.. highlightlang:: us

.. index:: MessageBoxError

.. _messageboxerror:

MessageBoxError
===============

.. us.tag  MessageBoxError ENGLISH DialogBoxes New363

:ref:`MessageBoxError` displays an error message box.

.. function::  bool = MessageBoxError(ssMessage, ...)

.. us.return

**Return Value**

*bool* is always TRUE (1).

.. us.params

**Parameters**

.. uparam:: ssMessage

   *ssMessage* is a scalar string containing the message text. The text can
   contain format sequences and newline characters ``"\n"``. See :ref:`printf`
   for a format description.

.. us.example

**Example**

::

   * MessageBoxError("Can't read file '%s'", ssFileName);

.. seealso::
   :ref:`overview-dialogboxes`,
   :ref:`DialogBox`,
   :ref:`MessageBoxWarning`,
   :ref:`MessageBoxInfo`,
   :ref:`MessageBoxQuestionYesNo`,
   :ref:`MessageBoxQuestionYesNoCancel`,
   :ref:`printf`,
   :ref:`MessageBox`

:sub:`id-1472438`