Example Of Using Connect For Events

// Version using dynamic event routing
// Use '''Connect''' instead of event table.
// Robert Roebling, Martin Bernreuther, Lance Zhang, Ryan Norton
 
#include <wx/wx.h>
 
class MyApp : public wxApp
{
   virtual bool OnInit();
};
 
IMPLEMENT_APP(MyApp)
 
class MyFrame : public wxFrame
{
public:
   MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
protected:
   // Do we really need to expose the implementation detail? I guess not.
   void OnQuit(wxCommandEvent& event);
   void OnAbout(wxCommandEvent& event);
private:
   enum {ID_Quit=wxID_HIGHEST + 1, ID_About};
};
 
bool MyApp::OnInit()
{
   wxFrame *frame = new MyFrame("Hello World", wxPoint(50,50),
     wxSize(450,350));
     frame->Show(TRUE);
     SetTopWindow(frame);
     return TRUE;
}
 
MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
	: wxFrame((wxFrame*)NULL, -1, title, pos, size)
{
  // create menubar
  wxMenuBar* menuBar = new wxMenuBar;
  // create menu
  wxMenu* menuFile = new wxMenu;
  // append menu entries
  menuFile->Append(ID_About, "&About...");
  menuFile->AppendSeparator();
  menuFile->Append(ID_Quit, "E&xit");
  // append menu to menubar
  menuBar->Append(menuFile, "&File");
  // set frame menubar
  SetMenuBar(menuBar);
 
  // connect event handlers
  Connect(ID_Quit,wxEVT_COMMAND_MENU_SELECTED,
     wxCommandEventHandler(MyFrame::OnQuit));
  Connect(ID_About,wxEVT_COMMAND_MENU_SELECTED,
     wxCommandEventHandler(MyFrame::OnAbout));
 
  CreateStatusBar();
  SetStatusText("Welcome to wxWidgets");
}
 
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
   Close(TRUE);
}
 
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
   wxMessageBox("wxWidgets Hello World example.","About Hello World",
        wxOK|wxICON_INFORMATION, this);
}

Connect(ID_Quit, wxEVT_COMMAND_MENU_SELECTED,
   (wxObjectEventFunction) (wxEventFunction) (wxCommandEventFunction) &MyFrame::OnQuit);
Connect(ID_About, wxEVT_COMMAND_MENU_SELECTED,
   (wxObjectEventFunction) (wxEventFunction) (wxCommandEventFunction) &MyFrame::OnAbout);