DisplayFileInfo－－文件信息

BOOL CAudioboxDlg::DisplayFileInfo(LPTSTR szFile){    HANDLE hFile;    LONGLONG llSize=0;    DWORD dwSizeLow=0, dwSizeHigh=0;    TCHAR szScrap[64];    // Open the specified file to read size and date information    hFile = CreateFile(szFile,GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,                       (DWORD) 0, NULL);    if (hFile == INVALID_HANDLE_VALUE)    {        RetailOutput(TEXT("*** Failed(0x%x) to open file (to read size)!/r/n"),                     GetLastError());        return FALSE;    }    dwSizeLow = GetFileSize(hFile, &dwSizeHigh);    if ((dwSizeLow == 0xFFFFFFFF) && (GetLastError() != NO_ERROR))    {        RetailOutput(TEXT("*** Error(0x%x) reading file size!/r/n"),                     GetLastError());        CloseHandle(hFile);        return FALSE;    }    // Large files will also use the upper DWORD to report size.    // Add them together for the true size if necessary.    if (dwSizeHigh)        llSize = (dwSizeHigh << 16) + dwSizeLow;    else        llSize = dwSizeLow;    // Read date information    BY_HANDLE_FILE_INFORMATION fi;    if (GetFileInformationByHandle(hFile, &fi))    {        CTime time(fi.ftLastWriteTime);        wsprintf(szScrap, TEXT("File date: %02d/%02d/%d/0"),                  time.GetMonth(), time.GetDay(), time.GetYear());        m_StrFileDate.SetWindowText(szScrap);    }    CloseHandle(hFile);    // Update size/date windows    wsprintf(szScrap, TEXT("Size: %d bytes/0"), dwSizeLow);    m_StrFileSize.SetWindowText(szScrap);    return TRUE;}