// GetTextUnicodeDlg.cpp : implementation file
//

#include "stdafx.h"
#include "GetTextUnicode.h"
#include "GetTextUnicodeDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
char *pBuf;
void OnFileRead();
void OnFileWrite();
void OnFileReadAndWrite();
WORD  GBKToUniCode( WORD  w );
class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

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

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

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGetTextUnicodeDlg dialog

CGetTextUnicodeDlg::CGetTextUnicodeDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CGetTextUnicodeDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CGetTextUnicodeDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CGetTextUnicodeDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGetTextUnicodeDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CGetTextUnicodeDlg, CDialog)
	//{{AFX_MSG_MAP(CGetTextUnicodeDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGetTextUnicodeDlg message handlers

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

		SendMessage(WM_ICONERASEBKGND, (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
	{
		CDialog::OnPaint();
	}
}

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

void CGetTextUnicodeDlg::OnOK() 
{	
   CFile pfile1,pfile2;    
   pfile1.Open("d:\\590.txt", CFile::modeRead| CFile::shareDenyWrite );
   DWORD len=pfile1.GetLength( );
   pfile2.Open("d:\\950.txt",CFile::modeCreate|CFile::modeWrite);
   char *lpbuf;
   lpbuf=new char[len+1];
   pfile1.Read(lpbuf,len);
   DWORD i=0;
   BYTE buf[2];
   buf[0]=0xFF;
   buf[1]=0xFE;
   pfile2.Write( buf, 2 );    
   while (i<len) {   
   BYTE HIGH=*(lpbuf+i);
   BYTE LOW=*(lpbuf+i+1);
   WORD WTEP=MAKEWORD(LOW,HIGH);
   WORD ResWORD=GBKToUniCode( WTEP );
   pfile2.Write(&ResWORD,sizeof(ResWORD));  
   i+=2;
}

   if (lpbuf) {delete []lpbuf; }
     
}
WORD  GBKToUniCode( WORD  w )
{
	if( w == 0 ) return 0;
	TCHAR szWord[3] = {'\0'};
	szWord[0] = HIBYTE( w );
	szWord[1] = LOBYTE( w );
	szWord[2] = '\0';
	LPTSTR lpszMovie  = szWord; 
	int iLen = MultiByteToWideChar(CP_ACP,
		MB_PRECOMPOSED,
		lpszMovie,
		-1,
		NULL,
		0);
	LPWSTR lpwszMovie = new WCHAR[iLen + 1];
	MultiByteToWideChar(CP_ACP,
		MB_PRECOMPOSED,
					   lpszMovie,
					   -1,
					   lpwszMovie,
					   iLen + 1); 
	WORD  ret  = (WORD) lpwszMovie[0];
	if( lpwszMovie ) delete [] lpwszMovie;
	return  ret;
}