MDI - Win32

복수 개의 문서 타입(차일드)을 지원하려면 메뉴도 그 수만큼 있어야 한다.

DefMDIChildProc()

WM_MDIACTIVATE

MDICLIENT

WS_CLIPCHILDREN

WM_MDISETMENU

WM_MDICREATE

MDICREATESTRUCT

WM_MDITILE

MDITILE_HORIZONTAL

WM_MDICASCADE

WM_MDIICONARRANGE

CreateMDIWindow()
CreateWindowEx()

WS_EX_MDICHILD

DefFrameProc()

TranslateMDISysAccel()

IDR_MENU1 MENU DISCARDABLE
BEGIN
    POPUP "File"
    BEGIN
        MENUITEM "New Draw",                    ID_FILE_NEWDRAW
        MENUITEM "New Edit",                    ID_FILE_NEWEDIT
    END
END

IDR_MENU2 MENU DISCARDABLE
BEGIN
    POPUP "File"
    BEGIN
        MENUITEM "New Draw",                    ID_FILE_NEWDRAW
        MENUITEM "New Edit",                    ID_FILE_NEWEDIT
    END
    POPUP "Window"
    BEGIN
        MENUITEM "Tile",                        40005
        MENUITEM "Cascade",                     40006
        MENUITEM "Arrange Icon",                ID_WIN_ARRANGE
    END
    POPUP "Draw"
    BEGIN
        MENUITEM "Line",                        ID_DRAW_LINE
        MENUITEM "Ellipse",                     ID_DRAW_ELLIPSE
        MENUITEM "Rectange",                    ID_DRAW_RECTANGLE
        MENUITEM "Chose Color",                 ID_DRAW_CHOOSECOLOR
    END
END

IDR_MENU3 MENU DISCARDABLE
BEGIN
    POPUP "File"
    BEGIN
        MENUITEM "New Draw",                    ID_FILE_NEWDRAW
        MENUITEM "New Edit",                    ID_FILE_NEWEDIT
    END
    POPUP "Window"
    BEGIN
        MENUITEM "Tile",                        ID_WIN_TILE
        MENUITEM "Cascade",                     ID_WIN_CASCADE
        MENUITEM "Arrange Icon",                40007
    END
    POPUP "Edit"
    BEGIN
        MENUITEM "Cut",                         ID_EDIT_CUT
        MENUITEM "Copy",                        ID_EDIT_COPY
        MENUITEM "Paste",                       ID_EDIT_PASTE
    END
END

LRESULT CALLBACK MDIEditProc(HWND hWnd,UINT iMessage,WPARAM wParam,LPARAM lParam)
{
    switch (iMessage) {
    case WM_CREATE:
        ... SetWindowLong(hWnd, 0, ...) ...
        return 0;

    case WM_MDIACTIVATE:
        if (lParam==(LPARAM)hWnd)
            SendMessage(g_hMDIClient,WM_MDISETMENU,
            (WPARAM)hMenu2,(LPARAM)hMenu2W);
        else
            SendMessage(g_hMDIClient,WM_MDISETMENU,
            (WPARAM)hMenu1,(LPARAM)hMenu1W);
        DrawMenuBar(g_hFrameWnd);
        return 0;
    ... GetWindowLong(hWnd, 0)) ...
    }

    return(DefMDIChildProc(hWnd,iMessage,wParam,lParam));
}

LRESULT CALLBACK MDIDrawProc(HWND hWnd,UINT iMessage,WPARAM wParam,LPARAM lParam)
{
    switch (iMessage) {
    case WM_CREATE:
        ... SetWindowLong(hWnd, 0, ...) ...
        return 0;

    case WM_MDIACTIVATE:
        if (lParam==(LPARAM)hWnd)
            SendMessage(g_hMDIClient,WM_MDISETMENU,
            (WPARAM)hMenu2,(LPARAM)hMenu2W);
        else
            SendMessage(g_hMDIClient,WM_MDISETMENU,
            (WPARAM)hMenu1,(LPARAM)hMenu1W);
        DrawMenuBar(g_hFrameWnd);
        return 0;
    ... GetWindowLong(hWnd, 0)) ...
    }

    return(DefMDIChildProc(hWnd,iMessage,wParam,lParam));
}

#define IDM_WINDOWCHILD                 41000

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
    case WM_CREATE: {
        CLIENTCREATESTRUCT ccs;

        // MDI Client 윈도우 만듬
        ccs.hWindowMenu = GetSubMenu(GetMenu(hWnd), 1);
        ccs.idFirstChild = IDM_WINDOWCHILD;
        g_hMDIClient = CreateWindow("MDICLIENT", NULL, WS_CHILD | WS_VSCROLL |
            WS_HSCROLL | WS_CLIPCHILDREN | WS_BORDER,
            0,0,0,0,hWnd,(HMENU)NULL, g_hInst, (LPSTR)&ccs);
        ShowWindow(g_hMDIClient, SW_SHOW);
    }
        return 0;

