first phase of transition to unified Unicode build:

1. changed c_str() to return wxCStrData (implicitly convertible to wxChar*)
2. added template type-safe wrappers for vararg functions
3. added wxUniChar class representing single Unicode character
4. changed wxString::operator[] and wxString::iterator to return wxUniChar


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44865 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/helpext.cpp

@@ -457,10 +457,15 @@ bool wxExtHelpController::KeywordSearch(const wxString& k,
         break;
 
     default:
-        idx = wxGetSingleChoiceIndex(
-            showAll ? _("Help Index") : _("Relevant entries:"),
-            showAll ? _("Help Index") : _("Entries found"),
-            idx, choices);
+        if (showAll)
+            idx = wxGetSingleChoiceIndex(_("Help Index"),
+                                         _("Help Index"),
+                                         idx, choices);
+        else
+            idx = wxGetSingleChoiceIndex(_("Relevant entries:"),
+                                         _("Entries found"),
+                                         idx, choices);
+
         if (idx >= 0)
             rc = DisplayHelp(urls[idx]);
         break;