private void MouseHook_MouseUp()
        {
            rMouseUpAction?.Invoke(lastLocation);

            //Set color
            DropperColor = PixelReader.GetColorAt(lastLocation);

            //Reset mouse hook
            MouseHook.StopHook();
            MouseHook.LMouseUp         -= MouseHook_MouseUp;
            MouseHook.MouseMoved       -= MouseHook_MouseMoved;
            MouseHook.DisableRMouseDown = false;
            MouseHook.DisableRMouseUp   = false;
        }