Use this function to prepare a read-write memory buffer for use with SDL_IOStream.
Defined in <SDL3/SDL_iostream.h>
void *mem, size_t size); SDL_IOStream * SDL_IOFromMem(
void * | mem | a pointer to a buffer to feed an SDL_IOStream stream. |
size_t | size | the buffer size, in bytes. |
(SDL_IOStream *) Returns a pointer to a new SDL_IOStream structure or NULL on failure; call SDL_GetError() for more information.
This function sets up an SDL_IOStream struct based on a memory area of a certain size, for both read and write access.
This memory buffer is not copied by the SDL_IOStream; the pointer you provide must remain valid until you close the stream. Closing the stream will not free the original buffer.
If you need to make sure the SDL_IOStream never writes to the memory buffer, you should use SDL_IOFromConstMem() with a read-only buffer of memory instead.
The following properties will be set at creation time by SDL:
SDL_PROP_IOSTREAM_MEMORY_POINTER
: this will be the mem
parameter that was passed to this function.SDL_PROP_IOSTREAM_MEMORY_SIZE_NUMBER
: this will be the size
parameter that was passed to this function.This function is available since SDL 3.0.0.