Set a global script to be used for text shaping.
This function expects an hb_script_t value, from HarfBuzz, cast to an int, and affects all fonts globally. Please use TTF_SetFontScriptName() instead, which accepts a string that is converted to an equivalent int internally, and operates on a per-font basis.
This is a global setting; fonts will favor a value set with TTF_SetFontScriptName(), but if they have not had one explicitly set, they will use the value specified here.
The default value is
int TTF_SetScript(int script); /* hb_script_t */
Returns 0, or -1 if SDL_ttf is not compiled with HarfBuzz support.
This function is available since SDL_ttf 3.0.0.