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COM is interesting as it implements interfaces using the C++ vtable layout, which can be done in C. Dynamic COM (DCOM) is used to provide interoperability with

by rhdunn 8mo ago

COM is interesting as it implements interfaces using the C++ vtable layout, which can be done in C. Dynamic COM (DCOM) is used to provide interoperability with Visual Basic. You can also access .NET/C# objects/interfaces via COM. It has an interface to allow you to get the type metadata but that isn't necessary. This makes it possible to e.g. get the C#/.NET exception stack trace from a C/C++ application.

tonyedgecombe 8mo ago
>Dynamic COM (DCOM) is used to provide interoperability with Visual Basic. DCOM is Distributed COM not Dynamic COM[1]. COM does have an interface for dynamic dispatch called IDispatch[2] which is used for scripting languages like VBScript or JScript. It isn't required for Visual Basic though. VB is compiled and supports early binding to interfaces. [1] https://en.wikipedia.org/wiki/Distributed_Component_Object_Model https://en.wikipedia.org/wiki/Distributed_Component_Object_M... [2] https://en.wikipedia.org/wiki/IDispatch https://en.wikipedia.org/wiki/IDispatch
- rhdunn 8mo ago
  Ah yes, that's what I was thinking of. It's been a while since I've worked with COM.
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