C++

Gzip Compress In Memory and Base64 Encode

See more Gzip Examples

Demonstrates how to Gzip compress in-memory data and then encode the compressed data to base64. C++

#include <CkGzip.h>
#include <CkBinData.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.

    CkGzip gzip;

    // This example will load a file into the fileData object.
    // Your application might load fileData from other sources..
    CkBinData fileData;
    success = fileData.LoadFile("qa_data/xml/hamlet.xml");
    if (success != true) {
        std::cout << "Failed to load file." << "\r\n";
        return;
    }

    // In-place compress the contents of fileData
    success = gzip.CompressBd(fileData);
    if (success != true) {
        std::cout << gzip.lastErrorText() << "\r\n";
        return;
    }

    // Get the base64 encoded compressed data (in a single line).
    const char *strBase64 = fileData.getEncoded("base64");
    std::cout << strBase64 << "\r\n";
    std::cout << "--------" << "\r\n";

    // To get the base64 in multiple lines, as it might appear in MIME,
    // use "base64-mime".
    const char *strBase64MultiLine = fileData.getEncoded("base64-mime");
    std::cout << strBase64MultiLine << "\r\n";
    }