Scrolling Methods
The Listbox can be scrolled both
horizontally and vertically so it has both xview
and yview methods and all their associated forms.
These forms and how to use them are described in detail in Chapter 6.
The
scan method allows you to use
a really fast scrolling method. It is automatically bound to the
second mouse button by the Listbox. Here is how you can do the same
thing within your window:
$mw->bind("Listbox", "<2>",['scan','mark',Ev('x'),Ev('y')]);
$mw->bind("Listbox", "<B2-Motion>",['scan','dragto',Ev('x'),Ev('y')]);
When you click in the window with the
second mouse button and then move your mouse around, you’ll see
the contents of the Listbox zip by at super-fast speed. You could
change the second argument of each bind statement
if you wanted to bind this to another combination of keys/mouse
actions. The bind method is explained in Chapter 15.
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