determine when the mouse is clicked on an object and then released outside private var loader:Loader = new Loader(); public function MyDocumentClass () { // 1: Listen for all errors in the application: loaderInfo.uncaughtErrorEvents.addEventListener(UncaughtErrorEvent.UNCAUGHT_ERROR, uncaughtErrorHandler); // 2: Listen for errors from the child swf Recall that you can listen for events during all event phases by calling addEventListener() twice, once with useCapture set to true, and then again with it set to false. You use it to register your listener functions.

When a user clicks a Button, for example, it dispatches a MouseEvent.CLICK event and when a user selects an item in a List, the List dispatches an Event.CHANGE event. They are one exception to the rule. Create a square movie clip on the screen. We can call it anything we want.

The time now is 04:45 PM. Oftentimes, you will want your program to make a decision based on a set of conditions. Tips for ActionScript 3.0 events If you're new to ActionScript 3.0, or very accustomed to ActionScript 2.0 events, you may find it difficult to get used to the new behaviors of As discussed in a previous lesson, ActionScript uses dot-syntax to separate an object name from its property or method.

Tracing the results to the Output panel will give you immediate feedback regarding the events received. removeEventListener(): Removes an event handler added to a listeners list using addEventListener. The BounceEvent class, as with ActionScript 2.0 classes, will be defined in an external ActionScript file. if(gameScore > 1000){ response_txt.text = "Congratulations, you passed 1,000 beating the game!"; } else { response_txt.text = "Sorry, you didn't reach score of 1,000 yet, try again."; } In this example,

In your properties inspector, type in name_txt in the instance name form. After identifying these 3 elements, you bring them all together using the addEventListener() method. Although the name IEventDispatcher may seem to imply that its main purpose is to send (or dispatch) event objects, the methods of this class are actually used much more frequently to Be sure your text is set for static text.

The easing signifies how the animation accelerates or decelerates. This is similar to the normal, core process in ActionScript 2.0 (not using EventDispatcher). Due to the strictly-typed nature of ActionScript 3.0, most of these example will not work just yet if you attempt them in Flash. Click on the layer named actions and open your Actions window.

ctrlKey true if the Control key is active; false if it is inactive. Events are tied to event listeners. In ActionScript 3.0, you register the name of the actual listener function. This is generally used for geotargeting purposes (showing New York real estate ads to someone in New York, for example) or showing certain ads based on specific sites visited (such as

A simple example From the Flash button tutorial. Event error handling is used for asynchronous Error catching on the other hand (well, not only, you got me.. ) Yes, i wish to detect the timeout.. The first step is to define the event handler (listener function). Useful if you want to stop an animation before it completes.

The syntax is the following: addEventListener(Type_of_event.Name_of_event, Name_of_function_YOU_define); Example: Let's say you have a button instance. MouseEvent.MOUSE_DOWN) in your custom event classes that correspond to the different types used with the event. This means that even if no event handlers have been assigned to a particular display object, it will still be targeted for an event when clicked, preventing anything below it from Flash bundles the documentation so you can see what events are associated with your classes.

Advanced Search Forum Flash ActionScript 2 (and Earlier) [AS3.0] Handling URLLoader's Error Event Results 1 to 4 of 4 Thread: [AS3.0] Handling URLLoader's Error Event Thread Tools Show Printable Version We would type this code as follows: function displayMessage(e:Event):void { response_txt.text = } Notice the response_txt.text = portion of the code. This method removes an event listener that matches the same definition used in addEventListener (up to the third parameter). As always, it is a good idea to become familiar with the event-related classes and event handling information available in the ActionScript 3.0 Language Reference.

In more complex situations, you can have your function return some data back to the section of code that called it. With ActionScript 2.0, there was no such thing as event propagation. Here are a few additional tips and precautions to keep in mind as you work with events in ActionScript 3.0: It's easy to stick with the ActionScript 2.0 mindset where an Notably, this exists on any DisplayObject's loaderInfo property @ DisplayObject.loaderInfo.uncaughtErrorEvents.

The class will be available to you throughout the rest of your Flash document. Flash will ignore the block code in the curly brackets and continue executing the program normally. share|improve this answer answered Oct 6 '11 at 6:36 Krasimir 7,92111735 thanks! Also, it is Adobe's policy that future versions of Flash Player will always run content compiled for older versions. –Peter Oct 6 '11 at 15:23 add a comment| up vote 0

Perform physical tasks with verbs. An object can react to an event using an event listener. These custom subclasses can be used in dispatching your own custom events and have properties of your own choosing. However, all of the code contained within a function needs a semicolon after each line, to end each statement.

You have mouse down and mouse up events for ActionScript 3.0, but nothing dealing with the release of an event outside of a previously clicked object. Every time you click on the button, the function will run and you will see your text appear. There are six easing types and four ways to show those easing types. Your credit card will not be charged until the product is shipped.