The Old New Thing

How can I test my geolocation code on a system without a GPS?

October 31, 2022 Oct 31, 2022 10/31/22

Raymond Chen

You can use the Windows Device Portal to create a synthetic GPS.

Setting properties in C++/WinRT is done by a function call, but you need to call the function the right way

October 28, 2022 Oct 28, 2022 10/28/22

Raymond Chen

The new value is the function parameter.

Why am I seeing two WRITE requests at the same offset from a single call to WriteFile?

October 27, 2022 Oct 27, 2022 10/27/22

Raymond Chen

It started as one write, but turned into a lot of other things.

What can or should I do with the cursor handle returned by SetCursor?

October 26, 2022 Oct 26, 2022 10/26/22

Raymond Chen

You can put it back, but sometimes you need to make sure you do it before anybody else can see the change.

Why are many Windows user interface elements positioned at multiples of 4 or 8 pixels?

October 25, 2022 Oct 25, 2022 10/25/22

Raymond Chen

It depends on whose pixels you're talking about.

Why can’t I programmatically inspect the check boxes in the Security property sheet any more?

October 24, 2022 Oct 24, 2022 10/24/22

Raymond Chen

Abusing the ISecurity­Information::Property­Sheet­Page­Callback method.

What happens if my C++ exception handler itself raises an exception?

October 21, 2022 Oct 21, 2022 10/21/22

Raymond Chen

And comparing to the handling of structured exceptions.

Is it true that raising a structured exception from a structured exception handler terminates the process?

October 20, 2022 Oct 20, 2022 10/20/22

Raymond Chen

Untangling the myth.

Why is there a make_unique? Why not just overload the unique_ptr constructor?

October 19, 2022 Oct 19, 2022 10/19/22

Raymond Chen

You'll have to resolve the ambiguity, so you're still typing a lot.

Why is there a passwords.txt file on my system that’s filled with somebody else’s passwords?

October 18, 2022 Oct 18, 2022 10/18/22

Raymond Chen

It's part of an open-source password strength package.