FREEZE_VP freezes a specified viewport.
---->(FREEZE_VP)---|viewport|---->
This action has no options. The specified viewport's graphics
output is frozen.
Use this action when you do not want viewport redraws to
occur. For example, if you are making several changes to a
very large model (perhaps by reading a file of commands), time
can be saved by freezing the viewports, loading the file,
then unfreezing the viewports.
Newly created workplanes and parts are added to the drawlist
of the viewport.
The results of the operations will not be visible until the
viewport is unfrozen using UNFREEZE_VP.
The following parameter sequence freezes "vport1".
FREEZE_VP "vport1"
All viewport names must be enclosed by double quotes (" ").
LOCK_VP_DRAWLIST terminate action
UNFREEZE_VP terminate action
SELECT_VP_SA subaction