Win32 - InvokeTypes numeric type codes

[Andreas Cardeneo]

Hi,

trying to use an ActiveX-control with Mark Hammond's Win32 COM
extensions I 
experience problems trying to call some methods of the COM-control.
I generated early binding info with MakePy, but this is the traceback I
get:

-%<-------
Traceback (innermost last):
  File "E:\temp\fxtest.py", line 4, in ?
    fx.AddObservation(0,42)
  File "E:\Program
Files\Python\win32com\gen_py\9B90F101-2EB7-11D1-BADB-006097A71E96x0x1x0.py",
line 263, in AddObservation
   def AddObservation(self, seriesNumber=defaultNamedNotOptArg,
Value=defaultNamedNotOptArg, Description=None, originType=None):
File "E:\Program
Files\Python\win32com\gen_py\9B90F101-2EB7-11D1-BADB-006097A71E96x0x1x0.py",
line 227, in 
_ApplyTypes_pydisp=self._oleobj_.InvokeTypes(dispid, LCID, wFlags,
retType, argTypes, args)
TypeError: object can't be converted to int
-%<-------

The problem might be, that the last two arguments for the
AddObservation-Method are optional but don't have
the default-values set by MakePy (None for both, while the empty string
"" and "1" (one) would be right
according to the typelib.)
I believe that I will have to change the type-code-tuple MakePy
generates here: 
-%<-------
def AddObservation(self, seriesNumber=defaultNamedNotOptArg,
Value=defaultNamedNotOptArg, Description=None, originType=None):
"""Adds observations to matrix."""
return self._ApplyTypes_(0x4, 1, (24, 32), ((3, 0), (5, 0), (8, 48), (2,
48)), 'AddObservation', None, seriesNumber, Value, Description,
originType)
-%<-------

But what do I have to enter here? Where can I find the numeric values
and the meaning of those tuples?

Thanks a lot,

Andreas Cardeneo
andreas.cardeneo at mach.uni-karlsruhe.de