isatty(DOS) — Xenix 2.3.4



     ISATTY(DOS)              XENIX System V               ISATTY(DOS)



     Name
          isatty - Checks for a character device.

     Syntax
          #include <io.h>

          int isatty (handle);
          int handle;

     Description
          The isatty function determines whether the given handle is
          associated with a character device (that is, a terminal,
          console, printer or serial port).

     Return Value
          isatty returns a nonzero value if the device is a character
          device.  Otherwise, the return value is 0.

     Example
          #include <io.h>

          int fh; long loc;      .       .       .  if (isatty (fh) ==
          0)      loc = tell (fh);   /* if not a device, get current
                           ** position                  */

     Notes
          This call must be compiled with the -dos flag.




























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