    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;

    case WM_COMMAND: {
        int wmId, wmEvent;

        wmId    = LOWORD(wParam);
        wmEvent = HIWORD(wParam);
        // Parse the menu selections:
        switch (wmId)
        {
        case IDM_EXIT:
           DestroyWindow(hWnd);
            return 0;
// {
        case ID_FILE_NEWEDIT: {
            MDICREATESTRUCT mcs;

            mcs.szClass=TEXT("MDIExamEdit");
            mcs.szTitle=TEXT("Edit");
            mcs.hOwner=g_hInst;
            mcs.x=mcs.y=CW_USEDEFAULT;
            mcs.cx=mcs.cy=CW_USEDEFAULT;
            mcs.style=MDIS_ALLCHILDSTYLES;
            SendMessage(g_hMDIClient, WM_MDICREATE, 0,
                (LPARAM)(LPMDICREATESTRUCT)&mcs);
        }
            return 0;

        case ID_FILE_NEWDRAW: {
            MDICREATESTRUCT mcs;

            mcs.szClass=TEXT("MDIExamDraw");
            mcs.szTitle=TEXT("Draw");
            mcs.hOwner=g_hInst;
            mcs.x=mcs.y=CW_USEDEFAULT;
            mcs.cx=mcs.cy=CW_USEDEFAULT;
            mcs.style=MDIS_ALLCHILDSTYLES;
            SendMessage(g_hMDIClient, WM_MDICREATE, 0,
                (LPARAM)(LPMDICREATESTRUCT)&mcs);
        }
            return 0;

        case ID_WIN_TILE:
            SendMessage(g_hMDIClient, WM_MDITILE,
                (WPARAM)MDITILE_HORIZONTAL, 0);
            return 0;

        // 계단식 정렬
        case ID_WIN_CASCADE:
            SendMessage(g_hMDIClient, WM_MDICASCADE,
                (WPARAM)MDITILE_SKIPDISABLED, 0);
            return 0;

        // 아이콘 정렬
        case ID_WIN_ARRANGE:
            SendMessage(g_hMDIClient, WM_MDIICONARRANGE, 0, 0);
            return 0;
// }
        case IDM_ABOUT:
           DialogBox(g_hInst, (LPCTSTR)IDD_ABOUTBOX, hWnd, (DLGPROC)About);
            return 0;
        }
    }

        break;
   }

    return(DefFrameProc(hWnd,g_hMDIClient,message,wParam,lParam));
}

ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEX wcex;

    wcex.cbSize = sizeof(WNDCLASSEX);

    wcex.style            = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc    = (WNDPROC)WndProc;
    wcex.cbClsExtra        = 0;
    wcex.cbWndExtra        = 0;
    wcex.hInstance        = hInstance;
    wcex.hIcon            = LoadIcon(hInstance, (LPCTSTR)IDI_MDIEXAM);
    wcex.hCursor        = LoadCursor(NULL, IDC_ARROW);
    wcex.hbrBackground    = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName    = MAKEINTRESOURCE(IDR_MENU1);
    wcex.lpszClassName    = szWindowClass;
    wcex.hIconSm        = LoadIcon(wcex.hInstance, (LPCTSTR)IDI_SMALL);
// {
    ATOM ret;
    if ((ret = RegisterClassEx(&wcex)) == 0)
        return ret;

    wcex.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
    wcex.lpszClassName=TEXT("MDIExamEdit");
    wcex.lpfnWndProc=MDIEditProc;
    wcex.hIcon=LoadIcon(NULL,IDI_ASTERISK);
    wcex.lpszMenuName=NULL;
    wcex.hIconSm        = LoadIcon(NULL,IDI_ASTERISK);
    wcex.cbWndExtra=sizeof(DWORD_PTR);
    if ((ret = RegisterClassEx(&wcex)) == 0)
        return ret;

    wcex.lpszClassName=TEXT("MDIExamDraw");
    wcex.lpfnWndProc=MDIDrawProc;
    wcex.hIcon=LoadIcon(NULL,IDI_ERROR);
    wcex.lpszMenuName=NULL;
    wcex.hIconSm        = LoadIcon(NULL,IDI_ERROR);
    wcex.cbWndExtra=sizeof(DWORD);
    wcex.style=CS_DBLCLKS;
// }
    return RegisterClassEx(&wcex);
}

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
     // TODO: Place code here.
    ...
    hAccelTable = LoadAccelerators(hInstance, (LPCTSTR)IDC_MDIEXAM);

    // Main message loop:
    while (GetMessage(&msg, NULL, 0, 0))
    {
        if (!TranslateMDISysAccel(g_hMDIClient, &msg) &&
            !TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }

    return msg.wParam;
}