Re: MIDISysexSendRequest appropriate for MIDI SDS?
Re: MIDISysexSendRequest appropriate for MIDI SDS?
- Subject: Re: MIDISysexSendRequest appropriate for MIDI SDS?
- From: Brian Willoughby <email@hidden>
- Date: Sun, 15 Feb 2009 12:16:09 -0800
MIDISysexSendRequest is a structure - it doesn't 'do' anything. It
holds information about the System Exclusive data that you want to
send. It does not have any information about a receiving MIDI
endpoint, so it cannot handle any incoming data. All you will get
back from this request is a 'complete' flag when your message has been
sent in full, and your completionProc will be called with the
completionRefCon that you provided.
Brian Willoughby
Sound Consulting
On Feb 15, 2009, at 07:21, Fredrik wrote:
On Feb 14, 2009, at 8:09 PM, Fredrik wrote:
I have started to experiment with MIDI sample dump and would like
to know if MIDISysexSendRequest will work
since the SDS header seems to be specific for that purpose.
SDS messages are just sysex, so yes, you can use MIDISendSysex()
if you like.
Ok I see, I was thinking of the SDS header, which is in it self a
request to begin SDS transmission AFAIK.
You're talking about the "Dump Header" command, described here?
http://kilsti.com/midi_synth/docs/sds_2.txt
Format: Dump Header
F0 7E cc 01 ss ss ee ff ff ff gg gg gg hh hh hh ii ii ii jj F7
That starts with F0 and ends with F7, so it's still just a sysex
message.
Yes it is, but it´s also a request to start sending SDS data, I just
wasn´t sure what MIDISysexSendRequest would do in the background. The
SendRequest part of it´s name implies that it would perhaps add
something to the data that you supply.
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