+---------------------------------+
|             CHRSAW              |
+---------------------------------+
CHRSAW([<expN>])

-----------------------------------
Determines if a character is present in keyboard buffer.
Return value - Logical
-----------------------------------

This function can be used for a variety of timed activities, like
shutting down an application if a key has not been pressed for a
specified number of seconds.  Does not affect the keyboard buffer's
contents.

<expN>
        Waits for <expN> seconds for a key to be pressed.  If <expN> is
present, the function waits up to <expN> seconds for a key to be
pressed.  <expN> may have a fractional part.  If <expN> is omitted, the
function returns a value immediately.

+---------------------------------+
|         Program Example         |
+---------------------------------+
In this example, system will display a window containing input fields
and wait 10 minutes for keyboard input.  If no key is pressed, CHRSAW()
returns false and program terminates.

SET TALK OFF
STORE 0 to holdkey
DEFINE WINDOW menter FROM 7,10 to 17,70 PANEL
ACTIVATE WINDOW menter
@ 1,3 SAY 'Customer: ' GET mcustomer DEFAULT SPACE(40)
@ 3,3 SAY 'Address: '  GET maddress DEFAULT SPACE(40)
@ 5,3 SAY 'City: '     GET mcity DEFAULT SPACE(24)
@ 7,3 SAY 'State: '    GET mstate DEFAULT SPACE(2)
@ 7,18 SAY 'Zip: '     GET mzip DEFAULT SPACE(10)
@ 1,14 SAY ''
IF NOT CHRSAW(600)
   DEACTIVATE WINDOW menter
   CLEAR GETS
   CLOSE ALL
   CANCEL
ELSE
   READ
   DEACTIVATE WINDOW menter
ENDIF

-----------------------------------

See Also:  INKEY(), READKEY()

-----------------------------------