private static extern SafeInternetHandle DoFtpFindFirstFile(SafeInternetHandle hConnect, string lpszSearchFile, out FtpWin32FindData lpFindFileData, FtpHandle.FindFilesFlags dwFlags, IntPtr dwContext);
/// <summary>
/// Invokes <c>FtpFindFirstFile</c>, handling error conditions. Returns <c>false</c> if there are no matching files.
/// </summary>
/// <param name="connect">The internet connection handle.</param>
/// <param name="search">The search string, which may include wildcards and/or directory information.</param>
/// <param name="flags">Additional flags for this action.</param>
/// <param name="first">On return, the details for the first matching remote file/directory.</param>
/// <param name="find">On return, the find handle.</param>
/// <returns><c>true</c> if there is at least one matching file; <c>false</c> otherwise.</returns>
public static bool FtpFindFirstFile(SafeInternetHandle connect, string search, FtpHandle.FindFilesFlags flags, out FtpDirectoryEntry first, out SafeInternetHandle find)
{
FtpWin32FindData data;
find = DoFtpFindFirstFile(connect, search, out data, flags, (IntPtr)1);
if (find.IsInvalid)
{
if (Marshal.GetLastWin32Error() == ERROR_NO_MORE_FILES)
{
first = new FtpDirectoryEntry();
return(false);
}
throw GetLastInternetException();
}
first = data.ToFtpDirectoryEntry();
return(true);
}
