---
title: params
framework: Core Services
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 17.0+, macOS 10.0+]
path: coreservices/componentparameters/1516563-params
---

# params

An array that contains the parameters specified by the application that called your component. You can use the `CallComponentRoutine` or `CallComponentRoutineWithStorage` function to convert this array into a Pascal-style invocation of a subroutine in your component.

## Declaration

```occ
long params[1];
```