可实现串口通信开发。使用MSComm控件

				// MSCOMM.h : main header file for the MSCOMM application
				//
				
				#if !defined(AFX_MSCOMM_H__B19A5F1E_BD1C_4BCB_9E2B_407509362500__INCLUDED_)
				#define AFX_MSCOMM_H__B19A5F1E_BD1C_4BCB_9E2B_407509362500__INCLUDED_
				
				#if _MSC_VER > 1000
				#pragma once
				#endif // _MSC_VER > 1000
				
				#ifndef __AFXWIN_H__
					#error include 'stdafx.h' before including this file for PCH
				#endif
				
				#include "resource.h"		// main symbols
				
				/////////////////////////////////////////////////////////////////////////////
				// CMSCOMMApp:
				// See MSCOMM.cpp for the implementation of this class
				//
				
				class CMSCOMMApp : public CWinApp
				{
				public:
					CMSCOMMApp();
				
				// Overrides
					// ClassWizard generated virtual function overrides
					//{{AFX_VIRTUAL(CMSCOMMApp)
					public:
					virtual BOOL InitInstance();
					//}}AFX_VIRTUAL
				
				// Implementation
				
					//{{AFX_MSG(CMSCOMMApp)
						// NOTE - the ClassWizard will add and remove member functions here.
						//    DO NOT EDIT what you see in these blocks of generated code !
					//}}AFX_MSG
					DECLARE_MESSAGE_MAP()
				};
				
				
				/////////////////////////////////////////////////////////////////////////////
				
				//{{AFX_INSERT_LOCATION}}
				// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
				
				#endif // !defined(AFX_MSCOMM_H__B19A5F1E_BD1C_4BCB_9E2B_407509362500__INCLUDED_)