link wipe
May 2, 2001; Ralph E. Griswold
Requires: Version 9 graphics
This file is in the public domain.
wipe(window, color, direction, x, y, w, h) "wipes" a rectangular area of
window to the specified color. The direction of wiping can be any one of:
"right" from left to right
"left" from right to left
"down" from top to bottom
"up from bottom to top
"left-right" from left and right toward center
"up-down" from top and bottom toward center
"in" from outside to inside
The default direction is "right".
The default color is the background color of the window.
x, y is the top left corner of the area and w and h are the width and
height. An omitted value defaults to the one for the entire window.