rs232.h

RS232.cpp and RS232.h for Serial COM Port Communication

#ifndef _RS232_H
#define _RS232_H

#include "windows.h"
#include "stdio.h"

using namespace std;

typedef enum _RS232RetTag {
	RS232_HANDLE_FAIL			= 0x01,
	RS232_OPEN_FAIL				= 0x02,
	RS232_DETECT_FAIL			= 0x03,
	RS232_READ_FAIL				= 0x04,
	RS232_WRITE_FAIL			= 0x05,
	RS232_PARSER_FAIL			= 0x06,
} RS232RetTag;

typedef struct _AT_CMD {
	CHAR	szCommand[256];
	DWORD	dwLength;
} AT_COM;

typedef enum _RS232FlowControlTypeTag {
	FLOW_CONTROL_OFF            = 0,
	FLOW_CONTROL_SOFTWARE       = 1,
	FLOW_CONTROL_HARDWARE       = 2,
} RS232FlowControlTypeTag;

class CRS232
{
public:

	CRS232();
	virtual ~CRS232();

public:
	
	INT Open(CONST INT iID);
    INT IsOpen(VOID);
	INT Close(VOID);
	INT Detect(CONST INT iID);
	INT Write(CONST CHAR *pcCommand);
	INT Read(CHAR *pcBuffer);
	INT WriteByte(AT_COM &cmd);
	INT ReadByte(CHAR *pcBuffer);

	HANDLE m_hCOM;

};

#endif /* #pragma once */