What are the Tkinter events for horizontal edge scrolling (in Linux)?

Question

I have a Python Tkinter Text widget with scrollbars. I would like to define my own method for using horizontal edge scrolling on my laptop\'s touchpad. However, I don\'t kno

Answer 1

I investigated code relating to printing general events, made code to do that for button presses (not just key presses) and I saw what event.num is for the horizontal mousewheel. So, I did the following solution:

I don't think there are event names for horizontal mouse scrolling (tell me if I'm wrong), but there do appear to be event numbers (which are 6 for scrolling left and 7 for scrolling right). While "" and "" don't seem to work, horizontal edge scrolling is still possible in Tkinter in Python 3.5.3 on Linux (I haven't tested anything else).

You'll need to bind "" instead of "" and "", and make a handler something like this:

...
    self.bind("

", self.touchpad_events) ... def touchpad_events(self, event): if event.num==6: self.xview_scroll(-10, "units") return "break" elif event.num==7: self.xview_scroll(10, "units") return "break"

I do a return "break" in each section of the if/elif statement because we don't want to return "break" all the time and interrupt other button events (only when the horizontal mousewheel is scrolled); I mean, if you break all the time regular left-clicking won't work anymore (unless you program it in), and stuff like that. I just do 10 and -10 instead of event.delta/120 because it gives me the following error otherwise for some odd reason, and just putting in numbers manually seems to work great:

tkinter.TclError: expected integer but got "0.0"

Anyway, I tested this solution and it works. Problem solved. :)