**CIGAL Reference Manual, Chapter 2 (Commands): WINDOW**
===== WINDOW -- Manipulate display window =====
**        usage:   window winname flag**\\
**    or:   result = window(winname)**

WINDOW can be used to turn screen display windows on or off, or query the window status.
The WINNAME argument should be a valid window's name. It is a character string, or the
name of a displayed image variable. The FLAG argument can be:
      1 - display the named window (move forward if hidden, or expand icon)
      0 - hide window by converting it to an icon
     -1 - destroy window (only works for user generated image windows)

If the WINNAME argument does not refer to a valid display window, WINDOW has no effect.
WINDOW sets the register 0 (r0) variable to the window number upon completion, or to -1
if the named window was not found.  To simply test whether the named window exists,
WINDOW can be used as a function-- in this case, WINDOW does not attempt to change the
window status, it just stores the window number in the RESULT variable.

**See Also:**\\
[[jvs:cigal|CIGAL Home]], 
[[jvs:cigal:manual|CIGAL Manual]], 
[[jvs:cigal:manual:chapter2|Commands List]], 
[[jvs:cigal:manual:help|Manual Help]]