How to get the screen X & Y (float or vector 2D)

Hello! I want to make a touch slide game and i need to get the screen X and Y . Can someone help me?

The screen XY of what? The viewport size, UI, projected world coordinates? Describe what you’re trying to do.

The viewport size. It is hard to explain what i want to do

The viewport size. It is hard to
explain what i want to do

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