issue with App Designer and WindowButtonDown callback

Question

Thomas Fournier 2021-6-24

回答： T.Nikhil kumar 2024-2-14

Hello,

I need to display a point coordinate in a scatter plot, it works well, I just have to hover my cursor over it:

However, I also need to know my cursor's position when i clic, to do so I created a WindowButtonDown callback on the UIFigure.

But now my point's coordinate doesn't show anymore when I hover my mouse over it,

Do you have any idea where the problem can come from?

I recreated the issue in the attached file

Thank you for your help!

Answer 1

T.Nikhil kumar 2024-2-14

Hello Thomas,

I acknowledge that you are unable to know your cursor’s position after creating a ‘ButtonDownFcn’ callback.

I would recommend you to try this method out:

Click on the ‘datatip’ tool on the top right of the figure.
Now, you can hover over the point to view the coordinates data in a box (datatip).

It might be possible that the new ‘ButtonDownFcn’ callback overrides the existing method of click-or-hover to view the datatip.

Refer to the documentation attached to understand more about ‘datatip’ tool:

Hope this helps!