/// <summary>
/// Determines whether a file, identified by a stream, is a cabinet file.
/// </summary>
/// <param name="fstream">The open file stream to be tested.</param>
/// <param name="cabinfo">A <see cref="FdiCabinetInfo"/> object that will receive information about the cabinet file.</param>
/// <returns>Returns True if the file is a cabinet. If so, the cabinfo object is filled with information about the cabinet file.
/// Returns False if the file is not a cabinet.</returns>
public bool IsCabinetFile(Stream fstream, FdiCabinetInfo cabinfo)
{
if (disposed)
{
throw new ObjectDisposedException("CabDecompressor");
}
GCHandle gch = GCHandle.Alloc(fstream);
try
{
return CabSdk.FdiIsCabinet(FdiContext, (IntPtr)gch, cabinfo);
}
finally
{
gch.Free();
}
}
public static extern bool FdiIsCabinet(
IntPtr hfdi,
IntPtr hf,
FdiCabinetInfo cabInfo);
/// <summary>
/// Determines whether a file, identified by a file name, is a cabinet file.
/// </summary>
/// <param name="filename">The name of the file to be tested.</param>
/// <param name="cabinfo">A <see cref="FdiCabinetInfo"/> object that will receive information about the cabinet file.</param>
/// <returns>Returns True if the file is a cabinet. If so, the cabinfo object is filled with information about the cabinet file.
/// Returns False if the file is not a cabinet.</returns>
public bool IsCabinetFile(string filename, FdiCabinetInfo cabinfo)
{
if (disposed)
{
throw new ObjectDisposedException("CabDecompressor");
}
using (FileStream fs = File.Open(filename, FileMode.Open,
FileAccess.Read, FileShare.ReadWrite))
{
return IsCabinetFile(fs, cabinfo);
}
}