I would like to implement the following feature in my program: when a user
drags the mouse 'off the screen' (i.e., out of the viewable range of the
canvas), I'd like the scrolled window containing the canvas to adjust
accordingly, scrolling the canvas to expose previously hidden areas. This
kind of thing is common in spreadsheets.
I assume I have to manipulate the GtkAdjustment objects of the scrolled
window, but it's unclear to me exactly how to do this. Any advice?
Thanks very much in advance,
Rick
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