Coding the native side with C

Some devices use the C programming language in their native implementations. If you are targeting your native extension for such a device, use the native extensions C API to code the native side of your extension.

The C API is in the file FlashRuntimeExtensions.h. The file is available in the AIR SDK in the include directory. The AIR SDK is available at http://www.adobe.com/products/air/sdk/ .

The AIR runtime connects the ActionScript side of an extension to the native side of the extension.

Using the C API, you do the following tasks:

  • Initialize the extension.

  • Initialize each extension context when it is created.

  • Define functions that the ActionScript side can call.

  • Dispatch events to the ActionScript side.

  • Access data passed from the ActionScript side, and pass data back to the ActionScript side.

  • Create and access context-specific native data and context-specific ActionScript data.

  • Clean up extension resources when the extension’s work is done.

For details about each C API function, such as parameters and return values, see Native C API Reference .

For examples of native extensions that use the C API, see Native extensions for Adobe AIR .

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