extract_font_range - Extracts a range of characters from a font. Allegro game programming library.

       This  function extracts a character range from a font and returns a new font that contains only the range
       of characters selected by this function. You can pass -1 for either the lower or upper bound if you  want
       to select all characters from the start or to the end of the font.  Example:

          FONT *myfont;
          FONT *capitals;
          FONT *fontcopy;
          ...
          /* Create a font of only capital letters */
          capitals = extract_font_range(myfont, 'A', 'Z');

          /* Create a copy of the font */
          fontcopy = extract_font_range(myfont, -1, -1);
          ...
          destroy_font(capitals);
          destroy_font(fontcopy);

       extract_font_range - Extracts a range of characters from a font. Allegro game programming library.

       Returns  a pointer to the new font or NULL on error. Remember that you are responsible for destroying the
       font when you are finished with it to avoid memory leaks.

get_font_range_begin(3alleg4),             get_font_range_end(3alleg4),             merge_fonts(3alleg4),
       transpose_font(3alleg4), exfont(3alleg4)

Allegro                                           version 4.4.3                      extract_font_range(3alleg4)

#include<allegro.h>FONT*extract_font_range(FONT*f,intbegin,intend)