Need to wrap __stdcall member function as C style callback

I am trying to pass a C++ member function as a C style callback to a C library. The code below is what I have so far, using C++11 bind. Compiler is VS 2015.

The code works if I don't use windows __stdcall compiler extension. But, if I do , I get the error:

error C2893: Failed to specialize function template 'unknown-type std::invoke(_Callable &&,_Types &&...)'

The compiler doesn't like the cast. at the end of the code sample.

cannot determine which instance of 'Callback......" is intended.

// C style callback
typedef void (__stdcall *callback_t)(cl_event evt, cl_int cmd_exec_status, void *encodeData);

// C++ callback
template <typename T> struct Callback;

template <typename Ret, typename... Params> struct Callback<Ret(Params...)> {
    template <typename... Args> 
    static Ret callback(Args... args) {
        func(args...);
    }
    static std::function<Ret(Params...)> func;
};

template <typename Ret, typename... Params>    std::function<Ret(Params...)> Callback<Ret(Params...)>::func;

class A {
    A() {

    void  __stdcall ClusterEncoder::e(cl_event evt, cl_int cmd_exec_status, void *encodeData) {
        Callback<void(cl_event, cl_int, void*)>::func = std::bind(&ClusterEncoder::e, this, std::placeholders::_3);
        callback_t func = static_cast<callback_t>(Callback<void(cl_event, cl_int, void*)>::callback);
    }

};