GZip Create .gz File

Demonstrates how to compress a file to create a .gz (GZip) file.

Note: The .gz file format is a compressed file format. It contains a single file. The .gz file format is not an archive format (i.e. it does not contain a collection of files/directories such as with the .zip, .rar, or .tar file formats). GZip is often combined with TAR to create a .tgz (or .tar.gz).

Note: It is possible for a .gz to contain more than one file, but this is very uncommon.

Downloads:

MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

Solaris C/C++ Libraries

C++ Builder Libraries

FreeBSD C++ Libraries

HP-UX C++ Libraries

BlackBerry QNX C++ Libraries

#include <C_CkGzip.h>

void ChilkatSample(void)
    {
    HCkGzip gzip;
    BOOL success;
    const char * xmlStr;


    gzip = CkGzip_Create();

    //  Any string unlocks the component for the 1st 30-days.
    success = CkGzip_UnlockComponent(gzip,"Anything for 30-day trial");
    if (success != TRUE) {
        printf("%s\n",CkGzip_lastErrorText(gzip));
        return;
    }

    //  File-to-file GZip:
    //  Compress "hamlet.xml" to create "hamlet.xml.gz"
    success = CkGzip_CompressFile(gzip,"hamlet.xml","hamlet.xml.gz");
    if (success != TRUE) {
        printf("%s\n",CkGzip_lastErrorText(gzip));
        return;
    }

    //  File-to-file ungzip
    //  Decompress "hamlet.xml.gz" to create "hamletOut.xml"
    success = CkGzip_UncompressFile(gzip,"hamlet.xml.gz","hamletOut.xml");
    if (success != TRUE) {
        printf("%s\n",CkGzip_lastErrorText(gzip));
        return;
    }

    //  File-to-string ungzip
    //  Decompress the contents of a .gz directly to a string variable:
    //  The 2nd argument indicates the charset of the character
    //  data after it is decompressed.

    xmlStr = CkGzip_uncompressFileToString(gzip,"hamlet.xml.gz","utf-8");
    if (success != TRUE) {
        printf("%s\n",CkGzip_lastErrorText(gzip));
        return;
    }

    printf("%s\n",xmlStr);

    //  The Chilkat GZip API provides much more flexibility than shown
    //  here.  See the reference documentation at
    //  http://www.chilkatsoft.com/refdoc for more information.



    CkGzip_Dispose(gzip);

    }