I created a project using the mouse as the main control.

Then I created a library for connecting with another type of control. This library gives me the position of my pointer. I'd like to activate the mouse click when you press a button, so I can interact with the GUI and the buttons of the GUI.

My intention is not to change the code of the existing project, I would like only to add a class to do the click event.

I try this:

 void Update() {
            if (Input.GetKeyDown(KeyCode.A)) { 
                Event event = new Event();
                event.mousePosition = new Vector2(10f, Screen.height - 10f);
                event.type = EventType.mouseUp;
                Event.current = event;
            }
        } // Update

    void OnGUI() {
        if (!(Event.current.type == EventType.Repaint || Event.current.type == EventType.Layout)) {
            Debug.Log(Event.current);
        }
        if (GUI.Button(new Rect(0f, 0f, 200f, 200f), "")) {
            Debug.Log("Enter");
        }   
    }