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<nav class="navbar navbar--light navbar--fixed-top"><div class="navbar__inner"><div class="navbar__items"><div aria-label="Navigation bar toggle" class="navbar__toggle" role="button" tabindex="0"><svg xmlns="http://www.w3.org/2000/svg" width="30" height="30" viewBox="0 0 30 30" role="img" focusable="false"><title>Menu</title><path stroke="currentColor" stroke-linecap="round" stroke-miterlimit="10" stroke-width="2" d="M4 7h22M4 15h22M4 23h22"></path></svg></div><a aria-current="page" class="navbar__brand active" href="/"><img class="navbar__logo" src="/img/logo-circle.png" alt="NodeGui Logo"/><strong>NodeGui</strong></a></div><div class="navbar__items navbar__items--right"><a class="navbar__item navbar__link" label="Docs" position="right" href="/docs/guides/getting-started">Docs</a><a class="navbar__item navbar__link" label="API" position="right" href="/docs/api/QApplication">API</a><a class="navbar__item navbar__link" label="Blog" position="right" href="/blog">Blog</a><a class="navbar__item navbar__link" href="https://github.com/nodegui/nodegui" label="GitHub" position="right" target="_blank" rel="noopener noreferrer">GitHub</a><div class="react-toggle displayOnlyInLargeViewport_1gtM"><div class="react-toggle-track"><div class="react-toggle-track-check"><span class="toggle_16vC moon_1N64"></span></div><div class="react-toggle-track-x"><span class="toggle_16vC sun_3CZP"></span></div></div><div class="react-toggle-thumb"></div><input type="checkbox" aria-label="Dark mode toggle" class="react-toggle-screenreader-only"/></div></div></div><div role="presentation" class="navbar__sidebar__backdrop"></div><div class="navbar__sidebar"><div class="navbar__sidebar__brand"><a aria-current="page" class="navbar__brand active" href="/"><img class="navbar__logo" src="/img/logo-circle.png" alt="NodeGui Logo"/><strong>NodeGui</strong></a></div><div class="navbar__sidebar__items"><div class="menu"><ul class="menu__list"><li class="menu__list-item"><a class="menu__link" label="Docs" position="right" href="/docs/guides/getting-started">Docs</a></li><li class="menu__list-item"><a class="menu__link" label="API" position="right" href="/docs/api/QApplication">API</a></li><li class="menu__list-item"><a class="menu__link" label="Blog" position="right" href="/blog">Blog</a></li><li class="menu__list-item"><a class="menu__link" href="https://github.com/nodegui/nodegui" label="GitHub" position="right" target="_blank" rel="noopener noreferrer">GitHub</a></li></ul></div></div></div></nav><div class="container container--fluid"><div class="row"><div class="col col--3"></div><main class="col"><div><div class="padding-vert--lg"><div class="row"><div class="col"><div class="docItemContainer_3Gws"><header><h1 class="margin-bottom--lg">FAQ</h1></header><article><div class="markdown"><h2><a aria-hidden="true" class="anchor" id="why-am-i-having-trouble-installing-qode"></a><a aria-hidden="true" class="hash-link" href="#why-am-i-having-trouble-installing-qode">#</a>Why am I having trouble installing Qode?</h2><p>When running <code>npm install @nodegui/qode</code>, some users occasionally encounter
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installation errors.</p><p>In almost all cases, these errors are the result of network problems and not
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actual issues with the <code>@nodegui/qode</code> npm package. Errors like <code>ELIFECYCLE</code>,
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<code>EAI_AGAIN</code>, <code>ECONNRESET</code>, and <code>ETIMEDOUT</code> are all indications of such
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network problems. The best resolution is to try switching networks, or
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wait a bit and try installing again.</p><p>You can also attempt to download Qode directly from
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<a href="https://github.com/nodegui/qode/releases">nodegui/qode/releases</a>
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if installing via <code>npm</code> is failing.</p><h2><a aria-hidden="true" class="anchor" id="javascript-widgets-are-missing-methods-and-properties-as-compared-to-qt-widget"></a><a aria-hidden="true" class="hash-link" href="#javascript-widgets-are-missing-methods-and-properties-as-compared-to-qt-widget">#</a>Javascript widgets are missing methods and properties as compared to QT widget?</h2><p>As you would have noticed, the list of methods and properties are less compared to what is present in the Qt's corresponding widget class. This is because we havent written wrappers for them yet. You can help add more methods by following the development guide for contributors. Overtime this gap would reduce.</p><h2><a aria-hidden="true" class="anchor" id="when-will-qode-upgrade-to-latest-nodejs--qt-version"></a><a aria-hidden="true" class="hash-link" href="#when-will-qode-upgrade-to-latest-nodejs--qt-version">#</a>When will Qode upgrade to latest Node.js / Qt version?</h2><p>When a new version of Node.js/Qt gets released, we usually wait for about a month
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before upgrading the one in Qode. So we can avoid getting affected by bugs
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introduced in new Node.js/Qt versions, which happens very often.</p><h2><a aria-hidden="true" class="anchor" id="my-apps-windowwidgetstray-disappeared-after-a-few-minutes"></a><a aria-hidden="true" class="hash-link" href="#my-apps-windowwidgetstray-disappeared-after-a-few-minutes">#</a>My app's window/widgets/tray disappeared after a few minutes.</h2><p>This happens when the variable which is used to store the window/tray gets
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garbage collected.</p><p>If you encounter this problem, the following articles may prove helpful:</p><ul><li><a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Memory_Management">Memory Management</a></li><li><a href="https://msdn.microsoft.com/library/bzt2dkta(v=vs.94).aspx">Variable Scope</a></li></ul><p>If you want a quick fix, you can make the variables global by changing your
