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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. Note: This example requires Chilkat v11.0.0 or greater.
#include <CkBinData.h> #include <CkCompression.h> #include <CkStringBuilder.h> void ChilkatSample(void) { bool success = false; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkBinData bdCompressed; CkCompression compress; compress.put_Algorithm("deflate"); compress.put_Charset("utf-8"); CkStringBuilder sbUncompressedChunk; compress.put_FirstChunk(true); compress.put_LastChunk(false); int i; for (i = 0; i <= 24; i++) { if (i == 24) { compress.put_LastChunk(true); } sbUncompressedChunk.Clear(); sbUncompressedChunk.AppendInt(i); sbUncompressedChunk.Append(": This is a line of data to be compressed...\r\n"); compress.CompressSb(sbUncompressedChunk,bdCompressed); compress.put_FirstChunk(false); } // Show the compressed data in hex format: std::cout << "The hex encoded compressed text:" << "\r\n"; std::cout << bdCompressed.getEncoded("hex") << "\r\n"; // Now decompress in one call. It is important to set both FirstChunk and LastChunk = true CkBinData bdDecompressed; compress.put_FirstChunk(true); compress.put_LastChunk(true); success = compress.DecompressBd2(bdCompressed,bdDecompressed); if (success == false) { std::cout << compress.lastErrorText() << "\r\n"; return; } const char *originalText = bdDecompressed.getString("utf-8"); std::cout << originalText << "\r\n"; } |
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