Hi,

I need to define/declare a callback function in VC. The call back
function mechanism I used on SGI IRIX doesn't link on VC. It is simply :

typedef void (*TALoggerCbFunc)();

class taLoggable {
    // lots of other stuff

    void regLoggerCb( TALoggerCbFunc func );
    static TALoggerCbFunc loggerCallback ;

In the MFC code :

void myFunc (){

anInstance->regLoggerCb( myFunc )

I get this error message

WorkerThread.obj : error LNK2001: unresolved external symbol "public:
void __thiscall taLoggable::regLoggerCb(void (__cdecl*)(void))"

Debug/TestBed.exe : fatal error LNK1120: 1 unresolved externals

Any ideas ?

devrim.

Greets,

    For your typedef, add the 'void' between the final parenthesis as well
as the function definition/declaration for the callback.

Regards,

Joe