第一个wxWidgets Demo简单实现，及VC2008下的环境设置！

一个wxWidgets简单设置及实现！用于学习wxWidgets入门的实例！

建立一个WIN32项目空工程，接着设置一下该工程的VS2008开发环境，设置方法如下：

一、中文环境的VS2008如下：

设置项: C/C++/常规/附加包含目录
设置内容: C:/wxWidgets-2.8.10/include;C:/wxWidgets-2.8.10/include/msvc

设置项: C/C++/预处理器/预处理器定义
设置内容:WIN32;_DEBUG;_WINDOWS;__WXMSW__;__WXDEBUG__

设置项: C/C++/代码生成/运行库
设置内容: 多线程DLL （/MD）

设置项: 链接器/常规/附加库目录
设置内容: C:/wxWidgets-2.8.10/lib/vc_lib

设置项: 链接器/输入/附加依赖项
设置内容:kernel32.lib user32.lib gdi32.lib comdlg32.lib winspool.lib winmm.lib shell32.lib

comctl32.lib ole32.lib oleaut32.lib uuid.lib rpcrt4.lib advapi32.lib wsock32.lib odbc32.lib

opengl32.lib

二、英文环境设置如下：

1，%WXPATH%可以置换为绝对路径，如：安装包路径 c:/wxWidgets 一定注意路径，别写错了！

2，%WXPATH%也可以在我的电脑-》属性-》环境变量中添加，相应上就OK了！

Configuration Properties/C/C++/General/Additional Include Directories:
%WXPATH%/include;%WXPATH%/include/msvc

Configuration Properties/C/C++/Preprocessor/Preprocessor Definitions:
WIN32;NDEBUG;_WINDOWS;__WXMSW__
如果是[Debug]就还要加上__WXDEBUG__，变成：
WIN32;_DEBUG;_WINDOWS;__WXMSW__;__WXDEBUG__

Configuration Properties/C/C++/Code Generation/Runtime Library:
Multi-threaded (/MT)
Multi-threaded Debug(/MTd) 如果是DEbug就设这行,也可以根据自已实行情况调试

Configuration Properties/Linker/General/Additional Library Directories:
%WXPATH%/lib/vc_lib

Configuration Properties/Linker/Input/Additional Dependencies:
kernel32.lib user32.lib gdi32.lib comdlg32.lib winspool.lib winmm.lib shell32.lib comctl32.lib ole32.lib oleaut32.lib uuid.lib rpcrt4.lib advapi32.lib wsock32.lib odbc32.lib opengl32.lib

这些静态链接库都是一些可能会使用到的 Windows 系统的库，根据需要增减，比如我从来不用odbc，就不需要在这里添加 odbc32.lib。而 wxWidgets 的静态库会自动添加到工程中，不需要在这里设置，在 %WXPATH%/include/msvc/wx/setup.h 文件中可以看到加载这些库的代码。
编译成依赖 DLL 的执行文件还需要加上预处理指令 WXUSINGDLL
用 UNICODE 编译则需要加上预处理指令 _UNICODE
还有一种 Universal 编译，要加上预处理指令 __WXUNIVERSAL__
这样一个普通的 wxWdigets 项目就设置好了。

复制以下代码添加到你的CPP文件中，进行编译，测试，OK！

/////////////////////////////////////////////////////////////////////////////
// Name:        minimal.cpp
// Purpose:     Minimal wxWidgets sample
// Author:      Julian Smart
// Modified by:
// Created:     04/01/98
// RCS-ID:      $Id: minimal.cpp 43915 2006-12-11 09:33:34Z CE $
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
#pragma hdrstop
#endif

// for all others, include the necessary headers (this file is usually all you
// need because it includes almost all "standard" wxWidgets headers)
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif

// ----------------------------------------------------------------------------
// resources
// ----------------------------------------------------------------------------

// the application icon (under Windows and OS/2 it is in resources and even
// though we could still include the XPM here it would be unused)
#if !defined(__WXMSW__) && !defined(__WXPM__)
#include "../sample.xpm"
#endif

// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------

// Define a new application type, each program should derive a class from wxApp
class MyApp : public wxApp
{
public:
// override base class virtuals
// ----------------------------

// this one is called on application startup and is a good place for the app
// initialization (doing it here and not in the ctor allows to have an error
// return: if OnInit() returns false, the application terminates)
virtual bool OnInit();
};

// Define a new frame type: this is going to be our main frame
class MyFrame : public wxFrame
{
public:
// ctor(s)
MyFrame(const wxString& title);

// event handlers (these functions should _not_ be virtual)
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);

private:
// any class wishing to process wxWidgets events must use this macro
DECLARE_EVENT_TABLE()
};

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

// IDs for the controls and the menu commands
enum
{
// menu items
Minimal_Quit = wxID_EXIT,

// it is important for the id corresponding to the "About" command to have
// this standard value as otherwise it won't be handled properly under Mac
// (where it is special and put into the "Apple" menu)
Minimal_About = wxID_ABOUT
};

// ----------------------------------------------------------------------------
// event tables and other macros for wxWidgets
// ----------------------------------------------------------------------------

// the event tables connect the wxWidgets events with the functions (event
// handlers) which process them. It can be also done at run-time, but for the
// simple menu events like this the static method is much simpler.
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(Minimal_Quit,  MyFrame::OnQuit)
EVT_MENU(Minimal_About, MyFrame::OnAbout)
END_EVENT_TABLE()

// Create a new application object: this macro will allow wxWidgets to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also implements the accessor function
// wxGetApp() which will return the reference of the right type (i.e. MyApp and
// not wxApp)
IMPLEMENT_APP(MyApp)

// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// the application class
// ----------------------------------------------------------------------------

// 'Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
// call the base class initialization method, currently it only parses a
// few common command-line options but it could be do more in the future
if ( !wxApp::OnInit() )
return false;

// create the main application window
MyFrame *frame = new MyFrame(_T("Minimal wxWidgets App"));

// and show it (the frames, unlike simple controls, are not shown when
// created initially)
frame->Show(true);

// success: wxApp::OnRun() will be called which will enter the main message
// loop and the application will run. If we returned false here, the
// application would exit immediately.
return true;
}

// ----------------------------------------------------------------------------
// main frame
// ----------------------------------------------------------------------------

// frame constructor
MyFrame::MyFrame(const wxString& title)
: wxFrame(NULL, wxID_ANY, title)
{
// set the frame icon
SetIcon(wxICON(sample));

#if wxUSE_MENUS
// create a menu bar
wxMenu *fileMenu = new wxMenu;

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

fileMenu->Append(Minimal_Quit, _T("E&xit/tAlt-X"), _T("Quit this program"));

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

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

#if wxUSE_STATUSBAR
// create a status bar just for fun (by default with 1 pane only)
CreateStatusBar(2);
SetStatusText(_T("Welcome to wxWidgets!"));
#endif // wxUSE_STATUSBAR
}

// event handlers

void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
// true is to force the frame to close
Close(true);
}

void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxMessageBox(wxString::Format(
_T("Welcome to %s!/n")
_T("/n")
_T("This is the minimal wxWidgets sample/n")
_T("running under %s."),
wxVERSION_STRING,
wxGetOsDescription().c_str()
),
_T("About wxWidgets minimal sample"),
wxOK | wxICON_INFORMATION,
this);
}

错误处理：
一、打不到头文件 wx/wx.h
解决方案：查找以上路径设置，查看安装包的路径如：C:/wxWidgets

二、找不到 mondrian.xpm
解决方案: 此文件是一个图形资源，COPY(拷贝)一个mondrian.xpm放在你的工程下面,跟你的CPP文件同一

级目录！

三、error LNK2005: _exit 已经在 LIBCMTD.lib(crt0dat.obj) 中定义
设置工程属性:C/C++/代码生成/运行库 这一项的选项为多线程DLL （/MD），如还有错误，可以试选其

它几项。