Supported Environment Variables in Qt Quick Controls¶
This page contains a list of all environment variables that Qt Quick Controls supports. The environment variables are primarily meant for testing purposes, but they can also be used to set system-wide defaults.
Variable
Description
QT_QUICK_CONTROLS_STYLESpecifies the default Qt Quick Controls style . The value can be either one of the built-in styles, for example
"Material", or a custom style such as"MyStyle".
QT_QUICK_CONTROLS_FALLBACK_STYLESpecifies a fallback style for custom styles . The value can be one of the built-in styles, for example
"Material",
QT_QUICK_CONTROLS_CONFSpecifies the location of the Qt Quick Controls configuration file . By default, the configuration file is loaded from the application’s resources in
":/qtquickcontrols2.conf".
QT_QUICK_CONTROLS_HOVER_ENABLEDSpecifies whether Qt Quick Controls use hover effects . The value can be set to
0or1to disable or enable hover effects, respectively.
Imagine style specific environment variables:
Variable
Description
QT_QUICK_CONTROLS_IMAGINE_PATHSpecifies the path to the directory that contains the Imagine style assets. If not specified, the built-in assets are used.
For example, to specify a path to a directory stored in the resource system :
QT_QUICK_CONTROLS_IMAGINE_PATH=:/imagine-assetsTo specify a relative path to a local directory:
QT_QUICK_CONTROLS_IMAGINE_PATH=imagine-assetsNote
Due to a technical limitation, the path should not be named “imagine” if it is relative to the
qtquickcontrols2.conffile.
Material style specific environment variables:
Variable
Description
QT_QUICK_CONTROLS_MATERIAL_THEMESpecifies the default Material theme . The value can be one of the available themes, for example
"Dark".
QT_QUICK_CONTROLS_MATERIAL_VARIANTSpecifies the Material variant. The Material Design has two variants: a normal variant designed for touch devices, and a dense variant for desktop. The dense variant uses smaller sizes for controls and their fonts.
The value can be
"Normal"or"Dense".
QT_QUICK_CONTROLS_MATERIAL_ACCENTSpecifies the default Material accent color . The value can be any color , but it is recommended to use one of the pre-defined Material colors , for example
"Teal".
QT_QUICK_CONTROLS_MATERIAL_PRIMARYSpecifies the default Material primary color . The value can be any color , but it is recommended to use one of the pre-defined Material colors , for example
"BlueGrey".
QT_QUICK_CONTROLS_MATERIAL_FOREGROUNDSpecifies the default Material foreground color . The value can be any color , or one of the pre-defined Material colors , for example
"Brown".
QT_QUICK_CONTROLS_MATERIAL_BACKGROUNDSpecifies the default Material background color . The value can be any color , or one of the pre-defined Material colors , for example
"Grey".
Universal style specific environment variables:
Variable
Description
QT_QUICK_CONTROLS_UNIVERSAL_THEMESpecifies the default Universal theme . The value can be one of the available themes, for example
"Dark".
QT_QUICK_CONTROLS_UNIVERSAL_ACCENTSpecifies the default Universal accent color . The value can be any color , but it is recommended to use one of the pre-defined Universal colors , for example
"Violet".
QT_QUICK_CONTROLS_UNIVERSAL_FOREGROUNDSpecifies the default Universal foreground color . The value can be any color , or one of the pre-defined Universal colors , for example
"Brown".
QT_QUICK_CONTROLS_UNIVERSAL_BACKGROUNDSpecifies the default Universal background color . The value can be any color , or one of the pre-defined Universal colors , for example
"Steel".
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