Markus Zolliker
da15df076a
- before some chamges in the gerrit pipline Change-Id: I33eb2d75f83345a7039d0fb709e66defefb1c3e0
67 lines
2.5 KiB
Python
67 lines
2.5 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# *****************************************************************************
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc.,
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# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# Module authors:
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# Markus Zolliker <markus.zolliker@psi.ch>
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# *****************************************************************************
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import threading
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try:
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import pythoncom
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import win32com.client
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except ImportError:
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print("This Module only works with a pythoncom module on a MS Windows OS")
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raise
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class Error(Exception):
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pass
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class QDevice:
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def __init__(self, classid):
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self.threadlocal = threading.local()
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self.classid = classid
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def send(self, command):
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try:
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mvu = self.threadlocal.mvu
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except AttributeError:
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pythoncom.CoInitialize()
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mvu = win32com.client.Dispatch(self.classid)
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self.threadlocal.mvu = mvu
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args = [
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win32com.client.VARIANT(pythoncom.VT_BYREF | pythoncom.VT_BSTR, command),
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win32com.client.VARIANT(pythoncom.VT_BYREF | pythoncom.VT_BSTR, ""), # reply
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win32com.client.VARIANT(pythoncom.VT_BYREF | pythoncom.VT_BSTR, ""), # error
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win32com.client.VARIANT(pythoncom.VT_BYREF | pythoncom.VT_I4, 0), # ?
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win32com.client.VARIANT(pythoncom.VT_BYREF | pythoncom.VT_I4, 0)] # ?
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err = mvu.SendPpmsCommand(*args)
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# win32com does invert the order of results!
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if err == 0:
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# print '<', args[3].value
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return args[3].value
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if err == 1:
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# print '<done'
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return "OK"
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raise Error('%s on cmd "%s" %s' % (args[2].value.replace('\n', ' '), command,
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getattr(args[2], 'value', 'noreply')))
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if __name__ == "__main__": # test only
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print(QDevice('QD.MULTIVU.PPMS.1').send('LEVEL?'))
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