BrightIdeasSoftware.TreeListView.TreeRenderer.DrawExpansionGlyphStyled C# (CSharp) Method

            protected virtual void DrawExpansionGlyphStyled(Graphics g, Rectangle r, bool isExpanded)
            {
                VisualStyleElement element = VisualStyleElement.TreeView.Glyph.Closed;
                if (isExpanded)
                    element = VisualStyleElement.TreeView.Glyph.Opened;
                VisualStyleRenderer renderer = new VisualStyleRenderer(element);
                renderer.DrawBackground(g, r);
            }