Unzip Encrypted Text into a String Variable

Demonstrates how to open an encrypted .zip archive and unzip a text file directly into a string variable.

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// Needs #include <CkZip.h>
// Needs #include <CkZipEntry.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;
    }

    //  Locate the file within the Zip to be unzipped into a string variable:
    CkZipEntry *entry = 0;
    entry = zip.FirstMatchingEntry("*.csv");
    if (!(entry == 0 )) {

        //  There are a few different InflateToString methods.
        //  InflateToString allows you to control line-endings LF-only vs. CRLF
        //  InflateToString2 returns the line-endings unmodified.
        //  Both InflateToString and InflateToString2 assume the
        //  data consists of ANSI characters.
        //  The InflateToString3 method allows for text stored in different
        //  character encodings to be returned as a string

        //  This example uses InflateToString2 -- line endings are
        //  unmodified and the text is simple ANSI...
        const char * strCsv;
        strCsv = entry->inflateToString2();
        strOut.append(strCsv);
        strOut.append("\r\n");
        delete entry;
    }
    else {
        strOut.append("No matching entry found!");
        strOut.append("\r\n");
    }



    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());