Hi, I’m trying to control an existing COM server (C++ code) with a python COM client.
Unfortunately, no type library exists for most of the COM objects. Thus I’m restricted to the dynamic dispatch implementation. This is my sample code. Its equivalent works flawlessly when called via VBA, moreover I'm sure that the requested COM methods exist in the server. import win32com.client obj_1 = win32com.client.DispatchEx(“MyCOMServerApplication”) obj_2 = obj_1.NewDocument() # works, returns a new dynamic dispatch (<CDispatch: None>) obj_2.SubObject.DoSomething(“MyArgument”) # works, but only if I don’t step into it (i.e. into CDispatch.__getattr__) #obj_2.GetSomeNumber() # TypeError: 'int' object is not callable obj_2.GetSomeNumber # works correctly, but only if I don’t step into it (i.e. into CDispatch.__getattr__) obj_2.DoSomething(“MyArgument”) # doesn’t work I also tried passing any arguments (e.g. “MyArgument”) as VARIANTs, but to no avail. Evidently I’m very confused, especially since the behavior differs when stepping into the relevant python code. I have also read that the dynamic dispatch implementation doesn't support by-ref parameters, is this information still up to date? Looking forward to any help. If needed, I'll gladly provide more information. Thanks, Dominik
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