How to test if UI Button exists at certain pixel x and y coords (from Touch event)

How to test if UI Button exists at certain pixel x and y coords (I take them from Touch event) ?

In Unity3D 5.2 multi touch stopped to work with UI and I use on-screen buttons to control player and I need button coordinates on screen to re-implement multitouch support for onscreen buttons.

Run an if statement in your code from references in the Update function.

//EXAMPLE

//References
public Button btn1,btn2,btn3;

//Your Update function
void Update(){
if(btn1.transform.position == Vector2(150,90){
//do stuff
}
}