This example uses the DLL API of DriverLINX with Builder 5.0
Standard edition.

Program Flow:

1.  Open the driver
2.  Initialize the driver and hardware
3.  Setup a Polled mode task to read digital input channel 0.
    If the send messages check box is checked, a ServiceDone
    message will be sent by DriverLINX and processed.
4.  From the WindowsProc function (message pump), process
    the messages from DriverLINX to know when the acquisition
    is complete.
5.  Close the driver on exit.

This program is appropriate for any Keithley plug-in board that
has a DriverLINX driver and Digital Input capabilities.

