www.pudn.com > source1.02.rar > COM232.H

#if !defined(_COMM_ACCESS_FUNCTIONS_AND_DATA) 
#define _COMM_ACCESS_FUNCTIONS_AND_DATA 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
#define EVENTCHAR               0x0d 
#define MAXBLOCKLENGTH          59//130 
 
extern BYTE XwCom; 
extern BYTE  sCom1[5],sCom2[MAXBLOCKLENGTH+12],sCom3[MAXBLOCKLENGTH+12]; 
extern BYTE opation; 
extern short ComNum; 
//COMSTAT ComStat; 
// Flow control flags 
 
#define FC_DTRDSR       0x01 
#define FC_RTSCTS       0x02 
#define FC_XONXOFF      0x04 
 
 
// ascii definitions 
 
#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 CComStatus 
{ 
public: 
	HANDLE m_hCom; 
	BYTE m_bComId; 
 
	BYTE m_bByteSize; 
	BYTE m_bStopBits; 
	BYTE m_bParity; 
	DWORD m_dwBaudRate; 
	//WORD m_fChEvt; 
	char m_bEvtChar; 
	DWORD m_fBinary; 
 
	BOOL m_bConnected; 
	BOOL m_fXonXoff; 
	BOOL m_bFlowCtrl; 
 
	OVERLAPPED	m_rdos; 
	OVERLAPPED  m_wtos; 
	//functions 
	CComStatus(); 
	CComStatus(BYTE bComId,BYTE bByteSize,BYTE bStopBits,BYTE bParity, 
		DWORD dwBaudRate,/*WORD fChEvt,*/char bEvtChar,DWORD fBinary); 
	BOOL OpenConnection(); 
	BOOL CloseConnection(); 
	BOOL SetupConnection(); 
	BOOL IsConnected(); 
  }; //InitCommParam = {8,ONESTOPBIT,NOPARITY,1200,1,EVENTCHAR,1}; 
/****************************************************** 
GLOBAL FUNCTIONS 
******************************************************/ 
UINT CommWatchProc( LPVOID lpData ); 
BOOL WriteCommBlock( CComStatus& comDev, LPSTR lpByte , DWORD dwBytesToWrite); 
int ReadCommBlock(CComStatus& comDev,LPSTR lpszBlock, int nMaxLength ); 
int ReadCommBlockEx(CComStatus& comDev,LPSTR lpszBlock, int nMaxLength,DWORD dwTimeOut); 
//BOOL FAR InitComDev(HWND hWnd); 
 
//BOOL FAR ProcessCOMMNotification(HWND hWnd,LPARAM lParam); 
 
//void tron(float *buf); 
#endif