The Old New Thing

Why am I getting an access violation trying to access a method on my C++/WinRT object?

October 30, 2020 Oct 30, 2020 10/30/20

Raymond Chen

The method vanishes.

Do any Windows Runtime projections cache nondefault Windows Runtime interfaces?

October 29, 2020 Oct 29, 2020 10/29/20

Raymond Chen

Possibly, but I know two that definitely don't.

Windows Runtime objects are represented by their default interface, so choose your default interface wisely

October 28, 2020 Oct 28, 2020 10/28/20

Raymond Chen

The choice is usually obvious, but on occasion, the non-obvious choice may be better.

I told the Microsoft Visual C++ compiler not to generate AVX instructions, but it did it anyway!

October 26, 2020 Oct 26, 2020 10/26/20

Raymond Chen

Well, you explicitly generate them.

How can I tell whether a file is on an SSD?

October 23, 2020 Oct 23, 2020 10/23/20

Raymond Chen

Putting the pieces together.

Taking a shortcut: You can query properties from a volume, and it will forward to the physical drive

October 22, 2020 Oct 22, 2020 10/22/20

Raymond Chen

Saving a little extra trip.

How do I get from a volume to the physical disk that holds it?

October 21, 2020 Oct 21, 2020 10/21/20

Raymond Chen

Another step down the hierarchy.

How do I get from a file path to the volume that holds it?

October 20, 2020 Oct 20, 2020 10/20/20

Raymond Chen

Walking down the topology, with a little backslash weirdness thrown in.

Mount points, volumes, and physical drives, oh my!

October 19, 2020 Oct 19, 2020 10/19/20

Raymond Chen

Navigating the storage topology.