Browser zoom level javascript download

browser zoom level javascript download

Do you have a different look (misaligned text, shifted icons) when you download? Set your browser and computer zoom to %. As you maybe know i really love the Flash and JavaScript combination. So what my script does is to create a flash in the background and reads it. One way to detect the browser zoom level is to use the dahn.dllfileclub.comPixelRatio property. For instance, we can write: window. EM CLIENT ACTIVATE LICENSE Browser zoom level javascript download cisco c20 camera software


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webdriver how to change the zoom level of browsers? Zoom in and Zoom out


This answer is based on comments about devicePixelRatio coming back incorrectly on user's answer. I found that this command was coming back incorrectly in some instances too when working with a desktop, Surface Pro 3, and Surface Pro 4. What I found is that it worked on my desktop, but the SP3 and SP4 were giving different numbers from each other and the desktop. I noticed though that the SP3 was coming back as 1 and a half times the zoom level I was expecting.

So, the solution to the comments should be to divide the returned zoom level by the scale of the machine you are currently on. Have it currently working however still need to separate by browser. Tested successfully on Chrome 75 and Safari It also gets the zoom value correct on retina display and calculations are triggered on resize event.

Zoom factor and scale are not to be confused with each other. Users control "zoom"; "scale" is a CSS transformation. This does that. I use it in conjunction with media queries to detect in JavaScript device scaling, i. I used a different approach, i created a dom element with a fixed height and width of px, position fixed and opacity of 0, basically a hidden element.

From my page I had to link to JQuery and this file to get it work, even though my master page already had a link to JQuery. This is question was posted like ages back, but today when i was looking for the same answer "How to detect zoom in and out event", i couldn't find one answer that would fit all the browsers. This can be captured using:.

The problem lies in the types of monitor used, a 4k monitor vs standard monitor. Chrome is by far the smartest at being able to tell us what the zoom level is just by using window. Other browsers, not so much. IE and Edge are probably the worst, as they handle zoom levels much differently. As of May , here's what I have to detect zoom levels for a few of the most popular browsers, Chrome, Firefox, and IE I have it tell me what the zoom percentage is.

If anyone would care to take a stab at other browsers and update the fiddle, then please do so. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to detect page zoom level in all modern browsers? Ask Question. Asked 12 years, 4 months ago. Modified 4 months ago. Viewed k times. Is there a way to trap the 'zoom' event? I need this because some of my calculations are pixel-based and they may fluctuate when zoomed.

Modified sample given by tfl This page alerts different height values when zoomed. Pellentesque sollicitudin tortor in lacus tincidunt volutpat. Integer dignissim imperdiet mollis. Suspendisse quis tortor velit, placerat tempor neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.

Praesent bibendum auctor lorem vitae tempor. Nullam condimentum aliquam elementum. Nullam egestas gravida elementum. Maecenas mattis molestie nisl sit amet vehicula. Donec semper tristique blandit. Vestibulum adipiscing placerat mollis. Improve this question. Vega Basically there is no way to detect zoom in : I have tested all the below solutions on Chrome 78 on Mac Catalina and none of them worked. Add a comment. Sorted by: Reset to default. Highest score default Date modified newest first Date created oldest first.

WebKit : broken since r document. To get ratio in terms of device pixels instead of relative to default zoom , multiply by window. Old WebKit? We use the position:fixed element to get the width of the viewport including the space where the scrollbars are ; document. This is broken since sometime in ; I know no way to get the zoom level in Opera anymore.

Improve this answer. Claude 7, 3 3 gold badges 33 33 silver badges 51 51 bronze badges. Very nice work, although this does't work for me in IE 8. Any chance to wrap all this up in a single function getZoom that works across all browsers? Perhaps also release as a jQuery plugin? Nice work again. Paul Irish also wrote a similar matchMedia polyfill that is part of Modernizr. Good news, everyone! They finaly did it! Vieport API! The Viewport API only works for pinch-zoom; if you zoom on desktop it says scale is 1.

Jason T Featheringham there are reasons other than "discrimination" to want to know the zoom level. Zoom is set across all pages for a domain, but you might want to handle it differently in a game page or an extension popup than you do in a help page. Show 9 more comments. Clokman 1 1 silver badge 10 10 bronze badges. Works perfect, also on mobile devices. It is also quite interesting to see what mobile devices have what devicePixelRatio.

This also greatly helped me switching a fixed element to absolute ly positioned element when the zoom event occurs, or when the inital value of devicePixelRatio changes. Thank you!! Doesn't work as expected: It returns in Chrome on MacBook with retina when browser not zoomed.

Browsers with support for high DPI screens will not give the expected outcome when using such display, neither will Safari regardless of display. Safari on iMac always returns This doesn't work on Chrome on Retina displays, as the default value is not 1, but 2. Different screens with different pixel densities should deliver different values. Show 5 more comments. RamenChef 5, 11 11 gold badges 29 29 silver badges 40 40 bronze badges.

Very nice. Well, window. Also, not on every OS the window border width is 8 pixels even on same OS the design can vary. However I would suggest to substract 16, not 8, since you have the window borders twice. Also, some browser have a border on their actual rendering window like FF and some not Safari - but even this depends on which OS you use the browser e. Safari has a border on Windows. Backing up the initial innerWidth e. Outputs 0 no matter what for me , feb. This is working in Chrome and Edge however both browsers include the debug F12 window in the outerWidth so if this is open your results will vary wildly.

Show 2 more comments. Jay Jay 1 1 silver badge 3 3 bronze badges. This method now always report svg. Probably because they resize the entire screen figures based on zoom which is a bug. IE11 seem to have the same problem on Desktop with the screen height adjusted to the viewport devicePixelRatio which is quite screwed up. Could you please provide a code how to detect actual zoom using media query? It works even for very tiny amounts of zoom.

Works in Safari too. Always reports true on retina devices such as macbook pro. Alex von Thorn Alex von Thorn 1 1 silver badge 4 4 bronze badges. Why subtract 10 from outerWidth? Probably for the scrollbar. Each scrollbar is different too, like in iOS its much smaller.

Plus this solution seems to be chrome only — Sarah. After spending several frustrating hours on this problem I have reluctantly come to the conclusion that it is not possible to reliably read out the zoom factor on desktop because W3C and the browser vendors worked together harmoniously to completely fuck up the viewport system.

On mobile it IS possible. First, window. With page zoom it always stays 1, as you saw. On desktop browsers, forget it. Unfortunately resize events are untrustworthy on both mobile and desktop browsers because why would you make them trustworthy?

So maybe add a scroll event as well, and maybe a polling script that checks once every two seconds or so. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Get the CSS-Tricks newsletter. Leave this field empty. The related posts above were algorithmically generated and displayed here without any load on our servers at all, thanks to Jetpack.

No, not really. The spec is a draft The support chart lists a lot of support window. In other words: useless. I had a fella spell out a situation like this: He wanted to use CSS grid to layout cemetery plots interesting already , like a top-down blueprint of a graveyard. I don't know what the "change zoom" event would be window.

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