Comments by Shao Voon Wong (Top 197 by date)

bErrGHJ = WriteFile(hDFile, LpAll, Bytes_that_need_To_Write - bytes_which_have_written_already, &bytes_which_have_written_already, NULL);

typedef std::function < void(const char*,int) > ConsumerCallback;

class first
{
void ConsumeMessage(ConsumerCallback callback);
};

void ConsumeMessage(ConsumerCallback callback)
{ 

.... used ConsumerCallback 

}

class second 
{
boost::thread *start;
bool isThreadInterrupt;
void WaitForConsumer(const char* message, const int& length);
void Test();
void start();
void stop();

};
second()
{ 
isThreadInterrupt = true;
}

void WaitForConsumer(const char* message, const int& length)
{
  start =  new boost::thread(&second::Start, this);
  start->join();
  printf("isThreadInterrupt: %d\n", isThreadInterrupt);
}

void start()
{
  if(condition)
   isThreadInterrupt = true;
  else
   isThreadInterrupt = false;  
}

void stop()
{ 
    // Thread already ended when joined in WaitForConsumer()
	// so cannot call interrupt() and join()
    // start->interrupt();
    // start->join();
}


void Test()
{

first obj;
// inside WaitForConsumer will spawn a thread.
obj.ConsumeMessage(std::bind(&second::WaitForConsumer, this, 
    std::placeholders::_1, std::placeholders::_2));
}

std::thread *startThread= new std::thread([&](){

while(isThreadInterrupt) // set it to false to stop the while loop
{
    obj.ConsumeMessage(std::bind(&second::WaitForConsumer, this, 
        std::placeholders::_1, std::placeholders::_2));
}
});

void printError( const TCHAR* msg )

BEGIN_MESSAGE_MAP(CChildView, CView)
	ON_WM_SIZE() // add this line to your message map
END_MESSAGE_MAP()

void CChildView::OnSize(UINT nType, int cx, int cy)
{
    CView::OnSize(nType, cx, cy);
    Invalidate(TRUE); // add this line to redraw your CChildView
}