Como exibir o menu com wxWidgets?

Programação C e C++
#1

Pessoal, eu estou fazendo uma aplicação em C++ com wxWidgets. Na aplicação eu fiz um menu mas mesmo com o código correto, o menu não aparece no frame. Alguém sabe o que fazer?

MenuMain.cpp:

#include "MenuMain.h"
#include <wx/msgdlg.h>

#include <wx/string.h>
#include <wx/intl.h>

enum wxbuildinfoformat {short_f, long_f};

wxString wxbuildinfo(wxbuildinfoformat format){
    wxString wxbuild(wxVERSION_STRING);

    if(format == long_f){
        #if defined(__WXMSW__)
                wxbuild << _T("-Windows");
        #elif defined(__UNIX__)
                wxbuild << _T("-Linux");
        #endif

        #if wxUSE_UNICODE
                wxbuild << _T("-Unicode build");
        #else
                wxbuild << _T("-ANSI build");
        #endif
    }

    return wxbuild;
}

const long MenuFrame::ID_PANEL1 = wxNewId();
const long MenuFrame::idMenuQuit = wxNewId();
const long MenuFrame::idMenuAbout = wxNewId();
const long MenuFrame::ID_STATUSBAR1 = wxNewId();

BEGIN_EVENT_TABLE(MenuFrame,wxFrame)

END_EVENT_TABLE()

MenuFrame::MenuFrame(wxWindow* parent,wxWindowID id){
    wxMenuItem* MenuItem2;
    wxMenuItem* MenuItem1;
    wxMenu* Menu1;
    wxMenuBar* MenuBar1;
    wxMenu* Menu2;
    Create(parent, id, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_STYLE, _T("id"));
    SetClientSize(wxSize(635,437));
    Panel1 = new wxPanel(this, ID_PANEL1, wxPoint(352,152), wxDefaultSize, wxTAB_TRAVERSAL, _T("ID_PANEL1"));
    MenuBar1 = new wxMenuBar();
    Menu1 = new wxMenu();
    MenuItem1 = new wxMenuItem(Menu1, idMenuQuit, _("Quit\tAlt-F4"), _("Quit the application"), wxITEM_NORMAL);
    Menu1->Append(MenuItem1);
    MenuBar1->Append(Menu1, _("&File"));
    Menu2 = new wxMenu();
    MenuItem2 = new wxMenuItem(Menu2, idMenuAbout, _("About\tF1"), _("Show info about this application"), wxITEM_NORMAL);
    Menu2->Append(MenuItem2);
    MenuBar1->Append(Menu2, _("Help"));
    SetMenuBar(MenuBar1); //Era para o menu ser exibido com este comando
    StatusBar1 = new wxStatusBar(this, ID_STATUSBAR1, 0, _T("ID_STATUSBAR1"));
    int __wxStatusBarWidths_1[1] = { -1 };
    int __wxStatusBarStyles_1[1] = { wxSB_NORMAL };
    StatusBar1->SetFieldsCount(1,__wxStatusBarWidths_1);
    StatusBar1->SetStatusStyles(1,__wxStatusBarStyles_1);
    SetStatusBar(StatusBar1);
    Connect(idMenuQuit,wxEVT_COMMAND_MENU_SELECTED,(wxObjectEventFunction)&MenuFrame::OnQuit);
    Connect(idMenuAbout,wxEVT_COMMAND_MENU_SELECTED,(wxObjectEventFunction)&MenuFrame::OnAbout);
    Center();
    SetTitle("Menu");
}

MenuMain.h:

#ifndef MENUMAIN_H
#define MENUMAIN_H
#include <wx/menu.h>
#include <wx/panel.h>
#include <wx/statusbr.h>
#include <wx/frame.h>
class MenuFrame: public wxFrame{
    public:
        MenuFrame(wxWindow* parent,wxWindowID id = -1);
        virtual ~MenuFrame();
    private:
        void OnQuit(wxCommandEvent& event);
        void OnAbout(wxCommandEvent& event);
        static const long ID_PANEL1;
        static const long idMenuQuit;
        static const long idMenuAbout;
        static const long ID_STATUSBAR1;
        wxPanel* Panel1;
        wxStatusBar* StatusBar1;
        DECLARE_EVENT_TABLE()
};
#endif

MenuApp.h:

#include "MenuApp.h"
#include "MenuMain.h"
#include <wx/image.h>
IMPLEMENT_APP(MenuApp);
bool MenuApp::OnInit(){
    bool wxsOK = true;
    wxInitAllImageHandlers();
    if( wxsOK ){
    	MenuFrame* Frame = new MenuFrame(0);
    	Frame->Show();
    	SetTopWindow(Frame);
    }
    return wxsOK;
}

MenuApp.h:

#ifndef MENUAPP_H
#define MENUAPP_H
#include <wx/app.h>
class MenuApp : public wxApp{
    public:
        virtual bool OnInit();
};
#endif