Re: [comtypes-users] ITypeLib::ReleaseTLibAttr definition wrong in comtypes

[Michael C. <mic...@gm...>]

Perhaps you can use None, I'm not sure. However, I used c_voidp, not 
c_void_p.
c_voidp as far as I am aware means void parameter, not void pointer. 
c_voidp can be used in ctypes function declarations for the return type 
when it is void.

c_void_p is void pointer.

Mick


On 15/03/2009 5:38 AM, Michael Eddington wrote:
> Correct me if I'm wrong, but I think you just defined it to return a
> "void*" (c_voidp).  I think you just want to set the return type to
> None for a void.
>
> mike
>
>
> On Sat, Mar 14, 2009 at 3:14 AM, Michael Curran
> <mic...@gm...>  wrote:
>    
>> Hi,
>>
>> I have noticed that the definition of ITypeLib::ReleaseTLibAttr seems to
>> be wrong in typeinfo.py, in comtypes.
>>
>> In XP and Vista it works ok oddly enough, but in particular builds of
>> Windows 7 it does not.
>>
>> In fact, in these builds, many times when it is called, it throws an
>> _ctypes.COMError, with an error code of -65535.
>>
>> I think the reason for this is that it is defined in comtypes as
>> returning an hresult, but it really returns void.
>>
>> Its definition in comtypes looks like this:
>>      COMMETHOD([], HRESULT, 'ReleaseTLibAttr',
>>                (['in'], POINTER(TLIBATTR)))
>> ]
>>
>> But in OAIdl.idl, it looks like this:
>>      void ReleaseTLibAttr(
>>                  [in]  TLIBATTR * pTLibAttr
>>              );
>>
>> So I think the comtypes definition should be:
>>      COMMETHOD([], c_voidp, 'ReleaseTLibAttr',
>>                (['in'], POINTER(TLIBATTR)))
>> ]
>>
>> I have tested this change on the particular builds of Windows7 the
>> problem occured on and it definitly fixes it.
>> It also does not seem to cause any problems on Vista, but I havn't been
>> testing for long.
>>
>> Thanks
>> Mick
>>
>>
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