www.gusucode.com > VC 获取指定一个磁盘的容量大小 > VC 获取指定一个磁盘的容量大小/gusucode/DrvSpaceDlg.cpp
//Download by http://www.NewXing.com // DrvSpaceDlg.cpp : implementation file // #include "stdafx.h" #include "DrvSpace.h" #include "DrvSpaceDlg.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() ///////////////////////////////////////////////////////////////////////////// // CDrvSpaceDlg dialog CDrvSpaceDlg::CDrvSpaceDlg(CWnd* pParent /*=NULL*/) : CDialog(CDrvSpaceDlg::IDD, pParent) { //{{AFX_DATA_INIT(CDrvSpaceDlg) // 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 CDrvSpaceDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CDrvSpaceDlg) // NOTE: the ClassWizard will add DDX and DDV calls here //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CDrvSpaceDlg, CDialog) //{{AFX_MSG_MAP(CDrvSpaceDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_GETDRVSPACEINFO, OnGetDrvSpaceInfo) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CDrvSpaceDlg message handlers BOOL CDrvSpaceDlg::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 //列出所有驱动器 FindAllDrivers(); CComboBox* Driver=(CComboBox*)GetDlgItem(IDC_DRIVER); Driver->SetCurSel(0); return TRUE; // return TRUE unless you set the focus to a control } void CDrvSpaceDlg::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 CDrvSpaceDlg::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 CDrvSpaceDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CDrvSpaceDlg::OnGetDrvSpaceInfo() { //更新列表框 UpdateData(TRUE); //获得选择的驱动器 CString Driver; CComboBox* pDriver = (CComboBox*)GetDlgItem(IDC_DRIVER); pDriver->GetWindowText(Driver); //获得磁盘空间信息 ULARGE_INTEGER FreeAv,TotalBytes,FreeBytes; if(GetDiskFreeSpaceEx(Driver,&FreeAv,&TotalBytes,&FreeBytes)) { //格式化信息,并显示出来 CString strTotalBytes,strFreeBytes; strTotalBytes.Format("%u字节",TotalBytes.QuadPart); strFreeBytes.Format("%u字节",FreeBytes.QuadPart); CStatic* pTotalStatic = (CStatic*)GetDlgItem(IDC_TOTAL); CStatic* pFreeStatic = (CStatic*)GetDlgItem(IDC_FREE); pTotalStatic->SetWindowText(strTotalBytes); pFreeStatic->SetWindowText(strFreeBytes); } } void CDrvSpaceDlg::FindAllDrivers() { CComboBox* Driver=(CComboBox*)GetDlgItem(IDC_DRIVER); DWORD dwNumBytesForDriveStrings;//实际存储驱动器号的字符串长度 HANDLE hHeap; LPSTR lp; CString strLogdrive; //获得实际存储驱动器号的字符串长度 dwNumBytesForDriveStrings=GetLogicalDriveStrings(0,NULL)*sizeof(TCHAR); //如果字符串不为空,则表示有正常的驱动器存在 if (dwNumBytesForDriveStrings!=0) { //分配字符串空间 hHeap=GetProcessHeap(); lp=(LPSTR)HeapAlloc(hHeap,HEAP_ZERO_MEMORY, dwNumBytesForDriveStrings); //获得标明所有驱动器的字符串 GetLogicalDriveStrings(HeapSize(hHeap,0,lp),lp); //将驱动器一个个放到下拉框中 while (*lp!=0) { Driver->AddString(lp); lp=_tcschr(lp,0)+1; } } else AfxMessageBox("Can't Use The Function GetLogicalDriveStrings!"); }