(Unicode C++) Demonstrate the Global.AutoQBDecode property

The Global.AutoQBDecode property can be set to true to cause Q/B encoded string arguments passed to any Chilkat method to be automatically decoded before being used.

Note: This example requires Chilkat v10.0.0 or later.

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

#include <CkGlobalW.h>
#include <CkStringBuilderW.h>

void ChilkatSample(void)
    {
    // Turn on auto Q/B decoding for all strings passed to any Chilkat method in any Chilkat class.
    CkGlobalW glob;
    glob.put_AutoQBDecode(true);

    // ---------------------------------------------------------------------------------------------------------------------------------------------
    // "Q" Encoding

    // Quoted-Printable encoding is primarily used for text that is mostly ASCII with some non-ASCII characters. 
    // It encodes these characters in a way that remains mostly readable and compatible with ASCII-only systems.

    // How It Works with UTF-8:
    // - ASCII characters (except special characters like `=`) are encoded as themselves.
    // - Non-ASCII characters are represented by their UTF-8 byte values, each byte encoded as `=` followed by two hexadecimal digits. 
    //   For example, the UTF-8 character "é" (U+00E9) is encoded as `=C3=A9`.

    // For example, consider the text "Café" encoded in UTF-8. The UTF-8 bytes for "é" are `C3 A9`, so in Quoted-Printable, it looks like this:  Caf=C3=A9

    // The "Q" encoding has this syntax:  "=?charset?q?encoded_text?="
    // For example: "=?UTF-8?Q?Caf=C3=A9_announcement?="

    // ------
    // "B" Encoding

    // Base64 encoding is used to encode non-ASCII text, making it more suitable for text with a high density of non-ASCII characters, such as those found in non-Western European languages.

    // For example, consider the text "こんにちは" ("Hello" in Japanese).
    // The "B" encoded string would be "=?UTF-8?B?44GT44KT44Gr44Gh44Gv?="

    // ------
    // Q encoding is suitable for text that is mostly ASCII.
    // B Encoding is best for text that is densely packed with non-us-ascii chars, such as non-Latin (Asian) languages.
    // ---------------------------------------------------------------------------------------------------------------------------------------------

    // You can use Chilkat's online tool at Online Binary Encoder to pre-encode your literal strings before
    // inserting them into your source code.

    // When using the online tool, choose either "MIME header Q Encoding" or "MIME Header B Encoding".

    // For example:
    const wchar_t *s_cafe = L"=?utf-8?Q?Caf=C3=A9?=";
    CkStringBuilderW s1;
    s1.Append(s_cafe);
    wprintf(L"%s\n",s1.getAsString());
    // Output is Café

    const wchar_t *s_hello = L"=?UTF-8?B?44GT44KT44Gr44Gh44Gv?=";
    CkStringBuilderW s2;
    s2.Append(s_hello);
    wprintf(L"%s\n",s2.getAsString());
    // Output is こんにちは
    }