Microsoft has issued another Windows 10 SDK preview build for developers, ticking the version number up to build 17713. The build is intended to be used with the latest Fast ring Insider release, which matches the SDK build number, and it contains some interesting tidbits for developers to check out.
Here's a look at some of the highlights:
- Support get_strong and get_weak to create delegates: This update allows a developer to use either get_strong or get_weak instead of a raw this pointer when creating a delegate pointing to a member function.
- Add async cancellation callback: The most frequently requested feature for C++/WinRT's coroutine support has been the addition of a cancellation callback.
- Simplify the use of APIs expecting IBuffer parameters: Although most APIs prefer collections or arrays, enough APIs rely on IBuffer that it should be easier to use such APIs from C++. This update provides direct access to the data behind an IBuffer implementation using the same data naming convention used by the C++ standard library containers. This also avoids colliding with metadata names that conventionally begin with an uppercase letter.
- Conformance: Improved support for Clang and Visual C++'s stricter conformance modes.
- Improved code gen: Various improvements to reduce code size, improve inlining, and optimize factory caching.
- Remove unnecessary recursion: When the command line refers to a folder rather than a specific winmd, cppwinrt will no longer search recursively for winmd files. It causes performance problems in the OS build and can lead to usage errors that are hard to diagnose when developers inadvertently cause cppwinrt to consume more winmds than expected. The cppwinrt compiler also now handles duplicates more intelligently, making it more resilient to user error and poorly-formed winmd files.
- Declare both WINRT_CanUnloadNow and WINRT_GetActivationFactory in base.h: Callers don't need to declare them directly. Their signatures have also changed, amounting to a breaking change. The declarations alleviate most of the pain of this change. The change is necessitated by the fact that C++/WinRT no longer depends on the Windows headers and this change removes the dependency on the types from the Windows headers.
- Harden smart pointers: The event revokers didn't revoke when move-assigned a new value. This lead us to take a closer look at the smart pointer classes and we noticed that they were not reliably handling self-assignment. This is rooted in the com_ptr class template that most of the others rely on. We fixed com_ptr and updated the event revokers to handle move semantics correctly to ensure that they revoke upon assignment. The handle class template has also been hardened by the removal of the implicit constructor that made it easy to write incorrect code. This also turned bugs in the OS into compiler errors fixed in this PR.
We may earn a commission for purchases using our links. Learn more.
HP updates Reverb G2 ahead of launch, preorders start shipping in November
HP is finally nearly ready to start shipping its new Reverb G2 Windows Mixed Reality headset. Those who have already preordered the $600 headset should see them arrive in November, while anyone preordering after September 24 will see headsets arrive in December.
The 300Hz display on the Razer Blade 15 is way ahead of its time
Our favorite gaming laptop now has a 300Hz display option and it's smoother than your eyes can really see.
Microsoft aims to compete with PS5 in Japan with Xbox Series S price drop
Microsoft is cutting the cost of the PS5 in Japan to better position the console as a cheaper alternative to the PS5. The price drop was announced during the company's first appearance at the Tokyo Game Show in six years.
The NFL is back! Check out these must-have Windows apps for football fans
After months of waiting through a unique offseason and no preseason games, the NFL is finally back this week. With these Windows 10 apps, you won't miss a snap of the NFL action.