Try to avoid sending a string through mbstowcs() when already Unicode

(added #if wxUSE_UNICODE etc).


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_2_BRANCH@6945 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/tbar95.cpp

@@ -707,6 +707,9 @@ bool wxToolBar::MSWOnNotify(int WXUNUSED(idCtrl),
         }
         else
         {
+#if wxUSE_UNICODE
+            ttText->lpszText = (wxChar *)help.c_str();
+#else
             // VZ: I don't know why it happens, but the versions of
             //     comctl32.dll starting from 4.70 sometimes send TTN_NEEDTEXTW 
             //     even to ANSI programs (normally, this message is supposed
@@ -733,6 +736,7 @@ bool wxToolBar::MSWOnNotify(int WXUNUSED(idCtrl),
             dst[lenUnicode] = 0;
 
             delete [] pwz;
+#endif
         }
     }