[cells-gtk-devel] hello-c with callback support for CMUCL

[Frank Buss]

> At the risk of sounding naive (heck, I am!) what do we mean 
> by "callback support" here?

Some C-functions require a function pointer, which is called from the
C-library. The callback mechanism allows to pass something like a pointer to
a Lisp function, which when called from C, the Lisp function is called, see
callbacks.lisp in hello-c and CL-Canvas (
http://www.frank-buss.de/lisp/canvas.html ) for an example.

-- 
Frank Buß, fb at frank-buss.de
http://www.frank-buss.de, http://www.it4-systems.de