(C#) Using a .NET System.IO.Stream with Chilkat

Important: The Chilkat.StreamConnector class is not available in .NET Core or Mono. It is available only in the traditional Chilkat .NET assemblies.

The Chilkat.StreamConnector is a utility class to connect a System.IO.Stream to a Chilkat.Stream. Once connected, a .NET application can read or write a System.IO.Stream.

Here we have a trivial example showing how to connect a System.IO.Stream to a Chilkat.Stream.

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// First we'll demonstrate how to use a System.IO.FileStream as a source.
// Note: Any type of System.IO.Stream could be used, not just FileStream.

string srcPath = "qa_data/hamlet.xml";

System.IO.FileStream fs = File.OpenRead(srcPath);

Chilkat.StreamConnector sc = new Chilkat.StreamConnector();
Chilkat.Stream stream = new Chilkat.Stream();

// Set the System.IO.FileStream as the source for the Chilkat.Stream.
// When the Chilkat.Stream needs input, it will read from the System.IO.FileStream
bool success = sc.SetAsSource(fs,stream);

// Set the stream's output (sink) to a file.
string outPath = "qa_output/hamlet_copy_2.xml";
stream.SinkFile = outPath;

// Run the stream to copy from source to sink.
success = stream.RunStream();
if (success != true) {
    Debug.WriteLine(stream.LastErrorText);
    return;
}

Debug.WriteLine("File successfully streamed from a System.IO.Stream.");

// ----------------------------------------------------
// Now let's output to a System.IO.Stream

// Call Reset to make sure the Chilkat.Stream object has closed everything
// and is ready for something new..
stream.Reset();

// Clear the SinkFile property.  We'll be writing to a System.IO.Stream instead..
stream.SinkFile = "";

// Open a file for writing:
string path3 = "qa_output/hamlet_copy_3.xml";

System.IO.FileStream fsOut = File.OpenWrite(path3);

stream.SourceFile = srcPath;

// Set the fsOut to be the sink of the Chilkat.Stream
success = sc.SetAsSink(fsOut,stream);

// Run the stream.
// The file is copied from the source to the sink...
success = stream.RunStream();

// Make sure we close our System.IO.Stream

fsOut.Close();

if (success != true) {
    Debug.WriteLine(stream.LastErrorText);
    return;
}

Debug.WriteLine("File successfully streamed to a System.IO.Stream.");