This will allow reusing it in wxComboBox implementation as well. Also add SendTextUpdatedEventIfAllowed() which can be used to only send the events if they were not blocked at wxTextEntry level. No real changes otherwise. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63880 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775