23474bae_cellaneous_Media___WikiContent__Behavior
[Display flag] dfContinuousKaraoke [Behavior] 
Ignores the highlight start argument and highlights from the beginning of the text to "highlight end." This allows you to progressively "grow" a highlight through a line of lyrics, presumably for a karaoke application.
QuickTime for Java: A Developer's Notebook/Miscellaneous Media - WikiContent
Behavior