'\" t
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+.\"
+.\" $Id: menu_mark.3x,v 1.9 2006/11/04 18:33:18 tom Exp $
.TH menu_mark 3X ""
.SH NAME
\fBmenu_mark\fR - get and set the menu mark string
.SH DESCRIPTION
In order to make menu selections visible on older terminals without
highlighting or color capability, the menu library marks selected items
-in a menu with a prefix string.
-
+in a menu with a prefix string.
+.PP
The function \fBset_menu_mark\fR sets the mark string for the given menu.
Calling \fBset_menu_mark\fR with a null menu item will abolish the mark string.
Note that changing the length of the mark string for a menu while the
menu is posted is likely to produce unhelpful behavior.
-
+.PP
The default string is "-" (a dash). Calling \fBset_menu_mark\fR with
-a \fBNULL\fR menu argument will change this default.
-
+a non-\fBNULL\fR menu argument will change this default.
+.PP
The function \fBmenu_mark\fR returns the menu's mark string (or \fBNULL\fR if
there is none).
.SH RETURN VALUE
-The function \fBmenu_mark\fR returns \fBNULL\fR on error. The function
-\fBset_menu_mark\fR may return the following error codes:
+The function \fBmenu_mark\fR returns a pointer (which may be \fBNULL\fR).
+It does not set errno.
+.PP
+The function \fBset_menu_mark\fR may return the following error codes:
.TP 5
-\fBE_OK\fR
+.B E_OK
The routine succeeded.
.TP 5
-\fBE_SYSTEM_ERROR\fR
-System error occurred (see \fBerrno\fR).
-.TP 5
-\fBE_BAD_ARGUMENT\fR
+.B E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
+.TP 5
+.B E_SYSTEM_ERROR
+System error occurred (see \fBerrno\fR).
.SH SEE ALSO
\fBcurses\fR(3X), \fBmenu\fR(3X).
.SH NOTES