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NGINX to reverse proxy websockets AND enable SSL (wss://)?

...s on the release 1.3.13. Example of use: location /websocket/ { proxy_pass ​http://backend_host; proxy_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; proxy_read_timeout 86400; } You can also check the nginx changelog and th...
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Environment variable to control java.io.tmpdir?

... there's a way to do this other than on Windows. On Windows, OpenJDK's get_temp_directory() function makes a Win32 API call to GetTempPath(); this is how on Windows, Java reflects the value of the TMP environment variable. On Linux and Solaris, the same get_temp_directory() functions return a stat...
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Adding placeholder text to textbox

...der text it is possible to use the Windows SendMessage function to send EM_SETCUEBANNER message to our textbox to do the work for us. This can be done with two easy steps. First we need to expose the Windows SendMessage function. private const int EM_SETCUEBANNER = 0x1501; [DllImport("user32.dll...
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How to fix the flickering in User controls

...Params cp = base.CreateParams; cp.ExStyle |= 0x02000000; // Turn on WS_EX_COMPOSITED return cp; } } There are many things you can do to improve painting speed, to the point that the flicker isn't noticeable anymore. Start by tackling the BackgroundImage. They can be really expensive ...
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JComboBox Selection Change Listener?

....setBounds(84, 45, 150, 20); contentPane.add(comboBox); JComboBox comboBox_1 = new JComboBox(); comboBox_1.setBounds(84, 97, 150, 20); contentPane.add(comboBox_1); comboBox.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent arg0) { //Do Something } }); ...
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Static variables in JavaScript

...cut, you could just do countMyself.counter = countMyself.counter || initial_value; if the static variable is never going to be falsey (false, 0, null, or empty string) – Kip Sep 23 '11 at 17:25 ...
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Android ViewPager - Show preview of page on left and right

...em visible val nextItemVisiblePx = resources.getDimension(R.dimen.viewpager_next_item_visible) val currentItemHorizontalMarginPx = resources.getDimension(R.dimen.viewpager_current_item_horizontal_margin) val pageTranslationX = nextItemVisiblePx + currentItemHorizontalMarginPx val pageTransformer = V...
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Animate change of view controllers without using navigation controller stack, subviews or modal cont

...iewController{ [self addChildViewController:aNewViewController]; __weak __block ViewController *weakSelf=self; [self transitionFromViewController:self.currentViewController toViewController:aNewViewController duration:1.0 ...
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MongoDB with redis

... result of that query. So maybe we are looking up a bunch of blogposts by _id. So maybe the keys in here are the _id of the records we have looked up before. So lets imagine that mongoose issues a new query where it tries to find a blogpost with _id of 123, the query flows into the cache server, ...
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Fastest way to extract frames using ffmpeg?

... video 38m07s long: time ffmpeg -i input.mp4 -filter:v fps=fps=1/60 ffmpeg_%0d.bmp 1m36.029s This takes long because ffmpeg parses the entire video file to get the desired frames. time for i in {0..39} ; do ffmpeg -accurate_seek -ss `echo $i*60.0 | bc` -i input.mp4 -frames:v 1 period_down_$i....