debian man page for extract_font_range

extract_font_range(3alleg4)					  Allegro manual				       extract_font_range(3alleg4)

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

SYNOPSIS
       #include <allegro.h>

       FONT *extract_font_range(FONT *f, int begin, int end)

DESCRIPTION
       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);

RETURN VALUE
       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.

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

Allegro 							   version 4.4.2				       extract_font_range(3alleg4)