Gui point to world position

Hi!

I have an ui button in canvas (Screen Space - Camera) and it is aligned to left top corner.
How can i get its coordinates in world space?

ScreenToWorldPoint don’t work for this!

Thanks!

https://forum.unity.com/threads/overlay-canvas-and-world-space-coordinates.291108/

“For case 3 I use Camera.main.ScreenToWorldPoint(rectTransform.transform.position) and it seems to give good results.”

it is don’t work for canvas with render mode Screen Space - Camera!