// CPorts.h: interface for the CPorts class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_CPORTS_H__631473E2_F58F_42EF_BB8E_3CBEC4F74A62__INCLUDED_)
#define AFX_CPORTS_H__631473E2_F58F_42EF_BB8E_3CBEC4F74A62__INCLUDED_

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

//File Headers//
#include <windows.h>
#include "Common.h"
#include "CText.h"
#include "CTextPage.h"

//Communication Errors Messages//
typedef BYTE COMMERR;

#define COMM_OK				0x00	//Everything is okay
#define COMMERR_OUTOFMEM	0x01	//Not enough memory to perform the action.

#define COMMERR_OPEN		0x10	//The port is already opened.
#define COMMERR_INVALID		0x11	//The port is not available.
#define COMMERR_FAILPROP	0x12	//The communication properties failed to work.

//Port Definitions//
#define PORT_COM			0x00
#define PORT_LPT			0x01

class CPorts 
{
public:
	//Port Selection & type
	INT m_nPortNum;
	BYTE m_byPortType;
	
	//Port properties.
	INT m_nBaudRate;
	BYTE m_byParity;
	BYTE m_byByteSize;
	BYTE m_byStopBits;

private:
	HANDLE m_hPort;

	DWORD m_dwAbortOnError;
	INT m_nInBufferSize;
	INT m_nOutBufferSize;

public:
	CPorts();
	virtual ~CPorts();

	//Port controls
	COMMERR OpenPort(BYTE byPortType, INT nPortNum);
	COMMERR ClearPort();
	void ClosePort();

	//Misc
	BOOL TestPort(BYTE byPortType, INT nPortNum);
	INT FindAvailablePort();

	//Write & Read data.
	BOOL WriteString(CText buffer);
	BOOL WriteString(char* Buffer);
	BOOL WriteByte(BYTE byValue);
	BOOL ReadPort(char* hcBuffer, int* pnSizeRead, int nSizeToRead);

private:
	COMMERR SetupPort();
};

#endif // !defined(AFX_CPORTS_H__631473E2_F58F_42EF_BB8E_3CBEC4F74A62__INCLUDED_)