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copied!<p>If you have an <a href="http://code.google.com/chrome/extensions/options.html" rel="noreferrer">options page</a> and you want to communicate to the <a href="http://code.google.com/chrome/extensions/background_pages.html" rel="noreferrer">background page</a>, you can simply do, <a href="http://code.google.com/chrome/extensions/extension.html#method-getBackgroundPage" rel="noreferrer">chrome.extension.getBackgroundPage()</a></p> <h2>Options Page communicating to the Background Page</h2> <hr> <p><strong>options.html</strong></p> <pre><code>var bkg = chrome.extension.getBackgroundPage() bkg.startExtension(); bkg.stopExtension(); </code></pre> <p><strong>background.html</strong></p> <pre><code>function startExtension() { console.log('Starting Extension'); } function stopExtension() { console.log('Stopping Extension'); } </code></pre> <h2>Content Script communicating to the Background Page</h2> <hr> <p>When you are referring to "Code being injected to the page" is that any website? If so, you would need to use a <a href="http://code.google.com/chrome/extensions/content_scripts.html" rel="noreferrer">content script</a> with <a href="http://code.google.com/chrome/extensions/messaging.html" rel="noreferrer">Message Passing</a>. To do so, you can do this.</p> <p><strong>content_script.js</strong></p> <pre><code>chrome.extension.sendRequest({action:'start'}, function(response) { console.log('Start action sent'); }); </code></pre> <p><strong>background.html</strong></p> <pre><code>function onRequest(request, sender, sendResponse) { if (request.action == 'start') startExtension() else if (request.action == 'stop') stopExtension() sendResponse({}); }; chrome.extension.onRequest.addListener(onRequest); </code></pre> <p>In any case, <a href="http://code.google.com/chrome/extensions/messaging.html" rel="noreferrer">message passing</a> is a good read for anyone coming into extensions.</p>

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