EPadLink ePad Vision Manual de usuario descargar pdf (Pagina 9)

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Integration Guide (ePad-vision SDK for Chrome & Firefox)

Once the manifest file creation is completed, the next step is to create the files referenced in the

manifest file:

 Background.js JavaScript file which communicates with NMH for capturing signature and

interaction with the ePad-vision device.

 content.js – Content script file, gets injected to web pages matching URLs mentioned in

manifest file.

If your implementation of the extension differs from that used in the sample above, you should create

your own files (.js, .htm, etc. as appropriate) that provide the details of the files named in the manifest

file.

7.2 – Extension Installation

 Open the Chrome browser, type and navigate to the URL chrome://extensions/ or else go to

Settings->Extensions.

 Make sure Developer Mode is selected and then click Load unpacked extension button.

 Browse to Extension folder (<SDK location>\Sample\ChromeExtension) where the extension’s

manifest.json file is located and click OK.

 Confirm and accept the permissions dialog displayed.

 Once the installation is complete, take a note of the ID of the extension. This should be copied

into the NMH manifest file.

7.3 – Native Messaging Host Installation

The first step of the installation is to register the native messaging host on the client/developer desktop.

For registering a native messaging host, the application must install a manifest file that defines the

native messaging host configuration. Below is the default com.topaz.epadvision.win.json, distributed

along with the SDK and it can be used. Some of the parameters of the file will be changed based on the

target machine.

{

"name": "com.topaz.epadvision.win",

"description": "Chrome ePad-vision SDK Native Messaging Host",

"path":"C:\\ePad-visionSDK\\SDK\\Chrome\\Chrome.ePad-visionSDK\\Chrome.ePad-visionSDK.exe",

"type": "stdio",

"allowed_origins": [

"chrome-extension://mcjlhkcioghfmodbaapbhgagdcgehmfg/"

]

}

Parameter

Description

Name

Name of the native messaging host. Clients pass this string to the

Chrome NMH connect call and launch the host. Keep it the same as

above.

Description

Short application description. Keep it the same as above.

Path

Path to the native messaging host binary Chrome.ePad-visionSDK.exe.

This should be changed based on location where the SDK is

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