(Unicode C++) Remove a File from a .zip

Demonstrates how to remove a file from a .zip.

Note: This example requires Chilkat v11.0.0 or greater.

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#include <CkZipW.h>
#include <CkZipEntryW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    // First prepare a .zip and write it..
    CkZipW zip;

    zip.NewZip(L"qa_output/abc.zip");

    // Add some files..
    const wchar_t *charset = L"utf-8";
    zip.AddString(L"a.txt",L"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",charset);
    zip.AddString(L"b.txt",L"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",charset);
    zip.AddString(L"c.txt",L"cccccccccccccccccccccccccccccccccccc",charset);

    // Write to qa_output/abc.zip
    // This .zip contains three files: a.txt, b.txt, and c.txt
    success = zip.WriteZipAndClose();

    // -------------------------------------------------------------------
    // Open abc.zip, remove an entry, and re-write.
    CkZipW zip2;
    zip2.OpenZip(L"qa_output/abc.zip");

    CkZipEntryW entry;
    success = zip2.EntryOf(L"b.txt",entry);
    if (success != false) {
        zip2.DeleteEntry(entry);
    }

    // Write the modified .zip back to "abc.zip"
    success = zip2.WriteZip();

    // To write to a different filename, change the FileName..
    zip2.put_FileName(L"qa_output/ac.zip");
    success = zip2.WriteZipAndClose();

    wprintf(L"success.\n");
    }