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Editorial Team
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Asked: 2026-05-25T19:52:46+00:00

I wrote a little ActiveX control in VisualBasic 6 which is going to be

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I wrote a little ActiveX control in VisualBasic 6 which is going to be used as a plugin for some 3rd party framework. The framework expects that my control exposes a few properties and methods. It all seems to work well except that one of my properties seems to be ignored.

In C++, I could put debug statement into the reimplementations of IDispatch::GetIDsOfNames and IDispatch::Invoke to see which members the framework attempts to access – maybe the documentation is wrong, and it’s expecting a different property name or something.

Is it possible to monitor the accesses to COM properties/methods in Visual Basic 6, too?

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1 Answer

  1. Editorial Team

    The easiest way is to add logging of some form in the methods/properties in question. I don’t think you can hook the lower level COM calls though.
    For the logging, you can use OutputDebugString().

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