multiscreen(M)                  19 June 1992                  multiscreen(M)


 Name

    multiscreen - multiple screens (device files)

 Syntax

    AltFn
    AltCtrlFn
    AltShiftFn
    AltCtrlShiftFn

 Description

    With the multiscreen feature, a user can access up to twelve different
    ``screens,'' each corresponding to a separate device file.  Each screen
    can be viewed one at a time through the primary monitor video display.

    The number of screens on a system depends upon the amount of memory in
    the computer. The system displays the number of enabled screens during
    the boot process.

 Access

    To see the next consecutive screen, enter:

       CtrlPrtSc

    To move to any screen from any other screen, enter:

       AltFn or AltCtrlFn or
       AltShiftFn
       AltFn or AltCtrlFn (screens 1-12)
       AltShiftFn or AltCtrlShiftFn (screens 11-16, 7-12)

    where n is the number of one of the ``F'' function keys on the primary
    monitor keyboard.  For example:

       AltF2

    selects tty02, and all output in that device's screen buffer is displayed
    on the monitor screen.

    The second form (using the Shift key) permits access to screens 11 and 12
    on keyboards that have only ten function keys.  It is possible to config-
    ure the kernel for up to 16 screens, but 12 is the default.

    The function key combinations used to display the various screens are
    defined in the keyboard mapping file. The /usr/lib/keyboard/keys or other
    mapkey(M) file can be modified to allow different key combinations to
    change multiscreens.  Use the mapkey utility to create a new keyboard
    map.

 File

    /dev/tty[01-12]         multiscreen devices
                            (number available depends on system memory)

 See also

    mapkey(M), keyboard(HW), screen(HW), serial(HW), stty(C)

 Notes

    Any system error messages are normally output on the console device file
    (/dev/console).  When an error message is output, the video display
    reverts to the console device file, and the message is displayed on the
    screen.  The console device is the only teletype device open during the
    system boot sequence and when in single-user, or system maintenance mode.

    Limitations to the number of multiscreens available on a system does not
    affect the number of serial lines or devices available. See serial(M) for
    information on available serial devices.

    Note that the keystrokes given here are the default, but your keyboard
    may be different.  If so, see keyboard(M) for the appropriate substi-
    tutes.  Also, any key can be programmed to generate the screen switching
    sequences by using the mapkey utility.

 Value added

    multiscreen is an extension of AT&T System V provided by The Santa Cruz
    Operation, Inc.