Question

I want to use a DLL in my program which has a function

void Set_Callback(Function Pointer)

The example code inserts a typedef which obiously doesn’t work with my VS C++ 2010

typedef void (SET_CALLBACK)(void far pascal (*lpfnPtr)(int));

For this line I get an syntax error ‘*’ and ‘function returns function’ error.

thanks for your help in advance

Answer 1

Its easier to understand and read if you break it into two typedefs:

typedef void (__stdcall * Function)(int);
typedef void (* SETCALLBACK)(Function pf);

in the first typedef, pascal becomes __stdcall (as pascal was for older 16bit systems), and far can be dropped as it is superfluous in 32/64-bit architectures