How to disable an event previously enabled

[enzotib]

I am trying yo create a cursor slider: it works fine on the local machine, but it's slow on the network.
I am trying several things to improve the slider.
Now, I would like to try disabling events while the canvas is redrawn in response to a previous event, but I don't know how to disable an event once it has been setup. There is a way? Thank you

[martinRenou]

Hey, would setting continuous_update=False to your slider work? This will send the event only when you are done moving the slider.

e.g.

from ipywidgets import IntSlider
slider = IntSlider(continous_update=False)

[martinRenou]

To answer the question more properly, there is currently no API to remove an event handler, but this would be handy to add. Would you mind opening an issue asking for this feature?

[martinRenou]

Actually there is an API for removing an event handler:

canvas.on_mouse_move(my_handler)

# Later on remove it
canvas.on_mouse_move(my_handler, remove=True)