The Old New Thing

Giving a single object multiple COM identities, part 2

Raymond Chen October 27, 2021 Oct 27, 2021 10/27/21

Trying to develop a slightly more efficient multi-headed snake.

Giving a single object multiple COM identities, part 1

Raymond Chen October 26, 2021 Oct 26, 2021 10/26/21

Like a multi-headed snake.

A very brief introduction to patterns for implementing a COM object that hands out references to itself

Raymond Chen October 25, 2021 Oct 25, 2021 10/25/21

We'll look at many choices, but focus on one.

Renaming a file is a multi-step process, only one of which is changing the name of the file

Raymond Chen October 22, 2021 Oct 22, 2021 10/22/21

If you're going to swoop in, make sure to swoop in carefully.

Why isn’t MapDialogRect mapping dialog rectangles?

Raymond Chen October 21, 2021 Oct 21, 2021 10/21/21

Maybe you don't have a dialog.

My code crashed when I asked WIL to convert an exception to an HRESULT, did I throw an improper exception type?

Raymond Chen October 20, 2021 Oct 20, 2021 10/20/21

Digging into the failure more closely.

That time we had a network outage due to unexpected hunter activity

Raymond Chen October 19, 2021 Oct 19, 2021 10/19/21

Watch where you're pointing that thing.

How can I get the screen reader to read out an error message that I displayed inline on a page?

Raymond Chen October 18, 2021 Oct 18, 2021 10/18/21

Make it a live region.

What does the SizeOfImage mean in the MODULEINFO structure?

Raymond Chen October 15, 2021 Oct 15, 2021 10/15/21

It's the size in terms of mapped address space when loaded.

Why does GetModuleInfo fail to produce an entry point for executables?

Raymond Chen October 14, 2021 Oct 14, 2021 10/14/21

Because it's getting the information from the loader, who has no use for such things.