Re: [Chicken-users] c-callbacks

[Robin Lee Powell]

On Fri, Aug 17, 2007 at 11:23:10PM +0200, Bastian Müller wrote:
> 
> so, I put the define-external in graphics.scm, where I do now:
>  (ode-space-collide space #f (location foobar))
> 
> and throws again:
> 
> Error: (location) bad argument type - locative can not refer to
> objects of this type: #<procedure (foobar data81 geom182 geom283)>

Is foobar defined with "define-external"?  It really needs to be.

> I'm using chicken 2.6, btw.

There's lots of versions of 2.6.  :)

Here's an actual code snippet of mine:

(define-external
  (handle_waiting (c-pointer object)
                  (c-pointer clientData))
  void
  (logger "In handle_waiting.\n")
  (status-update))

(define (status-setup)
  (logger "In status-setup.\n")
  ; Run the update right away.
  (status-update)
  (setCDKObjectWaiting selection-widget (location handle_waiting) #f))

-Robin

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