---
title: "PostMessage Module"
canonical: https://customerscanvas.com/docs/cc6/customerscanvas.iframeapi.postmessage.htm
archived: true
applies_to:
  - product: "Customer's Canvas On-Premises"
  - product: "Design Editor"
    versions: ["6.15.0", "6.x (may differ)"]
---

**You’re viewing outdated documentation.** [View the latest Customer’s Canvas On-Premises documentation](https://customerscanvas.com/docs/on-premises/).

# PostMessage Module

**Applies to:** Customer's Canvas On-Premises; Design Editor 6.15.0, 6.x (may differ) · **Archived documentation**
 
This module carries out the [Events](https://customerscanvas.com/docs/cc6/customerscanvas.iframeapi.postmessage.events.htm.md) processing.
 
## Classes
  
|  Name |  Description |
| --- | --- |
 |  [Events](https://customerscanvas.com/docs/cc6/customerscanvas.iframeapi.postmessage.events.htm.md) |  The web-to-print editor events. To subscribe to an event, use the [Editor.subscribe](https://customerscanvas.com/docs/cc6/customerscanvas.iframeapi.editor.subscribe.htm.md) method. |
 |  [UIElementStateChangeEventArgs](https://customerscanvas.com/docs/cc6/customerscanvas.iframeapi.postmessage.uielementstatechangeeventargs.htm.md) |  Arguments of the [Events.UIElementStateChange](https://customerscanvas.com/docs/cc6/customerscanvas.iframeapi.postmessage.events.htm.md) event. |