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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
| user32.lib
| Header File
| winuser.h
| Unicode
| WinNT
| Platform Notes
| None
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MessageBoxIndirect
[Now Supported on Windows NT]
The MessageBoxIndirect function creates, displays, and operates a message box. The message box
contains application-defined message text and title, any icon, and any combination
of predefined push buttons.
int MessageBoxIndirect(
LPMSGBOXPARAMS lpMsgBoxParams
| // address of structure for message box parameters
| );
|
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Parameters
lpMsgBoxParams
Pointer to a MSGBOXPARAMS structure that contains information used to display the message box.
Return Values
The return value is zero if there is not enough memory to create the message
box.
If the function succeeds, the return value is one of the following menu-item
values returned by the dialog box:
Value
| Meaning
| IDABORT
| Abort button was selected.
| IDCANCEL
| Cancel button was selected.
| IDIGNORE
| Ignore button was selected.
| IDNO
| No button was selected.
| IDOK
| OK button was selected.
| IDRETRY
| Retry button was selected.
| IDYES
| Yes button was selected.
|
If a message box has a Cancel button, the function returns the IDCANCEL value
if either the ESC key is pressed or the Cancel button is selected. If the message box has no
Cancel button, pressing ESC has no effect.
Remarks
When you use a system-modal message box to indicate that the system is low on
memory, the strings pointed to by the lpszText and lpszCaption members of the MSGBOXPARAMS structure should not be taken from a resource file, because an attempt to
load the resource may fail.
When an application calls MessageBoxIndirect and specifies the MB_ICONHAND and MB_SYSTEMMODAL flags for the dwStyle member of the MSGBOXPARAMS structure, Windows displays the resulting message box regardless of available
memory. When these flags are specified, Windows limits the length of the
message box text to three lines. Windows does not automatically break the lines to fit in the message box, however, so the
message string must contain carriage returns to break the lines at the appropriate
places.
If you create a message box while a dialog box is present, use the handle of
the dialog box as the hWnd parameter. The hWnd parameter should not identify a child window, such as a control in a dialog
box.
Windows 95: The system can support a maximum of 16,364 window handles.
See Also
MessageBox, MessageBoxEx, MSGBOXPARAMS
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