How to see if I clicked on a object in opengl C++?

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I'm trying to make a color picker tool using OpenGL, and have made a reasonable demo. When I click a color it uses the glReadPixels function to find the color. This does work however it also takes the color of the background when I click on the background. Is there a way to see if I clicked on an object, here the color picker.

What I have tried:

I have tried nothing so far, as I dont understand how to approach such a problem.

Posted 10-May-19 23:45pm

Member 14074655

Updated 10-May-19 23:51pm

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phil.o · Answer 1 · 2019-05-10T23:51:00

Solution 1

Have you tried some basic examples on how to handle mouse in opengl?
opengl click handler[^]

Posted 10-May-19 23:51pm

phil.o