The Old New Thing

C++/WinRT event handlers that are lambdas with weak pointers to the parent class, part 1

May 31, 2023 May 31, 2023 05/31/23

Raymond Chen

Assessing the state of affairs.

On writing functions that accept any specialization of a C++ template type

May 29, 2023 May 29, 2023 05/29/23

Raymond Chen

There are the obvious arguments, the non-obvious arguments, and the invisible arguments.

Getting a strong reference from the this pointer too late

May 26, 2023 May 26, 2023 05/26/23

Raymond Chen

Once destruction begins, strong references mean nothing.

How can I trigger a recalc of the mouse cursor after I changed some of my internal application state?, follow-up

May 25, 2023 May 25, 2023 05/25/23

Raymond Chen

You still need to filter to your window, so you don't mess up another window on the same thread.

Don’t name your header file security.h either

May 24, 2023 May 24, 2023 05/24/23

Raymond Chen

You may be overriding an SDK header by mistake.

On creating (and using) a transforming iterator

May 23, 2023 May 23, 2023 05/23/23

Raymond Chen

It lets you change the thing being iterated over, on the fly.

Speeding up the insertion of a sorted (or mostly-sorted) key list into a std::map or other ordered associative container

May 22, 2023 May 22, 2023 05/22/23

Raymond Chen

Provide a hint for the location of the next item.

On catching exceptions in PPL tasks

May 19, 2023 May 19, 2023 05/19/23

Raymond Chen

You also have to catch the exception when it comes out the end of the task chain.

What is the opposite of LVM_SORTITEMS?

May 18, 2023 May 18, 2023 05/18/23

Raymond Chen

How can you unring the bell?

How do I free the pointers returned by functions like Get­Token­Information?

May 17, 2023 May 17, 2023 05/17/23

Raymond Chen

They are all pointers back into the main memory block.