Unicode 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. Unicode C

#include <C_CkGzipW.h>
#include <C_CkBinDataW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkGzipW gzip;
    HCkBinDataW fileData;
    const wchar_t *strBase64;
    const wchar_t *strBase64MultiLine;

    success = FALSE;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    gzip = CkGzipW_Create();

    // This example will load a file into the fileData object.
    // Your application might load fileData from other sources..
    fileData = CkBinDataW_Create();
    success = CkBinDataW_LoadFile(fileData,L"qa_data/xml/hamlet.xml");
    if (success != TRUE) {
        wprintf(L"Failed to load file.\n");
        CkGzipW_Dispose(gzip);
        CkBinDataW_Dispose(fileData);
        return;
    }

    // In-place compress the contents of fileData
    success = CkGzipW_CompressBd(gzip,fileData);
    if (success != TRUE) {
        wprintf(L"%s\n",CkGzipW_lastErrorText(gzip));
        CkGzipW_Dispose(gzip);
        CkBinDataW_Dispose(fileData);
        return;
    }

    // Get the base64 encoded compressed data (in a single line).
    strBase64 = CkBinDataW_getEncoded(fileData,L"base64");
    wprintf(L"%s\n",strBase64);
    wprintf(L"--------\n");

    // To get the base64 in multiple lines, as it might appear in MIME,
    // use "base64-mime".
    strBase64MultiLine = CkBinDataW_getEncoded(fileData,L"base64-mime");
    wprintf(L"%s\n",strBase64MultiLine);


    CkGzipW_Dispose(gzip);
    CkBinDataW_Dispose(fileData);

    }