Controls whether the menus for viewport tools, views, and visual styles that are located in the upper-left corner of every viewport are displayed.
| Type: | Integer | 
| Saved in: | Registry | 
| Initial value: | ON (or 1) | 
| 
 OFF (or 0)  | 
 Hides viewport controls.  | 
| 
 ON (or 1)  | 
Displays viewport controls. |