There are plugins that can do this like Widget Context or Widget Logic.
If you want your own solution then it’s pretty easy:
- hook your function with the checkbox on
in_widget_form - hook your widget update function
widget_update_callback(update the widget option) - check if the option was checked using the
widget_display_callbackhook (return false if it is)
Post what you have so far if you need sample code. I’ve implemented a feature like this in one of my themes…