SDL_PRIx32 - Man Page

SDL_PRIx32 — A printf-formatting string for a Uint32
value as lower-case hexadecimal.

Defined in SDL3/SDL_stdinc.h

#include "SDL3/SDL.h"

#define SDL_PRIx32 x"

Use it like this:

SDL_Log("There are %" SDL_PRIx32 " bottles of beer on the wall.", bottles);

This macro is available since SDL 3.2.0.