▼ |  | Graphics: Legacy Library

1 | Basic Commands
2 | Position Operations
3 | Color Operations
4 | Draw, Clear, and Flip Operations
5 | World Operations
6 | Miscellaneous Operations
7 | An Example
8 | A More Complicated Example
9 | Protecting Graphics Operations
10 | Mouse Operations
11 | Keyboard Operations
12 | Flushing
13 | Graphics Library as a Unit

Version: 4.1.4
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### 7`` An Example

(open-graphics)
; nothing appears to happen, but the library is initialized...
(define w (open-viewport "practice" 300 300))
; viewport window appears
((draw-line w) (make-posn 30 30) (make-posn 100 100))
; line appears
(close-viewport w)
; viewport disappears
(close-graphics)
; again, nothing appears to happen, but
; unclosed viewports (if any) would disappear

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