TTF_SubString

typedef struct TTF_SubString
{
    TTF_SubStringFlags flags;   /**< The flags for this substring */
    int offset;                 /**< The byte offset from the beginning of the text */
    int length;                 /**< The byte length starting at the offset */
    int line_index;             /**< The index of the line that contains this substring */
    int cluster_index;          /**< The internal cluster index, used for quickly iterating */
    SDL_Rect rect;              /**< The rectangle, relative to the top left of the text, containing the substring */
} TTF_SubString;