[pywin32-bugs] [ pywin32-Bugs-1896670 ] Universal gateway do not work with COM Records

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Bugs item #1896670, was opened at 2008-02-19 12:16
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Alexandr Zamaraev (shura_zam)
Assigned to: Nobody/Anonymous (nobody)
Summary: Universal gateway do not work with COM Records 

Initial Comment:
I try use win32com for realize interface:
[code lang='IDL']
...
typedef [...]
struct tagMatrix3d {
  Point3d RowX;
  Point3d RowY;
  Point3d RowZ;
} Matrix3d;
...
  interface ILocateCommandEvents : IDispatch {
...
    HRESULT LocateFilter([in] _Element* Element, [in, out] Point3d* Point, [in, out] VARIANT_BOOL* Accepted);
...
     };
...
[/code]

I'd made it in such way:
[code lang='python']
class LocateCommandEvents(object):
   _com_interfaces_ = [IID_ILocateCommandEvents]
   _typelib_guid_ = '{CF9F97BF-39F2-4B8E-835C-8BE9E99DAF5B}'
   _typelib_version_ = 8, 0
   _typelib_lcid_ = 0

   _public_methods_ = []
   _dispid_to_func_ = {..., 0x60020002: 'LocateFilter', ...}
  def LocateFilter(self, Element, Point, Accepted):
    print 'LocateFilter'
    print Element, Point, Accepted
    return S_OK, None, True
...
[/code]

Now errors occur in calls to LocateCommandEvents.LocateFilter function
from MicroStation:
[code]
LocateFilter
<win32com.gen_py.Bentley MicroStation DGN 8.0 Object Library._Element instance at 0x12737352> 2223916 True
pythoncom error: Failed to call the universal dispatcher

Traceback (most recent call last):
   File "C:\Lang\Python\25\lib\site-packages\win32com\universal.py",
line 193, in
  dispatch
     WriteFromOutTuple(retVal, meth._gw_out_args, argPtr)
<type 'exceptions.TypeError'>: The VARIANT type is unknown (0x24).
pythoncom error: Unexpected gateway error

Traceback (most recent call last):
   File "C:\Lang\Python\25\lib\site-packages\win32com\universal.py",
line 193, in
  dispatch
     WriteFromOutTuple(retVal, meth._gw_out_args, argPtr)
<type 'exceptions.TypeError'>: The VARIANT type is unknown (0x24).
[/code]


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