This macro turns the version numbers into a numeric value:
Defined in [SDL_version.h](https://github.com/libsdl-org/SDL/blob/SDL2/include/SDL_version.h), but apps should _only_ `#include "SDL.h"`!
#define SDL_VERSIONNUM(X, Y, Z) \
((X)*1000 + (Y)*100 + (Z))
CategoryAPI, CategoryAPIMacro, CategoryVersion