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code from this:</p><pre class="mdxCodeBlock_iHAB"><div class="codeBlockWrapper_2QGZ"><pre class="prism-code language-javascript codeBlock_19pQ" style="color:#d6deeb;background-color:#011627"><div class="token-line" style="color:#d6deeb"><span class="token keyword" style="color:rgb(127, 219, 202)">const</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"> </span><span class="token maybe-class-name">QWidget</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"> </span><span class="token operator" style="color:rgb(127, 219, 202)">=</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">require</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(173, 219, 103)">"@nodegui/nodegui"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#d6deeb"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#d6deeb"><span class="token plain"></span><span class="token keyword" style="color:rgb(127, 219, 202)">const</span><span class="token plain"> view </span><span class="token operator" style="color:rgb(127, 219, 202)">=</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(127, 219, 202)">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 139)">QWidget</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#d6deeb"><span class="token plain">view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setObjectName</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(173, 219, 103)">"container"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#d6deeb"><span class="token plain">view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setLayout</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token keyword" style="color:rgb(127, 219, 202)">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 139)">FlexLayout</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span></div></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_1BYj">Copy</button></div></pre><p>to this:</p><pre class="mdxCodeBlock_iHAB"><div class="codeBlockWrapper_2QGZ"><pre class="prism-code language-javascript codeBlock_19pQ" style="color:#d6deeb;background-color:#011627"><div class="token-line" style="color:#d6deeb"><span class="token keyword" style="color:rgb(127, 219, 202)">const</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">{</span><span class="token plain"> </span><span class="token maybe-class-name">QWidget</span><span class="token plain"> </span><span class="token punctuation" style="color:rgb(199, 146, 234)">}</span><span class="token plain"> </span><span class="token operator" style="color:rgb(127, 219, 202)">=</span><span class="token plain"> </span><span class="token function" style="color:rgb(130, 170, 255)">require</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(173, 219, 103)">"@nodegui/nodegui"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#d6deeb"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#d6deeb"><span class="token plain"></span><span class="token keyword" style="color:rgb(127, 219, 202)">const</span><span class="token plain"> view </span><span class="token operator" style="color:rgb(127, 219, 202)">=</span><span class="token plain"> </span><span class="token keyword" style="color:rgb(127, 219, 202)">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 139)">QWidget</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#d6deeb"><span class="token plain">view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setObjectName</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token string" style="color:rgb(173, 219, 103)">"container"</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#d6deeb"><span class="token plain">view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token method function property-access" style="color:rgb(130, 170, 255)">setLayout</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token keyword" style="color:rgb(127, 219, 202)">new</span><span class="token plain"> </span><span class="token class-name" style="color:rgb(255, 203, 139)">FlexLayout</span><span class="token punctuation" style="color:rgb(199, 146, 234)">(</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">)</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"></span></div><div class="token-line" style="color:#d6deeb"><span class="token plain" style="display:inline-block"></span></div><div class="token-line" style="color:#d6deeb"><span class="token plain">global</span><span class="token punctuation" style="color:rgb(199, 146, 234)">.</span><span class="token property-access">view</span><span class="token plain"> </span><span class="token operator" style="color:rgb(127, 219, 202)">=</span><span class="token plain"> view</span><span class="token punctuation" style="color:rgb(199, 146, 234)">;</span><span class="token plain"> </span><span class="token comment" style="color:rgb(99, 119, 119);font-style:italic">//prevent GC</span></div></pre><button type="button" aria-label="Copy code to clipboard" class="copyButton_1BYj">Copy</button></div></pre></div></article><div class="margin-top--xl margin-bottom--lg"><nav class="pagination-nav"><div class="pagination-nav__item"></div><div class="pagination-nav__item pagination-nav__item--next"></div></nav></div></div></div><div class="col col--3"><div class="tableOfContents_2wxO"><ul class="contents contents__left-border"><li><a href="#why-am-i-having-trouble-installing-qode" class="contents__link">Why am I having trouble installing Qode?</a></li><li><a href="#javascript-widgets-are-missing-methods-and-properties-as-compared-to-qt-widget" class="contents__link">Javascript widgets are missing methods and properties as compared to QT widget?</a></li><li><a href="#when-will-qode-upgrade-to-latest-nodejs--qt-version" class="contents__link">When will Qode upgrade to latest Node.js / Qt version?</a></li><li><a href="#my-apps-windowwidgetstray-disappeared-after-a-few-minutes" class="contents__link">My app's window/widgets/tray disappeared after a few minutes.</a></li></ul></div></div></div></div></div></main></div></div>
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