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Replace a File within a Zip

Demonstrates how to replace a file within a .zip

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

Download Chilkat C++ Libraries for VC++ 7.0 / Win32

Download Chilkat C++ Libraries for VC++ 6.0 / Win32

#include <CkZip.h>
#include <CkZipEntry.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.OpenZip("a.zip");
    if (success != true) {
        printf("%s\n",zip.lastErrorText());
        return;
    }

    CkZipEntry *entry = 0;

    //  Locate the entry:
    entry = zip.FirstMatchingEntry("*HelloWorld123.txt");

    if (!(entry == 0 )) {

        zip.DeleteEntry(*entry);
        delete entry;

        bool saveExtraPath;
        saveExtraPath = false;
        success = zip.AppendOneFileOrDir("c:/temp/HelloWorld123.txt",saveExtraPath);
        if (success != true) {
            printf("%s\n",zip.lastErrorText());
            return;
        }

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

        printf("Entry replaced and .zip re-written.\n");

    }
    else {
        printf("Entry not found.\n");
    }

    }

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