void Update ()
{
if (UICamera.inputHasFocus)
{
if (Input.GetKeyDown(KeyCode.E))
{
SendMessage("OnPress", true, SendMessageOptions.DontRequireReceiver);
}
if (Input.GetKeyUp(KeyCode.E))
{
SendMessage("OnPress", false, SendMessageOptions.DontRequireReceiver);
SendMessage("OnClick", SendMessageOptions.DontRequireReceiver);
}
}
}