/// <summary>Finds the <see cref="Win32FindData"/> with the specified path.</summary>
///
/// <param name="path">The path of the file.</param>
/// <param name="find">The output find data.</param>
/// <returns>True if the file was found.</returns>
private static bool GetData(string path, out Win32FindData find)
{
path = PathUtils.AddLongPathPrefix(path);
find = new Win32FindData();
FindExFlags searchFlags;
FindExInfoLevels infoLevel;
if (SupportsExtraFindOptions)
{
searchFlags = FindExFlags.LargeFetch;
infoLevel = FindExInfoLevels.Basic;
}
else
{
searchFlags = FindExFlags.None;
infoLevel = FindExInfoLevels.Standard;
}
IntPtr hFind = FindFirstFileEx(path,
infoLevel, out find,
FindExSearchOps.NameMatch, IntPtr.Zero,
searchFlags);
try {
return(hFind != InvalidHandle);
}
finally {
FindClose(hFind);
}
}
/// <summary>Gets if the specified directory contains no files.</summary>
///
/// <param name="directory">The path of the directory.</param>
/// <returns>True if the directory contains no files.</returns>
///
/// <exception cref="Win32Exception">Failed to search the directory.</exception>
public static bool IsDirectoryEmpty(string directory)
{
string path = PathUtils.AddLongPathPrefix(Path.Combine(directory, "*"));
Win32FindData find = new Win32FindData();
bool findResult = true;
FindExFlags searchFlags;
FindExInfoLevels infoLevel;
if (SupportsExtraFindOptions)
{
searchFlags = FindExFlags.LargeFetch;
infoLevel = FindExInfoLevels.Basic;
}
else
{
searchFlags = FindExFlags.None;
infoLevel = FindExInfoLevels.Standard;
}
IntPtr hFind = FindFirstFileEx(path,
infoLevel, out find,
FindExSearchOps.NameMatch, IntPtr.Zero,
searchFlags);
if (hFind == InvalidHandle)
{
throw new Win32Exception();
}
try {
// Skip the '.' and '..' file entries.
while (find.IsRelativeDirectory && findResult)
{
findResult = FindNextFile(hFind, out find);
}
return(!findResult);
}
finally {
FindClose(hFind);
}
}
