#include <windows.h>

long int OldWndProc;

LRESULT CALLBACK NewWndProc(HWND Hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
     switch(Message)
     {
           case WM_COMMAND:
               switch(wParam)
               {
                    case 2000:
                        MessageBox(HWND_DESKTOP, "You pressed our new menu button!", "Yay!", MB_OK);
                        break;
               }
               break;

     }

     return CallWindowProc((WNDPROC)OldWndProc, Hwnd, Message, wParam, lParam);
}

DWORD WINAPI Creation(LPVOID)
{
     HWND hWnd = FindWindow(NULL, "Untitled - Notepad");
     HMENU hCurrent = GetMenu(hWnd); //Get the CURRENT menu of the window
     HMENU hNew = CreateMenu(); //Create a new one
     AppendMenu(hCurrent, MF_STRING | MF_POPUP, (unsigned int)hNew, "Tutorial");
     AppendMenu(hNew, MF_STRING, 2000, "Button"); //2000 is the ID of the button
     DrawMenuBar(hWnd); //redraw the Menu!
    // OldWndProc = SetWindowLong(hWnd, GWL_WNDPROC, (long)NewWndProc); //subclass the original window procedure
                                                                                              //With our new one
     //So now all messages sent to the notepad window, are sent to OUR window proc..See above!
    return TRUE;
}

BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
     if(fdwReason == DLL_PROCESS_ATTACH){
  //        CreateThread(0, NULL, (LPTHREAD_START_ROUTINE)&Creation, NULL, NULL, NULL);
		     MessageBox(HWND_DESKTOP, "You pressed our new menu button!", "Yay!", MB_OK);
     }
     return TRUE;
}