(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_OpenIO

Header File

Syntax

SDL_IOStream* SDL_OpenIO(const SDL_IOStreamInterface *iface, void *userdata);

Function Parameters

iface	The function pointers that implement this SDL_IOStream.
userdata	The app-controlled pointer that is passed to iface's functions when called.

Return Value

Returns a pointer to the allocated memory on success, or NULL on failure; call SDL_GetError() for more information.

Remarks

Applications do not need to use this function unless they are providing their own SDL_IOStream implementation. If you just need an SDL_IOStream to read/write a common data source, you should use the built-in implementations in SDL, like SDL_IOFromFile() or SDL_IOFromMem(), etc.

You must free the returned pointer with SDL_CloseIO().

This function makes a copy of iface and the caller does not need to keep this data around after this call.

Version

This function is available since SDL 3.0.0.