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HowTo: Synchronise Scroll Position of Two ListView Controls

P: n/a
Can anyone suggest how to keep two ListView controls synchronised?

It is a common scenario: two ListView controls, side-by-side, containing
similar data. I want to scroll one control and have the other scroll

I have tried intercepting the WM_VSCROLL message and sending it on to the
second control, but this only works when the user clicks the up and down
scroll buttons, or clicks above or below the elevator.

If the user drags the elevator nothing happens, even though the WM_VSCROLL
messages are still getting passed on.

Another technique I have tried is to send an explicit LVM_SCROLL message to
the second control, but the synchronisation is jerky, and only completely
synchronises when the elevator is released.

[Incidentally, another point is that when I resize the form containing my
two ListView controls, I resize the controls to make them each occupy half
the form. When I do this they both flicker madly. Is there any way to stop
the flickering? Enabling double-buffering doesn't make a blind bit of


Nov 28 '06 #1
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