Screen (gb.ncurses)
Represents the physical screen in Ncurses
This class can be used like an object by creating a hidden instance on demand.
This class is not creatable.
| Cursor | Sets the cursor mode, must be between 0 and 2 | 
| Echo | Echo the input characters modes 0 or 1 | 
| H | Returns the number of lines on the screen | 
| Height | Returns the number of lines on the screen | 
| Input | Sets the input mode for the screen | 
| W | Returns the number of characters(width) displayed on the screen | 
| Width | Returns the number of characters(width) displayed on the screen | 
Static methods
| Beep | Let the terminal beep | 
| Flash | Turn Screen to reverse video and wait a short interval then turn it back | 
| Refresh | Rewrite the physical screen for the screen buffer. | 
| Resize | Resize the screen to number of characters across(width)
and number of characters down(height) | 
| Resume | Resume screen updates after suspend | 
| Suspend | Stop screen's automatic updates | 
Events
| Resize | Called when a screen is resized |