Multi-column listboxes scroll horizontally, so each wheel tick must go an
entire page at a time instead of an item at a time. But we have to limit
the amount of scrolling in this case to avoid "jumping over" columns,
if the window is too small.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=22253Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>