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• Intuitive "Take Screenshot" key mapping used by games?

  - by Hatoru Hansou

  I recently had a problem testing my game on Linux Ubuntu. The Print key is intercepted by the desktop environment and It never reaches the game. Rather than fighting this, I will simply use any other key or key combination to trigger the screen capture functionality. Now, using the PRINT key is very intuitive because people already expect this behavior. What other keys are a good idea to use to take screenshots? And if possible elaborate why, have other apps/games used that key?

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• Is there a language that allows this syntax: add(elements)at(index);

  - by c_maker

  Does a language exist with such a syntax? If not, what are some of the limitations/disadvantages to this syntax in case I want to write a language that supported it? Some examples: sort(array, fromIndex, toIndex); vs sort(array)from(index1)to(index2); Method signature would like this: sort(SomeType[] arr)from(int begin)to(int end){ ... } Update: Because there might be some confusion, I'd like to clarify... I meant this question as a general idea like this (not specific to sorting and possibly using keywords like from and to): In JAVA(like language): void myfancymethod(int arg1, String arg2){ ... } myfancymethod(1, "foo"); In imaginary language: void my(int arg1)fancy(String arg2)method{ ... } my(1)fancy("foo")method;

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• How can I disable as much "flair" as possible in Unity?

  - by UlfR

  I'm running Ubuntu 11.10 from a fresh install on a somewhat aged computer, so I have some speed problems. But since I do want to use the new cool way to work with things that Unity introduces I do not want to fiddle with getting another desktop environment. My idea is to disable as much flair as possible, but there are tonnes of options that I do not understand or have the time to read up on when I launch CompizConfig Settings Manager. Which of these could safely be disabled? Are there other places where performance could be gained by disabling things? So how can I make the whole thing a little more snappy?

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• Java Extends value not updating

  - by James116

  I am currently working on a hibernate project(EJB and JSF), and i have multiple java classes. The data of parent is being change in the front end with JSF, however, it is not updating in the child class. Any idea as to what could be causing this? This is what i was doing. public class parent{ private String x = "UNKNOWN"; //Getters and setters public getX(){ } } public class child extends parent{ public string y{ //this is return UNKNOWN //instead of the new value being change by the user System.out.print(getX()); } } Thanks in advance

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• Drop in rankings after removing sitewide backlinks

  - by user319940

  Here's the scenario: I have a small web design business and was using a branded backlink on the bottom of all client sites. Recently this has become a bit taboo with the Google updates so I went back to a few of my sites and made it so there's only a homepage backlink. After doing this, I've had a drop in rankings, despite this apparently being a best practice. Is this likely a temporary drop that will pick back up? For any new sites, I still want to have a link on all pages of client sites as it's good advertising. I plan to have a do-follow homepage link and then no-follow every other link - is this a good idea?

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• Application window as polygon texture?

  - by nekome

  Is there a way, or method, to have some application rendered as texture in 3D scene on some polygon, and also have full interactivity with it? I'm talking about Windows platform, and maybe OpenGL but I guess it doesn't matter is it OGL or DX. For example: I run Calculator using WINAPI functions (preferably hidden, not showing on desktop) and I want to render it inside 3D scene on some polygon but still be able to type or click buttons and have it respond. My idea to realize this is to have WINAPI take screenshot (or render it to memory if possible) of that Calculator and pass it to OpenGL as texture for each frame (I'm experimenting with SDL through pygame) and for mouse interactivity to use coordination translation and calculate where on application window it would act, and then use WINAPI functions such as SetCursorPos to set cursor ant others to simulate click or something else. I haven't found any tutorials with topic similar to this one. Am I on a right track? Is there better way to do this if possible at all?

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• C# .NET 4.0 interactive course?

  - by Kanyhalos

  I would like to learn C# programming. I already studied it for several weeks and wrote some minor programs with VS2010, and I'm not completely newbie at programming because I worked on STALKER - Shadow of Chernobyl as scripter, but it was LUA. I want to become a real programmer. I think C# is a decent way to start with. I already learned about the most commonly used resource sites and got some nice eBooks as well, but unfortunately I don't have time to sit down in front my computer all the time, so my progress is pretty slow. I would like to ask that if someone can recommend me some decent interactive online courses to make my learning progress faster. I know about the "joe grip" course but I don't know if it's worth $39 also it's only for .NET 1.x and 2.0 while I'd like to learn 4.0 so I have no idea what should I do.

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• Does a large (hidden) submenu count towards site content in tems of determining page similarities?

  - by Name

  Basically, I have this site that recently lost a lot of traffic after I optimized the html, the exact reasons to which are uncertain. The graph of impressions (times a page appears on search listings) is continuously going down like an e^-x function. Because the content, previously occupying five pages of tables, now fits within a few paragraph tags, the menu now occupies about 80% of the live html code and I am starting to have doubts wherether this affects the "similar pages" factor that Google punishes. Questions: As far as I know, Google ignores invisible material and the submenus are only visible when hovered over. Has anything at all changed in this area? If I ajax in the submenus, leaving only the main eight menu items to load, will I be punished for "hiding" information? Is the idea worth testing or is it frankly retarded?

