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Re: More MIDI sysex problems
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Re: More MIDI sysex problems


  • Subject: Re: More MIDI sysex problems
  • From: Stephen Davis <email@hidden>
  • Date: Wed, 2 Jan 2002 11:37:49 -0800

On Wednesday, January 2, 2002, at 01:39 AM, Kurt Revis wrote:

I'm finding that MIDISendSysex() won't send anything to a virtual destination endpoint. It works fine if I send to an endpoint belonging to a USB device, though (as expected).

Has anyone else run into this problem, or gotten this to work?

Ah, I was wondering why my sysex packets were not showing up in MIDI Monitor. :-)

Also: Should sysex be sent only through MIDISendSysex, or am I allowed to put it in a MIDIPacket and use MIDISend() just like all other messages? I'm finding that if I do the latter, the sysex data does go to virtual sources as it should. However, when sending to a MIDIMAN 2x2, this causes something to freak out and hang the whole machine for 8 seconds, and the message never gets sent. (And after that happens, even MIDISendSysex() doesn't work until I quit all MIDI apps and start again!) I don't know if this is a CoreMIDI problem, or a MIDIMAN driver problem, or what, although I suspect the driver...

I gave up on MIDISendSysex() and just use MIDISend() -- seems to work just fine (mostly). I have a MIDISPORT 1x1 and it seems to work for that device but I have had a bunch of cases where the MIDIServer process will die on me and I can't connect to it again. Quitting my app and MIDI Monitor seems to make things better, as you pointed out. I don't know what the culprit is.

BTW, MIDI Monitor is way cool. Thanks a ton!

stephen


References: 
 >More MIDI sysex problems (From: Kurt Revis <email@hidden>)

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