这是一本学习 window编程的很好的参考教材

				// MainDLL.cpp : Defines the initialization routines for the DLL.
				//
				
				#include "stdafx.h"
				#include "MainDLL.h"
				
				#ifdef _DEBUG
				#define new DEBUG_NEW
				#undef THIS_FILE
				static char THIS_FILE[] = __FILE__;
				#endif
				
				//
				//	Note!
				//
				//		If this DLL is dynamically linked against the MFC
				//		DLLs, any functions exported from this DLL which
				//		call into MFC must have the AFX_MANAGE_STATE macro
				//		added at the very beginning of the function.
				//
				//		For example:
				//
				//		extern "C" BOOL PASCAL EXPORT ExportedFunction()
				//		{
				//			AFX_MANAGE_STATE(AfxGetStaticModuleState());
				//			// normal function body here
				//		}
				//
				//		It is very important that this macro appear in each
				//		function, prior to any calls into MFC.  This means that
				//		it must appear as the first statement within the 
				//		function, even before any object variable declarations
				//		as their constructors may generate calls into the MFC
				//		DLL.
				//
				//		Please see MFC Technical Notes 33 and 58 for additional
				//		details.
				//
				
				/////////////////////////////////////////////////////////////////////////////
				// CMainDLLApp
				
				BEGIN_MESSAGE_MAP(CMainDLLApp, CWinApp)
					//{{AFX_MSG_MAP(CMainDLLApp)
						// NOTE - the ClassWizard will add and remove mapping macros here.
						//    DO NOT EDIT what you see in these blocks of generated code!
					//}}AFX_MSG_MAP
				END_MESSAGE_MAP()
				
				/////////////////////////////////////////////////////////////////////////////
				// CMainDLLApp construction
				
				CMainDLLApp::CMainDLLApp()
				{
					// TODO: add construction code here,
					// Place all significant initialization in InitInstance
				}
				
				/////////////////////////////////////////////////////////////////////////////
				// The one and only CMainDLLApp object
				
				CMainDLLApp theApp;