SDL_HintCallback3type
A callback used to send notifications of hint value changes.
Usage
#include "SDL3/SDL.h"
typedef void(SDLCALL *SDL_HintCallback)(void *userdata, const char *name, const char *oldValue, const char *newValue);
Header file
Defined in SDL3/SDL_hints.h
Overview
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 |
|---|---|
name
|
what was passed as |
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.