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• Monitor resolution can't be saved

  - by Iztok

  Today I installed Lubuntu 13.10 on Vmware Player (inside Windows). I change the Monitor setting (resolution) from default 800x600 to 1680x1050. It works. Beside Apply, I also press Save button. "Changes are saved" appears. But - after restart, the resolution is again in 800x600. I also opened /etc/xdg/lxsession/Lubuntu/autostart and add (it was empty before) one line: @xrandr --mode 1680x1050 After restart the default resolution is back again. Any idea?

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• Road to advanced Programming [closed]

  - by Srivalli Chitrapu

  I am currently working as an SDET(Software devlopment Engineer in Test). I have been doing some programming in C# as my job needs. I want to expand my knowledge and experience by creating some simple tools and applications of my own. Consider this like academic projects that are created by students at the end of their course . The idea is to have a practical knowledge on the subjects that I have a theoritical knowledge about. For Eg - I have read about multithreading and have worked on the examples but I do not have a grip over the concepts. In order to get a good grip over the concepts I want to work over some projects involving multithreading, starting with a simple one. Similarly other concepts like REST/SOAP web services using WCF. How should I design a curriculum for my self to go about learning these concepts/ technologies and creating some projects of my own. Thanks, Srivalli

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• eth0 missing after upgrading from Hoary to Dapper

  - by Twisol

  I'm trying to upgrade a fairly old server that's been running Hoary for the last five years. I followed the directions on the wiki, but when I restarted after upgrading to Dapper, eth0 disappeared from ifconfig -a. I can see two ethernet adapters in lspci and lshw, and if I put in an Ubuntu 10.10 LiveCD it registers eth0 and eth1 perfectly well. Their MAC addresses also match what's in /etc/iftab. It was working fine before the upgrade, and I have no idea what else I should be trying at this point. The server is entirely cut off from the network right now. EDIT: /etc/udev/rules.d/70-persistent-net.rules doesn't exist, either.

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• Need to add 30K new pages to a 10K page website - troubles ahead? (SEO)

  - by Jurga

  We have a situation with a website where we plan to add a huge amount of new pages. The domain is over 10 years old, approximately 10 thousand indexed pages, and the planned addition is approx. 30K new pages. Any idea how we should go about it? Must we schedule a gradual data release? Have you heard of any industry standards as to how many new pages per day / week / month should be added in order to appear natural and not get in trouble with Google? I.e. should we plan a bi-weekly addition of 5K?

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• Display settings problems with Ubuntu 14.04 LTS

  - by DontUSASme

  For whatever reason (this was working correctly on Ubuntu 12.04 LTS) when I try to set my displays on top of each other in the settings, it won't allow to place them on top of each other. When I click "apply" I get the error message "Could Not Set Configuration Mode for CRTC 63." Can anybody help me with this? It wont let me set the two displays on top of each other, but it will allow me to place them side to side. Also, I get a random "Unknown display" as well. This was not existent in 12.04 LTS and I have no idea what it is, seeing as how the only screens that are in use, or plugged up for that matter, is my laptop's display (1366x768) and my Samsung TV display (1360x768) thru HDMI.

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• How to measure his own skill in a programming language? [closed]

  - by lollancf37

  Possible Duplicate: How Can I Know Whether I Am a Good Programmer? As many programmers I have worked in several languages. While of course there are some that I am more at ease than other, I do not have a real way to precisely measure my skill in a specific language. So I thought of a system which allows me to help me with that. I am looking for 5 common criteria in programming languages, to which I will have a value from 1 (junior) to 4 ( Senior) to represent my skill. I however have no real idea of the criteria I should choose for that. Does anybody have suggestion ? Thanks.

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• -ln links to wrong file

  - by user289075

  I've just installed matlab and want to be able to call it from the terminal. It works fine when I explicitly call it from its directory. I cd to /usr/local/bin and type sudo ln -s /usr/local/MATLAB/R2012a/bin/matlab matlab when I then type "matlab" in the terminal, I get the error message "bash: /media/OS/MATLAB/bin/matlab: No such file or directory" I have no idea why it's trying to call matlab from /media. I've tried deleting the file from usr/local/bin but when I create it again the same thing happens. Any help would be very much appreciated.

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• 12.04 to 12.10 upgrade failure

  - by Toscano

  In upgrading 12.04 to 12.10 via system upgrade when the system rebooted all I got was my desk-top without any command icons. Now all my files are locked into 12.10 and no way to retrieve them. I finally reinstalled 12.04 in a new partition but I don't have the knowledge on how to access 12.10 from it. Being a newbie with Linux I feel like I have all thumbs. I'd like to correct 12.10 but have to idea on what the problem is or how to access it. HELP!!!

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• Wine not working in 12.04?

