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

NAME
SDL_FlipSurface - Flip a surface vertically or horizontally.
HEADER FILE
Defined in SDL3/SDL_surface.h
SYNOPSIS
#include "SDL3/SDL.h" bool SDL_FlipSurface(SDL_Surface *surface, SDL_FlipMode flip);
FUNCTION PARAMETERS
surface the surface to flip. flip the direction to flip.
RETURN VALUE
Returns true on success or false on failure; call SDL_GetError () for more information.
AVAILABILITY
This function is available since SDL 3.2.0. Simple Directmedia Layer SDL 3.2.8 SDL_FlipSurface(3)