Handing over string value fails

Hi All,

the following function

dllfunc(int dllHandle, const char *dllParam1, const char *dllParam2)

shall be called using ctypes.

I have the following code:

lib = ctypes.LoadLibrary("win.dll")

def pyfunc(pyHandle, pyParam1, pyParam2):
   INT = ctypes.c_int
   PCHAR = ctypes.c_char_p

   lib.artypes = (INT, PCHAR, PCHAR)

   p1 = ctypes.create_char_buffer(pyParam1)
   p2 = ctypes.create_char_buffer(pyParam2)

   returnCode = lib.dllfunc(pyHandle, ctypes.byref(p1), ctypes.byref(p1))

   return returnCode

pyfunc(pyHandle = 1, pyParam1 = "value1", pyParam2 = "value2")

The returnCode is always an error saying that the value of pyParam1 could not be found.

What do I do wrong?

Regards

George


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