serial.h

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// Serial.h: interface for the CSerial class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_SERIAL_H__9C0F5CF8_313F_4F6C_99C4_8016F6FD4A4B__INCLUDED_)
#define AFX_SERIAL_H__9C0F5CF8_313F_4F6C_99C4_8016F6FD4A4B__INCLUDED_

#define WM_COMM_BREAK_DETECTED		WM_USER+1	// A break was detected on input.
#define WM_COMM_CTS_DETECTED		WM_USER+2	// The CTS (clear-to-send) signal changed state. 
#define WM_COMM_DSR_DETECTED		WM_USER+3	// The DSR (data-set-ready) signal changed state. 
#define WM_COMM_ERR_DETECTED		WM_USER+4	// A line-status error occurred. Line-status errors are CE_FRAME, CE_OVERRUN, and CE_RXPARITY. 
#define WM_COMM_RING_DETECTED		WM_USER+5	// A ring indicator was detected. 
#define WM_COMM_RLSD_DETECTED		WM_USER+6	// The RLSD (receive-line-signal-detect) signal changed state. 
#define WM_COMM_RXCHAR				WM_USER+7	// A character was received and placed in the input buffer. 
#define WM_COMM_RXFLAG_DETECTED		WM_USER+8	// The event character was received and placed in the input buffer.  
#define WM_COMM_TXEMPTY_DETECTED	WM_USER+9	// The last character in the output buffer was sent.  


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

class CSerial  
{
public:
	BOOL WriteChar(char *buf,int nsize);
	CSerial();
	virtual ~CSerial();
	
	HANDLE m_hPort;				// Port handle,filled by CreateFile function.
	CRITICAL_SECTION m_cs;

	BOOL StartReadThread();		// Create and start a ReadThread.
	void StopReadThread();		// Stop and delete  a ReadThread

	BOOL WriteChar(BYTE Byte);
	BOOL WriteChar(char *buf);
	BOOL WriteChar(LPCTSTR lpString);
	BOOL ClosePort();			// Close port
	BOOL InitializePort(HWND hWnd,CString PortNum,UINT Baud, CString Parity, UINT DataBits, UINT StopBits);

protected:
	static DWORD WINAPI ReadThread(LPVOID lpParam);		// main read thread function.

	COMMTIMEOUTS m_CommTimeouts;
	DCB m_dcb;

	HANDLE m_hThread;			// Thread handle,filled by CreateThread function
	HWND m_hWnd;


private:

};

#endif // !defined(AFX_SERIAL_H__9C0F5CF8_313F_4F6C_99C4_8016F6FD4A4B__INCLUDED_)