Kelie schrieb: > Thomas Heller <thel...@...> writes: >> >> Anyway, you should NOT use 'cast' with COM object pointers. Last, >> but not least, 'cast' doesn't handle the COM reference count correctly. >> >> Please use 'QueryInterface' with them, like so: >> >> block = obj.QueryInterface(ACAD.IAcadBlockReference) >> > > Thanks Thomas. I'm getting an error using QueryInterface. > >> "C:\Python25\pythonw.exe" "C:\Python25\codes\autocad\temp\cast_test.py" > Traceback (most recent call last): > File "C:\Python25\codes\autocad\temp\cast_test.py", line 9, in <module> > block = obj.QueryInterface(ACAD.IAcadBlockReference) > File "C:\Python25\Lib\site-packages\comtypes\__init__.py", line 1069, in > QueryInterface > self.__com_QueryInterface(byref(iid), byref(p)) > _ctypes.COMError: (-2147467262, 'No such interface supported', (None, None, > None, 0, None))
I guess this means, well, that the interface is not supported. BTW: Sometimes, interfaces ARE supported by COM objects but cannot be marshalled across process boundaries. You also get the above error in this case. -- Thanks, Thomas ------------------------------------------------------------------------------ Check out the new SourceForge.net Marketplace. It is the best place to buy or sell services for just about anything Open Source. http://p.sf.net/sfu/Xq1LFB _______________________________________________ comtypes-users mailing list comtypes-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/comtypes-users
