(MFC) MIME Header Q and B Encoding and Decoding

Demonstrates how to Q and B encode/decode.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkStringBuilder.h>

void ChilkatSample(void)
    {
    CkString strOut;

    CkStringBuilder sb;
    bool success;

    sb.Append("This is a test");

    strOut.append(sb.getEncoded("B","utf-8"));
    strOut.append("\r\n");
    //  output is:
    //  =?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=

    strOut.append(sb.getEncoded("Q","iso-8859-1"));
    strOut.append("\r\n");
    //  output is:
    //  =?utf-8?Q?This_is_a_test?=

    CkStringBuilder sb2;

    sb2.Append("=?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=");
    sb2.Decode("B","utf-8");
    strOut.append(sb2.getAsString());
    strOut.append("\r\n");

    //  output is:
    //  This is a test

    sb2.Clear();
    sb2.Append("=?utf-8?Q?This_is_a_test?=");
    sb2.Decode("Q","utf-8");
    strOut.append(sb2.getAsString());
    strOut.append("\r\n");

    //  output is:
    //  This is a test

    //  "B" or "Q" will decode both B and Q.
    sb2.Clear();
    sb2.Append("=?utf-8?Q?This_is_a_test?= 123 =?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=");
    sb2.Decode("Q","utf-8");
    strOut.append(sb2.getAsString());
    strOut.append("\r\n");

    //  output is:
    //  This is a test 123 This is a test


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }