helloworld.cpp

下面是串口通信开发的部分原码,自己写的,可能有些错误,希望大大家指教.

//	HelloWorld.cpp - Sample application for CSerial
//
//	Copyright (C) 1999-2001 Ramon de Klein ([e-mail])
//
// This program is free software; you can redistribute it and/ormodify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

#define STRICT
#include <tchar.h>
#include <windows.h>
#include "Serial.h"

int ShowError (LONG lError, LPCTSTR lptszMessage)
{
	// Generate a message text
	TCHAR tszMessage[256];
	wsprintf(tszMessage,_T("%s\n(error code %d)"), lptszMessage, lError);

	// Display message-box and return with an error-code
	::MessageBox(0,tszMessage,_T("Hello world"), MB_ICONSTOP|MB_OK);
	return 1;
}

int WINAPI _tWinMain (HINSTANCE /*hInst*/, HINSTANCE /*hInstPrev*/, LPTSTR /*lptszCmdLine*/, int /*nCmdShow*/)
{
    CSerial serial;
	LONG    lLastError = ERROR_SUCCESS;

    // Attempt to open the serial port (COM1)
    lLastError = serial.Open(_T("COM1"));
	if (lLastError != ERROR_SUCCESS)
		return ::ShowError(serial.GetLastError(), _T("Unable to open COM-port"));

    // Setup the serial port (9600,N81) using hardware handshaking
    lLastError = serial.Setup(CSerial::EBaud9600,CSerial::EData8,CSerial::EParNone,CSerial::EStop1);
	if (lLastError != ERROR_SUCCESS)
		return ::ShowError(serial.GetLastError(), _T("Unable to set COM-port setting"));

	// Setup handshaking
    lLastError = serial.SetupHandshaking(CSerial::EHandshakeHardware);
	if (lLastError != ERROR_SUCCESS)
		return ::ShowError(serial.GetLastError(), _T("Unable to set COM-port handshaking"));

    // The serial port is now ready and we can send/receive data. If
	// the following call blocks, then the other side doesn't support
	// hardware handshaking.
    lLastError = serial.Write("Hello world\n");
	if (lLastError != ERROR_SUCCESS)
		return ::ShowError(serial.GetLastError(), _T("Unable to send data"));

    // Close the port again
    serial.Close();
    return 0;
}