ctypes calling delphi dll

[Thomas Heller]

Brian Elmegaard <brian at rk-speed.rugby.dk> writes:

> Brian Elmegaard <brian at rk-speed.rugby.dk> writes:
> 
> > Thomas Heller <theller at python.net> writes:
> > 
> > > and it seems to work. It prints 'R11'. Is this what you expected?
> > 
> > Yep. Thanks a lot for the help.
> 
> And now I got it all working, but have written the code below in the
> best possible way? I don't think it is much easier to read than the
> C-code example, I am copying.

If you are using ctypes, you're basically 'programming in C'.
It is up to you to organize this code in a more pythonic way.
What I found useful is to write wrapper functions (or a class)
in a separate module. Something like this (untested) for the PDewT
function, and use it from your client code:

---- refrig.py
import ctypes
RefrigC = ctypes.cdll.RefrigC

_PDewT = RefrigC.PDewT
_PDewT.restype = 'f'

def PDewT(f):
    return _PDewT(c_double(f))
-----

Thomas