Class reference: KIF C++ class reference
To use the KIF API in C++, include the file kifclass.h and link with the kifparse.lib library.
You will probably find it more convenient to construct KIF expressions by forming strings rather than constructing C++ objects. You can then either parse the string to produce a KIF expression object and pass that to Agent Toolkit functions, or leave it as a string and directly pass it to the Agent Toolkit functions that are suffixed with 'String', for efficiency.