[Chicken-users] assigning scheme object to foreign pointer

[pluijzer]

Hello everybody.

I am using a C-library that lets you assign user data to objects via a void 
pointer.
I would like to assign a scheme object to this pointer, but as I understand I 
cannot use
'object->pointer' for this, as the garbage collector might move the object.

Is there another way to accomplish this, maybe by telling the gc not to move 
the object?

thank you very much in advance,
Pluijzer