Is it possible to open a link in a new browser window on a secondary monitor connected to my PC using HTML5?
I don't think that it is possible to check if user are using multiple monitors but You may check the width of the user screen comparing to height. If it is bigger than 1.9 you can assume that he have two monitors. Then you could try to open second window with big left offset and there will be a chance that it will jump to second monitor.
i.e in case of two 1024x768 monitors the width is 2048. If you will open window on for example 1280 from left it should be on second screen. Of course user can have monitors of diffrent resolution so it may not work in every case.
And you can also check the width and position of the browser as it may help to identify where current monitor ends.
That's just the idea ofcourse, I never tested it.
Related
I take several photos using iPad. I take them in different orientations (rotate iPad every time on 90 degrees).
Then I download them to my Windows laptop and what I see? I don't see them as I saw them on the screen of iPad. Actually, there is only one valid image. Others are rotated.
I found this problem in browser (FF & Chrome). When you display image using img html tag it is rotated. But if you display it by entering image's full URL - it's totally OK.
I checked pictures via Safari on iPad - they look fine (in img tag), but don't in Windows.
Is there some metadata which shows that image should be rotated or smth like this?
As you know, the iPad has a hardware device in it that tells it the device orientation, which is how it determines how to display the screen to the user. While the hardware instantly knows how it's positioned at any given time, they seem to have engineered a lag into the software registering this change to improve the user experience (so the screen doesn't flip back and forth several times in a single second). However, this lag might lead to some unexpected results when taking a photo.
I have found that the orientation is most often unexpected with the iPhone / iPad when I am taking photos with my screen facing downward (i.e. taking a picture of something on a tabletop, for example). I assume landscape but get portrait, and vice versa. In that scenario (downward / flat), it is more difficult for the device to know what my intended orientation is.
I find the best way to resolve this is to hold the device in the clear orientation that I want for a second before I take the photo, then point the camera downward and snap.
The orientation data is included in an image's metadata (AKA exif data). You can take a look here for more information:
http://www.daveperrett.com/articles/2012/07/28/exif-orientation-handling-is-a-ghetto/
It is relatively easy to retrieve (and modify) the exif data in software. If you are doing lots of batch processing in some type of custom way, libraries are available to help with this for a variety of frameworks. But for small jobs, the absolute most simple way is to click the little "rotate" icon in the image viewer software within Windows which will make the update for you.
Some Mobile website with Retina-ready using twice the size of image to get finer quality,
and using the original size of image in PC.
I don't understand why don't directly use twice the size of image in every device,
because Computers isn't so urgent need to save network traffic.
Prepare two different sizes of the picture is too spend time....
It is a Blind Spot ? or I am wrong ?..
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Extra Content - 2013-07-10 :
The only questions is "they use original size image in PC, so why not just use twice size image in PC?"
it make same effect in Retina-ready, why PC need original size, PC didn't need ,right?
If I interpret your question correctly, the question is why don't websites use the same hi-res picture that they use for Retina displays on lower DPI monitors as well.
Then my reaction is, why should they?
A picture twice the size in pixels takes up four times the amount of bytes. That's not just bandwidth, but also memory in the client's computer
You don't gain anything in quality. If anything, the quality on screen decreases, if the browser's resize ability is not of the highest standard (read: if they optimise for speed rather than quality)
In addition, there are browsers that suffer a noticeable performance hit when you scroll up and down on a page with many resized images
Lastly, for the webdeveloper, creating smaller copies of the pictures before deploying them on the web server doesn't take up that much time. There are automated utilities that can do that, on the press of a button.
Background:
I am creating an application in Ms-Access that is to be launched on a multi-user platform - This means many screens and many different resolutions etc.
Question:
Is it possible to have my application that automatically adjusts to the right size of the screen/resolution and the font size to be proportional to that of the % increased or decreased?
Similar to my answer here, yes, you can use the On Resize event of a form to move controls around, change the size of subforms, and perform other similar operations. Those adjustments are applied to each individual object, so the coding would be somewhat tedious and a bit "fussy", but it can be done (at least to some extent).
The font size will not automatically change based on screen resolution in any version of Access, but starting with Microsoft Access 2007 you can use new properties of controls to make them stretch, shrink or move based on the size of a form (described here)
Try using the VBA code in this answer to see if it gives you what you want. It works basically the way that Gord Thompson recommended. When the form is resized, all the controls and the text on the form will be proportionally resized too so that it looks the same no matter what size the window is, or what the user has their monitor resolution set to.
I know you can fake full screen by expanding a window and eliminating the title bar , status bar , and other stuff, I'm not interested in this, I want to know about "real" full screen mode (I don't know how to call it else) , like in games.
what exactly is full screen mode?
what win-api should I use to achieve this?
can this be used to play movies in full screen ? I know windows media player uses a fake full screen because I can "cut" thru it and see the desktop (using regions win-api).
can I "cut" thru "real" full screen like I thru a window (using regions win-api) ore is this directly writing to video memory and there is nothing "under" it?
Thanks!
If you want to make games on Windows in full-screen, the best option is XNA. This uses DirectX underneath, but hides a lot of the implementation details and plumbing to make it easy for the developer to start working on his game.
XNA is freely downloadable, and has good documentation.
XNA Game Studio 4.0 can be downloaded here.
...and you might want to support the "fake" fullscreen mode in addition to "real" fullscreen - it's very nice for those of us that run multi-monitor systems.
If you don't want to use DirectX, create window and call ChangeDisplaySettings with CDS_FULLSCREEN flag. OpenGL applications use this way to go fullscreen.
As far as a user is concerned, full screen is just when a window takes up the entire screen such that they no longer see any window borders or other desktop stuff.
As you know, not all full screens are created equal.
'proper' full screen is where the program takes control of the screen. When a game uses this mode, it can change the resolution of you screen. If you have ever played an old game and existed to see your icons all messed up, this is; for the duration of playing the game, your desktop was at a lower resolution.
with 'borderless full screen' the program window is striped of any borders, the title bar and frame etc., and is just a rectangle of pure rendering. If you then set this rendering context to be the same size as your desktop, you get the effect of full screen.
Doing border-less is usually the more user friendly way these days, as it is easier to 'tab out' as the other programs are still graphically around. 'proper' full screen gives you full control of the hardware, so in theory you have more power for your program, but it means you have to wait for things to reinitialise when you tab out.
what you do with your rendering context is up to you, so yes, you can use it play videos. It would not matter if you are in 'proper' full screen or not, the rendering code would be the same.
As for cutting through proper full screen windows, I am not sure, but I think there would be nothing else to see, there is only your program.
as for what win-api, there is only one windows api, but I think you mean, what windowing library; as this is getting to be a long answer already, I shall just say it depends a lot on what you want from it.
Please feel free to leave comments if you need me to clarify or expand on any points.
I know that it is possible for a website to detect a user's screen dimensions in pixels, but is there a way to detect the physical size of a user's monitor (in inches)?
This is not always possible. Even the operating system might not know this information. In order to display properly on the screen the necessary information is the resolution that the monitor can display.
Think about using a projector. Depending on how far you place the projector away from the wall, the screen will become bigger or smaller. However, the computer will send the same picture to the projector. How would the software know about the distance to the wall and hence the size of the screen?
Not reliably.
Even monitors that believe to know their DPI - which isn't many - are often incorrect.
You could use EDID from the registry.
Please vote for this suggestion:
https://connect.microsoft.com/VisualStudio/feedback/details/526951/screen-object-physicalwidthincentimeters-physicalheightincentimeters-displaymode