Unzip Password-Protected or WinZip AES Encrypted Zip

C++ example showing how to unzip an encrypted zip.

    // Unzip password-protected or WinZip AES strong encrypted zips.
    // Simply set the password prior to opening the zip.
    CkZip zip2;
    zip2.UnlockComponent("Anything for 30-day trial");

    zip2.SetPassword("test");
    
    bool success = zip2.OpenZip("myZip.zip");
    if (!success)
	{
	zip2.SaveLastError("lastError.txt");
	return;
	}

    // Unzip into the "abc" subdirectory
    int numFilesUnzipped = zip2.Unzip("abc");
    if (numFilesUnzipped < 0)
	{
	zip2.SaveLastError("lastError.txt");
	return;
	}

    return;