![[index]](../icons/index.gif)
Next: Pixels
Up: DrawClear and Flip
Previous: DrawClear and Flip
-
((draw-viewport viewport) color)
Takes a viewport descriptor. It returns a
function that colors the entire contents of viewport.
The optional color argument defaults to black.
-
((clear-viewport viewport))
Takes a viewport descriptor. It returns a
function that whitens the entire contents of viewport.
-
((flip-viewport viewport))
Takes a viewport descriptor.
It returns a function that flips the contents of viewport.
-
(copy-viewport source-viewport destination-viewport)
Takes two viewport descriptors.
It copies the source-viewport into the destination-viewport.
PLT