calldll & PyArg_ParseTuple strings
Scott McClellan
801d at my-deja.com
Sat Jul 3 16:12:29 EDT 1999
Hello,
I'm attempting to use Sam Rushing's calldll module to call a C function
in a dll, with the following prototype:
long __declspec(dllexport)func(long *x, long *y, long *z)
I expect the function to give certain values back in x, y, and z, but so
far have been unable to make that happen. Let's say that I have three
long integers in Python that I initialize as follows:
x=y=z=0L
My question is, in the following call from Python,
call_foreign_function(pFunc, 'lll', 'l', (<?>,<?>,<?>))
what should the tuple (<?>,<?>,<?>) contain? If I pass (x,y,z),
the Python interpreter (Idle in my case) crashes, and this is
understandable, since it results in the contents of x, y, and z being
used as addresses to write to. I've tried (id(x),id(y),id(z)), since
id() is supposed to return the address of a Python object - Python
didn't crash as before, but nothing was copied into x, y, and z, either.
Can anyone point me in the right direction?
Thanks,
Scott McClellan
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