Unicode 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.

Unicode C++

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

    CkGzipW gzip;
    CkStringBuilderW sb;
    CkBinDataW bd;

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

    // Compress the text using UTF-8 encoding:
    success = gzip.CompressSb(sb,L"utf-8",bd);
    if (success == false) {
        wprintf(L"%s\n",gzip.lastErrorText());
        return;
    }

    // The BinData now contains the Gzip-compressed bytes.
    wprintf(L"Compression successful.\n");
    wprintf(L"Compressed size (bytes): %d\n",bd.get_NumBytes());

    // (Optional) Save to a .gz file:
    success = bd.WriteFile(L"text.gz");
    if (success == false) {
        wprintf(L"%s\n",bd.lastErrorText());
        return;
    }

    wprintf(L"Gzip file written to text.gz\n");
    }