Canvas Developer Guide

Getting Started
Using Canvas
Canvas SDK
Referencing the Canvas SDK
Authentication
Getting Context in Your Canvas App
Cross-Domain XHR
Resizing a Canvas App
Implementing Canvas App Events
Canvas App Events Considerations
Creating a Canvas App Event
Subscribing to a Canvas App Event
Unsubscribing from a Canvas App Event
Using Streaming API in a Canvas App
Debugging in a Canvas App
Using the <select> Tag in a Canvas App
Canvas Apps and Visualforce Pages
Canvas Apps in a Page Layout or a Mobile Card
Canvas Apps in the Publisher
Canvas Apps in the Chatter Feed
Canvas in the Salesforce App
Customizing Your App Lifecycle
Reference
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Unsubscribing from a Canvas App Event

Unsubscribing from a Custom Event

The following code example shows how to call the unsubscribe method to unsubscribe from a canvas app event.

Unsubscribing from Multiple Custom Events

The following code example shows how to call the unsubscribe method to unsubscribe from multiple canvas app events. The events you subscribe to can be in different namespaces or might not have a namespace.