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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| No
| Import Library
| -
| Header File
| winuser.h
| Unicode
| WinNT
| Platform Notes
| No
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MSGBOXPARAMS
The
MSGBOXPARAMS structure contains information used to display a message box. The
MessageBoxIndirect function uses this structure.
typedef struct {
UINT cbSize;
HWND hwndOwner;
HINSTANCE hInstance;
LPCSTR lpszText;
LPCSTR lpszCaption;
DWORD dwStyle;
LPCSTR lpszIcon;
DWORD dwContextHelpId;
MSGBOXCALLBACK lpfnMsgBoxCallback;
DWORD dwLanguageId;
} MSGBOXPARAMS, *PMSGBOXPARAMS, FAR *LPMSGBOXPARAMS;
Members
cbSize
Specifies the structure size, in bytes.
hwndOwner
Identifies the owner window. This member can be NULL.
hInstance
Identifies the instance containing the icon resource identified by the
lpszIcon member, and the string resource identified by the
lpszText or
lpszCaption member.
lpszText
Points to a null-terminated string, or the identifier of a string resource,
that contains the message to be displayed.
lpszCaption
Points to a null-terminated string, or the identifier of a string resource,
that contains the message box title. If this member is NULL, the default title
Error is used.
dwStyle
Specifies a set of bit flags that determine the contents and behavior of the
dialog box. This member can be a combination of flags described for the
uType parameter of the
MessageBoxEx function.
In addition, you can specify the MB_USERICON flag if you want the message box
to display the icon specified by the
lpszIcon member.
lpszIcon
Identifies an icon resource. This parameter can be either a null-terminated
string or an integer resource identifier passed to the
MAKEINTRESOURCE macro.
To load one of the Windows predefined icons, set the
hInstance member to NULL and set
lpszIcon to one of the values listed with the
LoadIcon function.
This member is ignored if the
dwStyle member does not specify the MB_USERICON flag.
dwContextHelpId
Identifies a Help context. If a Help event occurs, this value is specified in
the
HELPINFO structure that the message box sends to the owner window or callback function.
lpfnMsgBoxCallback
Points to the callback function that processes Help events for the message
box. The callback function has the following form:
VOID CALLBACK MsgBoxCallback(LPHELPINFO lpHelpInfo);
If this member is NULL, the message box sends WM_HELP messages to the owner
window when help events occur.
dwLanguageId
Specifies the language in which to display the text contained in the
predefined push buttons. This value must be in the form returned by the
MAKELANGID macro.
For a list of the language identifiers supported by Win32, see
Language Identifiers. Note that each localized release of Windows typically contains resources
only for a limited set of languages. Thus, for example, the U.S. version offers
LANG_ENGLISH, the French version offers LANG_FRENCH, the German version offers
LANG_GERMAN, and the Japanese version offers LANG_JAPANESE. Each version offers
LANG_NEUTRAL. This limits the set of values that can be used with the
wLanguageId parameter. Before specifying a language identifier, you should enumerate the
locales that are installed on a system.
See Also
HELPINFO,
LoadIcon,
MAKEINTRESOURCE,
MAKELANGID,
MessageBoxEx,
MessageBoxIndirect,
WM_HELP
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