(inserting an item at pos == GetCount() should be the same as appending and not an error) git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4818 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
(inserting an item at pos == GetCount() should be the same as appending and not an error) git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4818 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775