---
title: roControlUp, roControlDown
slug: develop/rocontrolup-rocontroldown
docTags: 
createdAt: 2025-03-11T07:07:18.731Z
---

These objects are posted by an [roControlPort](docId:8ExDHgmoHqig7J-UvfCe1) instance to the configured message port when inputs change state. An *roControlDown* event is posted when the input level goes from high to low. An *roControlUp* event is posted when the input level goes from low to high.

## ifInt

### GetInt() As Integer

Retrieves the pin number associated with the event.

### SetInt(value As Integer) As Void

Sets the value of the event.

## ifUserData

### SetUserData(user\_data As Object) As Void

Sets the user data.

### GetUserData() As Object

Returns the user data that has previously been set via `SetUserData()` (on either the event or source object). It will return `Invalid` if no data has been set.

## ifSourceIdentity

### GetSourceIdentity() As Integer

Retrieves the identity value that can be used to associate events with the source *roControlPort* instance.

:::hint{type="info"}
The *ifSourceIdentity* interface has been deprecated. We recommend using the *ifUserData* interface instead.
:::