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 Warn when a COM interface is missing from COM map		  New Topic  Reply to Topic
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cpp_john
New Member

Italy
4 Posts
Posted - Oct 09 2020 :  1:46:35 PM  Show Profile  Reply with Quote
Consider the case of implementing a COM object in C++ using ATL.

This ATL C++ class implements some COM interfaces, that are listed as base classes.

In addition, these COM interfaces should also be added as entries in the COM map, using the 
COM_INTERFACE_ENTRY
macro.

If the entry in the COM map is missing, you can get subtle bugs, as described in this blog post:

https://blogs.msmvps.com/gdicanio/2020/10/09/the-case-of-the-context-menu-shell-extension-that-doesnt-get-invoked-by-explorer/

So, it's good to have Visual Assist X emits at least a warning in such cases.

feline
Whole Tomato Software

United Kingdom
19023 Posts
Posted - Oct 12 2020 :  06:36:36 AM  Show Profile  Reply with Quote
Are you talking about having VA check existing code, or is this when you are writing / creating new code?

The current Code Inspection feature is based on Clang, and is checking C++ features, so is rather unlikely to pick up ATL specific points.
zen is the art of being at one with the two'ness
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