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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 the QNX OS 8.0.
Graphics
OpenWF Display Server User's Guide
The OpenWF Display Server (wfd-server) is a resource manager that provides applications the ability to show image buffers directly to the display controller via the OpenWF Display API.
Utilities and binaries
WFD server includes some utilities and binaries to help with calibration, debugging, and demonstrating features.
wfd-demo
Initialize the display with a QNX logo

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX 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 the QNX OS 8.0.
- Quickstart Guide
- System Architecture
  The System Architecture guide accompanies the QNX OS and is intended for both application developers and end-users.
- OS Components & Operations
- Graphics
  - 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.
  - 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).
  - OpenWF Display Server User's Guide
    The OpenWF Display Server (wfd-server) is a resource manager that provides applications the ability to show image buffers directly to the display controller via the OpenWF Display API.
    - Before you begin
    - Introduction to the OpenWF Display Server
      The OpenWF Display Server (wfd-server) enables applications to show image buffers on the display without using Screen.
    - Configuring OpenWF Display Server
      You configure the OpenWF Display server from the wfd device 1 section of your graphics configuration (e.g., graphics.conf) file.
    - Starting wfd-server
      Screen and OpenWF Display Server share the same graphic configuration file. Ensure that Screen and its associated libraries, along with the libraries associated with the OpenWF Display Server are available on your target.
    - Utilities and binaries
      WFD server includes some utilities and binaries to help with calibration, debugging, and demonstrating features.
      - wfd-demo
        Initialize the display with a QNX logo
      - wfd-power-mode
        Set the power mode on a port
      - wfd-server-info
        Provide WFD system information
      - wfd-screenshot
        Write the contents of a port to memory and a bmp file
      - wfd-writeback
        Write the contents of a port to memory
    - wfdext.h
      QNX Extensions to OpenWF Display Specification.
  - 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.
- Programming
- System Security Guide
  The QNX System Security Guide is intended for both system integrators who are responsible for the security of a QNX OS system and developers who want to create a QNX OS resource manager free from vulnerabilities.
- Utilities & Libraries
- Migrating to QNX OS 8.0
QNX Software in the Cloud
QNX Software in the Cloud enables developers to use the QNX OS in the Amazon cloud environment.
QNX Toolkit for Visual Studio Code
This User's Guide describes the QNX^® Toolkit for Visual Studio Code. The guide introduces you to the QNX Toolkit by explaining the QNX development environment and how to build, run, and debug your QNX^® Operating System (OS) applications and systems.
QNX Hypervisor User's Guide
This User's Guide explains the QNX hypervisor architecture and provides instructions for installing and running a QNX Hypervisor system, changing system components and configuration, and using hypervisor features such as virtual devices (vdevs).
Typographical Conventions, Support, and Licensing
This section describes the typographical conventions used throughout the documentation, explains how to obtain technical support, and provides some information about licensing.

wfd-demo

Initialize the display with a QNX logo

Syntax:

wfd-demo -d device_id -p port_id -l pipe_id [options]
          [-f rgba8888|yvyu|uyvy|yuy2]
          [-m mode_no]
          [-s0|1|2]
          [-i]
          [-aalpha_value]
          [-b]
          [-r]
          [-Pport_id]
          [-Lpipe_id]
          [-Mmode_no]

Runs on:

QNX OS

Graphics options:

-f rgba8888|yvyu|uyvy|yuy2

Graphics (splash) rgbx8888 formats.

-m mode_no

Set the mode number. If -1, discard modes less than 800 pixels wide or 480 pixels high. Then select the first mode, in enumeration order, that has the preferred flag. If none are flagged, select the first mode.

-s0|1|2

Enable splash animation. Choose from the following options:

0 for static QNX logo
1 for QNX glow
2 for QNX beat (default)

-i

Update immediately without waiting for vsync. The default updates at vsync.

-aalpha_value

Set the alpha channel value for pixel transparency. Choose from the range of 0 to 255. This option is disabled by default.

-b

Set the background color to solid red.

-r

Scale the image to full screen if possible.

Writeback options:

If your WFD driver supports writeback, these options set up your display for displaying the writeback content. This is done through QNX WFD extensions that capture the contents of the display into a destination image and then posts this image to another display.

-Pport_id: Sets the port id to display writeback content. Default is 0.
-Lpipe_id: Sets the pipeline id to display writeback content. Default is 0.
-Mmode_no: Sets the mode number for port to display writeback content. Default is 0.

Description:

The wfd-demo displays the QNX logo either as a static or animated image using OpenWF. If writeback is available and the display arguments are specified, it captures the display port and displays it to another pipeline or port as specified by the -P and -L options on the same device.

Page updated: March 05, 2025