How to check if the mouse is hovering over a button in Unity?

Question

Unity

Hello. Maybe a stupid question, but I had it. There is a window with buttons that are created programmatically. More or less like this:

public Texture one;  // Какая-то текстура

void OnGUI(){
    GUI.Window (2, new Rect (Screen.width * 0.6f, 0, Screen.width * 0.4f, 
 			Screen.height), WindowCharacterUpgrade, "");
}

void WindowCharacterUpgrade(int id){
  if (GUI.Button (new Rect (((Screen.width * 0.4f) / 2) - 20, 20, 40, 40), one)) 
    // Какое-то действие
}

Is it possible to track the mouse pointer over this button, either created in the same window or not? If yes, then how, otherwise I can’t understand ... or will I have to create all the elements not through code and do as it is written just below?
The search only returned answers for non-code generated GUI elements, in which this process was tracked either via onMouseEnter() or via events.

Answer 1

Don't use OnGUI, it's old, slow and cumbersome. Use the new UI, you can start with the official tutorial or guide .