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);
}
else if(ret == ID