Description: Runs the Horizontal Bar GraphItem formula when the chart is double-clicked.
Execution: On desktop, the chart-level handler iterates through every GraphItem and every generated series. This formula runs once for each series belonging to the Horizontal Bar item; it does not identify a particular clicked bar. Subset series can therefore cause multiple executions from one double-click.
Arguments: The formula editor declares Argument_XValue and Argument_YValue, but the runtime path does not populate either value. Their availability and content are not reliable and they must not be used.
Result: Ignored. The caller also does not check the formula's success result.
Availability: Desktop only. Browser double-clicks are not connected to this VCL chart event.
Example: Record the interaction without relying on the unpopulated coordinates.
CIP_SetRuntimeVariable("HorizontalBarDoubleClicked", True);