Get memory address of member function?

Question

How do I get the absolute address of a member function in C++? (I need this for thunking.)

Member function pointers don\'t work because I can\'t convert the

Answer 1

By default, C++ member functions use the __thiscall calling convention. In order to Detour a member function, both the trampoline and the detour must have exactly the same calling convention as the target function. Unfortunately, the VC compiler does not support a __thiscall, so the only way to create legal detour and trampoline functions is by making them class members of a "detour" class.

In addition, C++ does not support converting a pointer to a member function to an arbitrary pointer. To get a raw pointer, the address of the member function must be moved into a temporrary member-function pointer, then passed by taking it's address, then de-referencing it. Fortunately, the compiler will optimize the code to remove the extra pointer operations.

from Microsoft Detour library. They deal with code injection and discuss getting address of non-virual member functions. Of course it is compiler implementation specific stuff.

you can find the library here http://research.microsoft.com/en-us/downloads/d36340fb-4d3c-4ffffd-bf5b-1db25d03713d/default.aspx