It could be implemented using the native GtkSearchEntry in GTK+ 3. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73754 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40890 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40874 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775