Virtual Endpoint Exception in callback
Virtual Endpoint Exception in callback
- Subject: Virtual Endpoint Exception in callback
- From: "email@hidden" <email@hidden>
- Date: Wed, 16 Jul 2003 18:08:09 -0700
(Sorry if this hits twice, I left the Subject: line out the first time.)
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 1.4.1. Again, the virtual endpoints work fine in C++.
Any ideas?
Thanks in advance.
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