C / C++ / MFC

int (*FuncPtr)(char);
 
  FuncPtr = f;

class CYourDialog : public CDialog
{
// ...
CYourDoc *m_pDoc
// ...
};

// this assumes that you're opening the dialog
// in one of the view class methods
CYourDlg dlg;
dlg.m_pDoc = GetDocument();
if (IDOK == dlg.DoModal())
{
// ...
}

typedef BOOL (*MYFUNC)(void*);

    typedef BOOL(MYFUNC)(DATA *data);
</pre

I then try to use this as follows:

<pre>
MYFUNC somefunction
{
    // Do something with the data passed in
    if (data->flag)
    {
        someotherfunction();
        return(TRUE);
    }

    return(FALSE)
}

typedef BOOL (MYFUNC *)(DATA *);
<pre>

which says "Any variable declared as MYFUNC is a pointer to a function that takes a DATA pointer as its parameter, and returns a boolean."

<pre>
MYFUNC func;
DATA d;

d.flag=SOME_FLAG;
if (func(&d))
   MessageBox(NULL, "Success", NULL, MB_OK);

typedef BOOL(MYFUNC)(DATA *data);

MYFUNC somefunction
{
    // Do something with the data passed in
    if (data->flag)
    {
        someotherfunction();
        return(TRUE);
    }

    return(FALSE)
}

#define MYFUNC(fn_name) BOOL(fn_name)(INT *data)
 
MYFUNC(somefunction)
{
    // Do something with the data passed in
    if (*data)
    {
        return(TRUE);
    }
    return(FALSE);
}