[New-bugs-announce] [issue29559] Detect mouse over lines on canvas while mouse button is down

[Ted Shaneyfelt]

New submission from Ted Shaneyfelt:

There way mouse captures are done, mouse-over events seem to be disabled while dragging. 

This makes it difficult to provides hints as feedback, and more complicated than it should be to detect when dropping over a particular line object. 

Tk may not directly support it, but is there any way of getting into its guts to provide an option to re-enable mouse-over events while dragging? Or even providing a tuple with the pending mouse-overs upon release? or perhaps even simulate a mouse-up-mouse-down sequence to allow the events to propagate through and consume the noise within tkinter? Or even detect that there is a pending mouseover waiting for the mouseup event and delivering it along with the mouseup or notifying within the event that there is one pending?

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components: Tkinter
messages: 287789
nosy: Ted Shaneyfelt2
priority: normal
severity: normal
status: open
title: Detect mouse over lines on canvas while mouse button is down
type: enhancement
versions: Python 3.6

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29559>
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