moved combobox styles from defs.to to combobox.h; added wxTE/wxCB_FILENAME styles (MSW only for now); show them in the widgets sample and use for file/dir pickers text controls

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40367 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/wrapshl.h

@@ -20,6 +20,8 @@
 
 #include <shlobj.h>
 
+#include "wx/msw/winundef.h"
+
 // ----------------------------------------------------------------------------
 // wxItemIdList implements RAII on top of ITEMIDLIST
 // ----------------------------------------------------------------------------
@@ -77,5 +79,12 @@ private:
     DECLARE_NO_COPY_CLASS(wxItemIdList)
 };
 
+// enable autocompleting filenames in the text control with given HWND
+//
+// this only works on systems with shlwapi.dll 5.0 or later
+//
+// implemented in src/msw/utilsgui.cpp
+extern bool wxEnableFileNameAutoComplete(HWND hwnd);
+
 #endif // _WX_MSW_WRAPSHL_H_