Native Client

Pepper C++ API

Introduction

The Pepper Plug-in API (PPAPI) lets Native Client modules communicate with the hosting browser and access system-level functions in a safe and portable way. For a brief description of Pepper see the Technical Overview.

Pepper has both a C API and a C++ API. These APIs are generally divided into two parts: functions that are implemented in the browser and that you call from your Native Client module, and functions that the browser invokes and that you must implement in your Native Client module.

To develop a Native Client module using a specific version of Pepper, you must download and use the corresponding SDK bundle. For example, to use Pepper 20 you must download and use the pepper_20 SDK bundle. Native Client modules compiled using a particular Pepper version will generally work in corresponding versions of Chrome and higher. For example, a module compiled using Pepper 20 will work in Chrome 20 and higher.

The reference documentation on this site includes both the C and C++ APIs for the most recent versions of Pepper. Before you read the reference documentation, we recommend that you read the Technical Overview and the Getting Started Tutorial.

Pepper 20

The Pepper 20 bundle/platform includes the Pepper MouseCursor API, which can be used to modify the mouse cursor, and a new example, file_histogram, which demonstrates how to enable a user to provide one or more local files to a Native Client application.

For additional information about Pepper 20, see the SDK release notes.

Pepper C++ API

The lowest level of Pepper is the C API, declared in the header files in include/ppapi/c. The C API represents the lowest level binary interface between a Native Client module and the browser.

The Pepper C++ API, declared in the header files in include/ppapi/cpp, is a wrapper around the C API. The C++ API provides a layer of abstraction and takes care of many details such as reference counting resources, thus making Pepper considerably easier to use.

Click the links below "Pepper C++ API" in the left navbar to view the C++ API by class or by file (all classes, functions, namespaces, and so on in audio.h, instance.h, url_loader.h, etc.).

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