The native IAutoComplete implementation takes care to retrieve the completions from a background thread to prevent the UI from freezing while they're being generated, but we worked against it by always generating all the completions from the main thread and just enumerating them from the background one. Change this now and call wxTextCompleter::GetCompletions() method from the background thread itself to never block the main one. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67514 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775