#include <windows.h>

#include <tchar.h>

HINSTANCE hInst;

ATOM WindowRegister(WNDPROC lpfnWndProc, char *lpClname, HBRUSH hbrBack)

{

    WNDCLASSEX wnd;

    wnd.cbClsExtra = ;

    wnd.cbSize = sizeof(WNDCLASSEX);

    wnd.cbWndExtra = ;

    wnd.hbrBackground = hbrBack;

    wnd.hCursor = LoadCursor(NULL, IDC_ARROW);

    wnd.hIcon = LoadIcon(NULL, IDI_APPLICATION);

    wnd.hIconSm = LoadIcon(NULL, IDI_APPLICATION);

    wnd.hInstance = hInst;

    wnd.lpfnWndProc = lpfnWndProc;

    wnd.lpszClassName = lpClname;

    wnd.lpszMenuName = NULL;

    wnd.style = CS_HREDRAW | CS_VREDRAW;

    return RegisterClassEx(&wnd);

}

LRESULT CALLBACK ClientProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)

{

    HWND hWndEdit;

    RECT rect;

    switch (uMsg)

    {

    case WM_CREATE:

        GetClientRect(hWnd, &rect);

        hWndEdit = CreateWindowEx(WS_EX_CLIENTEDGE, TEXT("Edit"), NULL,

            WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL | ES_AUTOVSCROLL | ES_AUTOHSCROLL | ES_MULTILINE,

            , , rect.right, rect.bottom, hWnd, NULL, hInst, NULL);

        return ;

    case WM_SIZE:

        hWndEdit = GetWindow(hWnd, GW_CHILD);

        GetClientRect(hWnd, &rect);

        SetWindowPos(hWndEdit, NULL, , , rect.right, rect.bottom, SWP_NOMOVE | SWP_NOZORDER);

        break;

    case WM_MDIACTIVATE:

        return ;

    }

    return DefMDIChildProc(hWnd, uMsg, wParam, lParam);

}

LRESULT CALLBACK WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)

{

    static HWND hClient;

    HMENU hMenu;

    MDICREATESTRUCT mdic;

    CLIENTCREATESTRUCT ccs;

    HWND hChild;

    switch (uMsg)

    {

    case WM_CREATE:

        WindowRegister(ClientProc, _T("Client"), (HBRUSH)GetStockObject(WHITE_BRUSH));

        hMenu = CreateMenu();

        AppendMenu(hMenu, MF_STRING, , _T("New(&N)"));

        SetMenu(hWnd, hMenu);

        ccs.hWindowMenu = NULL;

        ccs.idFirstChild = ;

        hClient = CreateWindow(_T("MDICLIENT"), NULL,

            WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN,

            , , , , hWnd, NULL, hInst, &ccs);

        return ;

    case WM_DESTROY: PostQuitMessage(); return ;

    case WM_COMMAND:

        switch (LOWORD(wParam))

        {

        case :

            mdic.szClass = _T("Client");

            mdic.szTitle = _T("Document");

            mdic.hOwner = hInst;

            mdic.x = CW_USEDEFAULT;

            mdic.y = CW_USEDEFAULT;

            mdic.cx = CW_USEDEFAULT;

            mdic.cy = CW_USEDEFAULT;

            mdic.style = ;

            mdic.lParam = ;

            hChild = (HWND)SendMessage(hClient, WM_MDICREATE, , (LPARAM)&mdic);

            break;

        default:

            hChild = (HWND)SendMessage(hClient, WM_MDIGETACTIVE, , );

            if(IsWindow(hChild))

                SendMessage(hChild, WM_COMMAND, wParam, lParam);

            break;

        }

        break;

    }

    return DefFrameProc(hWnd, hClient, uMsg, wParam, lParam);

}

INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, INT nShowCmd)

{

    MSG msg;

    HWND hClient;

    HWND hWnd;

    WindowRegister(WndProc, _T("Sample"), (HBRUSH)(COLOR_APPWORKSPACE + ));

    hInst = hInstance;

    hWnd = CreateWindow(_T("Sample"), _T("Sample"),WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,, , , , NULL, NULL, hInstance, NULL);

    if (!hWnd)

        return FALSE;

    hClient=GetWindow(hWnd, GW_CHILD);

    ShowWindow(hWnd, nShowCmd);

    UpdateWindow(hWnd);

    while (GetMessage(&msg, NULL, , ))

    {

        if (!TranslateMDISysAccel(hClient, &msg))

        {

            TranslateMessage(&msg);

            DispatchMessage(&msg);

        }

    }

    return msg.wParam;

}