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ScrollWindow()
Scroll a window up/down left/right
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Syntax
ScrollWindow( <hWnd>, <nChangeX>, <nChangeY>,
              [ <aScroll> ] , [ <aClip> ] )   -->   nil

Arguments
<hWnd> is the handle of the window.

<nChangeX> is an integer specifying the amount to scroll
horizontally.  Use a negative value to scroll to the left.

<nChangeY> is an integer specifying the amount to scroll
vertically.  Use a negative value to scroll up.

<aScroll> is an optional array containing four integers
{ left, top, right, bottom } specifying the rectangular part of
the client area to be scrolled.  (The default is the entire
client area.)

<aClip> is an optional array containing four integers { left,
top, right, bottom } specifying a rectangular clipping area.
This rectangle takes precedence over <aScroll>, so only bits
in <aClip> are scrolled.  (The default is to use <aScroll>
unchanged.)

Returns
NIL.

Description
The window is scrolled as specified.

Example
ScrollWindow( hWnd, 0, -10 )