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QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running QNX Neutrino 7.1.
Sensor Framework
Sensor Framework Libraries
ADAS Library Developer's Guide
The ADAS library facilitates the development of embedded systems that rely on sensor data.
ADAS Library Reference
You can use the ADAS library to create applications that visualize and/or record sensor data.
adas_api.h
Main definitions and functions of the ADAS library.
adas_get_num_viewers()
Retrieve how many viewers are configured in the configuration

QNX Momentics IDE User's Guide
This User's Guide describes version 7.1 of the Integrated Development Environment (IDE) that's part of the QNX Momentics tool suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running QNX Neutrino 7.1.
- Quickstart Guide
- OS Components & Operations
- Audio & Graphics API
- Multimedia
- Networking Middleware
- Programming
- Sensor Framework
  - Architecture
  - Getting Started
    This guide gets you started with the Sensor Framework for QNX SDP.
  - Sensor Framework Libraries
    - ADAS Library Developer's Guide
      The ADAS library facilitates the development of embedded systems that rely on sensor data.
      - ADAS Library Overview
        The ADAS library provides a simplified means to develop applications that visualize sensor data.
      - Configuring the ADAS Library
        The ADAS library configuration file must reside where it can be accessed by the ADAS library on your target.
      - Using Custom Algorithms
        You can integrate custom algorithms into applications built using the ADAS library.
      - Using Viewer Plugins
      - ADAS Library Reference
        You can use the ADAS library to create applications that visualize and/or record sensor data.
        adas_api.h
        Main definitions and functions of the ADAS library.
        adas_algorithm_t
        Supported algorithms of the ADAS library
        adas_configure_viewer()
        Dynamically configure an ADAS viewer instance
        adas_destroy()
        Perform cleanup when the ADAS library is no longer needed
        adas_error_t
        Error codes for the ADAS library
        adas_get_num_viewers()
        Retrieve how many viewers are configured in the configuration
        adas_get_supported_views()
        Retrieve the list of supported views associated with a viewer
        adas_get_viewer_configuration()
        Retrieve the current configuration of an ADAS viewer instance
        adas_get_viewer_info()
        Retrieve information about a viewer in the configuration
        adas_initialize()
        Perform one-time initialization of the ADAS library
        adas_record_start()
        Start synchronized recording of all input data
        adas_record_stop()
        Stop synchronized recording of all input data
        adas_set_viewer_visibility()
        Dynamically set a viewer's visibility
        adas_start_viewer_sequence()
        Start applying a configured viewer sequence
        adas_stop_viewer_sequence()
        Stop applying a viewer sequence that was previously started
        adas_view_t
        Supported views of the ADAS library viewers
        adas_viewer_info_t
        Information about a configured viewer
        adas_viewer_type_t
        Supported types of viewers of the ADAS library
        adas_defs.h
        Common definitions of the ADAS Library.
        adas_external_algo.h
        Definitions and functions for writing your own algorithms to be used with the ADAS library.
        adas_fusion_defs.h
        Definitions for the ADAS Fusion object that collects information from algorithms that process sensor data.
        adas_log.h
        Logging functionality for the ADAS library.
        adas_opencv.h
        Definitions and functions to facilitate the use of the OpenCV library within the ADAS library.
        adas_sensor_defs.h
        Definitions for supporting sensors in the ADAS library.
        adas_viewer_plugin.h
        Definitions and functions used by the ADAS library to interface with viewer plugins.
    - Camera Developer's Guide
      The Camera library abstracts the complexity of interfacing with a camera connected to the target board.
    - Sensor Developer's Guide
      The Sensor library abstracts the complexity of interfacing with sensors and cameras connected to the target board.
  - Sensor Framework Services
- System Security Guide
  The QNX System Security Guide is intended for both system integrators who are responsible for the security of a QNX Neutrino RTOS system and developers who want to create a QNX Neutrino resource manager free from vulnerabilities.
- Utilities & Libraries
QNX Hypervisor
The QNX Hypervisor allows you to run multiple OSs on a target system so you can separate critical and non-critical functions, support a wide variety of applications, and reduce hardware costs.
QNX Software in the Cloud
QNX Software in the Cloud enables developers to use the QNX software in Amazon Web Services (AWS) and Microsoft Azure (Azure).
QNX Advanced Virtualization Frameworks User's Guide
This User's Guide is aimed at all systems integrators and developers who want to design and build embedded systems using the QNX Advanced Virtualization Frameworks.
Typographical Conventions, Support, and Licensing
This section describes the typographical conventions used throughout the documentation and explains how to obtain technical support.

adas_get_num_viewers()

Retrieve how many viewers are configured in the configuration

Synopsis:

#include <adas/adas_api.h>

uint32_t adas_get_num_viewers(void)

Library:

libadas

Returns:

The number of viewers supported in the configuration.

Page updated: March 12, 2026