How do you handle a “cannot instantiate abstract class” error in C++?

Question

How do you handle a \"cannot instantiate abstract class\" error in C++? I have looked at some of the similar errors here and none of them seem to be exactly the same or prob

Answer 1

In my case i declared a function in COM Control .idl file like

[id(1)] HRESULT MyMethod([in]INT param);

but not declared in my interface .h file like this

STDMETHOD(MyMethod)(INT param);

Problem solved by adding above line into my interface .h file

this might help some one .