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  • Subject: (no subject)
  • From: "email@hidden" <email@hidden>
  • Date: Wed, 16 Jul 2003 17:59:54 -0700

My first post, being new to the list:

I'm trying to create a midi filter application: read the input, pass it on or don't according to what's being filtered. I've gotten the basic idea to work using C++ but want to use Java.
From what I've seen, virtual endpoints (destinationCreate) are "seen" by MIDIsetup.getSource(), ports (inputPortCreate) are not. I need to use the virtual variety.
I'm getting the following error:

java.lang.NullPointerException
at com.apple.audio.midi.MIDIDispatcher.readProc(MIDIDispatcher.java:93)

when I send. Same behavior in 1.3.1 and 1.41. Again, the virtual endpoints work fine in C++.
Any ideas?
Thanks in advance.
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