/* Well, I'll try to explain my problem in english. I'm dealing with the MFC, when your receive a message, you need to do a thing like this to intercept it : */ ON_COMMAND(IDC_ACTIONSCAN, &FunctionAdress) /* What I want is to put a variable instead of FunctionAdress which will contain a function adress, it will make my programme possible to dynamicly change the adress of the function and use a different function. The problem is that it don't work, impossible to cast a var to a AFX_PMSG, even with a reinterpret_cast */ class myclass { //[...] afx_msg static int a_variable; //contain the adress of the function afx_msg void OnMenuModuleMenuDefault(); //it work if I use this function //[...] } myclass::OnMenuModuleMenuDefault{ DoSomething() } myclass::_variable = //adresse of a default function, will be changed if a dll is loaded or something else