Qt Environment Variable Reference

Table of contents

• QT_QPA_PLATFORM_PLUGIN_PATH
• QT_PLUGIN_PATH
• QML_IMPORT_PATH
• QML2_IMPORT_PATH

Legend

<QT_DIR>: Absolute path to Qt binaries

QT_QPA_PLATFORM_PLUGIN_PATH

Point specifically to platform plugins.

Applies to: Qt 5
Example: <QT_DIR>/plugins/platforms

QT_PLUGIN_PATH

Point to pre-defined hierarchy of plugins.

Applies to: Qt 5
Example: <QT_DIR>/plugins
Example content:
    /accessible
    /audio
    /bearer
    /designer
    /iconengines
    /imageformats
    /mediaservice
    /platforms
    /playlistformats
    /position
    /printsupport
    /PyQt5
    /qml1tooling
    /qmltooling
    /sensorgestures
    /sensors
    /sqldrivers

QML_IMPORT_PATH

Absolute path of QtQuick 1 libraries.

Applies to: QtQuick 1
Example: <QT_DIR>/qml
Example content:
    /qminimal.dll
    /qoffscreen.dll
    /qwindows.dll

QML2_IMPORT_PATH

Absolute path of QtQuick 2 libraries.

Applies to: QtQuick 2
Example: <QT_DIR>/qml
Example content:
    /Enginio
    /Qt
    /QtBluetooth
    /QtGraphicalEffects
    /QtMultimedia
    /QtNfc
    /QtPositioning
    /QtQml
    /QtQuick
    /QtQuick.2
    /QtSensors
    /QtTest
    /QtWebKit
    /QtWinExtras

/all

All qgetenv() variables used in the Qt source. As grepped by Florian Bruhin in the PyQt mailing list.

