Why does CkHttp_quickGetStr function returns a const char* ?

I assume this is for "C" programming?

Any method that returns a string has 2 forms. The lowercase form returns a "const char *" to internal memory. The uppercase form deposits the string in the CkString object that is passed in the last argument.

For example:

BOOL CkHttp_QuickGetStr(HCkHttp cHandle, const char *url, HCkString outStr);

const char CkHttp_quickGetStr(HCkHttp cHandle, const char url);

The uppercase form might be used like this:

HCkString strObj;
HCkHttp http;
BOOL success;
const char *html;

strObj = CkString_Create();
http = CkHttp_Create();
success = CkHttp_quickGetStr(http,"https://www.paypal.com/",strObj);
html = CkString_getStringUtf8(strObj);
...
CkHttp_Dispose(http);
CkString_Dispose(strObj);

If using the lowercase form, then be sure to use the string pointed to by the returned "const char *" before the CkHttp object is disposed, and before calling other methods. (Actually, you can call up to 10 methods before the least recent "const char *" is recycled.) If your app needs to keep a copy of the string, it should strcpy it to somewhere else. (or you can use the uppercase version of the method and just keep the strObj around..)