Change icons position on the desktop in gnome 3/nautilus in a programmatically way - gnome-3

Is there a programmatically way to set icons position on the desktop in gnome 3/nautilus?
Thanks

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Custom device frame in Chrome Dev Tools

I'm developing a webapp which will be used on an embedded touch screen device. The screen is 854x480.
I created a custom emulated device in Chrome Dev Tools using that resolution. Is it possible to also add a custom device frame border? Some default devices have a frame border, for example the "Nest Hub". I'd like to add my own device border as a jpg or png. Is that doable?
This was possible in the past. I have not found any solution for it in the last 20-30 chrome releases. It appears the custom background is no longer an option.

Missing icon on windows store

In some application icon on store windows disappear, only gray background are shown (as shown in this link: https://drive.google.com/open?id=0B4oRSWSS0hKDOVZNNjhRNlR1LUk)
Whereas once downloaded and installed, the start screen wide screen (310x150) and other icons can be displayed in windows 8.1.
Icon that I use: https://drive.google.com/open?id=0B4oRSWSS0hKDNlNaQ290b3RmTE0
How to handle it?
I also had a problem where inside Windows Store, empty gray logo was displayed instead of the one I set inside App Manifest as a wide logo. Gray logo was only visible inside the Store, but once downloaded and pinned to the start, wide logo was displayed without problems. I also noticed problems were only inside Store on Surface 1, but not on PCs and Surface 3.
The solutions seems to be to set images for all scales. So open Package.appxmanifest > Visual Assets > Wide 310x150 Logo and under Scaled Assets, set all four sizes. Then you have to create new App Package and update your submission with it on Windows Dev Center.
Hopefully this works for you as well.
I had the same problem on the Windows Store on Windows Phone 8.1. It had nothing to do with the Package.appxmanifest > Visual Assets, since all the icons were filled and uploaded. Solution: When submitting the app to the Store, go to Description > App Tile Icon for Windows Phone 8.1 and upload a 300x300 icon.

Set start screen and desktop wallpaper in WinRT

In WinRT you can set the lock screen image using:
LockScreen.SetImageFileAsync(file);
Is there a way to also set the start screen image and desktop wallpaper?
No, Windows Store apps do not have access to set the start screen image or desktop wallpaper.

How to use Image slider in windows phone 8

I have tried image slider in windows phone.it does not work.
I want to slide images like jquery image slider one by one.Please help i have no idea.
Hope you can do that by using gesture service in Windows Phone for More about that go through this Link how to get swipe in windows phone

Different picture format - Image Viewer - WP8

I got pictures in the isolated storage and i want to display them as well as the WINDOWS PHONE APP does.
I would like to reproduce the same effect that the Windows phone app does when you open the camera roll and you scroll through the images..
I find it particularly difficult because of the image orientation (horizontal and the vertical ones). I fit the vertical ones, but as soon as there are an horizontal picture any fit procedure fails!
Example?
thank you
Take a look at the MediaViewer class in the Silverlight Basic Lens sample. http://code.msdn.microsoft.com/wpapps/Basic-Lens-sample-359fda1b