#if defined(UNICODE) && !defined(_UNICODE)
    #define _UNICODE
#elif defined(_UNICODE) && !defined(UNICODE)
    #define UNICODE
#endif

#include <tchar.h>
#include <windows.h>
#include <iostream>

using namespace std;

#pragma pack(1)

struct MqlTick
{
   UINT64   time;          // Time of the last prices update
   double   bid;           // Current Bid price
   double   ask;           // Current Ask price
   double   last;          // Price of the last deal (Last)
   UINT64   volume;        // Volume for the current Last price
   UINT64   time_msc;      // Time of a price last update in milliseconds
   UINT     flags;         // Tick flags
   double   volume_real;   // Volume for the current Last price with greater accuracy
};

struct Info
{
	MqlTick tick;
};

struct Dom
{
	UINT number;
};

struct MqlBookInfo
{
    UINT   type;            // Order type from ENUM_BOOK_TYPE enumeration
    double           price;           // Price
    UINT64           volume;          // Volume
    double           volume_real;     // Volume with greater accuracy
};
#pragma pack()

#define BUFSIZE                 1024*1024
#define WM_TICK                 0x8000
#define PM_DOM                  0x80FF

HANDLE hmapfile = 0;
PVOID file = 0;
Info info;
#define window_name     "MyApp"
#define shared_mem_name "smo"

int OnInit()
{
	hmapfile = (HANDLE) CreateFileMappingA(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, BUFSIZE, shared_mem_name);
	if(hmapfile != NULL)
	{
		if((file = MapViewOfFile(hmapfile, FILE_MAP_ALL_ACCESS, 0, 0, BUFSIZE)) != 0) return 0;
        CloseHandle(hmapfile);
	}
	return -1;
}

void OnDeinit()
{
	UnmapViewOfFile(file);
	CloseHandle(hmapfile);
}

/*  Declare Windows procedure  */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);

/*  Make the class name into a global variable  */
TCHAR szClassName[ ] = _T("MyApp");

int WINAPI WinMain (HINSTANCE hThisInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR lpszArgument,
                     int nCmdShow)
{
    HWND hwnd;               /* This is the handle for our window */
    MSG messages;            /* Here messages to the application are saved */
    WNDCLASSEX wincl;        /* Data structure for the windowclass */

    /* The Window structure */
    wincl.hInstance = hThisInstance;
    wincl.lpszClassName = szClassName;
    wincl.lpfnWndProc = WindowProcedure;      /* This function is called by windows */
    wincl.style = CS_DBLCLKS;                 /* Catch double-clicks */
    wincl.cbSize = sizeof (WNDCLASSEX);

    /* Use default icon and mouse-pointer */
    wincl.hIcon = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
    wincl.hCursor = LoadCursor (NULL, IDC_ARROW);
    wincl.lpszMenuName = NULL;                 /* No menu */
    wincl.cbClsExtra = 0;                      /* No extra bytes after the window class */
    wincl.cbWndExtra = 0;                      /* structure or the window instance */
    /* Use Windows's default colour as the background of the window */
    wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;

    /* Register the window class, and if it fails quit the program */
    if (!RegisterClassEx (&wincl))
        return 0;

    /* The class is registered, let's create the program*/
    hwnd = CreateWindowEx (
           0,                   /* Extended possibilites for variation */
           szClassName,         /* Classname */
           _T("MyApp"),       /* Title Text */
           WS_OVERLAPPEDWINDOW, /* default window */
           CW_USEDEFAULT,       /* Windows decides the position */
           CW_USEDEFAULT,       /* where the window ends up on the screen */
           544,                 /* The programs width */
           375,                 /* and height in pixels */
           HWND_DESKTOP,        /* The window is a child-window to desktop */
           NULL,                /* No menu */
           hThisInstance,       /* Program Instance handler */
           NULL                 /* No Window Creation data */
           );

    /* Make the window visible on the screen */
    ShowWindow (hwnd, nCmdShow);

    /* Run the message loop. It will run until GetMessage() returns 0 */
    while (GetMessage (&messages, NULL, 0, 0))
    {
        /* Translate virtual-key messages into character messages */
        TranslateMessage(&messages);
        /* Send message to WindowProcedure */
        DispatchMessage(&messages);
    }

    /* The program return-value is 0 - The value that PostQuitMessage() gave */
    return messages.wParam;
}


/*  This function is called by the Windows function DispatchMessage()  */

LRESULT CALLBACK WindowProcedure (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)                  /* handle the messages */
    {
        case WM_CREATE:
            if(OnInit() != 0) PostQuitMessage(0);
            break;

        case WM_TICK:
            cout << "bid: " << ((Info*) file)->tick.bid << endl;
            break;

        case PM_DOM:
            {
                int n = ((Dom*) (file+1024))->number - 1;
                cout << "dom entries: ";
                for(MqlBookInfo* p = (MqlBookInfo*)(file+1024+4); n >= 0; --n, ++p)
                    cout << p->price << " ";
                cout << endl << endl;
            }
            break;

        case WM_DESTROY:
            OnDeinit();
            PostQuitMessage(0);       /* send a WM_QUIT to the message queue */
            break;
        default:                      /* for messages that we don't deal with */
            return DefWindowProc (hwnd, message, wParam, lParam);
    }

    return 0;
}