C / C++ / MFC

i_kant_spel wrote:

I'm trying to write a program that will use ETW...

doug25 wrote:

I can create the popup menu with TrackPopupMenu but I only know how to change the background colour of the items.

item_selected = TrackPopupMenu(menu, flags, x, y, 0, hwnd, NULL);<br />
<br />
MessageBox(NULL, "Got to the end of showPopupMenu !", "Success!", MB_ICONEXCLAMATION | MB_OK);<br />
<br />
return item_selected;

item_selected = TrackPopupMenuEx(menu, flags, x, y, hInvisibleWindow, NULL);<br />
<br />
    // Start the message loop. <br />
<br />
	int result = 0;<br />
<br />
	MSG msg;<br />
 <br />
    while( (result = GetMessage( &msg, NULL, 0, 0 )) != 0)<br />
    { <br />
        if (result == -1)<br />
        {<br />
            // handle the error and possibly exit<br />
        }<br />
        else<br />
        {<br />
            TranslateMessage(&msg); <br />
            DispatchMessage(&msg); <br />
        }<br />
    }<br />
<br />
MessageBox(NULL, "Got to the end of showPopupMenu !", "Success!", MB_ICONEXCLAMATION | MB_OK);

case WM_UNINITMENUPOPUP:<br />
    DestroyWindow(hInvisibleWindow);<br />
break;<br />
    case WM_DESTROY:<br />
        PostQuitMessage(0);<br />
    break;<br />
    default:<br />
        return DefWindowProc(hwnd, msg, wParam, lParam);

template<typename T> class Vector
{
public:
  class iterator
  {
    public:
    bool operator==(iterator it2)
    {
      // implementation here...
    }
  };
};

template<typename T> 
bool operator==(T it1, T it2)
{
     return true;
}

wanchao507 wrote:

according to C++Primer,we'd better declare operator== as a friend function)

/*
Visual Studio 2008
Vector is a template class,and there is a class iterator in Vector;
I declare the function operator== as the iterator's friend function because I want to
access to its private members.(according to C++Primer,we'd better 
declare operator== as a friend function)
then how to do that? how to write the friend function operator== ?
the compiler can not deduce T,help me please!

I am a Chinese student,my English is not very good,I hope
you can understand me! ^-^
*/
#include<iostream>
using namespace std;
template<typename T> bool operator==(T it1,T it2);
template<typename T> class Vector
{
public:
	class iterator
	{
		friend bool operator==<Vector<T>::iterator>(typename Vector<T>::iterator it1,typename Vector<T>::iterator it2);
	public:
		iterator(int a=0):value(a){}
	private:
		int value;

	};
};
template<typename T> bool operator==(T it1,T it2)
{
	if(it1.value!=it2.value)// now we can access its private menbers
	{
		return false;
	}
	return true;
}
int main()
{
	Vector<int>::iterator it1(0),it2(1);
	cout<<(it1==it2)<<endl;// output false
	return 0;
}

kumar sanghvi wrote:

May i know how the static variable is stored in memory...

kumar sanghvi wrote:

and is it right if i declare static variable inside class but not outside the clas...