diff --git a/include/wx/msw/treectrl.h b/include/wx/msw/treectrl.h
index e2b76ae601..4c621980ef 100644
--- a/include/wx/msw/treectrl.h
+++ b/include/wx/msw/treectrl.h
@@ -287,6 +287,14 @@ private:
     void ClearFocusedItem();
     void SetFocusedItem(const wxTreeItemId& item);
 
+    // check if the given flags (taken from TV_HITTESTINFO structure)
+    // indicate a position "on item": this is less trivial than just checking
+    // for TVHT_ONITEM because we consider that points to the left and right of
+    // item text are also "on item" when wxTR_FULL_ROW_HIGHLIGHT is used as the
+    // item visually spans the entire breadth of the window then
+    bool MSWIsOnItem(unsigned flags) const;
+
+
     // the hash storing the items attributes (indexed by item ids)
     wxMapTreeAttr m_attrs;
 
diff --git a/src/msw/treectrl.cpp b/src/msw/treectrl.cpp
index b408ac740d..6b854a8c84 100644
--- a/src/msw/treectrl.cpp
+++ b/src/msw/treectrl.cpp
@@ -2215,6 +2215,15 @@ bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id_)
     return true;
 }
 
+bool wxTreeCtrl::MSWIsOnItem(unsigned flags) const
+{
+    unsigned mask = TVHT_ONITEM;
+    if ( HasFlag(wxTR_FULL_ROW_HIGHLIGHT) )
+        mask |= TVHT_ONITEMINDENT | TVHT_ONITEMRIGHT;
+
+    return (flags & mask) != 0;
+}
+
 bool wxTreeCtrl::MSWHandleSelectionKey(unsigned vkey)
 {
     const bool bCtrl = wxIsCtrlDown();
@@ -2716,7 +2725,7 @@ wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 
                 m_htClickedItem.Unset();
 
-                if ( !(tvht.flags & TVHT_ONITEM) )
+                if ( !MSWIsOnItem(tvht.flags) )
                 {
                     if ( tvht.flags & TVHT_ONITEMBUTTON )
                     {
@@ -3067,10 +3076,7 @@ wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
                         }
                     }
 
-                    if ( !m_dragStarted &&
-                         (tvht.flags & TVHT_ONITEMSTATEICON ||
-                          tvht.flags & TVHT_ONITEMICON ||
-                          tvht.flags & TVHT_ONITEM) )
+                    if ( !m_dragStarted && MSWIsOnItem(tvht.flags) )
                     {
                         processed = true;
                     }
@@ -3652,7 +3658,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
                 ::ScreenToClient(GetHwnd(), &tvhti.pt);
                 if ( TreeView_HitTest(GetHwnd(), &tvhti) )
                 {
-                    if ( tvhti.flags & TVHT_ONITEM )
+                    if ( MSWIsOnItem(tvhti.flags) )
                     {
                         event.m_item = tvhti.hItem;
                         eventType = (int)hdr->code == NM_DBLCLK