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as you can see now I have six points in this picture, I know that mouse callback function can track one point at one time. I am wondering can I use the mouse callback function to track all the six points at the same time.

best,

as you can see now I have six points in this picture, I know that mouse callback function can track one point at one time. I am wondering can I use the mouse callback function to track all the six points at the same time.

best,