VC创建模态对话框

模态窗口的创建由DialogBox()函数。
首先定义几个id：
[cpp]
#define ID_FILE_EXIT 900
#define ID_STUFF_GO 9002
#define ID_HELP_ABOUT 9003
#define IDD_ABOUT     101
对话框的资源文件如下：
[cpp]
/////////////////////////////////////////////////////////////////////////////
//
// Dialog
//

IDD_ABOUT DIALOGEX 0, 0, 316, 183
STYLE DS_MODALFRAME | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "My About Box"
FONT 8, "MS Sans Serif"
BEGIN
    DEFPUSHBUTTON   "&OK",IDOK,174,18,50,14
    PUSHBUTTON      "&Cancel",IDCANCEL,174,35,50,14
    GROUPBOX        "About this program...",IDC_STATIC,7,7,225,52
    CTEXT           "An example program showing how to use Dialog Boxes\r\n\r\nby wql",
                    IDC_STATIC,16,18,144,33
END

/////////////////////////////////////////////////////////////////////////////

开始创建对话框：
[cpp]
BOOL CALLBACK AboutDlgProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
{
    switch(Message)
    {
    case WM_INITDIALOG:
        return TRUE;
    case WM_COMMAND:
        switch(LOWORD(wParam))
        {
        case IDOK:
            EndDialog(hwnd, IDOK);
            break;
        case IDCANCEL:
            EndDialog(hwnd, IDCANCEL);
            break;
        }
        break;
    default:
        return FALSE;
    }
    return TRUE;
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch(msg)
    {
    case WM_CREATE:
        {
            HMENU hMenu, hSubMenu;
            HICON hIcon, hIconSm;
            hMenu = CreateMenu();
            hSubMenu = CreatePopupMenu();
            AppendMenu(hSubMenu, MF_STRING, ID_FILE_EXIT, "E&xit");
            AppendMenu(hMenu, MF_STRING | MF_POPUP, (UINT)hSubMenu, "&File");
            hSubMenu = CreatePopupMenu();
            AppendMenu(hSubMenu, MF_STRING, ID_STUFF_GO, "&Go");
            AppendMenu(hMenu, MF_STRING | MF_POPUP, (UINT)hSubMenu, "&Stuff");
            hSubMenu = CreatePopupMenu();
            AppendMenu(hSubMenu,MF_STRING , ID_HELP_ABOUT, "&About");
            AppendMenu(hMenu,MF_STRING | MF_POPUP, (UINT)hSubMenu, "&Help");
            SetMenu(hwnd, hMenu);
            hIcon = (HICON)LoadImage(NULL, "icon1.ico", IMAGE_ICON, 32, 32,
                LR_LOADFROMFILE);
            if(hIcon)
                SendMessage(hwnd, WM_SETICON, ICON_BIG, (LPARAM)hIcon);
            else
                MessageBox(hwnd, "Could not load large icon!", "Error", MB_OK |
                MB_ICONERROR);
            hIconSm = (HICON)LoadImage(NULL, "icon1.ico", IMAGE_ICON, 16, 16,
                LR_LOADFROMFILE);
            if(hIconSm)
                SendMessage(hwnd, WM_SETICON, ICON_SMALL, (LPARAM)hIconSm);
            else
                MessageBox(hwnd, "Could not load small icon!", "Error", MB_OK |
                MB_ICONERROR);
        }
        break;
    case WM_COMMAND:
        switch(LOWORD(wParam))
        {
        case ID_HELP_ABOUT:
            {
                int ret = DialogBox(GetModuleHandle(NULL),
                    MAKEINTRESOURCE(IDD_ABOUT), hwnd, AboutDlgProc); //创建模态窗口
                if(ret == IDOK){
                    MessageBox(hwnd, "Dialog exited with IDOK.", "Notice",
                        MB_OK | MB_ICONINFORMATION);
        &nbs

补充：软件开发 , Vc ,