enum gfx_if_en if_conv(char *);
enum tmt_en tmt_conv(char *);
enum grc_en grc_conv(char *);
-enum grc_en text_prop_conv(char *);
+enum text_prop_en text_prop_conv(char *);
int im_free(image_desc_t *);
void auto_scale( image_desc_t *, double *, char **, double *);
void si_unit( image_desc_t *);