Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!ames!apple!well!cbm
From: cbm@well.UUCP (Chris Muir)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Using MIDI Manager from ThinkSpeed C. How? Help!
Message-ID: <13519@well.UUCP>
Date: 8 Sep 89 21:38:35 GMT
References: <336@castle.ed.ac.uk>
Reply-To: cbm@well.UUCP (Chris Muir)
Organization: Whole Earth 'Lectronic Link, Sausalito, CA
Lines: 37

In message <336@castle.ed.ac.uk>, nick@lfcs.ed.ac.uk (Nick Rothwell)
writes:
=So, what's wrong with something like
=this:
=
=        pascal OSErr MIDISignIn(clientID, refCon, icon, name)
=        OSType clientID;
=        long refCon;
=        Handle icon;
=        StringPtr name;
=        {
=            asm {
=                move.l #(((long)midiSignIn<<16) + midiToolNum), D0
=                dc.w 0xA800             /* sound manager trap. */
=            }
=        }

I can barely read C but, what about the parameters to this trap? Does
C push them in the order the trap wants to see them? Is StringPtr ==
Str255? Why can't you use the routine in the .h file that came with
the MM? 

pascal OSErr MIDISignIn(OSType clientID, long refCon, Handle icon, Str255 name)
	= {0x203C,4,midiToolNum,0xA800};

Have you called SndDispVersion first? I believe SndDispVersion
does some important initialization.





-- 
_______________________________________________________________________________
Chris Muir                             |   "There is no language in our lungs
{hplabs,pacbell,ucbvax,apple}          |    to tell the world just how we feel" 
!well!cbm                              |                         - A. Partridge