C++

Compress Text from StringBuilder to Gzip (BinData Output)

See more Gzip Examples

This example demonstrates how to use the CompressSb method to compress text stored in a StringBuilder into Gzip format.

The text is first converted to its byte representation using the specified character set (in this case, UTF-8). These bytes are then compressed, and the resulting Gzip data is written to a BinData object in memory.

This approach is useful when working with dynamically generated text that you want to compress without first writing it to a file. The example also shows how the compressed data can optionally be saved to a .gz file.

C++

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

void ChilkatSample(void)
    {
    bool success = false;

    // This example demonstrates how to compress text contained in a StringBuilder
    // into Gzip format, storing the compressed result in a BinData object.

    CkGzip gzip;
    CkStringBuilder sb;
    CkBinData bd;

    // Add some text to the StringBuilder:
    sb.Append("The quick brown fox jumps over the lazy dog.");

    // Compress the text using UTF-8 encoding:
    success = gzip.CompressSb(sb,"utf-8",bd);
    if (success == false) {
        std::cout << gzip.lastErrorText() << "\r\n";
        return;
    }

    // The BinData now contains the Gzip-compressed bytes.
    std::cout << "Compression successful." << "\r\n";
    std::cout << "Compressed size (bytes): " << bd.get_NumBytes() << "\r\n";

    // (Optional) Save to a .gz file:
    success = bd.WriteFile("text.gz");
    if (success == false) {
        std::cout << bd.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Gzip file written to text.gz" << "\r\n";
    }