Hello,
I'm trying to run an executable file from a python script. the executable is
"opcenum.exe".
OPCENUM.EXE
is an executable that is usually found on computers with OPC software;
such as OPC Servers or OPC Clients. The purpose of OPCENUM.EXE is
to provide an interface into the local
machine's Component Category Manager that can be accessed by remote OPC
clients over DCOM. OPCEnum.exe provides several useful methods
IOPCServerList::EnumClassesofCategory
- gets available OPC servers for a specified category of OPC server
I want to use IOPCServerList::EnumClassesofCategory but I am having some
trouble. currently I do the below:
import os
cmd = 'opcenum.exe/IOPCServerList/EnumClassesofCategory
63D5F432-CFE4-11d1-B2C8-0060083BA1FB'
fin,fout = os.popen4(cmd)
result = fout.read()
this doesn't work, and it hangs up on fout.read(). I'm do not understand the
syntax of the arguments in popen4, i.e., I'm using slashes to get to the
EnumClassesofCategory method, but should I use periods or what. The long number
at the end is the argument to EnumClassesofCategory, and is the component
category CLSID.
details are here: http://opcactivex.com/Support/General/OPCEnum/opcenum.html
how can I improve things here?
thanks,
Jeff
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