CLEANSCREENSTATE system variable
Function Description:
The CLEANSCREENSTATE system variable is used to specify the full screen state to be turned on or off.
(Read-Only)
Type : Integer 
Saved in : Not saved
Initial value : 0 
Range : 0,1
System Variable Value:
0 : turn off
1 : turn on
Related tutorial video:
- Ribbon 00:33
 - Toolbars 00:47
 - Menus and Shortcut Menus 00:47
 - View 01:43
 - Extrude 01:44
 - Visual Style 01:47
 - Enter command on the command line 01:50
 - Cleanscreenoff 02:09
 - Cleanscreenon 02:09
 - Cleanscreenstate system variable 02:09
 - Status bar related setting 02:21
 - Dynamic input 02:28
 - Options command 02:39
 
Above video sources from TUTORIAL - GETTING STARTED WITH GSTARCAD, enrol now for free.