BROWSER
BT_TEST_DEVICE
COMPUTERNAME
COMSPEC
DBUS_SESSION_BUS_ADDRESS
DEBUG
DEFAULT_BROWSER
DESKTOP_SESSION
DESKTOP_STARTUP_ID
DEVICE_IP
DISABLE_NI_WARNING
DISPLAY
DXSDK_DIR
DYLD_LIBRARY_PATH
EGLFS_X11_FULLSCREEN
EGLFS_X11_SIZE
EGL_PLATFORM
ENGINIO_API_URL
ENGINIO_CREDENTIALS_FILE_PATH
ENGINIO_EMAIL_ADDRESS
ENGINIO_LOGIN_PASSWORD
ExtensionSdkDir
GIT_BRANCH
HOME
HOMEDRIVE
HOMEPATH
INCLUDE
JAVA_HOME
JENKINS_HOME
KDEDIRS
KDEHOME
KDE_SESSION_VERSION
LANG
LANGUAGE
LC_ALL
LC_CTYPE
LC_MEASUREMENT
LC_MESSAGES
LC_MONETARY
LC_NUMERIC
LC_TIME
LD_LIBRARY_PATH
LIB
MINISTRO_ANDROID_STYLE_PATH
MINISTRO_SSL_CERTS_PATH
NATIVEDEBUG
NATIVEDEBUGSPEED
NEMO_RESOURCE_CLASS_OVERRIDE
ORIENTATION
PATH
PATHEXT
PROMPT
PULSE_GIT_BRANCH
PULSE_TESTR_BRANCH
PlatformToolset
QDBUS_DEBUG
QDECLARATIVELANGUAGE_UPDATEERRORS
QMAKE
QMAKEFLAGS
QML2_IMPORT_PATH
QMLSCENE_DEVICE
QMLSCENE_IMPORT_NAME
QMLVISUAL_ALL
QML_IMPORT_PATH
QML_LEAK_CHECK
QML_NO_THREADED_RENDERER
QQNX_DISABLE_POWER_SAVE
QQNX_DISPLAY_DEPTH
QQNX_PHYSICAL_SCREEN_SIZE
QQNX_RENDERER_DEFAULT_AUDIO_SINK
QSG_ANTIALIASING_METHOD
QSG_DISTANCEFIELD_ANTIALIASING
QSG_FIXED_ANIMATION_STEP
QSG_RENDERER_BATCH_NODE_THRESHOLD
QSG_RENDERER_BATCH_VERTEX_THRESHOLD
QSG_RENDERER_BUFFER_STRATEGY
QSG_RENDERER_DEBUG
QSG_RENDER_LOOP
QSG_SANITY_CHECK
QSG_VISUALIZE
QT3D_DEBUG_MODEL
QT3D_LOG_EVENTS
QT3D_OPTIONS
QTCOMPOSE
QTCONTACTS_MANAGER_OVERRIDE
QTEST_ENABLE_EXTRA_SELFTESTS
QTEST_EVENT_DELAY
QTEST_EXTERNAL_DEBUG
QTEST_EXTERNAL_RUN
QTEST_KEEP_IMAGEDATA
QTEST_KEYEVENT_DELAY
QTEST_MOUSEEVENT_DELAY
QTEST_SERIALPORT_RECEIVER
QTEST_SERIALPORT_SENDER
QTSCRIPT_TEST_CONFIG_DIR
QTSCRIPT_TEST_CONFIG_SUFFIX
QTSCRIPT_TEST_DIR
QTTESTBROWSER_USE_ARGB_VISUALS
QTWEBENGINEPROCESS_PATH
QTWEBKIT_INSPECTOR_SERVER
QTWEBKIT_PLUGIN_PATH
QT_ACCEL_DATADIVISOR
QT_ACCEL_DELIMITER
QT_ACCEL_FILEPATH
QT_ANCHORLAYOUT_NO_SIMPLIFICATION
QT_ANDROID_APP_ICON_SIZE
QT_ANDROID_DISABLE_GLYPH_CACHE_WORKAROUND
QT_ANDROID_FONTS
QT_ANDROID_FONTS_MONOSPACE
QT_ANDROID_FONTS_SERIF
QT_ANDROID_FONT_LOCATION
QT_ANDROID_MAX_ASSETS_CACHE_SIZE
QT_ANDROID_MAX_PREPOPULATED_ASSETS_CACHE_SIZE
QT_ANDROID_MINIMUM_MOUSE_DOUBLE_CLICK_DISTANCE
QT_ANDROID_RASTER_IMAGE_DEPTH
QT_ANDROID_THEME
QT_ANDROID_THEME_DISPLAY_DPI
QT_ANGLE_PLATFORM
QT_AUTH_PASSWORD
QT_AUTH_URL
QT_AUTH_USER
QT_BLOCK_EVENT_LOOPS_WHEN_SUSPENDED
QT_COMPOSITOR_NEGATE_INVERTED_Y
QT_DBL_CLICK_DIST
QT_DEBUG_FPS
QT_DEBUG_PLUGINS
QT_DEVICE_PIXEL_RATIO
QT_DF_BASE
QT_DF_BASEDEVIATION
QT_DF_RANGE
QT_DF_SCALEFORMAXDEV
QT_DF_SCALEFORNODEV
QT_DIRECTFB_BLITTER_DEBUGPAINT
QT_DRAW_SCENE_ITEM_RECTS
QT_ENABLE_REGEXP_JIT
QT_FACEBOOK_ACCESS_TOKEN
QT_FILE_SELECTORS
QT_FLUSH_PAINT
QT_FLUSH_PAINT_EVENT
QT_FLUSH_UPDATE
QT_GRAPHICSLAYOUT_DEBUG
QT_GSTREAMER_CAMERABIN_FLAGS
QT_GSTREAMER_CAMERABIN_SRC
QT_GSTREAMER_CAMERABIN_VIDEOSRC
QT_GSTREAMER_PLAYBIN_FLAGS
QT_GSTREAMER_USE_PLAYBIN_VOLUME
QT_HARFBUZZ
QT_HASH_SEED
QT_HAVE_TEST_FONTS
QT_HIGHDPI_DISABLE_2X_IMAGE_LOADING
QT_IM_MODULE
QT_LANCELOT_DIR
QT_LANCELOT_SERVER
QT_LAYOUT_DEBUG
QT_LOGGING_CONF
QT_LOGGING_RULES
QT_LOGGING_TO_CONSOLE
QT_MESSAGE_PATTERN
QT_MODULE_TO_TEST
QT_NECESSITAS_COMPATIBILITY_LONG_PRESS
