XmCreateErrorDialog — The MessageBox ErrorDialog convenience creation function "XmCreateErrorDialog"

XmCreateErrorDialog is a convenience creation function  that  creates  a  DialogShell  and  an  unmanaged
       MessageBox  child  of  the  DialogShell.   An  ErrorDialog  warns  the  user of an invalid or potentially
       dangerous condition.  It includes a symbol, a message, and three  buttons.   The  default  symbol  is  an
       octagon with a diagonal slash. The default button labels are OK, Cancel, and Help.

       Use  XtManageChild  to  pop  up  the  ErrorDialog  (passing  the MessageBox as the widget parameter); use
       XtUnmanageChild to pop it down.

       XmCreateErrorDialog forces the value of the Shell resource XmNallowShellResize to True.

       parent    Specifies the parent widget ID

       name      Specifies the name of the created widget

       arglist   Specifies the argument list

       argcount  Specifies the number of attribute/value pairs in the argument list (arglist)

       For a complete definition of MessageBox and its associated resources, see XmMessageBox(3).

XmCreateErrorDialog  —  The  MessageBox  ErrorDialog  convenience creation function "XmCreateErrorDialog"
       "creation functions" "XmCreateErrorDialog"

XmMessageBox(3).

                                                                                          XmCreateErrorDialog(3)

       Returns the MessageBox widget ID.

       #include <Xm/MessageB.h>
       WidgetXmCreateErrorDialog(
       Widgetparent,
       Stringname,
       ArgListarglist,
       Cardinalargcount);