SDL_HINT_MAIN_CALLBACK_RATE - Man Page
Request SDL_AppIterate () be called at a specific rate.
Header File
Defined in SDL3/SDL_hints.h
Synopsis
#include "SDL3/SDL.h" #define SDL_HINT_MAIN_CALLBACK_RATE SDL_MAIN_CALLBACK_RATE"
Description
If this is set to a number, it represents Hz, so "60" means try to iterate 60 times per second. "0" means to iterate as fast as possible. Negative values are illegal, but reserved, in case they are useful in a future revision of SDL.
There are other strings that have special meaning. If set to "waitevent",
SDL_AppIterate
will not be called until new event(s) have arrived (and been processed by SDL_AppEvent ). This can be useful for apps that are completely idle except in response to input.
On some platforms, or if you are using SDL_main
instead of
SDL_AppIterate , this hint is ignored. When the hint can be used, it is allowed to be changed at any time.
This defaults to 0, and specifying NULL for the hint's value will restore the default.
This hint can be set anytime.
Availability
This hint is available since SDL 3.2.0.