serialtcp.cpp

串口转TCPIP 实用程序,很实用的代码和code,我们可以学习串口和tcp ip的原理

// SerialTcp.cpp : Defines the class behaviors for the application.
//

#include "stdafx.h"
#include "SerialTcp.h"
#include "SerialTcpDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CSerialTcpApp

BEGIN_MESSAGE_MAP(CSerialTcpApp, CWinApp)
	ON_COMMAND(ID_HELP, &CWinApp::OnHelp)
END_MESSAGE_MAP()


// CSerialTcpApp construction

CSerialTcpApp::CSerialTcpApp()
{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
}


// The one and only CSerialTcpApp object

CSerialTcpApp theApp;


// CSerialTcpApp initialization

BOOL CSerialTcpApp::InitInstance()
{
	// InitCommonControlsEx() is required on Windows XP if an application
	// manifest specifies use of ComCtl32.dll version 6 or later to enable
	// visual styles.  Otherwise, any window creation will fail.
	if(!CreateMutex(NULL, FALSE, "TcpToSerial"))
	{
		AfxMessageBox("创建Mutex失败！");
	}
	else
	{
		if(GetLastError() == ERROR_ALREADY_EXISTS)
		{	
			HWND hl = NULL;
			hl = ::FindWindow(NULL, "SerialTcp");
			if(hl)
			{				
				AttachThreadInput(GetWindowThreadProcessId(::GetForegroundWindow(), NULL),GetCurrentThreadId(),TRUE);
				::ShowWindow(hl, SW_RESTORE);
				::SetForegroundWindow(hl);
				::SetFocus(hl); 
				AttachThreadInput(GetWindowThreadProcessId(::GetForegroundWindow(),NULL),GetCurrentThreadId(),FALSE);
			}
			return FALSE;
		}
	}

	//**************************************************************
	INITCOMMONCONTROLSEX InitCtrls;
	InitCtrls.dwSize = sizeof(InitCtrls);
	// Set this to include all the common control classes you want to use
	// in your application.
	InitCtrls.dwICC = ICC_WIN95_CLASSES;
	InitCommonControlsEx(&InitCtrls);

	CWinApp::InitInstance();

	if (!AfxSocketInit())
	{
		AfxMessageBox(IDP_SOCKETS_INIT_FAILED);
		return FALSE;
	}

	AfxEnableControlContainer();

	// Standard initialization
	// If you are not using these features and wish to reduce the size
	// of your final executable, you should remove from the following
	// the specific initialization routines you do not need
	// Change the registry key under which our settings are stored
	// TODO: You should modify this string to be something appropriate
	// such as the name of your company or organization
	SetRegistryKey(_T("Local AppWizard-Generated Applications"));

	CSerialTcpDlg dlg;
	m_pMainWnd = &dlg;
	INT_PTR nResponse = dlg.DoModal();
	if (nResponse == IDOK)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with OK
	}
	else if (nResponse == IDCANCEL)
	{
		// TODO: Place code here to handle when the dialog is
		//  dismissed with Cancel
	}

	// Since the dialog has been closed, return FALSE so that we exit the
	//  application, rather than start the application's message pump.
	return FALSE;
}