1,022 bytes added,
14:42, 19 March 2012 This reserved word returns a value of True on the bar clicked by the user. It will return a value of False for all other bars. This allows you to optimize your trading strategies, analysis techniques, and functions for speed, as it will allow PowerLanguage to skip all commentary-related calculations for all bars except for the one where the commentary is requested
'''Usage'''
<syntaxhighlight>
AtCommentaryBar
</syntaxhighlight>
'''Notes'''
The difference between [[AtCommentaryBar]] and [[CommentaryEnabled]] is that [[CommentaryEnabled]] returns a value of True for ''ALL'' bars when the Expert Commentary window is open, while the [[AtCommentaryBar]] returns a value of True only for the bar clicked.
'''Example'''
The following statements display a 50-bar average of the volume in the '''Expert Commentary''' window but avoid calculating this 50-bar average for every other bar of the chart:
<syntaxhighlight>
If AtCommentaryBar Then
Commentary("The 50-bar vol avg: ", Average(Volume, 50));
</syntaxhighlight>