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<td >Qt 5.9</td><td ><a href="qtquickcontrols2-index.html">Qt Quick Controls 2</a></td><td >Supported Environment Variables in Qt Quick Controls 2</td></tr></table><table class="buildversion"><tr>
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<h1 class="title">Supported Environment Variables in Qt Quick Controls 2</h1>
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<p>This page contains a list of all environment variables that Qt Quick Controls 2 supports. The environment variables are primarily meant for testing purposes, but they can also be used to set system-wide defaults.</p>
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<thead><tr class="qt-style"><th >Variable</th><th >Description</th></tr></thead>
<tr valign="top" class="odd"><td ><code>QT_QUICK_CONTROLS_STYLE</code></td><td >Specifies the default <a href="qtquickcontrols2-styles.html">Qt Quick Controls 2 style</a>. The value can be either one of the built-in styles, for example <code>"Material"</code>, or the path to a custom style such as <code>":/mystyle"</code>.</td></tr>
<tr valign="top" class="even"><td ><code>QT_QUICK_CONTROLS_FALLBACK_STYLE</code></td><td >Specifies a fallback style for <a href="qtquickcontrols2-customize.html#creating-a-custom-style">custom styles</a>. The value can be one of the built-in styles, for example <code>"Material"</code>,</td></tr>
<tr valign="top" class="odd"><td ><code>QT_QUICK_CONTROLS_STYLE_PATH</code></td><td >Specifies a list of additional paths that are used to lookup <a href="qtquickcontrols2-styles.html">Qt Quick Controls 2 styles</a>. Multiple path entries must be <a href="../qtcore/qdir.html#listSeparator">separated</a> by <code>':'</code> under Unix and <code>';'</code> under Windows. By default, styles are looked up from <code>$QML2_IMPORT_PATH/QtQuick/Controls.2</code>.</td></tr>
<tr valign="top" class="even"><td ><code>QT_QUICK_CONTROLS_CONF</code></td><td >Specifies the location of the <a href="qtquickcontrols2-configuration.html">Qt Quick Controls 2 configuration file</a>. By default, the configuration file is loaded from the application's resources in <code>":/qtquickcontrols2.conf"</code>.</td></tr>
<tr valign="top" class="odd"><td ><code>QT_QUICK_CONTROLS_HOVER_ENABLED</code></td><td >Specifies whether Qt Quick Controls 2 use <a href="qml-qtquick-controls2-control.html#hoverEnabled-prop">hover effects</a>. The value can be set to <code>0</code> or <code>1</code> to disable or enable hover effects, respectively.</td></tr>
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<p><a href="qtquickcontrols2-material.html">Material style</a> specific environment variables:</p>
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<thead><tr class="qt-style"><th >Variable</th><th >Description</th></tr></thead>
<tr valign="top" class="odd"><td ><code>QT_QUICK_CONTROLS_MATERIAL_THEME</code></td><td >Specifies the default <a href="qtquickcontrols2-material.html#material-theme-attached-prop">Material theme</a>. The value can be one of the available themes, for example <code>"Dark"</code>.</td></tr>
<tr valign="top" class="even"><td ><code>QT_QUICK_CONTROLS_MATERIAL_ACCENT</code></td><td >Specifies the default <a href="qtquickcontrols2-material.html#material-accent-attached-prop">Material accent color</a>. The value can be any <a href="../qtquick/qml-color.html#colorbasictypedocs">color</a>, but it is recommended to use one of the <a href="qtquickcontrols2-material.html#pre-defined-material-colors">pre-defined Material colors</a>, for example <code>"Teal"</code>.</td></tr>
<tr valign="top" class="odd"><td ><code>QT_QUICK_CONTROLS_MATERIAL_PRIMARY</code></td><td >Specifies the default <a href="qtquickcontrols2-material.html#material-primary-attached-prop">Material primary color</a>. The value can be any <a href="../qtquick/qml-color.html#colorbasictypedocs">color</a>, but it is recommended to use one of the <a href="qtquickcontrols2-material.html#pre-defined-material-colors">pre-defined Material colors</a>, for example <code>"BlueGrey"</code>.</td></tr>
<tr valign="top" class="even"><td ><code>QT_QUICK_CONTROLS_MATERIAL_FOREGROUND</code></td><td >Specifies the default <a href="qtquickcontrols2-material.html#material-foreground-attached-prop">Material foreground color</a>. The value can be any <a href="../qtquick/qml-color.html#colorbasictypedocs">color</a>, or one of the <a href="qtquickcontrols2-material.html#pre-defined-material-colors">pre-defined Material colors</a>, for example <code>"Brown"</code>.</td></tr>
<tr valign="top" class="odd"><td ><code>QT_QUICK_CONTROLS_MATERIAL_BACKGROUND</code></td><td >Specifies the default <a href="qtquickcontrols2-material.html#material-background-attached-prop">Material background color</a>. The value can be any <a href="../qtquick/qml-color.html#colorbasictypedocs">color</a>, or one of the <a href="qtquickcontrols2-material.html#pre-defined-material-colors">pre-defined Material colors</a>, for example <code>"Grey"</code>.</td></tr>
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<p><a href="qtquickcontrols2-universal.html">Universal style</a> specific environment variables:</p>
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<thead><tr class="qt-style"><th >Variable</th><th >Description</th></tr></thead>
<tr valign="top" class="odd"><td ><code>QT_QUICK_CONTROLS_UNIVERSAL_THEME</code></td><td >Specifies the default <a href="qtquickcontrols2-universal.html#universal-theme-attached-prop">Universal theme</a>. The value can be one of the available themes, for example <code>"Dark"</code>.</td></tr>
<tr valign="top" class="even"><td ><code>QT_QUICK_CONTROLS_UNIVERSAL_ACCENT</code></td><td >Specifies the default <a href="qtquickcontrols2-universal.html#universal-accent-attached-prop">Universal accent color</a>. The value can be any <a href="../qtquick/qml-color.html#colorbasictypedocs">color</a>, but it is recommended to use one of the <a href="qtquickcontrols2-universal.html#pre-defined-universal-colors">pre-defined Universal colors</a>, for example <code>"Violet"</code>.</td></tr>
<tr valign="top" class="odd"><td ><code>QT_QUICK_CONTROLS_UNIVERSAL_FOREGROUND</code></td><td >Specifies the default <a href="qtquickcontrols2-universal.html#universal-foreground-attached-prop">Universal foreground color</a>. The value can be any <a href="../qtquick/qml-color.html#colorbasictypedocs">color</a>, or one of the <a href="qtquickcontrols2-universal.html#pre-defined-universal-colors">pre-defined Universal colors</a>, for example <code>"Brown"</code>.</td></tr>
<tr valign="top" class="even"><td ><code>QT_QUICK_CONTROLS_UNIVERSAL_BACKGROUND</code></td><td >Specifies the default <a href="qtquickcontrols2-universal.html#universal-background-attached-prop">Universal background color</a>. The value can be any <a href="../qtquick/qml-color.html#colorbasictypedocs">color</a>, or one of the <a href="qtquickcontrols2-universal.html#pre-defined-universal-colors">pre-defined Universal colors</a>, for example <code>"Steel"</code>.</td></tr>
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<h2 id="related-information">Related Information</h2>
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<li><a href="qtquickcontrols2-styles.html">Styling Qt Quick Controls 2</a></li>
<li><a href="qtquickcontrols2-configuration.html">Qt Quick Controls 2 Configuration File</a></li>
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