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 Returns current status information from a device driver (IOCTL$); transmits
 a control data string to a device driver (IOCTL).
 
    IOCTL$([#]filenumber%)
    IOCTL [#]filenumber%, string$
 
 
    ■ filenumber%    Number of an open device
 
    ■ string$        Control string sent to the device
 
 See Also
    ◄Device I/O Commands►