C / C++ / MFC

Richard MacCutchan wrote:

Looking at your code (and I am far from being an expert on MFC) the only time that function will be called is via the TEXT_2 command. How does this command get invoked?

johny10151981 wrote:

ON_COMMAND macro create a set of code that ensure the call of the function.

TEXT_2

johny10151981 wrote:

Since when

TEXT_2

is a command?

ON_COMMAND(ID_FILE_NEW, OnFileNew)

#define TEXT2  1234

johny10151981 wrote:

And I am not using any other class other than CWnd.

johny10151981 wrote:

I have started with raw MFC, the reason is to make myself more clear about the behavior of MFC

switch (iMsg)
{
case WM_COMMAND:
   switch (LOWORD(wParam))  // Might be HIWORD, I'm working from memory
   {
      case ID_MY_COMMAND:

Mark Salsbery wrote:

Is there some child control that you're expecting to send WM_COMMAND notifications to your CInsertEdit?

Mark Salsbery wrote:

Fixed speling

class MainWindow

class A; // <- here make B know that A exists
class B
{
private:
	A *a;
public:
	B(A *ta)
	{
		a=ta;
	}
};
class A
{
	int a;
	B *b;
public:
	A()
	{
		b=new B(this);
	}
 
};

class B;
class A
{
	int a;
	B *b;
public:
	A(); 
};

#include "A.h"
#inlcude "B.h"
A::A()
{
 {
  b=new B(this);
 }
}

class A;
class B
{
private:
	A *a;
public:
	B(A *ta)
};

#include "A.h"
#include "B.h"
B:B()
{
 a=ta;
}

// file IDocumentStateCallback.h
class IDocumentStateCallback { // prefix 'I' indicates this is supposed to be an abstract interface
public:
   virtual void OnDocumentChanged()=0;
   // add other callback functions for different types of state changes if you like)
}

// file MainWnd.h
class MainWnd : public CWnd, IDocumentStateCallback {
private:
   void OnDocumentChanged(); // for the interface; doesn't need to be public
// ...
};

// file MainWnd.cpp
void MainWnd::OnDocumentChanged() {
   ReEditTreeControl();
}

// file InsertEdit.h
class CInsertEdit: public CWnd {
   class IDocumentStateCallback* parent;
   void OnSave();
// ...
};

// file InsertEdit.cpp
#include "IDocumentStateCallback.h"
#include "InsertEdit.h"

void CInsertEdit::Create(CWnd* p, /* ... */) {
   parent = dynamic_cast<IDocumentStateCallback*>(p);
// ...
}
void CInsertEdit::OnSave() {
   p->OnDocumentChanged();
}