bool OnExecute(const wxString& topic, wxChar*data, int size, wxIPCFormat format);
wxChar *OnRequest(const wxString& topic, const wxString& item, int *size, wxIPCFormat format);
bool OnExecute(const wxString& topic, wxChar*data, int size, wxIPCFormat format);
wxChar *OnRequest(const wxString& topic, const wxString& item, int *size, wxIPCFormat format);