+//static const int wxTREE_HITTEST_ONITEMSTATEICON = 0x0100;
+ // on the left of the wxTreeCtrl.
+static const int wxTREE_HITTEST_TOLEFT = 0x0200;
+ // on the right of the wxTreeCtrl.
+static const int wxTREE_HITTEST_TORIGHT = 0x0400;
+ // on the upper part (first half) of the item.
+static const int wxTREE_HITTEST_ONITEMUPPERPART = 0x0800;
+ // on the lower part (second half) of the item.
+static const int wxTREE_HITTEST_ONITEMLOWERPART = 0x1000;
+