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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.
Audio & Graphics API
Gestures Library Reference
The Gestures library provides gesture recognizers to detect gestures through touch events that occur when you place one or more fingers on a touch screen.
Gestures Library Reference
The Gestures library primarily provides gesture recognizers to detect gestures through mtouch events that occur when you place one or more fingers on a touch screen.
Data Types and Helper Functions (types.h)
Common data types and helper functions.

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
  - Audio Developer's Guide
    The Audio Developer's Guide is intended for developers who want to write audio applications using the QNX Sound Architecture (QSA) drivers and library.
  - Gestures Library Reference
    The Gestures library provides gesture recognizers to detect gestures through touch events that occur when you place one or more fingers on a touch screen.
    - Gestures Library Overview
      The Gestures library provides gesture recognizers to detect gestures through touch events that occur when you place one or more fingers on a touch screen.
    - Gesture Recognition
      Gesture recognition is performed by gesture recognizers that detect gestures through touch events.
    - User defined gestures
      You can define gesture recognizers to detect gestures that are not already supported by the Gestures library (custom gestures). Gesture recognizers that are used to detect custom gestures can be compiled with the application code and added to a gesture set in the same way that system gesture recognizers are added to a gesture set.
    - Gesture Tutorials
      Gestures tutorials aim to help you understand how to use the Gestures library in your own applications by providing step-by-step guides.
    - Gestures Library Reference
      The Gestures library primarily provides gesture recognizers to detect gestures through mtouch events that occur when you place one or more fingers on a touch screen.
      - Gesture Buckets (bucket.h)
        Data types and functions for gesture buckets.
      - Global Settings (defaults.h)
        Global settings for gesture timings.
      - Double Tap (double_tap.h)
        Definition of the double tap gesture.
      - Event Lists (event_list.h)
        Data types and functions for event lists.
      - Long Press (long_press.h)
        Definition of the long press gesture.
      - Pinch Gestures (pinch.h)
        Definition of the pinch gesture.
      - Press and Tap (press_and_tap.h)
        Definition of the press and tap gesture.
      - Rotate Gesture (rotate.h)
        Definition of the rotate gesture.
      - Gesture Sets (set.h)
        Data types and functions for gesture sets.
      - Swipe Gesture (swipe.h)
        Definition of the swipe gesture.
      - Tap Gesture (tap.h)
        Definition of the tap gesture.
      - Gesture Timers (timer.h)
        Functions and datatypes for gestures timers.
      - Triple Tap (triple_tap.h)
        Definition of the triple tap gesture.
      - Two Finger Pan (two_finger_pan.h)
        Definition of the two finger pan gesture.
      - Two Finger Tap (two_finger_tap.h)
        Definition of the two finger tap gesture.
      - Two Finger Double Tap (two_finger_double_tap.h)
        Definition of the double tap gesture.
      - Data Types and Helper Functions (types.h)
        Common data types and helper functions.
        Definitions in types.h
        Preprocessor macro definitions for the types.h header file in the library.
        diff_time_ms()
        Return the elapsed time between two events
        gesture_add_mustfail()
        Add a gesture to the 'must fail' list
        gesture_base
        Common data structure for all gestures
        gesture_base_init()
        Initialize the gesture base data structure
        gesture_base_t
        Common data structure for all gestures
        gesture_callback_f
        Gesture callback function prototype
        gesture_coords_t
        Gesture coordinates
        gesture_e
        Gesture type enumeration
        gesture_funcs_t
        Touch event handling functions
        gesture_state_e
        Gesture state enumeration
        map_contact_id()
        Remap the contact id from the touch evemt
        max_displacement_abs()
        Calculate the maximum displacement between two gesture events
        save_coords()
        Save the touch event coordinates
  - Image Library Reference
  - Input Events Library Reference
    The Input Events library provides the framework necessary for Screen Graphics Subsystem to communicate with your touch driver.
  - OpenWF Configuration Developer's Guide
    If you are integrating a new display, you must configure and provide the parameters of your display based on its specifications via the OpenWF Display Configuration API (Wfdcfg Library).
  - Screen Graphics Subsystem Developer's Guide
    QNX Screen Graphics Subsystem is a graphics framework that provides all the functionality necessary to develop interactive user experiences.
  - Video Capture Developer's Guide
    The video capture framework provides applications the ability to capture frames from a video input source. These frames can be passed to a graphics component such as Screen for display.
- Multimedia
- Networking Middleware
- Programming
- Sensor Framework
- 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.

types.h

Common data types and helper functions.

The types.h header file provides data type definitions and helper functions for recognizing gestures from the touch screen.

Page updated: March 12, 2026