added (MSW-only) wxListCtrl::OnGetItemColumnAttr() (#10018)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58393 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/listctrl.h

@@ -402,7 +402,7 @@ protected:
 
     // get the item attribute, either by quering it for virtual control, or by
     // returning the one previously set using setter methods for a normal one
-    wxListItemAttr *DoGetItemAttr(long item) const;
+    wxListItemAttr *DoGetItemColumnAttr(long item, long column) const;
 
 
     wxTextCtrl*       m_textCtrl;        // The control used for editing a label
@@ -442,6 +442,12 @@ protected:
     // return the attribute for the item (may return NULL if none)
     virtual wxListItemAttr *OnGetItemAttr(long item) const;
 
+    // return the attribute for the given item and column (may return NULL if none)
+    virtual wxListItemAttr *OnGetItemColumnAttr(long item, long WXUNUSED(column)) const
+    {
+        return OnGetItemAttr(item);
+    }
+
 private:
     // process NM_CUSTOMDRAW notification message
     WXLPARAM OnCustomDraw(WXLPARAM lParam);