The Old New Thing

The perils of the accidental C++ conversion constructor

Raymond ChenJanuary 15, 2021Jan 15, 202101/15/21

Single-parameter constructors are also conversions.

How can I write a C++ class that iterates over its base classes?

Raymond ChenJanuary 14, 2021Jan 14, 202101/14/21

Variadic templates to the rescue.

The misleading MIDL error message: MIDL5023: The arguments to the parameterized interface are not valid

Raymond ChenJanuary 13, 2021Jan 13, 202101/13/21

They aren't valid, but then again, nothing would have been.

Why am I receiving SHCNE_UPDATEDIR notifications that my code never generates?

Raymond ChenJanuary 12, 2021Jan 12, 202101/12/21

You did generate them, indirectly.

The case of the crash during the release of an object from an unloaded DLL during apartment rundown

Raymond ChenJanuary 8, 2021Jan 8, 202101/8/21

The great escape from the confines of the custom COM context.

What happens if I give contradictory values for the stack commit and stack reserve?

Raymond ChenJanuary 7, 2021Jan 7, 202101/7/21

The system will try to massage the values into something less unreasonable.

How can I tell whether my process is running as SYSTEM?

Raymond ChenJanuary 6, 2021Jan 6, 202101/6/21

Check your token.

Additional helpful pseudo-handles: The process token, the thread token, and the effective token

Raymond ChenJanuary 5, 2021Jan 5, 202101/5/21

For quick queries.

How can I write a program that monitors another window for a change in size or position?

Raymond ChenJanuary 4, 2021Jan 4, 202101/4/21

Accessibility hooks come to the rescue once again.