Create a .zip, clearing the archive attribute of each file zipped (i.e. Incremental Backup).

How to create a .zip archive such that each file zipped will have it's archive file attribute cleared.

Download Chilkat C++ Libraries for VC++ 8.0 / Win32

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#include <CkZip.h>

void ChilkatSample(void)
    {
    CkZip zip;

    bool success;

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

    success = zip.NewZip("test.zip");
    if (success != true) {
        printf("%s\n",zip.lastErrorText());
        return;
    }

    //  Tell the component to clear each file's archive attribute
    //  when zipping.
    zip.put_ClearArchiveAttribute(true);

    //  Append a directory tree.
    //  Notice that the archiveOnly flag is set to true.  This
    //  means that only files with the "File is ready for archiving" bit
    //  set will be included.  (In Windows Explorer, right-click a file
    //  and select Properties.  Then click the Advanced button.  You'll
    //  see the "File is ready for archiving" checkbox.
    //  This becomes automatically checked whenever a file is modified (or created).
    //  The AppendFilesEx method will only add files ready for
    //  archiving, and the WriteZipAndClose method will clear the
    //  archive attribute for each file zipped.  The result is that
    //  each time you run this program, only the modified files are zipped.
    bool recurse;
    recurse = true;
    bool archiveOnly;
    archiveOnly = true;
    bool includeHidden;
    includeHidden = true;
    bool includeSystem;
    includeSystem = true;
    bool saveExtraPath;
    saveExtraPath = false;
    zip.AppendFilesEx("c:/temp/abc123/*",recurse,saveExtraPath,archiveOnly,includeHidden,includeSystem);

    success = zip.WriteZipAndClose();
    if (success != true) {
        printf("%s\n",zip.lastErrorText());
        return;
    }

    printf("Zip Created!\n");
    }