How to use of code chunks as parameters to c preprocessor directives?

Question

Is there a way to provide a macro with entire chunks of code as a parameter and expand it into the definition?

#define PATTERN(param,func)\
    chk=new wxCheckBox(page,wxID_ANY,param);\
    sizer->Add(chk,0,0,0);\
    chk->Bind(wxEVT_CHECKBOX,func);

PATTERN("checkbox 1",
 //piece of code
 [=](wxCommandEvent& event){
   wxMessageBox(wxT("test"),wxT(""),wxICON_INFORMATION);
  }
 //end of code
)

How to encapsulate code for these means? I want to be able to do:

   #define DERIVATIVE(s)\
      PATTERN(...)

Answer 1

You're better off using two sets of macros for this

#define TEMPLATE_CODE(INSERTME) \
  ... \
  INSERTME(); \
  ...

#define SPECIALIZED_CODE() \
  ...

TEMPLATE_CODE(SPECIALIZED_CODE);

As an example,

#define TEMPLATE_CODE(INSERTME, ARG) void sayhello(void) { INSERTME(ARG); }
#define OTHER_TEMPLATE(INSERTME, ARG) class myclass { INSERTME(ARG); }
#define FIRST_IMPL(ARG) cout << ARG << endl
#define WRAPPER() TEMPLATE_CODE(FIRST_IMPL, ARG)
OTHER_TEMPLATE(WRAPPER, "hello world")
#undef FIRST_IMPL
#undef WRAPPER