Chong Kai Xiong kaixiong@codeleft.sg writes:

Hello list,

Is it possible to define Qt signals that have arguments of user-defined Lisp types e.g. structures?

I tried the signature "move(coord,coord)", where "coord" is a Lisp structure representing a pair of board coordinates but SBCL 1.1.14 throws the runtime error:

"No smoke type found for dynamic member arg type coord. Giving up."

Perhaps this could be done using a Smoke recognised type such as QPoint, but I would like to know the answer to the general question.

It would be possible to add such functionality, but it won't be efficient.