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- .context List Categories
- .list
- Standard error handler
- .context Standard error handler
- .list
- ErrMessageBox Standard PM error message function.
- ERRORMSG Record structure used in a user defined error message list.
- .context ERRORMSG
- .context PERRORMSG
- .ref ErrMessageBox
- #define INCL_WINDIALOGS
- #include <os2.h>
- #include <errmsg.h>
-
- typedef struct {
- USHORT usCode; // error code
- USHORT flStyle; // message box style (see explanation below)
- PSZ pszMsg; // ptr to error message text
- } ERRORMSG;
-
- typedef ERRORMSG FAR * PERRORMSG;
-
- The \bERRORMSG\p structure defines the record structure used in a user defined
- error message list used by the \bErrMessageBox\p function.
-
- \bParameters Description\p
- ────────────────────────────────────────────────────────────────────────────
- \busCode\p Error code.
-
- \bflStyle\p Specifies the type of message-box window created. This parameter
- consists of a button flag, an icon flag, a default button flag,
- and any number of special flags. The following four lists
- describe the available flags which can be combined using the OR
- operator together for this parameter:
-
- \bButtons Meaning\p
- ────────────────────────────────────────────────────────────────
- \iMB_ABORTRETRYIGNORE\p Message box contains Abort, Retry, and
- Ignore push buttons.
-
- \iMB_ENTER\p Message box contains an Enter push button.
-
- \iMB_ENTERCANCEL\p Message box contains Enter and Cancel push
- buttons.
-
- \iMB_OK\p Message box contains an OK push button.
-
- \iMB_OKCANCEL\p Message box contains OK and Cancel push
- buttons.
-
- \iMB_RETRYCANCEL\p Message box contains Retry and Cancel push
- buttons.
-
- \iMB_YESNO\p Message box contains Yes and No push
- buttons.
-
- \iMB_YESNOCANCEL\p Message box contains Yes, No, and Cancel
- push buttons.
-
- \bIcon Meaning\p
- ────────────────────────────────────────────────────────────────
- \iMB_ICONASTERISK\p Message box contains asterisk icon.
-
- \iMB_ICONEXCLAMATION\p Message box contains exclamation-point
- icon.
-
- \iMB_ICONHAND\p Message box contains hand icon.
-
- \iMB_ICONQUESTION\p Message box contains question-mark icon.
-
- \iMB_NOICON\p Message box does not contain an icon.
-
- \bDefault button Meaning\p
- ────────────────────────────────────────────────────────────────
- \iMB_DEFBUTTON1\p First button is the default (first button is
- always the default unless MB_DEFBUTTON2 or
- MB_DEFBUTTON3 is specified).
-
- \iMB_DEFBUTTON2\p Second button is the default.
-
- \iMB_DEFBUTTON3\p Third button is the default.
-
- \bSpecial flags Meaning\p
- ────────────────────────────────────────────────────────────────
- \iMB_APPLMODAL\p Message box is application modal.
-
- \iMB_SYSTEMMODAL\p Message box is system modal.
-
- \iMB_HELP\p Message box contains Help push button.
-
- \iMB_MOVEABLE\p Message box is movable.
-
- \bpszMsg\p Points to the error message text.
-
-
- \bSee Also\p
-
- \bErrMessageBox\p
- .context ErrMessageBox
- .ref ERRORMSG,PERRORMSG,WinMessageBox,WinFlashWindow,WM_HELP
- #define INCL_WINDIALOGS
- #include <os2.h>
- #include <errmsg.h>
-
- .paste Syntax
- USHORT \bErrMessageBox\p( \ihwndOwner\p,\ipszCaption\p,\iusErrorCode\p,
- \iperrormsg\p,\icErrMsgCnt\p,[argument]... )
- HWND \ihwndOwner\p; /* owner window handle */
- PSZ \ipszCaption\p; /* message box window title */
- USHORT \iusErrorCode\p; /* error code */
- PERRORMSG \iperrormsg\p; /* pointer to user defined error list */
- USHORT \icErrMsgCnt\p; /* number of items in user defined error list */
- .end
-
- The \bErrMessageBox\p function creates, displays, and operates a message-box
- window that displays the error message associated with a given error
- code.
-
- \bParameters Description\p
- ────────────────────────────────────────────────────────────────────────────
- \ihwndOwner\p Identifies the owner window of the message-box window. The owner
- window is activated when ErrMessageBox returns.
-
- \ipszCaption\p Points to the title of the message-box window. If this parameter
- is NULL, "Error" (the default title) is displayed. The maximum
- length of the text is device-dependent. If the text is too long,
- it will be clipped.
-
- \iusErrorCode\p Contains the error code.
-
- \iperrormsg\p Points to the user defined error message list. If this
- parameter is NULL then the default system error message
- list will be used.
-
- \icErrMsgCnt\p Contains the number of items in the user defined error message
- list. This parameter is ignored if perrormsg is NULL.
-
- \iargument\p Optional list of arguments that are passed to the
- vsprintf function in order to allow error messages to have
- variable contents. NOTE THAT THIS FUNCTION REQUIRES THAT ALL
- POINTER ARGUMENTS (SUCH AS POINTERS TO STRINGS) MUST BE FAR
- POINTERS.
-
- \bReturn Value\p
-
- The return value indicates the user's response to the message. It can be one
- of the following vlaues:
-
- \bValue Meaning\p
- ────────────────────────────────────────────────────────────────────────
- \iMBID_ABORT\p Abort button was selected.
-
- \iMBID_CANCEL\p Cancel button was selected.
-
- \iMBID_ENTER\p Enter button was selected.
-
- \iMBID_IGNORE\p Ignore button was selected.
-
- \iMBID_NO\p No button was selected.
-
- \iMBID_OK\p OK button was selected.
-
- \iMBID_RETRY\p Retry button was selected.
-
- \iMBID_YES\p Yes button was selected.
-
- \iMDID_ERROR\p The WinMessageBox function failed--an error occurred.
-
- If a message box has a Cancel button, MBID_CANCEL is returned if the ESCAPE
- key is pressed or if the Cancel button is selected. If the message box has
- no Cancel button, pressing the ESCAPE key has no effect.
-
- \bComments\p
-
- If a message-box window is created as part of the processing of a dialog
- window, the dialog window should be made the owner of the message-box
- window.
-
- If a system modal message-box window is created to tell the user that the
- system is running out of memory, the strings passed into this function
- should not be taken from a resource file because an attempt to load the
- resource file may fail due to lack of memory. Such a message-box window can
- safely use the hand icon (MB_ICONHAND), however, because this icon is always
- memory-resident.
-
- If the message box contains a help pushbutton, the message box window
- identifier will be set to the error code value.
-
- The total length of the error message string after it has been formatted
- and stored by vsprintf must not exceed 512 characters (including the
- terminating NULL character).
-
-
- See Also
-
- \bERRORMSG\p, \bWinMessageBox\p, \bWinFlashWindow\p, \bWM_HELP\p
-