---
title: "Enable spot communication"
slug: "enable-spot-communication"
updated: 2026-04-13T08:14:19Z
published: 2026-04-13T08:14:19Z
canonical: "docs.grassfish.com/enable-spot-communication"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.grassfish.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Enable spot communication

Spot-to-spot communication lets spots in different splits on different players communicate with each other, for example, to synchronize their contents.

## Send a message to another spot

Sends a spot-to-spot message to another player or split.

| Parameters | `function(ip, uniqueID, value)` **ip** is the IP of the player to which the message is sent. **uniqueID** is for differentiating between various messages. **value** is the message as a string. The string can also contain XML or JSON data. The sender and receiver spot must use the same structure. |
| --- | --- |
| Examples | `GFSpotBase.sendSpotToSpotMessage("127.0.0.1","ProductSelectedEvent","<product><id>243</id><name>Some Product Name</name></product>");` `GFSpotBase.sendSpotToSpotMessage("192.168.0.50","NewsDisplayCurrentPageEvent","3");` |
| Players | Windows Player version 7.7 or lat Linux Player version 10.1 or later |

## Receive a message from another spot

To receive spot-to-spot messages in the HTML application, the reception method must be overwritten and the player must be know that the spot is for spot-to-spot messages.

Use the `init()` method after the `<body onload="init()">`:

```javascript
function init() {
  // Override the receiver function
  GFSpotBase.receiveSpotToSpotMessage = function (uniqueID, value) {
    // do something
  };

  // Tell the player that you are ready to receive spot to spot messages
  GFSpotBase.readyForSpotToSpotMessage();
}
```

## Send an email via the player

Sends an email via the player.

| Parameters | `function(headerText, bodyTextLines, email)` **headerText** is the subject of the email. **bodyTextLines** is an array of lines for the body. **email** specifies the address if @ is included. Otherwise, the value is written in the body and the email is sent to the email address specified in the player config file. |
| --- | --- |
| Examples | `GFSpotBase.sendEmail("Some subject", ["Some body"], "example@domain.com");` |
| Player | Windows from global Version 7.7 Windows/Linux from player version 10.1 |

> [!NOTE]
> Note
> 
> - You must configure and activate this function on the player.
> - Separate all values that are transferred to the player using: **'_|_'**
> - Don’t use this separator in the parameter values.