Altium Designer Documentation
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PCB Query Functions
Layer Checks
OnSignal
Created: September 03, 2015 | Updated: August 20, 2021
| Applies to versions: 15.1, 16.0, 16.1, 17.0, 17.1, 18.0, 18.1, 19.0, 19.1, 20.0, 20.1 and 20.2
Now reading version 19.1. For the latest, read: OnSignal for version 21
Parent page: PCB Query Functions - Layer Checks
Summary
Returns all objects on signal layers (Top Layer, Bottom Layer, Signal Layer 1-30) and the Multi-Layer.
Syntax
OnSignal : Boolean
Example Usage
OnSignal
OnSignal = True
Returns all objects on signal layers (Top Layer, Bottom Layer, Signal Layer 1-30) and the Multi-Layer.
Not OnSignal
OnSignal = False
Returns all objects except objects on signal layers (Top Layer, Bottom Layer, Signal Layer 1-30) and the Multi-Layer.