(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_EGLIntArrayCallback

EGL surface/context attribute initialization callback types.

Header File

Syntax

typedef SDL_EGLint *(SDLCALL *SDL_EGLIntArrayCallback)(void *userdata, SDL_EGLDisplay display, SDL_EGLConfig config);

Function Parameters

userdata	an app-controlled pointer that is passed to the callback.
display	the EGL display to be used.
config	the EGL config to be used.

Return Value

Returns a newly-allocated array of attributes, terminated with EGL_NONE.

Remarks

This is called when SDL is attempting to create an EGL surface, to let the app add extra attributes to its eglCreateWindowSurface() or eglCreateContext calls.

For convenience, the EGLDisplay and EGLConfig to use are provided to the callback.

The callback should return a pointer to an EGL attribute array terminated with EGL_NONE. If this function returns NULL, the SDL_CreateWindow process will fail gracefully.

The returned pointer should be allocated with SDL_malloc() and will be passed to SDL_free().

The arrays returned by each callback will be appended to the existing attribute arrays defined by SDL.

Version

This datatype is available since SDL 3.1.3.