Listing 3. Keyboard Code

   if (keyboard_init()) {
      fprintf(stderr,<\n>
   "\nCould not initialize keyboard.\n");
      exit(1);
   }


   /* first check for input, then handle it */
   while (kbhit())
      switch (getkey()) {
         case K_Down: {
      printf("\nYou pressed the DOWN key");
         break;
         }
         case K_Up: {
      printf("\nYou pressed the UP key");
            break;
         }
      }
    /*
     * Predefined constants such as K_Down and
     * K_Up may be found in DJGPP's `keys.h'<\n>
     * include file.
     */


   /* first check for input, then handle it */
   keyboard_update();
   if (keyboard_keypressed(SCANCODE_CURSORUP))
      printf("\nYou pressed the UP key");
   if (keyboard_keypressed(SCANCODE_CURSORDOWN))
      printf("\nYou pressed the DOWN key");
    /*
     * Predefined constants such as
     * SCANCODE_CURSORUP and SCANCODE_CURSORDOWN
     * may be found in SVGALIB's vgakeyboard.h
     * include file.
     */