// PCComDlg.cpp : implementation file
//

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

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CAboutDlg dialog used for App About

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

// Dialog Data
	enum { IDD = IDD_ABOUTBOX };

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

// Implementation
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

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

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CPCComDlg dialog




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

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

BEGIN_MESSAGE_MAP(CPCComDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(IDC_BUTOPEN, &CPCComDlg::OnBnClickedButopen)
	ON_BN_CLICKED(IDC_BUTCLOSE, &CPCComDlg::OnBnClickedButclose)
	ON_BN_CLICKED(IDC_BUTSEND, &CPCComDlg::OnBnClickedButsend)
	ON_BN_CLICKED(IIDC_BUTBUFCNT, &CPCComDlg::OnBnClickedButbufcnt)
	ON_BN_CLICKED(IDC_BUTREC, &CPCComDlg::OnBnClickedButrec)
END_MESSAGE_MAP()


// CPCComDlg message handlers

BOOL CPCComDlg::OnInitDialog()
{
	CDialog::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)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		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
	{
		CDialog::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
	{
		CPaintDC dc(this); // device context for painting

		dc.TextOut(10,200,m_strRecText);
		CDialog::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()
{
    // TODO: Add your control notification handler code here
    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()
{
    // TODO: Add your control notification handler code here
    CloseHandle(m_hCom);
}

/*void CPCComDlg::OnBnClickedButton3()
{
    // TODO: Add your control notification handler code here
}*/

void CPCComDlg::OnBnClickedButsend()
{
    // TODO: Add your control notification handler code here
    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()
{
	// TODO: Add your control notification handler code here
	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()
{
	// TODO: Add your control notification handler code here
	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();
	};
	*/
	int draw = 0;
	while(status.cbInQue > 0)
	{
		draw = 1;
		ClearCommError(m_hCom, &errors, &status);
		DWORD nbrRead;
		char buf;
		BOOL result = ReadFile(m_hCom, &buf, 1, &nbrRead, NULL);

		m_strRecText += buf;
		this->RedrawWindow();
	}
	if(draw)
	{
		this->RedrawWindow();
	}

}