fixes to menu stock items support (patch 1547639)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41021 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/stockitem.h

@@ -51,6 +51,18 @@ WXDLLEXPORT wxString wxGetStockLabel(wxWindowID id,
 
 #endif
 
+// wxStockHelpStringClient conceptually works like wxArtClient: it gives a hint to
+// wxGetStockHelpString() about the context where the help string is to be used
+enum wxStockHelpStringClient
+{
+    wxSTOCK_MENU        // help string to use for menu items
+};
+
+// Returns an help string for the given stock UI element and for the given "context".
+WXDLLEXPORT wxString wxGetStockHelpString(wxWindowID id,
+                                          wxStockHelpStringClient client = wxSTOCK_MENU);
+
+
 #ifdef __WXGTK20__
 
 #include <gdk/gdktypes.h>