(Unicode C) Replace/Update a FIle in a .zip

Demonstrates how to replace/update a file from a .zip. Note: This requires the entire .zip to be rewritten.

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#include <C_CkZipW.h>
#include <C_CkZipEntryW.h>

void ChilkatSample(void)
    {
    HCkZipW zip;
    BOOL success;
    HCkZipEntryW entry;
    HCkZipW zip2;

    // 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..
    zip = CkZipW_Create();

    CkZipW_NewZip(zip,L"qa_output/abc.zip");

    // Add some files..
    entry = CkZipW_AppendString(zip,L"a.txt",L"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa");
    CkZipEntryW_Dispose(entry);
    entry = CkZipW_AppendString(zip,L"b.txt",L"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb");
    CkZipEntryW_Dispose(entry);
    entry = CkZipW_AppendString(zip,L"c.txt",L"cccccccccccccccccccccccccccccccccccc");
    CkZipEntryW_Dispose(entry);

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

    // -------------------------------------------------------------------
    // Open abc.zip, replace the content of the "b.txt" entry with something else, and re-write.
    zip2 = CkZipW_Create();
    CkZipW_OpenZip(zip2,L"qa_output/abc.zip");

    entry = CkZipW_GetEntryByName(zip2,L"b.txt");
    CkZipEntryW_ReplaceString(entry,L"This is the new content.  bbbbbbbbbbbbbbbbbbbbbb",L"utf-8");
    CkZipEntryW_Dispose(entry);
    // Write the modified .zip back to "abc.zip"
    success = CkZipW_WriteZipAndClose(zip2);

    wprintf(L"success.\n");


    CkZipW_Dispose(zip);
    CkZipW_Dispose(zip2);

    }