Mousewheel scroll issue

From: Al Vas (alex_at_au.com.favour)
Date: 10/29/03 

Date: Wed, 29 Oct 2003 10:03:35 +1100

Hi,

I asked the question below in relation to Infopower grids and was told that
I should somehow capture the starting and stopping of the mouse wheel. I
was then told that how to do this is really a general Delphi query. Anyone
with any advise would be very much appreciated.

Regards

Alex

I have a client using the mousewheel predominantly to scroll through grids.
Our app has a grid that does some calculations on change of records. What I
am finding is that, if the user scrolls using the mousewheel very qucikly,
then the app tries to calculate for each record, creating an unacceptable
delay, and the feeling that the app might be hung. It eventually comes back
correctly.

Question is how to stop calculations of record movements until the wheel
mouse has stopped and the record has settled. I imagine I would need to
track when the mousewheel action starts and ends, or are there any other
ideas?

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