For example (Windows), if the parameter is set to C:\App\nm_host.exe, the binary is started using the current directory ( C:\App\). The host process starts with the current directory set to the directory that contains the host binary. On macOS and Linux, the path must be absolute. On Windows devices, you can use relative paths to the directory that contains the native messaging host manifest file. Specifies the path to the native messaging host binary. The value must not start or end with a dot, and a dot must not be followed by another dot. The value must only contain lowercase alphanumeric characters, underscores, and dots. Clients pass the string to nnectNative or ndNativeMessage. Specifies the name of the native messaging host. The native messaging host manifest file must be a valid JSON file that contains the following keys: Key "chrome-extension://knldjmfmopnpolahpmmgbagdohdnhkik/ " "path": "C: \\Program Files \\My App \\chrome_native_messaging_host.exe ", The following is an example manifest.json file: Manifest V3 This is the extension manifest file, not the native messaging host manifest file, which is covered in later sections. Step 1 - Add permissions to the extension manifestĪdd the nativeMessaging permission to the manifest.json file of the extension. To create your extension to send and receive messages with native app hosts, do the following steps. Or, install your extension using the Microsoft Edge Add-ons website, and your extension prompts users to install the host. When a user installs the package, both the extension and the host are installed. Package your extension and the host together. To acquire the extension and native app host, there are two different distribution models: However, native apps aren't installed or managed by Microsoft Edge. The native app host sends and receives messages with extensions using standard input and standard output.Įxtensions that use native messaging are installed in Microsoft Edge similar to any other extension. To communicate with a native Win32 app that's installed on a user's device, an extension uses the message-passing APIs.
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