?? wserialcomm.h
字號:
// WSerialComm.h: interface for the CWSerialComm class.
//
//////////////////////////////////////////////////////////////////////
#if !defined(AFX_WSERIALCOMM_H__37A6B64A_127F_4144_B02D_BC3983667F0C__INCLUDED_)
#define AFX_WSERIALCOMM_H__37A6B64A_127F_4144_B02D_BC3983667F0C__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
const int READ_BUFF_SIZE = 1024;
class CWSerialComm
{
public:
BOOL CloseCom();
BOOL IsOpen();
BOOL OpenCom(int portNo);
CWSerialComm();
~CWSerialComm();
protected:
// called by ReadCommBlock() and WriteDataBlock() to report error
// return the successive operation: ignore or retry
// dwError is gotten by ClearCommError()
virtual BOOL OnCommPortError( DWORD dwError, BOOL bReading = TRUE );
virtual void OnDataRead( const LPBYTE, DWORD ) ;
BOOL WriteDataBlock(const BYTE* lpByte, DWORD dwBytesToWrite);
private:
static void GetCommName( LPSTR lpszComName, int portNo);
DWORD ReadCommBlock( ) ;
BOOL InitMembers();
void SetCommConfig();
HANDLE m_hComDev;
// status
volatile BOOL m_bOpened; //opened
//
HANDLE m_hCommWatchThread;
volatile DWORD m_dwThreadID ;
OVERLAPPED m_osWrite, m_osRead ;
BYTE m_pReadBuff[ READ_BUFF_SIZE ];
friend UINT CommWatchProc( LPVOID lpData );
};
#endif // !defined(AFX_WSERIALCOMM_H__37A6B64A_127F_4144_B02D_BC3983667F0C__INCLUDED_)
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