Sample code for 30+ languages & platforms
Unicode C++

URL Encoding and Decoding

Demonstrates URL encoding/decoding using the HTTP convenience methods.

Chilkat Unicode C++ Downloads

Unicode C++
#include <CkHttpW.h>

void ChilkatSample(void)
    {
    CkHttpW http;

    const wchar_t *s = L"Hello World! 100% sure.";

    const wchar_t *encoded = http.urlEncode(s);
    wprintf(L"URL encoded: %s\n",encoded);

    //  Space → %20
    //  ! → %21
    //  % → %25

    const wchar_t *decoded = http.urlDecode(encoded);
    wprintf(L"URL decoded: %s\n",decoded);

    //  Output:

    //  URL encoded: Hello%20World%21%20100%25%20sure.
    //  URL decoded: Hello World! 100% sure.
    }