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Re: Scroll wheel events

On 11/25/03 6:38 AM, Jerry didst favor us with:

> Hi,
>
> I have a few custom controls which I want to add scroll wheel support
> to. It seems that controls don't receive Carbon scroll wheel events, so
> I have to add a handler to the Window or Application and then call
> FindControlUnderMouse. Because these custom control classes are
> independent, at the moment I end up installing one handler per class.
> Of course, I'll be able to improve on this by installing one handler
> and dispatching to the classes, but other controls such as the data
> browser have scroll wheel support and must be installing their own
> handlers. This seems inefficient, and I'm wondering if there's a better
> way. Is there some way to get controls to receive scroll wheel events,
> perhaps?
>
I didn't see any other replies, but I don't know of any other way to handle
them except that I wouldn't go by the mouse location. Instead, I'd go by the
current keyboard focus. For example, if you had two lists, the currently
focused list should respond to the scroll wheel, not the one with the mouse
over it.

Larry
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References: 
 >Scroll wheel events (From: Jerry <email@hidden>)



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