Learning a field's scroll when its scrollbar is released

[Bob Sneidar]

You can set a variable when the drag starts, then in an idle handler, check for the state of the variable and proceed accordingly. 

Bob S


> On Feb 2, 2026, at 7:54 AM, Craig Newman via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Sorry, I missed the part about doing this in a field. That message is not sent from a field, only from a scrollbar sort of control.
> 
> In fact, very little indeed is sent from the scrollbar of a field. It may be necessary to trap the 
> mouseLeave” message from a transparent rectangular graphic overlying the scrollbar portion of the field. This may be a close as you can get to noticing the terminatiion of the scroll process, and it is not pretty.
> 
> Craig
> 
>> On Feb 1, 2026, at 5:29 PM, David Epstein via use-livecode <use-livecode at lists.runrev.com> wrote:
>> 
>> The scrollBarDrag message is sent while the mouse is down.  If I want to know when the drag has ended, I can trap mouseUp in a scrollbar control.  But this does not seem to work for a scrolling field.  Is there a good way to learn the vScroll of a field when the mouse on the field’s scrollbar has been released?
>> 
>> David Epstein
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