mark Element (Microsoft.Speech)
Designates a specific reference point in the text sequence. This element can also be used to mark an output audio stream for asynchronous notification.
Required. Identifies the name of the mark element. The value is a string.
Use the empty mark element to insert a marker into an output stream to trigger asynchronous notification.
When the application reaches the mark element, the text-to-speech engine raises an event that includes the value for the name attribute of the element. In Microsoft.Speech, the speech synthesizer raises a BookmarkReached event when it encounters a mark element.