Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_INIT_INTERFACE - A macro to initialize an SDL interface.
HEADER FILE
Defined in SDL3/SDL_stdinc.h
SYNOPSIS
#include "SDL3/SDL.h"
#define SDL_INIT_INTERFACE(iface) .BI do{.BI SDL_zerop(iface); .BI (iface)->version=sizeof(*(iface));.BI } while (0)
DESCRIPTION
This macro will initialize an SDL interface structure and should be called before you fill out the fields
with your implementation.
You can use it like this:
SDL_IOStreamInterface iface;
SDL_INIT_INTERFACE(&iface);
// Fill in the interface function pointers with your implementation
iface.seek = ...
stream = SDL_OpenIO(&iface, NULL);
If you are using designated initializers, you can use the size of the interface as the version, e.g.
SDL_IOStreamInterface iface = {
.version = sizeof(iface),
.seek = ...
};
stream = SDL_OpenIO(&iface, NULL);
THREAD SAFETY
It is safe to call this macro from any thread.
AVAILABILITY
This macro is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_IOStreamInterface(3type), •(3), SDL_StorageInterface(3type), •(3),
SDL_VirtualJoystickDesc(3type)
Simple Directmedia Layer SDL 3.2.8 SDL_INIT_INTERFACE(3)