+#if wxUSE_TIPWINDOW
+ static wxTipWindow* s_tipWindow = NULL;
+
+ if (s_tipWindow)
+ {
+ // Prevent s_tipWindow being nulled in OnIdle,
+ // thereby removing the chance for the window to be closed by ShowHelp
+ s_tipWindow->SetTipWindowPtr(NULL);
+ s_tipWindow->Close();
+ }
+ s_tipWindow = NULL;
+