C / C++ / MFC

singersinger wrote:

this is seems to be a problem and the compiler retrun an error say
'a' uses undefined class 'A' although i am declaring the header of A

class B;
 
class A
{ B* b;};
 
class B
{A a;};

<br />
class A;<br />
<br />
#inlcude "B.h"<br />
<br />
class A<br />
{ B* b;};<br />
<br />

wheelerbarry wrote:

class A;

#inlcude "B.h"

class A
{ B* b;};

 // B.h
#ifndef _B_H_
#define _B_H_
class B
{
  // ...
};
#endif

 // A.h
#ifndef _A_H_
#define _A_H_

#ifndef _B_H_
  #include "b.h"
#endif

class A
{
  B* b;
};
#endif

// A.h
#pragma once
 
class B;
 
#include "B.h"
 
class A
{
    B* b;
};
 
// B.h
#pragma once
 
#include "A.h"
 
class B
{
    A a;
};
 
// main.cpp
#include "B.h"
 
void main( void )
{
    B bb;
}

waldermort wrote:

There is an unsightly black flicker around the edges of the bitmap, they are only there when the window is being moved, almost as if the image is being drawn to the wrong place.

waldermort wrote:

As soon as the animation is complete I remove the extended style and the problem goes away.

Christian Graus wrote:

isual C++ 2005 Express Edition is free, doesn't that do 64 bit ?

Christian Graus wrote:

It's interesting to me that people looking for stuff for free always feel their request is 'urgent'

hiral_shah wrote:

Thank u 4 ur in4mation but i do not hv Vista yet so i m not abl 2 work vth it.

Vivek Rajan wrote:

Can you stomach this stuff ?

As of how to accomplish that have you ever tried Google?

Failing that try .