Qt Safe Renderer Examples
- Building and Running the Examples

Qt Safe Renderer Examples

After you have installed Qt Safe Renderer, you find the Qt Safe Renderer examples under <Qt installation directory>/Examples. Qt Safe Renderer provides the following examples:

Example	Target platform	Example Path	Description	Build via .pro File
Telltales	A host platform	<Qt installation directory>/Examples/QtSafeRenderer-<version>/telltales/desktop	Telltales demonstrates how you can include Qt Safe Renderer into an application that contains both safety-critical UI elements and non-safety UI elements. Telltales also demonstrates how the safety-critical rendering is done on a separate process.	<Qt installation directory>/Examples/QtSafeRenderer-<version>/examples.pro
Telltales	QNX	<Qt installation directory>/Examples/QtSafeRenderer-<version>/telltales/qnx	The QNX version of the Telltales example.	<Qt installation directory>/Examples/QtSafeRenderer-<version>/examples.pro
Telltales	INTEGRITY	<Qt installation directory>/Examples/QtSafeRenderer-<version>/telltales/integrity	The INTEGRITY version of the Telltales example.	<Qt installation directory>/Examples/QtSafeRenderer-<version>/examples.pro
Indicators	A host platform	<Qt installation directory>/Examples/QtSafeRenderer-<version>/indicators	Indicators demonstrates how you can create a safety-critical UI with Qt Quick Designer and how you can quickly test it on your host platform. On a host platform, you can use Indicators together with Telltales.	<Qt installation directory>/Examples/QtSafeRenderer-<version>/indicators/indicators.pro
Qt Cluster	QNX, INTEGRITY	<Qt installation directory>/Examples/QtSafeRenderer-<version>/qtcluster	Qt Cluster demonstrates rendering on QNX and INTEGRITY and recovery from the main UI failure.	<Qt installation directory>/Examples/QtSafeRenderer-<version>/qtcluster/qtcluster.pro

Telltales is designed so that when it is run at the same time with Indicators, Qt Safe Renderer renders the safety-critical UI elements defined in Indicators to the Telltales UI. To demonstrate the functionality, build both examples and run first Telltales, then Indicators.

You can also use Indicators for testing how to add new Qt Safe Renderer UI elements in the UI form with Qt Quick Designer. These new safety-critical UI elements are rendered in the Telltales application window, too.

For more information about Indicators and Telltales, see the following topics:

Telltales: Rendering Safety-Critical UI
Indicators: Creating Safety-Critical UI
Qt Cluster: Rendering on QNX and INTEGRITY
Running Examples on QNX
Running Examples on INTEGRITY
Testing the Messaging Interface Note: The example code that is part of the Qt Safe Renderer installation does not fully follow the MISRA C++ guidelines.

Building and Running the Examples

You find the instructions for building the examples under the platform specific topics that are listed in Building Qt Safe Renderer.

In order to build and run the examples, you must have Qt 5.9 or later, and Qt Creator 4.5.0 or later installed on the host platform. Note the following:

For Green Hills Software INTEGRITY, Qt Safe Renderer is supported with Qt 5.9.4 and later. This is due to QTBUG-62568 INTEGRITY on Renesas H3 Salvator-X that has been fixed into Qt 5.9.4.
If you use Qt Safe Renderer with Qt 5.9.3, you need to build Qt from sources. That is due to QTBUG-64820 Qt module builds fail with older GCC versions. For instructions on how to build Qt from sources, see Building Qt Sources. Safety-Critical UI with Qt Quick Designer Telltales: Rendering Safety-Critical UI

Available under certain Qt licenses.Find out more.