qmlpreview¶

A tool that provides a live updating preview for the QML files.

The Qml Preview¶

The QML Preview tool watches QML and JavaScript files on disk and updates the application live with any changes. The application to be previewed has to have QML debugging enabled. More…

Usage

qmlpreview [ options ] executable [parameters…]

Usage
qmlpreview [ options ] executable [parameters…]

options¶

Option

Description

–verbose

Print debugging output.

-h, –help

Displays help on commandline options.

–help-all

Displays help, including generic Qt options.

-v, –version

Displays version information.

Option	Description
–verbose	Print debugging output.
-h, –help	Displays help on commandline options.
–help-all	Displays help, including generic Qt options.
-v, –version	Displays version information.

Arguments¶

Argument

Description

executable

The path of the executable file that loads a QML document.

parameters

Arguments of the executable

Argument	Description
executable	The path of the executable file that loads a QML document.
parameters	Arguments of the executable

Details¶

Enable QML Debugging¶

To enable QML debugging, make sure you build your application with appropriate configuration parameters. When using qmake, you should add CONFIG+=qml_debug in the .pro file. If you use another build system, then QT_QML_DEBUG variable should be defined.

qt_add_executable(MyApp
...
)

target_compile_definitions(MyApp PRIVATE QT_QML_DEBUG)