Hi Thomas,In GUID.py, _CoTaskMemFree is defined as oledll.ole32.CoTaskMemFree. While oledll is fine for most ole32 functions (as they return HRESULT), CoTaskMemFree is an exception and has a return type of void. In Windows 7, it seems that this does matter; the return value is sometimes -65535, which raises an exception due to a non-0 HRESULT. This is similar to the issue with ITypeLib::ReleaseTLibAttr.
Btw, I saw this exception as a result of line 44 (in GUID.__unicode__): _CoTaskMemFree(p) I have attached a patch to fix this. Thanks. Jamie -- James Teh Email/MSN Messenger/Jabber: ja...@jantrid.net Web site: http://www.jantrid.net/
Index: comtypes/GUID.py =================================================================== --- comtypes/GUID.py (revision 537) +++ comtypes/GUID.py (working copy) @@ -15,7 +15,7 @@ _ole32 = oledll.ole32 _StringFromCLSID = _ole32.StringFromCLSID -_CoTaskMemFree = _ole32.CoTaskMemFree +_CoTaskMemFree = windll.ole32.CoTaskMemFree _ProgIDFromCLSID = _ole32.ProgIDFromCLSID _CLSIDFromString = _ole32.CLSIDFromString _CLSIDFromProgID = _ole32.CLSIDFromProgID
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