Define a four character code as a Uint32.
Defined in <SDL3/SDL_stdinc.h>
#define SDL_FOURCC(A, B, C, D) \
    ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
     (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
     (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
     (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))| A | the first ASCII character. | 
| B | the second ASCII character. | 
| C | the third ASCII character. | 
| D | the fourth ASCII character. | 
Returns the four characters converted into a Uint32, one character per-byte.
It is safe to call this macro from any thread.
This macro is available since SDL 3.2.0.