Provided by: libsdl3-image-doc_3.2.0+ds-2_all 

NAME
IMG_SaveJPG - Save an SDL_Surface into a JPEG image file.
HEADER FILE
Defined in SDL3_image/SDL_image.h
SYNOPSIS
#include "SDL3_image/SDL_image.h" bool IMG_SaveJPG(SDL_Surface *surface, const char *file, int quality);
DESCRIPTION
If the file already exists, it will be overwritten.
FUNCTION PARAMETERS
surface the SDL surface to save. file path on the filesystem to write new file to. quality [0; 33] is Lowest quality, [34; 66] is Middle quality, [67; 100] is Highest quality.
RETURN VALUE
Returns true on success or false on failure; call SDL_GetError() for more information.
AVAILABILITY
This function is available since SDL_image 3.0.0.
SEE ALSO
•(3), IMG_SaveJPG_IO(3)