[Lazarus] Scroll Wheel

Chris Kelling kellingc at cox.net
Fri Apr 11 20:43:23 CEST 2014

I did a search on mouse wheel event delphi - I came up with a lot of articles, most mentioning OnMessage event. Then there was this article, which I've not read all the way, but you may find useful. I'm not sure if this was ported to Lazarus, but I've found referencing Delphi does garner solutions most times. 



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> On Apr 11, 2014, at 13:45, Timothy Groves <the.tail.kinker at gmail.com> wrote:
> I have several TEdit objects in my form, and because they handle only integer data, I'd like to use my scroll wheel to edit their values.  However, there is no OnScrollWheel event that I can see.
> Since scroll wheels are passed as mouse clicks, I thought to examine the OnMouseDown/OnMouseUp events, but nothing is passed to indicate which button is being pressed.
> So either Google has failed me, or I have failed Google, but either way, I can't find the answer on the net after an hour of searching.  Can anyone point me in the right direction?
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