**CIGAL Reference Manual, Chapter 4 (Variables): wflags**
===== Wflags -- Internal variable controlling the use of split screen windows =====
**usage: wflags = value**

WFLAGS is a bit-flag controlling whether to switch output to video window 1 during
execution of different commands.  Each bit in WFLAGS represents a different CIGAL
command, if that bit is 1 then window 1 will be used, otherwise window 0 will be
used for that command.

The meaning of the bits in WFLAGS is:
            10o   NOERASE  Don't erase when switching to Window 1
  
            40o   EDIT     Switch to Window 1 for EDIT command
           100o   HELP     Switch to Window 1 for HELP command
           200o   SHOW     Switch to Window 1 for SHOW command
           400o   DIR      Switch to Window 1 for DIR command
          1000o   JOU      Switch to Window 1 for JOURNAL command
          2000o   LIST     Switch to Window 1 for LIST command
          4000o   MENU     Switch to Window 1 for MENU command
         10000o   TYPE     Switch to Window 1 for TYPE command
         20000o   ECHO     Switch to Window 1 for implicit TYPE command
         40000o   ERR      Switch to Window 1 for error messages
        100000o   WATCH    Only use Window 1 for displaying WATCH data
  
Overall control for switching windows depends on the VWINDOW variable (see [[jvs:cigal:manual:chapter4:vwindow|VWINDOW(4)]]).
Set VWINDOW to force all output to either window regardless of the settings in WFLAGS.

NOTE: The WATCH command is unusual in that once WATCH has been called to display data values
in window 1, then all other commands will print their output in window 0 regardless of their
WFLAGS settings, until the WATCH command is inactivated (see [[jvs:cigal:manual:chapter2:watch|WATCH(2)]]).  The WATCH bit in
WFLAGS should normally not be changed except by the WATCH command itself.

**See Also:**\\
[[jvs:cigal:manual:chapter4:vwindow|VWINDOW(4)]], 
[[jvs:cigal:manual:chapter2:watch|WATCH(2)]]

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