Hi, After testing with the dyndispatch svn branch of comtypes, I relised that there is a problem with dynamic Dispatch and IEnumVARIANT being used together.
The problem is that If you enumerate a dynamic dispatch object (you get an IEnumVARIANT object some how from it), that IEnumVARIANT object doesn't know it has to provide dynamic=True to variant._get_value. So, the IEnumVARIANT's next method returns objects with fully generated interfaces, rather than just dynamic dispatch support. I would suggest that comtypes.automation.IEnumVARIANT have an instance variable called dynamic, which can be set to False by default. But if true, then the Next method should provide dynamic=True when getting variants. The reason why I wouldn't suggest that dynamic just be a keyword argument on Next is that there are many different ways in using iterators in Python, not just by calling Next manually. Most situations use a For loop, therefore not allowing the use of a keyword argument. Example: for x in IEnumVARIANTObj: I took a look at the Next method in comtypes.automation.IEnumVARIANT. I see that when celt is 1, it calls _Next, but if its not it calls _com_Next. I assume that _Next automatically gets its out params converted and returned, and the _com_Next method is more literal? If that is the case, then _Next wouldn't be able to be used at all as I guess the variant would be converted before we got a chance to do _get_value with dynamic=True. Also, I notice at the bottom of Next it returns a list made from the variants in the array, converted to their real values using some ctypes out param method... should this instead be _get_value? or is that ctypes method very different? If it was _get_value, then we would be able to pass the correct value for dynamic. Does all this sound ok? I'm hoping that as far as dynamic dispatch goes, IEnumVARIANT is the only other interface (other than IDispatch itself) that is used. If there are more, then perhaps adding dynamic=True to things everywhere isn't a good way to go. Mick ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ comtypes-users mailing list comtypes-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/comtypes-users
