Dialog code question: What does "bc().addReadOnly(FL_OBJECT *)" do?

[R. Lahaye]

Hi,

In most Xforms (and Qt dialogs as well), I find this function:

     bc().addReadOnly(FL_OBJECT * ob)

I don't see any effect when commenting it out in the Xforms dialog code.
What is it supposed to do? Is it still useful and/or relevant?

Thanks,
Rob.