Properties

Changing properties

As you learned during previous lessons all Objects have predefined set of properties or attributes. When instance of object is created those properties receive values. By default they are the same as their counterpart values of the object in the Library. For example if you drag the mvBall from library to the stage at this very moment it will have _width =100px and _height = 100 px if those are dimensions of their "host" symbol. Later you may change the size of the instance by using Resize Tool or by changing the values in the Properties inspector.

In most situations instance properties may be also be changed programmatically by using the code. All you need – only to give the instance a name and refer to it properly.

As we mentioned before – Movie Symbols, Buttons, Textboxes (Input and Dynamic) have properties, which may be referred from the code.

Those kinds of objects are intrinsic to Flash and appear for you ready to use when you design your application. If you for example created a symbol mvBall, drag it on the stage and assign it an instance name "ball1" you need also to keep in mind that your symbol inherited from generic MovieClip object from Flash.

In Flash Help you may find more about objects. Hit F1 to invoke help and look for MovieClip, Button and TextField objects in the Action Script Dictionary.

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