QT_NO_ANTIALIASING
QT_NO_CPU_FEATURE
QT_NO_FAST_MOVE
QT_NO_FAST_SCROLL
QT_NO_FT_CACHE
QT_NO_SFW_BACKGROUND_OPERATION
QT_NO_SUBTRACTOPAQUESIBLINGS
QT_ONSCREEN_PAINT
QT_OPENGL
QT_OPENGL_DLL
QT_PAINT_FALLBACK_OVERLAY
QT_PLUGIN_PATH
QT_PROXY_HOST
QT_PROXY_PASSWORD
QT_PROXY_PORT
QT_PROXY_USER
QT_QPA_EGLFS_CURSOR
QT_QPA_EGLFS_DEBUG
QT_QPA_EGLFS_DEPTH
QT_QPA_EGLFS_DISABLE_INPUT
QT_QPA_EGLFS_FB
QT_QPA_EGLFS_FORCE888
QT_QPA_EGLFS_FORCEVSYNC
QT_QPA_EGLFS_HEIGHT
QT_QPA_EGLFS_HIDECURSOR
QT_QPA_EGLFS_NO_SURFACEFLINGER
QT_QPA_EGLFS_PHYSICAL_HEIGHT
QT_QPA_EGLFS_PHYSICAL_WIDTH
QT_QPA_EGLFS_SWAPINTERVAL
QT_QPA_EGLFS_WIDTH
QT_QPA_ENABLE_TERMINAL_KEYBOARD
QT_QPA_EVDEV_DEBUG
QT_QPA_EVDEV_KEYBOARD_PARAMETERS
QT_QPA_EVDEV_MOUSE_PARAMETERS
QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS
QT_QPA_FB_HIDECURSOR
QT_QPA_FONTDIR
QT_QPA_GENERIC_PLUGINS
QT_QPA_KMS_HIDECURSOR
QT_QPA_PLATFORM
QT_QPA_PLATFORMTHEME
QT_QPA_PLATFORM_PLUGIN_PATH
QT_QPA_VERBOSE
QT_QUICK_CONTROLS_STYLE
QT_QUICK_CORE_PROFILE
QT_SENSORS_LOAD_PLUGINS
QT_STYLE_OVERRIDE
QT_TEST_CI
QT_TEST_EXAMPLE_PRIORITY
QT_TEST_NOEXAMPLES
QT_TEST_NOTOOLS
QT_USE_ANDROID_NATIVE_DIALOGS
QT_USE_ANDROID_NATIVE_STYLE
QT_USE_NATIVE_WINDOWS
QT_USE_WINRT_NATIVE_DIALOGS
QT_VIDEONODE
QT_WAYLAND_CLIENT_BUFFER_INTEGRATION
QT_WAYLAND_DECORATION
QT_WAYLAND_DISABLE_WINDOWDECORATION
QT_WAYLAND_FORCE_DPI
QT_WAYLAND_HARDWARE_INTEGRATION
QT_WAYLAND_IGNORE_BIND_DISPLAY
QT_WAYLAND_SERVER_BUFFER_INTEGRATION
QT_WAYLAND_SHELL_INTEGRATION
QT_WEBENGINE_USE_EXPERIMENTAL_SCREEN_CAPTURE
QT_WEBKIT2_DEBUG
QT_WEBKIT2_PP_CMD_PREFIX
QT_WEBKIT2_WP_CMD_PREFIX
QT_WEBKIT_DISABLE_UIPROCESS_DUMPPIXELS
QT_WEBKIT_FORCE_FULLSCREEN_VIDEO
QT_WEBKIT_LOG
QT_WEBKIT_PAUSE_UI_PROCESS
QT_WEBKIT_PAUSE_WEB_PROCESS
QT_WEBKIT_SUPPRESS_WEB_PROCESS_OUTPUT
QT_WEBKIT_THEME_NAME
QT_WINVER_OVERRIDE
QT_XCB_NO_GRAB_SERVER
QT_XKB_CONFIG_ROOT
QUERY_STRING
QV4_FORCE_INTERPRETER
QV4_MM_AGGRESSIVE_GC
QV4_MM_MAXBLOCK_SHIFT
QV4_MM_MAX_CHUNK_SIZE
QV4_MM_STATS
QV4_NO_INTERPRETER_STACK_SLOT_ALLOCATION
QV4_NO_OPT
QV4_NO_REGALLOC
QV4_NO_SSA
QV4_SHOW_ASM
QV4_SHOW_IR
Q_DBUS_BLOCKING_CALL_MAIN_THREAD_WARNING_MS
Q_DBUS_BLOCKING_CALL_OTHER_THREAD_WARNING_MS
Q_WARN_EMPTY_MESH
SENSORLOG
SHOW_EXIT_VALUE
STRESSDEBUG
SystemDrive
SystemRoot
TEMP
TEST_TMPDIR
TMP
TMPDIR
TSLIB_TSDEVICE
TZ
UNICODEMAP_JP
USER
USERPROFILE
VCINSTALLDIR
VCInstallDir
WEBKIT_SHOW_COMPOSITING_DEBUG_VISUALS
WindowsSdkDir
XCOMPOSEFILE
XCURSOR_SIZE
XCURSOR_THEME
XDG_CACHE_HOME
XDG_CONFIG_DIRS
XDG_CONFIG_HOME
XDG_CURRENT_DESKTOP
XDG_DATA_DIRS
XDG_DATA_HOME
XDG_RUNTIME_DIR
all_proxy
ftp_proxy
http_proxy
https_proxy
no_proxy
qgetenv(#var)
qgetenv()
qgetenv(const char *varName)
qgetenv(debugBackingStoreEnvironmentVariable)
qgetenv(devicePixelRatioEnvVar)
qgetenv(envVar)
qgetenv(env_override)
qgetenv(environment)
qgetenv(envname)
qgetenv(libraryPath)
qgetenv(name)
qgetenv(resourceNameVar)
qgetenv(string.mid(1, string.size()
qgetenv(string.mid(rep + 2, reg_var.matchedLength()
qgetenv(var.toLatin1()
qgetenv(var.toLocal8Bit()
qgetenv(varName)
qgetenv(variable)
qgetenv(vcDirVar)
tst_QProcess
windir