Сборка Часть1 / avmis_labs / неразобрано / 501 / Лаб_СОМ / Кухта В.В / com-port / com-port / com-port

#include "stdafx.h"

#include <stdio.h>
#include <conio.h>
#include <iostream>
#include <windows.h>

using namespace std;

const int SizeBuffer = 1200;

int main()
{
	wchar_t port[] = L"COM1";
	char c;
	cout << "[1] COM1" << endl << "[2] COM2" << endl;
	c = _getch();
	if (c == '2')
	{
		port[3] = '2';
	}

	//открытие порта
	HANDLE handle; 
	handle = CreateFile(port, GENERIC_READ | GENERIC_WRITE, NULL, NULL, OPEN_EXISTING, 0, NULL); 
	if (handle)
	{
		for (int i = 0; i < 4; i++)
		{
			wcout << port[i];
		}
		cout << " opened" << endl;
	}

	//настройка порта
	SetupComm(handle, SizeBuffer, SizeBuffer); 

	DCB dcb; 
	GetCommState(handle, &dcb);
	dcb.ByteSize = 8;
	dcb.BaudRate = CBR_57600;
	dcb.Parity = NOPARITY;
	dcb.StopBits = ONESTOPBIT;
	SetCommState(handle, &dcb);

	COMMTIMEOUTS CommTimeOuts;
	CommTimeOuts.ReadIntervalTimeout= 10; 
	CommTimeOuts.ReadTotalTimeoutMultiplier = 1; 
	CommTimeOuts.ReadTotalTimeoutConstant = 100; 
	CommTimeOuts.WriteTotalTimeoutMultiplier = 0; 
	CommTimeOuts.WriteTotalTimeoutConstant = 0; 
	SetCommTimeouts(handle, &CommTimeOuts);

	//чистим порт
	PurgeComm(handle, PURGE_RXCLEAR); 
	PurgeComm(handle, PURGE_TXCLEAR);
	//
	DWORD numbytes, numbytes_ok, temp; 
	COMSTAT ComState; 
	char buf_in[2]; 
	char buf_out[] = "\0";

	while (1)
	{
		ClearCommError(handle, &temp, &ComState); 
		if (!temp)
		{
			ReadFile(handle, buf_in, 1, &numbytes_ok, 0);
			
		}
		if (numbytes_ok > 0)
		{
			cout << buf_in[0];
		
		}
		if (_kbhit())
		{
			buf_out[0] = _getch();
			printf(&buf_out[0]);
			ClearCommError(handle, &temp, &ComState); 
			if (!temp)
			{
				WriteFile(handle, buf_out, 1, &numbytes_ok, 0);
				
			}
			
		}
	}
}