al_draw_justified_ustr
void al_draw_justified_ustr(const ALLEGRO_FONT *font,
ALLEGRO_COLOR color, float x1, float x2,
float y, float diff, int flags, const ALLEGRO_USTR *ustr)
Like al_draw_ustr, but justifies the string to the specified area.
See also: al_draw_justified_text, al_draw_justified_textf.