  - by Thunderbug

  I updated to Ubuntu 12.04 by doing a clean install from a CD. I installed Wine, Q4wine, WineTricks, PlayOnLinux all from the Software Center. After installing Kindle For PC(I ran it in 11.10 as well) Wine doesn't open it. Then I tried to install a game (Eastside Hockey Manager 2007) that I have had Installed on all my previous versions of Ubuntu, again Wine returned an error saying that the installer GUI would not load. So far I'm lost as to why this is happening. Does anyone have an idea?

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• Implementation ideas to store multiple files within a single file for faster access?

  - by eminemence

  My requirement is to store a large number of files within a single file.The files stored could be anything like images, videos or simple text files as well. I want some ideas to implement the same. I am thinking of implementing a file system within a file, but am not sure if its a good idea. The main area of concern here is the access time. Also I want to provide encryption for this single file. Any suggestions are welcome.

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• Connecting 2 PCs using USB-to-USB (male-male) cable

  - by Amirizzuan

  I found this while Googling around: http://www.hardwaresecrets.com/article/Connecting-Two-PCs-Using-a-USB-USB-Cable/248 But then, the solution given in the article is using Windows. Is there any Ubuntu equivalent to this? I would really love to SSH into my Ubuntu server via my Ubuntu laptop, just by connecting one end of the male USB to my laptop, and another end of the male USB to my server. I know I can always SSH into my server via the network, but then in this case of mine, there are cases the server is inside a secluded-secured network server room, and the only way for me to check things out is to go into the server room and open the keyboard console and monitor there. But, if I can just bring my laptop inside and connect to the USB there, then that would be cool. Any idea guys?

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• IPC (inter-process communication) server to connect different runtimes

  - by wvxvw

  Couple days ago I've spoken to someone who mentioned a server product that has as its main goal the ability to create inter-runtime layer that allows sharing in-memory object between different languages. The person also described the process of creating such layer as defining a number of structs in a special way such that different languages which access the objects would have the same idea of what the data they access looks like. Unfortunately, I forgot what this product is called, and Google didn't help me finding it so far. Would you happen to know what he was talking about?

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• Private downloads [on hold]

  - by user1314836

  I am setting up a personal website and I would like to be able to share certain files with friends (e.g. photo albums or documents). Of course, each of the files should only be accessible to certain people, for example with a password or a private address. I would like to have a simple system, easy to maintain. I'm quite sure that Wordpress would let me know do something but keeping a Wordpress installation just for sharing a few files per month seems too much work. I am thinking of using the Apache capabilities for folder or file password protecting. Is this the best idea? Or would it be better just to block the directory navigation so that only people with the full path for each of the files can download them? Thanks!

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• Can't boot after disk error 12.10

  - by user1189907

  Lately, I've been having Ubuntu crashing randomly.. it goes into read only mode, but once I restart it's working again. Today it happened again and I had to manually shut the computer down. Now I'm not able to boot anymore. I get the following when turning the computer on: error: unknown filesystem And I'm left at "grub rescue". I booted from the Live CD and installed "boot-repair". When I run it it says "no os has been found on this computer", it gives me no option to carry out any fixes. Boot Repair generated the following output which shows some errors: http://paste.ubuntu.com/1348224/ Any idea on how to fix this?

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• How can I copy a file from one partition to another?

  - by user111095

  I started with linux a year ago. Few weeks ago it was my idea to install the efi stubloader. I used an LiveCd to freshly install ubuntu 12.10, and studied the articles of www.rodsbooks.com inside out. The problem I am facing is that few files need to be copied from sda2 (Ext) to sda1 (fat32). Silly, that should not be difficullt, but I can not find a way to do it...(in a way I understand it)? Anyboddy? If you have installed a EFI stubloader with reFind or efibootmgr,...please help me.

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• Windows not shown in Grub after installing 12.10

  - by rowanquigley

  I just installed 12.10 alongside Windows 7. I split my partition into two because disk reader during the installation didn't recognize Windows 7 as being installed on the computer. It installed correctly and I restarted only to find out it wasn't recognized in Grub also and booted straight to Ubuntu. I read this post and thought of using boot-repair would be fine but I gain this error: gpt detected. Please create bios-boot partition (>1MB, unformed filesystem, bios_grub flag). This can be performed via tools such as Gparted. Then try again. I've no idea what it means or what to do next. Suggestions would be appreciated and I have lost my Windows installation disk and I really don't want to have to go looking for it.

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• Advise how to write a simple test for this javascript snippet?

  - by resting

  I'm trying to start unit testing (not using any testing frameworks) for my javascripts. Here's one example of it. var obj = {}; obj.disableBtn = function ($btn, style) { $btn.attr('disabled','disabled').addClass('disabled').removeClass(style); }; The use case is as such: obj.disableBtn($('.submit'), 'btn-blue'); What it does is simply add the disabled attribute, add the disabled class, and remove the btn-blue style. Please advise how would a typical test case look like in this case. I have a little knowledge on testing using assert(), but have no idea how to go about it when it involves verifying the result on HTML elements.

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