void wxGUIEditorGraphicBBS::OnOpenDiagram(wxCommandEvent& event) {
wxFileDialog * openFileDialog = new wxFileDialog(this, wxT("Open diagram"),
wxEmptyString, wxT(""), wxT("*.bbg"), wxOPEN | wxFILE_MUST_EXIST);
void wxGUIEditorGraphicBBS::OnOpenDiagram(wxCommandEvent& event) {
wxFileDialog * openFileDialog = new wxFileDialog(this, wxT("Open diagram"),
wxEmptyString, wxT(""), wxT("*.bbg"), wxOPEN | wxFILE_MUST_EXIST);