Qt Command Line Documentation

&Lauri.Watts; &Lauri.Watts.mail;
&Burkhard.Lueck; &Burkhard.Lueck.mail;
2016-06-04
&Qt; 5.4
KDE Frameworks
qt5options 7
qt5options Common commandline options for all applications based on the Qt toolkit
`Qt application` `-style=` style / `-style` style `-stylesheet=` stylesheet / `-stylesheet` stylesheet `-widgetcount` `-reverse` `-qmljsdebugger=` port `-platform` platformName[:options] `-platformpluginpath` path `-platformtheme` platformTheme `-plugin` plugin `-qwindowgeometry` geometry `-qwindowicon` icon `-qwindowtitle` title `-reverse` `-session` session `-display` hostname:screen_number `-geometry` geometry `-dialogs=` [xp|none] `-fontengine=` freetype `-h, --help and -? on Windows` `-v --version`

## Options

The following options apply to all &Qt; applications:

`-style=` style / `-style` style

  Set the application GUI style. Possible values depend on the system configuration. If Qt is compiled with additional styles or has additional styles as plugins these will be available to the -style command line option.

`-stylesheet=` stylesheet / `-stylesheet` stylesheet

  Set the application styleSheet. The value must be a path to a file that contains the Style Sheet.

`-widgetcount`

  Print debug message at the end about number of widgets left undestroyed and maximum number of widgets existed at the same time.

`-reverse`

  Set the application's layout direction to Qt::RightToLeft. This option is intended to aid debugging and should not be used in production. The default value is automatically detected from the user's locale (see also QLocale::textDirection()).

`-qmljsdebugger=` port

  Activate the QML/JS debugger with a specified port. The value must be of format port:1234[,block], where block is optional and will make the application wait until a debugger connects to it.

`-platform` platformName[:options]

  Specify the Qt Platform Abstraction (QPA) plugin.

`-platformpluginpath` path

  Specify the path to platform plugins.

`-platformtheme` platformTheme

  Specify the platform theme.

`-plugin` plugin

  Specify additional plugins to load. The argument may appear multiple times.

`-qwindowgeometry` geometry

  Specify the window geometry for the main window using the X11-syntax. For example: -qwindowgeometry 100x100+50+50

`-qwindowicon` icon

  Set the default window icon.

`-qwindowtitle` title

  Set the title of the first window.

`-session` session

  Restore the application from an earlier session.

`-display` hostname:screen_number

  Switch displays on X11. Overrides the DISPLAY environment variable.

`-geometry` geometry

  Specify the window geometry for the main window on X11. For example: -geometry 100x100+50+50.

`-dialogs=` [xp|none]

  Only available for -platform windows. xp uses XP-style native dialogs and none disables them.

`-fontengine=` freetype

  Use the FreeType font engine.

`-h, --help and -? on Windows`

  Print all options and the application description.

`-v --version`

  Display the version string of the application.

## See Also

kf5options(7)

## Authors

Man page originally written by &Lauri.Watts; &Lauri.Watts.mail;

Updated to Frameworks 5 by &Burkhard.Lueck; &Burkhard.Lueck.mail;

The infos for this man page are from QApplication documentation, QGuiApplication documentation and QCommandLineParser documentation.