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Topic: Problems with COM Scripting (Python) (Read 4914 times) |
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NeoAlus
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MIDI-OX Rules!
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Problems with COM Scripting (Python)
« on: Sep 22nd, 2002, 4:16am » |
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I have found two problems with accessing the COM interface from Python.
The first is that for some reason the event callback (OnMidiInput) sems to be called sporadically and obviously not frequently enough to receive all of the MIDI data which is being generated. (Watching for a certain event, I find it once in about 1/1000th of the time. Sometimes 4 or so in a row.)
The second problem is that calls to OutputMidiMsg() don't appear to send any data to MIDI-OX unless I set DivertMidiData to 1. (which means I'd have to script all the MIDI-routing I'm already doing in MIDI-OX)
I'm not sure if these problems only occur when accessing the COM API from Python or if they are more common.
-NeoAlus
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Jamie OConnell
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Re: Problems with COM Scripting (Python)
« Reply #1 on: Sep 22nd, 2002, 3:03pm » |
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OnMidiInput() should be called for each event in the stream. To verify this you can create a test loop that does nothing but send each item received in OnMidiInput() back to MIDI-OX using OutputMidiMsg(). You should see all data in the output monitor with 'COM' in the input device field.
There is a supplied example which does this:
MOXPythonDemo.py
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| « Last Edit: Sep 22nd, 2002, 3:06pm by Jamie OConnell » |
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--Jamie
Music is its own reward.
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cappy2112
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Re: Problems with COM Scripting (Python)
« Reply #2 on: Mar 21st, 2005, 12:10pm » |
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on Sep 22nd, 2002, 3:03pm, Jamie OConnell wrote:OnMidiInput() should be called for each event in the stream. To verify this you can create a test loop that does nothing but send each item received in OnMidiInput() back to MIDI-OX using OutputMidiMsg(). You should see all data in the output monitor with 'COM' in the input device field.
There is a supplied example which does this:
MOXPythonDemo.py |
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Jamie
In the MOXPythonDemo.py file, you have this comment
# Python Native example. This uses Python Win32 COM to generate a Sink
# This must be run under PythonWin.exe environment (or matbe IDLE), not Python.exe
# or Pythonw.exe -- there are known problems running Win32UI module.
I've run python scripts (not related to Midiox) which use win32ui, win32con win32com, using Python.exe. I'm wondering why your comment states that the MOXPythonDemo.py file has to be run from PythonWin.exe.
This was written about 2 years ago and several revs of Python have been released since then.
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Jamie OConnell
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Re: Problems with COM Scripting (Python)
« Reply #3 on: Mar 22nd, 2005, 8:30pm » |
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Quote: This was written about 2 years ago and several revs of Python have been released since then.
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Exactly. It could be well out of date. Let me know if it is.
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--Jamie
Music is its own reward.
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cappy2112
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Posts: 14
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Re: Problems with COM Scripting (Python)
« Reply #4 on: May 21st, 2006, 11:33pm » |
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Can I use any of the DLL's from Midiox thru Python (either with or without COM) to send/receive sysex?
Ideally, I'd like to supply just a python script (and any necessary Midiox dlls) to be able to send/receive sysex, without the Midiox GUI from showing.
Can this be done ?
if so, how ?
thanks
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