Pointer to function as arguments in visual c++

[dodoxor]

hi..i've a problem with a prject in Visual c++...i've this class: class A{ public: A(); void jpeg_received(jpg_t* jpg); void exit_capturing(int code); int rec(void); public: camaddr_t camaddr; CAPID capid; }; A::A() {...} void A::jpeg_received(jpg_t* jpg) {....//code to save a file jpg...} void A::exit_capturing(int code) {....//code to print a result for code's value...} int A::rec(void) {....... capid=ccap_start_capturing(&camaddr,jpeg_received,exit_capturing); ..........} I've to pass to ccap_start_capturing (function defined in a 'c file' of another project PUBLIC CAPID ccap_start_capturing(camaddr_t* camaddr, void(*jpeg_received)(jpg_t* jpg), void(*exit_capturing)(int code) ) two function "jpeg_received" and "exit_capturing" but i've this compile error: .\A.cpp(114) : error C3867: 'A::jpeg_received': function call missing argument list; use '&A::jpeg_received' to create a pointer to member .\A.cpp(114) : error C3867: 'A::exit_capturing': function call missing argument list; use '&A::exit_capturing' to create a pointer to member Can anyone help me? Thanks, regards.

[Mark Salsbery]

This should be posted on the Visual C++/MFC[^] board. The error messages state what needs to be done to get the address of a member function. Note that this still won't compile because the member functions are not declared static, which means there's an implicit "this" pointer passed to the methods. One way to get it to compile:

class A
{
public:
A();
static void jpeg_received(jpg_t* jpg);
static void exit_capturing(int code);
int rec(void);
public:
camaddr_t camaddr;
CAPID capid;
};
...
CAPID capid = ccap_start_capturing(..., &A::jpeg_received, &A::exit_capturing);

Note that static methods cannot access non-static member variables/methods. Mark

"Posting a VB.NET question in the C++ forum will end in tears." Chris Maunder

[sthotakura]

The following article may help you. http://msdn2.microsoft.com/en-us/library/b0x1aatf(VS.80).aspx[^]

Cheers, Suresh