+// ----------------------------------------------------------------------------
+// wxTreeCtrl flags
+// ----------------------------------------------------------------------------
+
+#define wxTR_NO_BUTTONS 0x0000 // for convenience
+#define wxTR_HAS_BUTTONS 0x0001 // draw collapsed/expanded btns
+#define wxTR_NO_LINES 0x0004 // don't draw lines at all
+#define wxTR_LINES_AT_ROOT 0x0008 // connect top-level nodes
+#define wxTR_TWIST_BUTTONS 0x0010 // still used by wxTreeListCtrl
+
+#define wxTR_SINGLE 0x0000 // for convenience
+#define wxTR_MULTIPLE 0x0020 // can select multiple items
+#define wxTR_EXTENDED 0x0040 // TODO: allow extended selection
+#define wxTR_HAS_VARIABLE_ROW_HEIGHT 0x0080 // what it says
+
+#define wxTR_EDIT_LABELS 0x0200 // can edit item labels
+#define wxTR_ROW_LINES 0x0400 // put border around items
+#define wxTR_HIDE_ROOT 0x0800 // don't display root node
+
+#define wxTR_FULL_ROW_HIGHLIGHT 0x2000 // highlight full horz space
+
+#ifdef __WXGTK20__
+#define wxTR_DEFAULT_STYLE (wxTR_HAS_BUTTONS | wxTR_NO_LINES)
+#else
+#define wxTR_DEFAULT_STYLE (wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT)
+#endif
+
+// deprecated, don't use
+#define wxTR_MAC_BUTTONS 0
+#define wxTR_AQUA_BUTTONS 0
+