Returns the comment for the trend tag plotted by the specified pen if a comment exists, otherwise returns the name of the trend tag.
Syntax
CSV_Trend_DspTrendText(hTrendAN,iPen)
#hTrendAN:
Animation point number of the trend.
#iPen:
Number of the trend pen.
Return Value
Trend tag comment if it exists, otherwise the trend tag name (all capitalized).