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Capture screenshot of active window?

I am making a screen capturing application and everything is going fine. All I need to do is capture the active window and take a screenshot of this active window. Does anyone know how I can do this? ...
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Container-fluid vs .container

... Quick version: .container has one fixed width for each screen size in bootstrap (xs,sm,md,lg); .container-fluid expands to fill the available width. The difference between container and container-fluid comes from these lines of CSS: @media (min-width: 568px) { .container { ...
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Center a 'div' in the middle of the screen, even when the page is scrolled up or down?

...tton which when clicked displays a div (popup style) in the middle of my screen. 5 Answers ...
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How can I get a Dialog style activity window to fill the screen?

I am using an activity with the dialog theme set, and I want it to be full screen. I tried all sorts of things, even going through the WindowManager to expand the window to full width and height manually, but nothing works. ...
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What's the best way to detect a 'touch screen' device using JavaScript?

...ndered if there is a way with JavaScript to detect if the device has touch screen capability. I'm using jquery-mobile.js to detect the touch screen events and it works on iOS, Android etc., but I'd also like to write conditional statements based on whether the user's device has a touch screen. ...
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How do android screen coordinates work?

...on(Landscape/Portrait) To get MaxX and MaxY, read on. For Android device screen coordinates, below concept will work. Display mdisp = getWindowManager().getDefaultDisplay(); Point mdispSize = new Point(); mdisp.getSize(mdispSize); int maxX = mdispSize.x; int maxY = mdispSize.y; EDIT:- ** **fo...
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Android How to adjust layout in Full Screen Mode when softkeyboard is visible

...oblem comes when I use android:theme="@android:style/Theme.NoTitleBar.Fullscreen" this in my activity tag in manifest file. ...
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Adjusting the Xcode iPhone simulator scale and size [duplicate]

...simulator to actual (Physical) device's pixels, if your mac system display screen size (pixel) supports that much high resolution, else this option will remain disabled. Tip: rotate simulator ( ⌘ + ← or ⌘ + → ), if Pixel Accurate is disabled. It may be enabled (if it fits to screen) in la...
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Why em instead of px?

...ue to rounding it makes the most sense to use px units for the majority of screens. All absolute measurements are rigidly related to each other; that is, 1in is always 96px, just as 1in is always 72pt. (Note that 1in is almost never actually a physical inch when talking about screen-based media). ...
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Using HTML5/Canvas/JavaScript to take in-browser screenshots

..."Feedback Tool" lets you select an area of your browser window to create a screenshot that is submitted with your feedback about a bug. ...