XUPPERWINDOW

Syntax: | `SET XUPPERWINDOW n SET %XUPPERWINDOW n GET XUPPERWINDOW { n } GET %XUPPERWINDOW { n }`
Default value: | `%XUPPERWINDOW = 100.0`

`XUPPERWINDOW` determines the right edge of the graphics sub-window. There are two forms:

`XUPPERWINDOW` | → | the right edge of the graphics sub-window, in world coordinate units
`%XUPPERWINDOW` | → | the right edge, expressed as a percentage of the width of the graphics world window

XLOWERWINDOW
YLOWERWINDOW