C / C++ / MFC

monsieur_jj wrote:

Isn't it as simple as just using it?

class CPrefDlg
{
public:
	TCHAR * EventTypeString(WORD EventType);
};


// often this is in the .cpp file, while the above is in a .h file
TCHAR * CPrefDlg::EventTypeString(WORD EventType)
{
	return 0;
}

class CPrefDlg
{
public:
	TCHAR * EventTypeString(WORD EventType)
	{
		return 0;
	}
};

Mark Salsbery
Microsoft MVP - Visual C++

struct s {
  // unsigned* p;
  virtual void msg() { cout<<"c::msg"<<endl; }
  int n;
  double d;
};

// Disable padding.
#pragma pack(1)

class cc {
public:
  virtual void msg() { cout<<"c::msg"<<endl; }
private:
  int n;
  double d;
};

Chris Meech wrote:

I trying to see if I can code the calls to CallMeFirst and CallMeLast just once and not have to "recode" them for every application.

Mark Salsbery
Microsoft MVP - Visual C++

{
  CallMeFirst();
...
  SomeClass   ObjectA;
...
  ObjectA.DoSomeStuff();
...
  CallMeLast();
}

{
  CallMeFirst();
...
  {
    SomeClass   ObjectA;
...
    ObjectA.DoSomeStuff();
...
  }
  CallMeLast();
}

void CallMeFirst()
{
}

void CallMeLast()
{
}

class CommonBaseClass
{
	static int RefCount;

protected:
	CommonBaseClass()
	{
		if (0 == RefCount)
			CallMeFirst();
		RefCount++;
	}

	~CommonBaseClass()
	{
		RefCount--;
		if (0 == RefCount)
			CallMeLast();
	}
};
int CommonBaseClass::RefCount = 0;

class SomeClass : public CommonBaseClass
{
public:
	SomeClass()  {}
	~SomeClass()  {}
};

Mark Salsbery
Microsoft MVP - Visual C++