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(C#) Compress Text Feed to BinaryThis example receives incoming text data in chunks, compresses as a stream, and accumulates the compressed binary data. The purpose is to demonstrate the BeginCompressString, MoreCompressString, and EndCompressString methods.
// This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. bool success; Chilkat.BinData compressedData = new Chilkat.BinData(); byte[] compressedBytes = null; Chilkat.Compression compress = new Chilkat.Compression(); compress.Algorithm = "deflate"; compress.Charset = "utf-8"; Chilkat.StringBuilder sbIndex = new Chilkat.StringBuilder(); int i; for (i = 0; i <= 24; i++) { // Note: It is possible (and normal) for a BeginCompress* or MoreCompress* method to return // an empty string (or 0 bytes). When this happens, the input data is not lost. It will be flushed // in a subsequent call. sbIndex.Clear(); sbIndex.AppendInt(i); if (i == 0) { compressedBytes = compress.BeginCompressString(sbIndex.GetAsString()); } else { compressedBytes = compress.MoreCompressString(sbIndex.GetAsString()); } compressedData.AppendBinary(compressedBytes); compressedBytes = compress.MoreCompressString(": This is a line of data to be compressed...\r\n"); compressedData.AppendBinary(compressedBytes); } // Flush any remaining output. compressedBytes = compress.EndCompressString(); compressedData.AppendBinary(compressedBytes); // Show the compressed data in hex format: Debug.WriteLine("The hex encoded compressed text:"); Debug.WriteLine(compressedData.GetEncoded("hex")); // Now decompress in one call: compressedBytes = compressedData.GetBinary(); string originalText = compress.DecompressString(compressedBytes); Debug.WriteLine(originalText); |
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