// PCComDlg.cpp : implementation file
//

#include "stdafx.h"
#include "PCCom.h"
#include "PCComDlg.h"
#include "afxdialogex.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CAboutDlg dialog used for App About

class CAboutDlg : public CDialogEx
{
public:
	CAboutDlg();

// Dialog Data
#ifdef AFX_DESIGN_TIME
	enum { IDD = IDD_ABOUTBOX };
#endif

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

// Implementation
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialogEx(IDD_ABOUTBOX)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()


// CPCComDlg dialog



CPCComDlg::CPCComDlg(CWnd* pParent /*=NULL*/)
	: CDialogEx(IDD_PCCOM_DIALOG, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CPCComDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CPCComDlg, CDialogEx)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTOPEN, &CPCComDlg::OnBnClickedButopen)
	ON_BN_CLICKED(IDC_BUTCLOSE, &CPCComDlg::OnBnClickedButclose)
	ON_BN_CLICKED(IDC_BUTSEND, &CPCComDlg::OnBnClickedButsend)
	ON_BN_CLICKED(IDC_BUTBUFCNT, &CPCComDlg::OnBnClickedButbufcnt)
	ON_BN_CLICKED(IDC_BUTREC, &CPCComDlg::OnBnClickedButrec)
END_MESSAGE_MAP()


// CPCComDlg message handlers

BOOL CPCComDlg::OnInitDialog()
{
	CDialogEx::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		BOOL bNameValid;
		CString strAboutMenu;
		bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
		ASSERT(bNameValid);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon

	// TODO: Add extra initialization here

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CPCComDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialogEx::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CPCComDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{

		CDialogEx::OnPaint();
	}
}

// The system calls this function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CPCComDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}



void CPCComDlg::OnBnClickedButopen()
{
	m_hCom = CreateFile(L"COM1", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);

	if (m_hCom == INVALID_HANDLE_VALUE) {
		WCHAR text[100];
		Beep(1000, 50);
		long errorID = GetLastError();
		FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorID, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), text, 100, NULL);
		MessageBox(text);
		return;
	}
	SetupComm(m_hCom, 256, 256);

	DCB dcb;
	dcb.DCBlength = sizeof(dcb);
	GetCommState(m_hCom, &dcb);
	dcb.BaudRate = CBR_9600;
	dcb.fParity = TRUE;
	dcb.Parity = NOPARITY;
	dcb.StopBits = ONESTOPBIT;
	dcb.ByteSize = 8;

	BOOL result = SetCommState(m_hCom, &dcb);

	if (!result) {
		WCHAR text[100];
		Beep(1000, 50);
		long errorID = GetLastError();
		FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, errorID, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), text, 100, NULL);
		MessageBox(text);
		CloseHandle(m_hCom);
		return;
	}

}


void CPCComDlg::OnBnClickedButclose()
{
	CloseHandle(m_hCom);
}


void CPCComDlg::OnBnClickedButsend()
{
	m_aBuf[0] = 'i';
	m_aBuf[1] = 'm';
	m_aBuf[2] = 'i';
	m_aBuf[3] = 'e';
	m_aBuf[4] = 13;
	m_aBuf[5] = 10;

	DWORD nbrToWrite = 6;
	DWORD nbrWritten = 0;
	BOOL result = WriteFile(m_hCom,m_aBuf,nbrToWrite,&nbrWritten,NULL);

}


void CPCComDlg::OnBnClickedButbufcnt()
{
	COMSTAT status;
	DWORD errors;
	DWORD nbrBytesToRead;
	ClearCommError(m_hCom, &errors, &status);
	CString str;
	str.Format(L"Liczba danych w buforze: %d", status.cbInQue);
	MessageBox(str);
}


void CPCComDlg::OnBnClickedButrec()
{
	COMSTAT status;
	DWORD errors;
	DWORD nbrBytesToRead;
	ClearCommError(m_hCom, &errors, &status);
	if (status.cbInQue>0) {
		DWORD nbrRead;
		char buf;
		BOOL result = ReadFile(m_hCom,&buf,1,&nbrRead,NULL);
		m_strRecText += buf;
		this->RedrawWindow();
	}
}