UnityEngine.UI.CanvasScaler c = GetComponent<UnityEngine.UI.CanvasScaler>();
c.uiScaleMode = UnityEngine.UI.CanvasScaler.ScaleMode.ScaleWithScreenSize;
UnityEngine.UI.CanvasScaler c = GetComponent<UnityEngine.UI.CanvasScaler>();
c.uiScaleMode = UnityEngine.UI.CanvasScaler.ScaleMode.ScaleWithScreenSize;