// PSerialPort.h: interface for the CPSerialPort class.
//
//////////////////////////////////////////////////////////////////////

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

typedef void (*LPDataArriveProc)(char *data,int length,DWORD userdata);

class CPSerialPort  
{
public:
	CPSerialPort();
	virtual ~CPSerialPort();

	BOOL OpenPort(LPCTSTR Port,int Baudrate,int DataBits,int StopBits,int Parity,LPDataArriveProc proc=NULL,DWORD userdata=0); //打開串口
	BOOL ClosePort(); //關閉串口
	
	//激活與關閉持續接收
	BOOL Activate();
	BOOL Deactivate();
	BOOL IsActive();
	
	//接收數據線程函數
	static DWORD WINAPI ReadPortThread(LPVOID lpParameter);
	
	DWORD ReadPort(char *data,int length); //讀取一定長度的數據
	DWORD WritePort(char *data,int length); //發送數據
	DWORD WriteFileToPort(LPCTSTR FileName); //發送文件
	
private:
	HANDLE m_hComm; //串口設備handle
	HANDLE m_hReadThread; //讀串口線程handle
	BOOL m_bReceiving; //是否持續接收
	int m_nBufferSize; //緩沖大小

	char *Buffer; //緩沖區
	
	LPDataArriveProc m_lpDataArriveProc;
	DWORD m_dwUserData;

	//串口設置以及超時參數
	DCB dcb;
	COMMTIMEOUTS CommTimeOuts;	
	
};