WxWidgets入门

/*============================================================================ 
 Name        : Exercise.cpp 
 Author      : Haier 
 Version     : 1.01 
 Copyright   : Copyright (c) 2014 
 Description : WxWidgets program in C++, Ansi-style, Compile by Eclipse 
 ============================================================================*/  
#include "wx/wx.h"
#include "mondrian.xpm"

// Declare our main frame class
class MyFrame : public wxFrame
{
public:
    // Constructor
    MyFrame(const wxString& title);

    // Event handlers
    void OnQuit(wxCommandEvent& event);
    void OnAbout(wxCommandEvent& event);

private:
    // This class handles events
    DECLARE_EVENT_TABLE()
};

BEGIN_EVENT_TABLE(MyFrame,wxFrame)
    EVT_MENU(wxID_ABOUT,MyFrame::OnAbout)
    EVT_MENU(wxID_EXIT,MyFrame::OnQuit)
END_EVENT_TABLE()

void MyFrame::OnAbout(wxCommandEvent& event)
{
    wxString msg;
    msg.Printf(wxT("Hello and welcome to %s"),
               wxVERSION_STRING);

    wxMessageBox(msg, wxT("About Minimal"),
                 wxOK | wxICON_INFORMATION, this);
}

void MyFrame::OnQuit(wxCommandEvent& event)
{
    // Destroy the frame
    Close();
}

MyFrame::MyFrame(const wxString& title)
       : wxFrame(NULL, wxID_ANY, title)
{
    // Set the frame icon
    SetIcon(wxIcon(mondrian_xpm));

    // Create a menu bar
    wxMenu *fileMenu = new wxMenu;

    // The "About" item should be in the help menu
    wxMenu *helpMenu = new wxMenu;
    helpMenu->Append(wxID_ABOUT, wxT("&About...\tF1"),
                     wxT("Show about dialog"));

    fileMenu->Append(wxID_EXIT, wxT("E&xit\tAlt-X"),
                     wxT("Quit this program"));

    // Now append the freshly created menu to the menu bar...
    wxMenuBar *menuBar = new wxMenuBar();
    menuBar->Append(fileMenu, wxT("&File"));
    menuBar->Append(helpMenu, wxT("&Help"));

    // ... and attach this menu bar to the frame
    SetMenuBar(menuBar);

    // Create a status bar just for fun
    CreateStatusBar(2);
    SetStatusText(wxT("Welcome to wxWidgets!"));
}


// Declare the application class
class MyApp : public wxApp
{
public:
    // Called on application startup
    virtual bool OnInit();
};

// Give wxWidgets the means to create a MyApp object
IMPLEMENT_APP(MyApp)
// Implements MyApp& GetApp()
DECLARE_APP(MyApp)

bool MyApp::OnInit()
{
    MyFrame *frame=new MyFrame(wxT("Minimal wxWidgets App"));
    frame->Show(true);

    return true;
}