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+--- Thread: [Tkinter] Finding out what's under the cursor (/thread-25330.html)
Finding out what's under the cursor - sabresong - Mar-27-2020
I'm new to Python, and way out of practice (15+ years out of practice) with any sort of programming. I don't have example code as I'm in the planning phase, and I'm not really sure how to ask what I'm looking for, so please bear with me.
I'm working on a project that will have a canvas. The user will be able to draw boxes and assign properties to the boxes.
I'd like to know if there's a way to detect whether a user's box exists at the mouse coordinates so that I can take one set of actions if there's no box there and get the user-defined properties of the box if there is one.
Most of this I can figure out. But how does one detect whether there's a box under the cursor if the box isn't a tkinter widget?
RE: Finding out what's under the cursor - deanhystad - Mar-27-2020
Why wouldn't it be a tkinter (or some other GUI tookit) widget? The base class for widgets is a thing that knows what to do when you click on it or type in it. Sounds like that is something you want. If you need a different appearance you can subclass an existing widget and override the paint method.
RE: Finding out what's under the cursor - Larz60+ - Mar-27-2020
use:
x = root.winfo_pointerx() - root.winfo_rootx() y = root.winfo_pointery() - root.winfo_rooty()
RE: Finding out what's under the cursor - sabresong - Mar-28-2020
Thank you! I think I was a little confused about widgets.