Unicode C++

Append Dir Tree to Existing Zip w/out Rewriting Entire Zip

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Demonstrates how to use the QuickAppend method to append a directory tree to an existing .zip archive. This method works by editing the existing .zip -- it does not rewrite or recompress the contents of the existing .zip. It is the fastest way to append additional files to a pre-existing large .zip archive. Unicode C++

#include <CkZipW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkZipW zip;

    //  The NewZip method only initializes the Zip object -- it does
    //  not create or write a .zip file.
    success = zip.NewZip(L"notUsed.zip");
    if (success == false) {
        wprintf(L"%s\n",zip.lastErrorText());
        return;
    }

    //  Add a references to all files in a directory tree.
    //  Note: this does not read or compress the file contents --
    //  it simply adds file references to the zip object.
    bool recurse = true;
    success = zip.AppendFiles(L"c:/temp/abc123/*",recurse);
    if (success == false) {
        wprintf(L"%s\n",zip.lastErrorText());
        return;
    }

    //  Appends the contents of the zip object to the preExisting.zip
    //  zip archive.  preExisting.zip is opened, and the files
    //  referenced by this zip object are streamed in, compressed,
    //  and appended to the end of the archive.
    success = zip.QuickAppend(L"preExisting.zip");
    if (success == false) {
        wprintf(L"%s\n",zip.lastErrorText());
        return;
    }

    wprintf(L"Success!\n");

    //  Note: Additional files, directory trees, or in-memory data
    //  can be appended by calling AddFile, AppendFiles,
    //  AddString, AddBd, AddSb, etc. multiple times.
    //  Whatever files and/or in-memory data that are referenced by
    //  this zip object will be appended to preExisting.zip when
    //  QuickAppend is called.
    }