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If you do not specify any arguments in the MESSAGE_BOX_SHOW function, the form's description is used as the message box title, there is no icon and the OK button is used.
With the formatting functions you can use all the arguments of the MESSAGE_BOX_SHOW function except the last one, Text to Show (if you specify any text, it will override the formatted text). The following statement adds Yes and No buttons, the question mark icon and the title Employee Details to the message box:
use builtin(MESSAGE_BOX_SHOW) with_args(YesNo No Question 'Employee Details')
&<img src="../resources/images/opentoc-dark.png" title="Open Contents List" border="0"&>