SDL_HintCallback.3type - Man Page
A callback used to send notifications of hint value changes.
Header File
Defined in SDL3/SDL_hints.h
Synopsis
#include "SDL3/SDL.h" typedef void(SDLCALL *SDL_HintCallback)(void *userdata, const char *name, const char *oldValue, const char *newValue);
Description
This is called an initial time during
SDL_AddHintCallback
with the hint's current value, and then again each time the hint's value changes.
Function Parameters
- userdata
what was passed as userdata to SDL_AddHintCallback ().
- name
what was passed as name to SDL_AddHintCallback ().
- oldValue
the previous hint value.
- newValue
the new value hint is to be set to.
Thread Safety
This callback is fired from whatever thread is setting a new hint value. SDL holds a lock on the hint subsystem when calling this callback.
Availability
This datatype is available since SDL 3.2.0.
See Also
·(3), SDL_AddHintCallback(3)
Info
SDL 3.2.2 Simple Directmedia Layer SDL3 DATATYPES