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SOUNDly TRAPped
- To: info-mcl@ministry.cambridge.apple.com
- Subject: SOUNDly TRAPped
- From: brand2@think.com (Niksa Radovic)
- Date: 29 Aug 1993 19:25:23 GMT
- Distribution: usa
- Newsgroups: comp.lang.lisp.mcl
- Organization: Thinking Machines Corporation CMNS Facility, Cambridge, MA (USA)
I, being new to both trap calls and sound manager routines, have a debugging
problem that may be simply my lack of experience in both areas and I beg your
forgiveness if I've forgotten to do/not done something obvious.
My problem is simple: I wish to play a 'snd ' resource (created with an older
version of MacREcorder or something) from within MCL 2.0. The code that I have
written does that fine -- once. If I try to do it 2 times or more in a row then
"anything goes" so to speak.
The code I wrote is:
(with-pstrs ((res_file "sound-test.rsrc"))
(#_openresfile :ptr res_file :word))
(rlet ((channel :pointer)
(procptr :pointer)) ;;; no call back is used for now
(#_sndnewchannel channel 0 0 procptr)
(#_sndplay :ptr (%get-ptr channel)
:ptr (#_getresource :ostype "snd " :word 12977 :ptr)
:word 0 :word)
(#_snddisposechannel :ptr (%get-ptr channel) :word 0 :word))
Well, there it is. Any comment/suggestions/help would be greatly appreciated.
- Dan Griffin
dang@cs.brandeis.edu