Assigning object ID's in Box2D

[Kalis]

Does anyone know a way of quickly knowing the box 2 id's of each object created for reference. I am trying to get the alterable value of an object to correspond to the velocity of a box2d box but there doesn't seem to be an easy way to know the id's of any object created through box2d...

[LB]

If you attached an object to a body, you can use the expression to convert the fixed value of an active to a body ID.
BodyFixedID( "Phizix - Box2D", >Fixed Value of Object<)
or
BodyFixedID( "Phizix - Box2D v2.0.0", >Fixed Value<)
Depending on which version of Box2D you're using - the names are the same, though, and so is the usage, so it shouldn't matter.

[Kalis]

How do you attach a body to an object exactly?

[LB]

What? How have you been making the objects move relative to the bodies, then?

To attach an active to a body:
For Regular Box2D: Attached Objects -> Attach Object to Body
For Box2D v2.0.0: Attachments -> Attach Object to Body

[Kalis]

I've used the following: Start of frame ; (quick create body at object (Active), offset (0,0) Body type (2) Rotation (2) Killflag (1))

and (Set alterable value A of (Active) to LastbodyID (Box2D))

So when I have multiple actives they each have their own body created at their centre point. this works fine but now I want to set know the angular or linear velocity of an object and set it to the corresponding actives alterable value B.