+void wxFrameBase::DoGiveHelp(const wxString& text, bool show)
+{
+#if wxUSE_STATUSBAR
+ if ( m_statusBarPane < 0 )
+ {
+ // status bar messages disabled
+ return;
+ }
+
+ wxStatusBar *statbar = GetStatusBar();
+ if ( !statbar )
+ return;
+
+ wxString help;
+ if ( show )
+ help = text;
+
+ // remember the old status bar text if this is the first time we're called
+ // since the menu has been opened as we're going to overwrite it in our
+ // DoGiveHelp() and we want to restore it when the menu is closed
+ //
+ // note that it would be logical to do this in OnMenuOpen() but under MSW
+ // we get an EVT_MENU_HIGHLIGHT before EVT_MENU_OPEN, strangely enough, and
+ // so this doesn't work and instead we use the ugly trick with using
+ // special m_oldStatusText value as "menu opened" (but it is arguably
+ // better than adding yet another member variable to wxFrame on all
+ // platforms)
+ if ( m_oldStatusText.empty() )
+ {
+ m_oldStatusText = statbar->GetStatusText(m_statusBarPane);
+ if ( m_oldStatusText.empty() )
+ {
+ // use special value to prevent us from doing this the next time
+ m_oldStatusText += _T('\0');
+ }
+ }
+
+ statbar->SetStatusText(help, m_statusBarPane);
+#else
+ wxUnusedVar(text);
+ wxUnusedVar(show);
+#endif // wxUSE_STATUSBAR
+}
+
+