NAME

       SDL_HINT_WINDOWS_FORCE_SEMAPHORE_KERNEL  -  A  variable controlling whether SDL uses Kernel Semaphores on
       Windows.

HEADER FILE

       Defined in SDL3/SDL_hints.h

SYNOPSIS

       #include "SDL3/SDL.h"

       #define SDL_HINT_WINDOWS_FORCE_SEMAPHORE_KERNEL SDL_WINDOWS_FORCE_SEMAPHORE_KERNEL"

DESCRIPTION

       Kernel Semaphores are inter-process and require a context switch on every interaction. On Windows  8  and
       newer,  the  WaitOnAddress  API  is  available.  Using that and atomics to implement semaphores increases
       performance. SDL will fall back to Kernel Objects on older OS versions or if forced to by this hint.

       The variable can be set to the following values:

       • "0": Use Atomics and WaitOnAddress API when available, otherwise fall
         back to Kernel Objects. (default)

       • "1": Force the use of Kernel Objects in all cases.

       This hint should be set before SDL is initialized.

AVAILABILITY

       This hint is available since SDL 3.2.0.

Simple Directmedia Layer                           SDL 3.2.10         SDL_HINT_WINDOWS_FORCE_SEMAPHORE_KERNEL(3)