Function            inkey - get a key

  Syntax              int inkey(boolean wait);

  Prototype in        keyboard.h

  Remarks             inkey returns the key code of the key pressed. If
                      no key was pressed (WAIT = FALSE) 0 is returned.
                      This function is similar to getchar() except input
                      is not echoed to the screen and inkey will detect
                      any key press (any standard keypress. It cannot
                      distinguish between the grey '+' key and the white
                      '+'. This function is interrupt driven. It will
                      detect ALT combinations, Del, PgUp, function keys,
                      etc., any keyboard INTerrupt accepted keys.)

  Return value        returns the key code of the key pressed, from 1 to
                      511. If WAIT = FALSE, and no key is pressed, zero
                      is returned.

  See also            keycode.h
                      getc_match(), getk(), getc_match(), getlogical(),
                      getyn(), inkeyc(), inkeycdv(), inkeydv(),
                      tocapkey()

  Example             #include <keyboard.h>
                      #include <stdio.h>

                      main()
                      {
                           int c;

                           c = inkey(WAIT);
                           printf("Key code # in keycode.h: %d\n", c);
                      }