trydriveserialnodlg.cpp

这个例子是和FileBackup配合使用的

// TryDriveSerialNoDlg.cpp : implementation file
//

#include "stdafx.h"
#include "TryDriveSerialNo.h"
#include "TryDriveSerialNoDlg.h"
#include "XBrowseForFolder.h"

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

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

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()

/////////////////////////////////////////////////////////////////////////////
// CTryDriveSerialNoDlg dialog

CTryDriveSerialNoDlg::CTryDriveSerialNoDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTryDriveSerialNoDlg::IDD, pParent), m_fIsBrowseFolder(FALSE)
{
	//{{AFX_DATA_INIT(CTryDriveSerialNoDlg)
	m_csDriveSerialNo = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTryDriveSerialNoDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTryDriveSerialNoDlg)
	DDX_Control(pDX, IDC_COMBO_DRIVES, m_comboDrives);
	DDX_Text(pDX, IDC_STATIC_DRIVE_SERIAL_NO, m_csDriveSerialNo);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTryDriveSerialNoDlg, CDialog)
	//{{AFX_MSG_MAP(CTryDriveSerialNoDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_CBN_SELCHANGE(IDC_COMBO_DRIVES, OnSelchangeComboDrives)
	ON_BN_CLICKED(IDC_BUTTON_BROWSE, OnButtonBrowse)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTryDriveSerialNoDlg message handlers

BOOL CTryDriveSerialNoDlg::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
//	m_comboDrives.Dir(DDL_DRIVES | DDL_EXCLUSIVE, _T("*"));
	m_comboDrives.InitDriveList(IDC_COMBO_DRIVES, this, WM_USER);
	OnSelchangeComboDrives();
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CTryDriveSerialNoDlg::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 CTryDriveSerialNoDlg::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 CTryDriveSerialNoDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CTryDriveSerialNoDlg::OnSelchangeComboDrives() 
{
/*
	CString csPath(m_comboDrives.GetCurDrive() + _T(":\\"));
	HANDLE hDrive;
	BY_HANDLE_FILE_INFORMATION info;

	hDrive = CreateFile(csPath, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
	GetFileInformationByHandle(hDrive, &info);
	CloseHandle(hDrive);

	m_csDriveSerialNo.Format(_T("Serial No. : 0x%08X"), info.dwVolumeSerialNumber);
	UpdateData(FALSE);
*/
	if ( !m_fIsBrowseFolder )
	{
		CString csPath(m_comboDrives.GetCurDrive() + _T(":\\"));
		DWORD dwVolumeSerialNumber = 0;
		UINT nOrgErrorMode = SetErrorMode(SEM_FAILCRITICALERRORS);

		if ( GetVolumeInformation((LPCTSTR)csPath, NULL, 0, &dwVolumeSerialNumber, NULL, NULL, NULL, 0) )
		{
			m_csDriveSerialNo.Format(_T("Serial No. : 0x%08X"), dwVolumeSerialNumber);
			UpdateData(FALSE);
		}
		else
			MessageBox(_T("Failed in getting serial number!"));

		SetErrorMode(nOrgErrorMode);
	}
}

void CTryDriveSerialNoDlg::OnButtonBrowse() 
{
	TCHAR buf[MAX_PATH + 1];

	m_fIsBrowseFolder = TRUE;
	if ( XBrowseForFolder(this->m_hWnd, m_csPrevPath, buf, MAX_PATH + 1) )
	{
		m_csPrevPath = buf;
		if ( GetVersion() < 0x80000000 )		//	NT
		{
			HANDLE hDrive;
			BY_HANDLE_FILE_INFORMATION info;

			hDrive = CreateFile(buf, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL);
			if ( hDrive == INVALID_HANDLE_VALUE )
				MessageBox(_T("Failed in opening file!"));
			else
			{
				if ( GetFileInformationByHandle(hDrive, &info) )
				{
					m_comboDrives.SetCurDrive(buf);
					m_csDriveSerialNo.Format(_T("Serial No. : 0x%08X"), info.dwVolumeSerialNumber);
					UpdateData(FALSE);
				}
				else
					MessageBox(_T("Failed in getting serial number!"));
				CloseHandle(hDrive);
			}
		}
		else
		{
			DWORD dwVolumeSerialNumber = 0;
			UINT nOrgErrorMode = SetErrorMode(SEM_FAILCRITICALERRORS);

			buf[1] = _T(':');
			buf[2] = _T('\\');
			buf[3] = NULL;
			if ( GetVolumeInformation(buf, NULL, 0, &dwVolumeSerialNumber, NULL, NULL, NULL, 0) )
			{
				m_comboDrives.SetCurDrive(buf);
				m_csDriveSerialNo.Format(_T("Serial No. : 0x%08X"), dwVolumeSerialNumber);
				UpdateData(FALSE);
			}
			else
				MessageBox(_T("Failed in getting serial number!"));

			SetErrorMode(nOrgErrorMode);
		}
	}
	m_fIsBrowseFolder = FALSE;
}