private void initializePropertyFromFileAttributes()
{
// Get the file attributes by the native function.
NativeMethods.WIN32_FILE_ATTRIBUTE_DATA fileAttributeData;
if (!NativeMethods.GetFileAttributesExW(UncFilePath, NativeMethods.GET_FILEEX_INFO_LEVELS.GetFileExInfoStandard, out fileAttributeData))
{
int err = Marshal.GetLastWin32Error();
string message = string.Format(@"Failed GetFileAttributesExW function with {0}. The file path is ""{1}""", err, UncFilePath);
throw new Win32Exception(err, message);
}
// Initialize the properties.
FileSize = NativeMethodHelper.NativeUInt32HighLowToUInt64(fileAttributeData.FileSizeHigh, fileAttributeData.FileSizeLow);
CreationTimeUtc = NativeMethodHelper.NativeFileTimeToDateTimeUtc(fileAttributeData.CreationTime);
LastAccessTimeUtc = NativeMethodHelper.NativeFileTimeToDateTimeUtc(fileAttributeData.LastAccessTime);
LastWriteTimeUtc = NativeMethodHelper.NativeFileTimeToDateTimeUtc(fileAttributeData.LastWriteTime);
}
private string extractFileVersion(byte[] fileVerInfoData)
{
// Read the file version from the version information resource.
IntPtr value;
uint valueLength;
if (NativeMethods.VerQueryValueW(fileVerInfoData, @"\", out value, out valueLength))
{
NativeMethods.VS_FIXEDFILEINFO fixedFileInfo;
fixedFileInfo = (NativeMethods.VS_FIXEDFILEINFO)Marshal.PtrToStructure(value, typeof(NativeMethods.VS_FIXEDFILEINFO));
return string.Format(@"{0}.{1}.{2}.{3}",
NativeMethodHelper.GetHighWord(fixedFileInfo.FileVersionMS), NativeMethodHelper.GetLowWord(fixedFileInfo.FileVersionMS),
NativeMethodHelper.GetHighWord(fixedFileInfo.FileVersionLS), NativeMethodHelper.GetLowWord(fixedFileInfo.FileVersionLS));
}
// Try with language and code page if above failed.
NativeMethods.LangAndCodePage[] langsAndCodePages = getLanguageCodePagePairs(fileVerInfoData);
if (langsAndCodePages == null) return string.Empty;
// Get file version information value.
return getFileVersionInfoValue(fileVerInfoData, langsAndCodePages, @"FileVersion");
}
