Sets the alert status for a trendline with the specified ID number; . TL_SetAlert returns a value of 0 if alert status was successfully modified, and a value of -2 if the specified trendline ID number is invalid.
==== Usage ====<syntaxhighlight>TL_SetAlert(TL_ID,AlertStatus)</syntaxhighlight> ==== Parameters ==== [[TL_ID]] - a numerical expression specifying the trendline ID number [[AlertStatus]] - a numerical expression specifying the alert status for the trendline: 0 - Alert disabled
1 == Parameters ==:'''TL_ID''' - Breakout intra-bar a numerical expression specifying the trendline ID number.
An :'''AlertStatus''' - a numerical expression specifying the alert is triggered if the High crosses over status for the trendline or the Low crosses under the trendline. : ::'''0''' - Alert triggering conditions are evaluated intra-bardisabled.
2 ::'''1''' - Breakout on close intra-bar.:::Alert triggering conditions are evaluated intra-bar.:::An alert is triggered if the High crosses over the trendline or the Low crosses under the trendline.
::'''2''' - Breakout on close.:::Alert triggering conditions are evaluated at Close of a bar.:::An alert is triggered if the Close of the previous bar was below the trendline and the Close of the current bar is above the trendline, or if the Close of the previous bar was above the trendline and the Close of the current bar is below the trendline. Alert triggering conditions are evaluated at Close of a bar.
==== Notes ==== * A trendline-specific ID number is returned by [[TL_New]] when the trendline is created. * Use [[TL_GetAlert]] to get the alert properties of an already existing trendline.
==== Example ====
Set alert status to "Breakout on close" for a trendline with the ID number of 3:
<syntaxhighlight>Value1=TL_SetAlert(3,2);</syntaxhighlight>
[[Category:Trendline Drawing]]