(MFC) Quoted-Printable Encode/Decode a String

MFC example to quoted-printable encode and decode a string.

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

See Also: Using MFC CString in Chilkat

#include <CkCrypt2.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkCrypt2 crypt;

    // Here's a string in Icelandic using non us-ascii chars:
    const char *s = "Ég get etið gler án þess að meiða mig.";

    crypt.put_CryptAlgorithm("none");
    crypt.put_EncodingMode("quoted-printable");

    // Quoted-printable encode/decode the iso-8859-1
    // representation of the string.  Notice how each
    // Icelandic char is represented by 1 byte:
    crypt.put_Charset("iso-8859-1");
    const char *qp = crypt.encryptStringENC(s);
    strOut.append("iso-8859-1:");
    strOut.append("\r\n");
    strOut.append(qp);
    strOut.append("\r\n");
    const char *decoded = crypt.decryptStringENC(qp);
    strOut.append(decoded);
    strOut.append("\r\n");

    // Now do the same using utf-8. Notice how each
    // Icelandic char is represented by 2 bytes in utf-8:
    crypt.put_Charset("utf-8");
    const char *qp = crypt.encryptStringENC(s);
    strOut.append("utf-8:");
    strOut.append("\r\n");
    strOut.append(qp);
    strOut.append("\r\n");
    const char *decoded = crypt.decryptStringENC(qp);
    strOut.append(decoded);
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }