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• Windows move to external monitor when closing lid

  - by Martijn

  I'm using Cinnamon (on 12.10) on a laptop (Compaq 6710b business model) with an external monitor. Both screens run at 1680 x 1050, the external monitor is located on the right. During normal operation everything works fine; windows open in whatever monitor my mouse pointer is when they open and I can freely drag them to the other monitor. When I close the lid of my laptop both displays shut down as expected. When I open the lid, however, the lock window opens on the external monitor and any windows that were open on the laptop screen have moved to the external monitor as well. Nothing happens between closing the lid and opening it; no suspend, powerdown, hibernate or anything, monitor stays attached; even mouse is untouched (pointer on laptop screen). Is there any way to fix it so my windows stay on whatever monitor I left them before closing the lid? Alternative solutions are welcome.

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• Cooking with Expression: HTML 5 Video for All

  - by David Wesst

  Happy new year everyone! I hope you enjoy the first new episode of 2011. --- In today’s episode we will be cooking up some HTML 5 video. This recipe will let you deliver videos to your users using browsers that support HTML 5, and even handle those who have not made the jump to the latest and greatest browsers. Feel free to leave comments on the page. Feedback is always welcome. Cooking with Expression - HTML 5 Video for All from David Wesst on Vimeo.

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• can I read exactly one UDP packet off a socket?

  - by Brian Palmer

  Using UNIX socket APIs on Linux, is there any way to guarantee that I read one UDP packet, and only one UDP packet? I'm currently reading packets off a non-blocking socket using recvmsg, with a buffer size a little larger than the MTU of our internal network. This should ensure that I can always receive the full UDP packet, but I'm not sure I can guarantee that I'll never receive more than one packet per recvmsg call, if the packets are small. The recvmsg man pages reference the MSG_WAITALL option, which attempts to wait until the buffer is filled. We're not using this, so does that imply that recvmsg will always return after one datagram is read? Is there any way to guarantee this? Ideally I'd like a cross-UNIX solution, but if that doesn't exist is there something Linux specific?

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• TypeScript Resources

  - by csmith18119

  TypeScript looks like a great start to evolving javascript.  I am going to start playing with it seeing what it is like.  This is the post I will update will all the resources I've found. Welcome to TypeScript - The TypeScript Language has an offical site, and this is it. This site does a nice job of giving the key information about the language and its uses, as well as highlighting that it is an open source project, which is cross platform. TypeScript is still causing quite a buzz in the community, here are some more of peoples initial impressions: Introducing TypeScript - Rob Eisenberg Why does TypeScript have to be the answer to anything? - Scott Hanselman TypeScript (or the obligatory post about it) - Shawn Wildermuth TypeScript project in Visual Studio 2012 - Linvi Microsoft TypeScript : A quick introduction and A Love Affair Begins here. - Anoop Madhusudanan Microsoft TypeScript : A Typed Superset of JavaScript & Using TypeScript in ASP.NET MVC Projects - Shiju Varghese Hello TypeScript - Getting Started - Sumit Maitra

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• The Big Announcement, This Year, at Devoxx 2011!

  - by Yolande

  Stephan Janssen started the developer conference with his traditional "Welcome and Announcements" and this year announced Devoxx France, the new and only Devoxx conference outside of Belgium. It will take place in Paris, April 18 to 20, 2012. The Paris Java user group is organizing the 3 day conference. The conference is designed after Devoxx with Tools in Action, Labs, BOFs and Quickies and with one university day and 2 conference days. The model works well since Stephan turns down attendees every year. The content will be 75% in French and 25% in English. Call for papers opened today. Oracle will be a sponsor the event! 

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• Project Euler 6: (Iron)Python

  - by Ben Griswold

  In my attempt to learn (Iron)Python out in the open, here’s my solution for Project Euler Problem 6.  As always, any feedback is welcome. # Euler 6 # http://projecteuler.net/index.php?section=problems&id=6 # Find the difference between the sum of the squares of # the first one hundred natural numbers and the square # of the sum. import time start = time.time() square_of_sums = sum(range(1,101)) ** 2 sum_of_squares = reduce(lambda agg, i: agg+i**2, range(1,101)) print square_of_sums - sum_of_squares print "Elapsed Time:", (time.time() - start) * 1000, "millisecs" a=raw_input('Press return to continue')

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• SQL Split function.

  - by Wardy

  Hi guys, I'm looking for a way to do this ... SELECT FirstName, LastName, Split(AddressBlock, ' ', 1), Split(AddressBlock, ' ', 2), PostCode FROM Contacts The arguments I want to pass are ... The address The separator (current situation requires 2 spaces but this might be a comma or a space followed by a comma) or something else (it varies). The address part I want to return (i don't always need all parts of the split result). I seem to be able to find a few examples of splitting functions about the internet but they return a table containing the entire set of split parts. My SQL skills aren't that great so I need the answer to be ultra simple. I'm always working with nvarchar data and the function needs to be reusable.

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• Can I force window to open on top of other windows when opened by keyboard shortcut?

  - by Rasmus

  I use SpaceFM as my primary file manager on Ubuntu. I typically open folder directly by keyboard shortcuts, so, e.g. Ctrl+Super+W opens my Work folder. Specifically, I use execute the command spacefm -w /home/rasmus/Work/ by the above shortcut, with the -w ensuring that SpaceFM opens a new window. However, this new window is not always open on top of the last active window on the workspace. This is rather annoying, as it means I sometimes have to "dig" for the newly opened window. So, my question is: Is there something additional I can add to the executed command that will ensure that the fresh window is opened on top? Alternative solutions to the same effect are welcome.

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• Playing repeated sound in Java

  - by Diogo Schneider

  I'm trying to play sounds in a Java game with the following code: AudioStream audioStream = new AudioStream(stream); AudioPlayer.player.start(audioStream); The stream variable is just an InputStream to the resource. By the first time this code is called, the sound is played as expected, but by the second time the program just hangs, not even an exception is thrown. I don't know what's going on or how to prevent this. If I try closing either stream or audioStream after the above code, the program doesn't hang, but no sound is ever played at all. Any tips are welcome, thanks.

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• Can someone recommend an appriopriate drawing tablet that fits my needs?

  - by Syg

  I'm looking for something that can help me to easily create small hand drawn graphics and mock-ups digitalize technical drawings I would normally draw on a whiteboard. I'm a developer, not a designer, so it doesn't have to be high-end I guess. Just something to help make it easier, more fun and more productive to quickly draw mockups etc. After a quick search I landed on the wacom site, but it's hard for me to tell the difference between the offerings never having used something like this. Is small too small? is it annoying? Other suggestion are also welcome ofcourse. Thanx for any help you can give me

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• correlated query /subquery VS join query

  - by trojanwarrior3000

  can we always convert a usual subquery/correlated subquery to join type query?

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• Learning the base for programming in C

  - by Baltazar Blake

  it's been a while since I think about starting to programming in C and after that to learn programming in C# and I search a lot on google but couldn't find a good guide to start learning base programming in C .However I found that Eclipe integrates very good with Ubuntu and it's a good programming environment for starting to program in C but somebody can give please some links with guides or tell me where can I find the bases for starting to program in C ,and I mean good base because I found a lot of incomplete guides over google ? And if I don't ask to much please give some tips of how to start and how to use Eclipse.Every help will be welcome ,thanks.

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• J2ME HTTPS Connection Problem: Certificate was issued by an unrecognized entity

  - by Mustafa

  I am developing a little J2ME application that will read our grades from our university's server. With Desktop Applications, It is fine, I can do it but in J2ME, it always gives me this error, even I use well-known services like HTTPS Google, I still get the same error. urlConn = (HttpsConnection) Connector.open("https://stars.bilkent.edu.tr/srs/ajax/login.php"); urlConn.setRequestMethod(HttpsConnection.POST); urlConn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded"); o = urlConn.openOutputStream(); // Sending my POST requests to server input = urlConn.openDataInputStream(); In the last line I always get the error I mentioned above. What should I do about it?

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• Java webapp: where/how to automatically set each picture's width/height

  - by NoozNooz42

  For several reasons, a lot of "webmaster guides" (like Google and Yahoo!'s webmaster guides/guidelines) repeats several times that it is better to always put the width and height attribute of the img tag. One of the most obvious reason is that the elements in the page won't seem to be "jumping around" to a new location after every picture is loaded (always setting the correct width/height sure gets rid of this behavior). And there are other reasons to follow these guidelines / best practices. So: if we consider that these are indeed good practices if there are a lot of pictures and they are changing often if pictures aren't changing between two .war re-deploy (that is: there's no user-contributed picture) if we don't want to manually edit all these width/height attributes How do we automatically/programmatically serve HTML pages where every img tag have their width/height attribute correctly set as the best practice recommend?

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• Django admin interface upload failing on request data read error

  - by Jake

  Hi All, This is an updated version of an old question I asked. I've now done a lot more testing, plus the old question got hijacked. I'm getting a request data read error when trying to upload files to the Django admin interface. Files under about 150k work, but bigger files always fail and almost always at around 192k (that's 3 chunks) completed, sometimes at around 160k. The Exception I get is below. File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 405, in read return self._file.read(num_bytes) IOError: request data read error I've tried Chrome and Firefox on Windows and Firefox on Mac - Same results. I can upload to other sites so I don't think it's my connection. I'm running python 2.4, django 1.1, mod_wsgi, on CentOS (a media temple DV server) Locally it's fine (Django development server) Everything I've found on this issue says it's a mod_python issue and that changing to mod_wsgi will fix it, but I am running mod_wsgi. Can anyone help?

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• Is strftime (hour) showing wrong time?

  - by ander163

  I'm using this line to get the beginning time of the first day of the month. t = Time.now.to_date.beginning_of_month.beginning_of_day When i display this using t.strftime("%A %b %e @ %l:%m %p") it shows: Monday Feb 1 @ 12:02 AM The hour is always 12 (instead of 00), and more wierd the minute changes to match the month in integers. For the February date, it shows 12:02 AM I use .prior_month and .next_month on the variable to move forward or backwards in time. So when I move to June, this would display as Tuesday June 1 @ 12:06 AM But when I just show the value of "t" using a straight t.to_s, I get this time of 00:00:00, which is what I expect: Mon Feb 01 00:00:00 -0700 2010 A similar error occurs using end_of_day, but the hour is always 11 PM and the minute is the same integer value that matches the month in integers, i.e the time is 11:06 PM in June, 11:02 PM in February. Qurky? Admittedly a noob to Rails. Thanks for any comments or explanations.

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• Speaking at AMD Fusion conference

  - by Daniel Moth

  Next Wednesday at 2pm I will be presenting a session at the AMD Fusion developer summit in Bellevue, Washington State. For more on this conference please visit the official website. If you filter the catalog by 'Speaker Last Name' to "Moth", you'll find my talk. For your convenience, below is the title and abstract Blazing-fast code using GPUs and more, with Microsoft Visual C++ To get full performance out of mainstream hardware, high-performance code needs to harness, not only multi-core CPUs, but also GPUs (whether discrete cards or integrated in the processor) and other compute accelerators to achieve orders-of-magnitude speed-up for data parallel algorithms. How can you as a C++ developer fully utilize all that heterogeneous hardware from your Visual Studio environment? How can your code benefit from this tremendous performance boost without sacrificing your developer productivity or the portability of your solution? The answers will be presented in this session that introduces a new technology from Microsoft. Hope to see many of you there! Comments about this post welcome at the original blog.

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• Getting started with the G1 Garbage Collector

  - by mikew_co

  Just before the Thanksgiving break I finished up my second Oracle by Example (OBE) course on garbage collection. This one is on the new G1 garbage available in Java 7. It provides and introduction and overview of this newly available collector. Here is the link to the course: Getting Started with the G1 Garbage Collector This is a follow up to this OBE on the basics of garbage collection. Garbage Collection Basics The OBE is based on the presentation given by Charlie Hunt and Monica Beckwith at this years Java One. Hopefully I have done justice to there most excellent session. As always, feedback and comments are welcome.

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• jqueryForm and empty uploads

  - by Aiden Bell

  Hi All, Been scratching my head for too long on this: Using jquery.form, (http://malsup.com/jquery/form) with PHP ... my $_FILES['someimage'] gets set but the error number is always UPLOAD_ERR_NO_FILE, size is also 0. The JavaScript: $('form input[type=file]').change(function(){ $(this).clone().appendTo('#imgform'); $('#imgform').ajaxForm(); $('#imgform').ajaxSubmit( { type:'POST' } ); }); Which appends to: <form id="imgform" method="POST" action="/api/images.php" enctype="multipart/form-data"></form> From another form which has bog-standard file inputs. PHP logs are clean, but var_dumping $_FILES always shows that the index is set to the name of the form element ... but no data. Thanks guys! (Sorry, I know jQuery-like questions are too frequent round these parts).

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• Choose at GRUB menu whether NVidia driver should be used

  - by RobinJ

  For some games, I need the nvidia-current driver, but when it's enabled, I can't get my work done as it messes up everything. So is there a way I can get two options in my GRUB menu? One wich will load my operating system with the nvidia-current drivers, and one which will use the default non-proprietary one? It seems a bit stupid to me to have 2 Ubuntu installations (one for games, one for the rest). But I can't get my daily work done with the Nvidia drivers enabled as it messes up some applications, randomly freezes the system, etc. But I still want to be able to play some games. If there's a way to just load and unload the nvidia-current driver with a script or something, that would also be welcome.

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• GWT application throws an exception when run on Google Chrome with compiler output style set to 'OBF

  - by Elifarley

  I'd like to know if you guys have faced the same problem I'm facing, and how you are dealing with it. Sometimes, a small and harmless change in a Java class ensues strange errors at runtime. These errors only happen if BOTH conditions below are true: 2) the application is run on Google Chrome, and 1) the GWT JavaScript compiler output style is set to 'OBF'. So, running the application on Firefox or IE always works. Running with the output style set to 'pretty' or 'detailed' always works, even on Google Chrome. Here's an example of error message that I got: "((TypeError): Property 'top' of object [object DOMWindow] is not a function stack" And here's what I have: - GWT 1.5.3 - GXT 1.2.4 - Google Chrome 4 and 5 - Windows XP In order to get rid of this Heisenbug, I have to either deploy my application without obfuscation or endure a time-consuming trial-and-error process in which I re-implement the change in slightly different ways and re-run the application, until the GWT compiler is happy with my code. Would you have a better idea on how to avoid this?

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• Drawing Directed Acyclic Graphs: Minimizing edge crossing?

  - by Robert Fraser

  Laying out the verticies in a DAG in a tree form (i.e. verticies with no in-edges on top, verticies dependent only on those on the next level, etc.) is rather simple without graph drawing algorithms such as Efficient Sugimiya. However, is there a simple algorithm to do this that minimizes edge crossing? (For some graphs, it may be impossible to completely eliminate edge crossing.) A picture says a thousand words, so is there an algorithm that would suggest: instead of: EDIT: As the picture suggests, a vertex's inputs are always on top and outputs are always below, which is another barrier to just pasting in an existing layout algorithm.

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• Project Euler 20: (Iron)Python

  - by Ben Griswold

  In my attempt to learn (Iron)Python out in the open, here’s my solution for Project Euler Problem 20.  As always, any feedback is welcome. # Euler 20 # http://projecteuler.net/index.php?section=problems&id=20 # n! means n x (n - 1) x ... x 3 x 2 x 1 # Find the sum of digits in 100! import time start = time.time() def factorial(n): if n == 0: return 1 else: return n * factorial(n-1) print sum([int(i) for i in str(factorial(100))]) print "Elapsed Time:", (time.time() - start) * 1000, "millisecs" a=raw_input('Press return to continue')

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• Crystal Reports Legends

  - by AWinters

  Is there a way to force a Bar Chart legend in Crystal Report 11.5 to display its objects in a particular order? For Example, say I am reporting on the consumption of "Bananas" and "Apples" by State. The Bar Chart should display the percentage of people who eat these fruits by county (Percent Bar Chart). The "Apples" percentage always displays on top of the bar chart and the "Bananas" on the bottom. The legend for this graph also displays the "Apple" color first, then the "Banana" color. However, if the "Banana" percentage is 0% the legend displays the "Banana" color first on the legend. This creates a inconsistent report (with plenty of complaints). I would like the "Banana" color to always display second in the legend. Hope I didn't confuse anyone and any ideas would be helpful.

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• Online & Offline in Web Chat Application

  - by Mohammed Safeer

  I stuck amidst developing a chat web application using php for client side app. I used comet for chat application. And use technique of updating database when someone logout. Thus display offline on other side user. My problem is if someone close browser without logout, how the other side user know the person goes offline. How can i set online and offline icon in a php webchat application, when someone close chat window without logout? Is web sockets in php solve this problem? welcome all suggestions.

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