Hi, I'm currently having trouble to write a COM-Server that has some special requirements: - It needs to derive from IUnknown - It needs to implement multiple interface from two different proprietary typelibs (dlls) - It needs to implement a custom category
At first I started with pythoncom. I used the attribute _reg_catids_ to specify the category and _com_interfaces_ to specify the interfaces I want to implement. The client (proprietary 3rd party sw, no source) sees the server but throws some 0x80004005 error on CoCreateInstance. I was hoping that I can just tell the COM dispatcher, "yes, I have these interface implemented" and implement the methods without really having the interface classes available. I read, that pythoncom can only create components that use IDispatch so I guess the _com_interfaces_ idea won't work, will it? Then I did some further research and found comtypes. I tried to write a server stub again. I used GetModule to load the type library containing the Interfaces, importing the generated interface classes and let the main server class extend these interfaces. The first problem was, that comtypes did not support the _reg_catids_ attribute or anything similar so I had to add the Implemented Categories key manually to the registry. Then, I was able to see the server through the client, which obviously filters by categories, but it still shows the same error as before. So, what is the correct/best way to implement a server that needs to implement custom interfaces and categories? Or is it possible at all using python? Thanks! //Jan
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