---
title: Comparison Operator Constants
framework: applicationservices
role: pseudoSymbol
path: applicationservices/apple_event_manager/comparison_operator_constants
---

# Comparison Operator Constants

Specify a comparison operation to perform on two operands.

## Overview

Overview When you call the CreateCompDescriptor(_:_:_:_:_:) function, you pass one of these comparison operators in the comparisonOperator parameter. The CreateCompDescriptor function creates a comparison descriptor that specifies how to compare one or more Apple event objects with either another Apple event object or a descriptor. The actual comparison of the two operands is performed by the object comparison function provided by the client application—see OSLCompareProcPtr. The way a comparison operator is interpreted is up to each application. For related information, see Constants for Object Specifiers, Positions, and Logical and Comparison Operations.

## Topics

### Constants

- [kAEBeginsWith](coreservices/kaebeginswith.md)
- [kAEContains](coreservices/kaecontains.md)
- [kAECoreSuite](coreservices/kaecoresuite.md)