The Old New Thing

Is the Terminate­Thread function synchronous?

July 27, 2018 Jul 27, 2018 07/27/18

Raymond Chen

Nope. It merely starts the termination but does not wait for the termination to complete.

What happens to custom unhandled exception filters if a debugger is not running?

July 26, 2018 Jul 26, 2018 07/26/18

Raymond Chen

Nothing, that's what. Absolutely nothing.

Why are my file write operations synchronous, even though I opened the file as FILE_FLAG_OVERLAPPED?

July 25, 2018 Jul 25, 2018 07/25/18

Raymond Chen

Extending the valid bytes is always synchronous.

How do I trigger an EN_UPDATE notification for all of my edit controls when the user’s locale information changes?

July 23, 2018 Jul 23, 2018 07/23/18

Raymond Chen

It's your edit control, so you can do it yourself.

How can I get the actual window procedure address and not a thunk?

July 20, 2018 Jul 20, 2018 07/20/18

Raymond Chen

Match the character set of the top-level window procedure.

When is it appropriate to use the current processor number as an optimization hint?

July 19, 2018 Jul 19, 2018 07/19/18

Raymond Chen

Try not to let it slip out from under you.