Unzip an Encrypted Zip

Demonstrates how to open an encrypted .zip archive and unzip.

Downloads:

MS Windows Visual C/C++ Libraries

Linux/CentOS C/C++ Libraries

MAC OS X C/C++ Libraries

Solaris C/C++ Libraries

C++ Builder Libraries

// Needs #include <CkZip.h>

    CkString strOut;

    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) {
        strOut.append(zip.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    //  Set the password required for decrypting.
    zip.put_DecryptPassword("myPassword");

    success = zip.OpenZip("encrypted.zip");
    if (success != true) {
        strOut.append(zip.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    long unzipCount;

    //  Returns the number of files and directories unzipped.
    unzipCount = zip.Unzip("c:/unzipDir");
    if (unzipCount < 0) {
        strOut.append(zip.lastErrorText());
        strOut.append("\r\n");
    }
    else {
        strOut.append("Success!\r\n");
    }


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());