1000 ActionScript classes
registerClass (Object.registerClass method)
public static registerClass(name:String, theClass:Function) : Boolean
Associates a movie clip symbol with an ActionScript object class. If a symbol doesn't exist,
Flash creates an association between a string identifier and an object class.
When an instance of the specified movie clip symbol is placed on the Timeline, it is registered
to the class specified by the
theClass
parameter rather than to the class MovieClip.
When an instance of the specified movie clip symbol is created by using
MovieClip.attachMovie()
or
MovieClip.duplicateMovieClip()
, it is registered to the
class specified by
theClass
rather than to the MovieClip class. If
theClass
is
null
, this
method removes any ActionScript class definition associated with the specified movie clip
symbol or class identifier. For movie clip symbols, any existing instances of the movie clip
remain unchanged, but new instances of the symbol are associated with the default class
MovieClip.
If a symbol is already registered to a class, this method replaces it with the new registration.
When a movie clip instance is placed by the Timeline or created using
attachMovie()
or
duplicateMovieClip()
, ActionScript invokes the constructor for the appropriate class with
the keyword
this
pointing to the object. The constructor function is invoked with no
parameters.
If you use this method to register a movie clip with an ActionScript class other than
MovieClip, the movie clip symbol doesn't inherit the methods, properties, and events of the
built-in MovieClip class unless you include the MovieClip class in the prototype chain of the
new class. The following code creates a new ActionScript class called
theClass
that inherits
the properties of the MovieClip class:
theClass.prototype = new MovieClip();
Availability:
ActionScript 1.0; Flash Player 6 - If you are using ActionScript 2.0 classes, you
can use the ActionScript 2.0 Class field in the Linkage Properties or Symbol Properties dialog
box to associate an object with a class instead of using this method.
Parameters
name
:String
- String; the linkage identifier of the movie clip symbol or the string identifier
for the ActionScript class.
theClass
:Function
- A reference to the constructor function of the ActionScript class or
null
to unregister the symbol.
Summary of Contents for FLASH 8-ACTIONSCRIPT 2.0 LANGUAGE
Page 1: ...ActionScript 2 0 Language Reference ...
Page 1352: ...1352 ActionScript classes ...