Serial.h

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#pragma once
 
#include <windows.h>
#include <string>
 
#define FC_DTRDSR       0x01
#define FC_RTSCTS       0x02
#define FC_XONXOFF      0x04
#define ASCII_BEL       0x07
#define ASCII_BS        0x08
#define ASCII_LF        0x0A
#define ASCII_CR        0x0D
#define ASCII_XON       0x11
#define ASCII_XOFF      0x13
 
class CSerial
{
public:
    CSerial();
    ~CSerial();
 
    // Add/modify the calls to make them uniform with TimeoutSerial
    bool        Open            (const std::string& comName, int nBaud = 9600, int stopBits = 1, 
                                int timeout = 1000);
 
    bool        Close           (void);
 
    int         Read            (void *, int);
    std::string ReadStringUntil (std::string delim);
    std::string ReadExisting    ();
 
    int         Write           (const char *, int);
    int         WriteString     (const std::string& s);
 
    int         ReadDataWaiting (void);
 
    bool        IsOpen          (void);
 
    void        SetReadDelay    (int ms);
 
protected:
    HANDLE      _hIDComDev;
    OVERLAPPED  _overlappedRead, _overlappedWrite;
 
    bool        _opened;
    char*       _buff;
    int         _maxBuf;
    int         _readDelay;
 
    BOOL        WriteCommByte   (unsigned char);
 
};