Unicode C++

Compress String Feed to Base64

See more Compression Examples

This example receives incoming text data in chunks, compresses as a stream, and accumulates the compressed data in base64. Unicode C++

#include <CkStringBuilderW.h>
#include <CkCompressionW.h>
#include <CkBinDataW.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.

    CkStringBuilderW sbCompressedBase64;

    CkCompressionW compress;
    compress.put_Algorithm(L"deflate");
    compress.put_Charset(L"utf-8");
    compress.put_EncodingMode(L"base64");

    compress.put_FirstChunk(true);
    compress.put_LastChunk(false);

    CkBinDataW bdCompressed;
    CkStringBuilderW sbUncompressedChunk;

    int i;
    for (i = 0; i <= 24; i++) {
        if (i == 24) {
            compress.put_LastChunk(true);
        }

        sbUncompressedChunk.Clear();
        sbUncompressedChunk.AppendInt(i);
        sbUncompressedChunk.Append(L": This is a line of data to be compressed...\r\n");

        compress.CompressSb(sbUncompressedChunk,bdCompressed);

        compress.put_FirstChunk(false);
    }

    wprintf(L"The base64 encoded compressed text:\n");
    wprintf(L"%s\n",bdCompressed.getEncoded(L"base64"));

    // Decompress in one call:
    const wchar_t *originalText = compress.decompressStringENC(bdCompressed.getEncoded(L"base64"));
    wprintf(L"%s\n",originalText);
    }