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Help with this error ! Please !
The code below is simplified, because I'm trying to solve this error.

....MyClass.cpp In member function `void MyClass::Initialize()':
....MyClass.cpp aggregate value used where an integer was expected
....Makefile.win [Build Error] [MyClass.o] Error 1

The code:

/* MyClass.h *****************/
class MyClass
{
public:
void Initialize();
void MyFunction();
};

/* MyClass.cpp **************/
#include "MyClass.h"
void MyClass::Initialize()
{
long address = (long)MyFunction; //this line rises the error
}

void MyClass::MyFunction()
{
//empty
}

Neviton wrote:
> Help with this error ! Please !
> The code below is simplified, because I'm trying to solve this error.
>
> ...MyClass.cpp In member function `void MyClass::Initialize()':
> ...MyClass.cpp aggregate value used where an integer was expected
> ...Makefile.win [Build Error] [MyClass.o] Error 1
>
> The code:
>
> /* MyClass.h *****************/
> class MyClass
> {
> public:
> void Initialize();
> void MyFunction();
> };
>
> /* MyClass.cpp **************/
> #include "MyClass.h"
> void MyClass::Initialize()
> {
> long address = (long)MyFunction; //this line rises the error

MyFunction is member function, not function

void MyClass::*pmf = &MyClass::MyFunction;

Moreover, casting a function pointer to other type is meaningless.


> }
>
> void MyClass::MyFunction()
> {
> //empty
> }
>


--
Thanks
Barry

Barry wrote:
> Neviton wrote:
>> Help with this error ! Please !
>> The code below is simplified, because I'm trying to solve this error.
>>
>> ...MyClass.cpp In member function `void MyClass::Initialize()':
>> ...MyClass.cpp aggregate value used where an integer was expected
>> ...Makefile.win [Build Error] [MyClass.o] Error 1
>>
>> The code:
>>
>> /* MyClass.h *****************/
>> class MyClass
>> {
>> public:
>> void Initialize();
>> void MyFunction();
>> };
>>
>> /* MyClass.cpp **************/
>> #include "MyClass.h"
>> void MyClass::Initialize()
>> {
>> long address = (long)MyFunction; //this line rises the error
>
> MyFunction is member function, not function
>
> void MyClass::*pmf = &MyClass::MyFunction;

Sorry, what a impulsive man I am! deal too much with pointer to member
recently

void (MyClass::*pmf)() = &MyClass::MyFunction;

>
> Moreover, casting a function pointer to other type is meaningless.
>
>
>> }
>>
>> void MyClass::MyFunction()
>> {
>> //empty
>> }
>>
>
>


--
Thanks
Barry

Ok impulsive man.
Thank you Barry.
I will try this and give you a feedback.

How can I get the address of the function and save in a long variable.

My deal is use this WIN32 function that must receive the address of
function.

I know, I know
This is not a WIN32 Group but
I think my problem is with C++ instead WIN32.

I am wasting time for a few days and I can´t find a solution for my
problem.

If you can help me I will really appreciate

Thanks again

When I try this in the main application class everything works fine.
The "aggregate value used where an integer was expected" error just
happen when I put the code in a Class.

Neviton wrote:
> How can I get the address of the function and save in a long variable.
>
> My deal is use this WIN32 function that must receive the address of
> function.
>
> I know, I know
> This is not a WIN32 Group but
> I think my problem is with C++ instead WIN32.
>
> I am wasting time for a few days and I can´t find a solution for my
> problem.
>
> If you can help me I will really appreciate
>

If you have various kind of function which have different parameter
list, then you have to borrow Boost.Function, as my experience, I use
boost::function0<void> as wrapper, then bind any type of functor, free
function and member function into this wrapper.

If the parameter list is fixed, then you can write your own wrapper,
refer to 'mem_fun', 'bind2nd' ... in STL.


--
Thanks
Barry

Neviton wrote:
> How can I get the address of the function and save in a long variable.

If that's a question, the answer is to use 'reinterpret_cast', but do
not rely on the pointer to fit into a 'long'. You may need to have
something different there, like 'uint64_t'.

> My deal is use this WIN32 function that must receive the address of
> function.

<shrug> OK. Where does the 'long' come in?

> I know, I know
> This is not a WIN32 Group but
> I think my problem is with C++ instead WIN32.

Maybe. See FAQ 5.8.

> I am wasting time for a few days and I can´t find a solution for my
> problem.

Neither can we unless we actually see some code.

V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask

Neviton wrote:
> When I try this in the main application class everything works fine.
> The "aggregate value used where an integer was expected" error just
> happen when I put the code in a Class.
>
Post your code to speak the error

--
Thanks
Barry

Neviton wrote:
> How can I get the address of the function and save in a long variable.
>
> My deal is use this WIN32 function that must receive the address of
> function.

I don't even want to know why windows would want a function pointer as
a long (although having seen the Windows API I'm not even surprised
about anything anymore), but if if expects a pointer to a *function* and
you are giving a pointer to a *method* it won't work (at least if that
windows function tries to call your function through the pointer). A
method is not a regular function.