On Fri, Aug 17, 2007 at 10:34:46PM +0200, Bastian Müller wrote: > > Finally, I tried to do the actual call. > First, I tried: > (ode-space-collide space (null-pointer) foobar) > and during the simulation I got an > Error: bad argument count - received -2 but expected 3: error in > error > graphics.scm: 76 ode-space-collide <--
So you'll want #f instead of (null-pointer), and you'll want (location foobar), and foobar needs to be define-external *in the file you set the callback from*. The "bad argument count" thing is exactly what happens when you don't use (location func) for setting up a callback; it happened to me a bunch whilst making cluck. -Robin -- http://www.digitalkingdom.org/~rlpowell/ *** http://www.lojban.org/ Reason #237 To Learn Lojban: "Homonyms: Their Grate!" Proud Supporter of the Singularity Institute - http://singinst.org/ _______________________________________________ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
