.net - How does one invoke a method on a ref class instance through reflection which returns a native pointer? -

i attempting invoke method on ref class instance through reflection, returns native pointer.

example ref class header:

public ref class myrefclass : public idisposable { public:  mynativetype* getnativeinstance();  //rest of header... } 

here example of failed attempt @ reflection

void invokethemethod(object^ obj) {      mynativetype* mynative;      getnativeinvoker^ del = (getnativeinvoker^) delegate::createdelegate(getnativeinvoker::typeid, obj, "getnativeinstance");       //get pointer , use if bind succeeds mynative = del();      //else handle case object not have getnativeinstance() } 

using delegate

delegate mynativetype* getnativeinvoker(); 

when trying create delegate bind fails argumentexception if object instance of ref class has method "getnativeinstance" (like myrefclass). problem has solved without knowing obj's type @ compile time other fact object^.

the problem not using reflection. delegate::createdelegate() allowed on delegate types, yours isn't one. use reflection fix, type::getmethod() returns method. (minus cleanup):

using namespace system; using namespace system::reflection;  class mynativetype {};  public ref class myrefclass {     mynativetype* instance; public:     delegate void* getnativeinvoker();      myrefclass() { instance = new mynativetype; }     mynativetype* getnativeinstance() { return instance; }      static void test() {         myrefclass^ obj = gcnew myrefclass;         methodinfo^ mi = obj->gettype()->getmethod("getnativeinstance");         object^ result = mi->invoke(obj, nullptr);         void* ptr = pointer::unbox(result);         system::diagnostics::debug::assert(ptr == obj->getnativeinstance());     } };