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

NAME
SDL_WriteIO - Write to an SDL_IOStream
data stream.
HEADER FILE
Defined in SDL3/SDL_iostream.h
SYNOPSIS
#include "SDL3/SDL.h"
size_t SDL_WriteIO(SDL_IOStream *context, const void *ptr, size_t size);
DESCRIPTION
This function writes exactly size bytes from the area pointed at by ptr to the stream. If this fails for
any reason, it'll return less than size to demonstrate how far the write progressed. On success, it
returns size .
On error, this function still attempts to write as much as possible, so it might return a positive value
less than the requested write size.
The caller can use SDL_GetIOStatus () to determine if the problem is recoverable, such as a non-blocking
write that can simply be retried later, or a fatal error.
FUNCTION PARAMETERS
context
a pointer to an SDL_IOStream
structure.
ptr a pointer to a buffer containing data to write.
size the number of bytes to write.
RETURN VALUE
Returns the number of bytes written, which will be less than size on failure; call SDL_GetError () for
more information.
THREAD SAFETY
This function is not thread safe.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_IOprintf(3), •(3), SDL_ReadIO(3), •(3), SDL_SeekIO(3), •(3), SDL_FlushIO(3), •(3),
SDL_GetIOStatus(3)
Simple Directmedia Layer SDL 3.2.8 SDL_WriteIO(3)