UnityEngine.UI.Mask.OnDisable C# (CSharp) Method

        protected override void OnDisable()
        {
            base.OnDisable();
            if (this.graphic != null)
            {
                this.graphic.SetMaterialDirty();
                this.graphic.canvasRenderer.hasPopInstruction = false;
                this.graphic.canvasRenderer.popMaterialCount = 0;
            }
            StencilMaterial.Remove(this.m_MaskMaterial);
            this.m_MaskMaterial = null;
            StencilMaterial.Remove(this.m_UnmaskMaterial);
            this.m_UnmaskMaterial = null;
            MaskUtilities.NotifyStencilStateChanged(this);
        }