NGUI UIButton Event question

Hi,

I have created 4 buttons which represent 4 direction arrows, Left, Right, Forward and Backwards.

I have a OnPress(bool isPress) function which checks which of the button were pressed and I send information about my x and y axis.

This is the function:

     private static int x = 0;
     private static int y = 0;
     private string currentArrow = "none";
     private Vector2 currentPos = Vector2.zero;
 
     void OnPress(bool isDown)
     {
         Debug.Log("Called " + gameObject.name + " press state: "+isDown);
         if (isDown)
         {
             switch (gameObject.name)
             {
                 case "Up":
                     y = 1;
                     x = 0;
                     break;
                 case "Down":
                     y = -1;
                     x = 0;
                     break;
                 case "Right":
                     x = 1;
                     y = 0;
                     break;
                 case "Left":
                     x = -1;
                     y = 0;
                     break;
                 default:
                     Debug.Log("Error in name");
                     break;
             }
             currentArrow = gameObject.name;
             currentPos = gameObject.transform.position;
         }
         else
         {
             x = 0;
             y = 0;
         }
 
         SetValues(x, y);
     }

This works just fine,

However, when my mouse is pressing a button, and I want it to move while it is pressed, to another collider, and activate it, I can't since I didn't release the last button.

Any idea on how to do it?

I've tried to send messages by myself to OnPress with a false parameter to do it manually, but it still doesn't work right..

I've also tried to use OnHover, but I work with an android device, so it's irrelevant...