Code hinting with objects? how do they do it?

Question

Hello,
I am working with Flex Builder and it has a nice code completion and code hint option in it.
If i use the Tweener class you get code hinting of an object.
Example  : Tweener.addTween( { x:100, time:1, transition: "easeOutQuad"} );
Now within the brackets (object) you also get code hinting. I was wondering how to do this too?
Do i need to make a new public object?
public var myObj:Object = new Object();
public var myObj.time = 4;
public var myObj.xPos = 20;
MyCustomClass.customFunction( { ..the myObj properties..   });
Regards,
Chris

Answer 1

thanks for the reply! I did not know with the param options.
That is very nice! And i understand now how it works. The only thing i was wondering is, that
you can see what to enter with param for a function. But not within an object.
For example the caurina tweener.
Tweener.addTween( yourmovie, { x:100, there is no hinting or knowing what properties can be set here ..... } );
function doSomething(argument1:Boolean = true,  myNumber:Number  = 24):void {
doSomething( ..in here you get always code hinting because it are params,  { but not in an object ? } );
Regards,
Chris.