* Return the width in pixels of a printf()-formatted string.
*/
int PGM_FUNC(text_widthf)(struct Bitmap *bm, const char * PGM_ATTR fmt, ...)
* Return the width in pixels of a printf()-formatted string.
*/
int PGM_FUNC(text_widthf)(struct Bitmap *bm, const char * PGM_ATTR fmt, ...)