| [Overview][Constants][Types][Procedures and functions][Variables][Index] | 
Clear the current viewport
Source position: graphh.inc line 654
| var ClearViewPort: clrviewproc = ; | 
Clears the current viewport. The current background color is used as filling color. The pointer is set at (0,0).
None.
| 
 | Clear the complete screen | |
| 
 | Set the graphical drawing window | |
| 
 | Set background drawing color |