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• Does Dropbox use a cronjob to sync up?

  - by Yko

  I was looking into lipsync on a Dropbox clone. I was looking at the diagram on how it works here. It shows that a cronjob is used to keep files in sync between client and server. Does that mean that every sec/min/hour, a cronjob runs and checks to see if there is a difference between client and server? Is that how Dropbox does it? If it does use a cronjob, what happens when you are in the middle of syncing and another cronjob runs? Does rsync (or additional libs) know how to handle this?

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• How do I configure the mouse to raise and lower windows

  - by user288496

  I've just installed 14.04 and cannot find the congfuration screen to control how mouse clicks are acted on by the window manager, and then optionally passed to the application. I want to set the sane traditional unix behaviour of: - 'focus follows mouse': done. - 'never auto-raise': done. - 'raise when click on border or title': Can't find the option. A middle button click on the tile does lower a window - but traditionally it would also raise the botton window. I can set 'raise on any click' - but that is absolutely hopeless when you are trying to copy text from a lower window.

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• World orientation in OpenGLES clarification

  - by Dev2rights

  I have a 3d tile map made up of individual billboards in OpenGLES. Each is a 2 triangles mesh and has a 3D Vector to determine its position and another defining its rotation from the origin at (0,0,0). Im trying to work out how to rotate the entire tile map around a point be that the origin or some arbitrary point in space. Im guessing i need to set up a Model Matrix instead for each tile. Then set up a world matrix for the world. Then on updating i would translate the world matrix and change the orientation and multiply it with each model matrix before rendering. Is this correct ?

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• Gridview - Conditional Images

  This Gridview sample shows how to, for each row, based on other data within that row, to show a different image. We do this by creating a TemplateField, and putting an ASP.Net Image control within it, called 'Image1'. Then, inside the RowDataBound event of the Gridview, we put code, which first, checks and finds the Image control in that row, and then assigning a different JPG file to the ImageURL property of that image. One other thing here, you'll notice, is that when the criteria is matched, we set the Image control's Visible property to 'True'. That's because, one extra criteria is, that if the Units In Stock is larger than 80, we set the Image control's Visible property to 'False'. Naturally, since we're checking one particular column in the Gridview for this data, we're using a Select Case statement.

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• forwarding my domain to ning site, vs paying for mapping. SEO value? [closed]

  - by myf

  Possible Duplicate: Could I buy a domain name to increase traffic to my site like this? hello, and thanks for your time to answer. really appreciate that! my domain url is keyword stuffed (homes for sale and the city name). does it make a difference if I foward that to my ning site, which is www.homesforsale(in city name).ning.com or is it just the same for SEO / pagerank value as paying ning for the proper url mapping. thanks so much!

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• Error [9783] Support for cores revisions 0x17 and 0x18 disabled by module

  - by iamzarnywoop

  At start up after my dell BIOS load i get the puprle screen and then a black screen and this at the top "[9783] Support for cores revisions 0x17 and 0x18 disabled by module... " sorry i think there's more to it and that's probably crucial but it goes SO fast sometimes and sometimes slower... I just wiped my laptop and installed 13.10 over it and ticked LVM at installation and log in automatically, idk if that would make a difference here... Any way i found someone else on Arch Linux had the same problem but I don't know how to solve it. https://bbs.archlinux.org/viewtopic.php?id=170588 Anyone know what this might be? Please help, new user..

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• Boot prompt hyphens

  - by purjuntu

  Booting an Ubuntu DVD, pressing F6 and then ESC presents the boot prompt with the default kernel options, with the possibility of editing and adding extra options. Something like: kernel /casper/vmlinuz boot=casper quiet splash -- Questions: What's the meaning of the two hyphens? When adding an extra option (such as "toram" or "vga=791"), is there any difference between adding it BEFORE or AFTER the hyphens? When typing commands in Bash, two hyphens in a row means "options end here; anything that follows should be treated as an argument, even if it starts with a hyphen". But the hyphens must have another meaning at the boot prompt, as "toram" or "vga=791" really are options.

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• Long lines of text in source code [closed]

  - by ale

  Possible Duplicate: Is the 80 character limit still relevant in times of widescreen monitors? I used to set a vertical line set at 80 characters in my text editor and then I added carriage returns if the lines got too long. I later increased the value to 135 characters. I started using word wrap and not giving myself a limit but tried to keep lines short if I could because it took a lot of time shortening my lines. People at work use word wrap and don't give themselves a limit.. is this the correct way? What are you meant to do ? Many thanks.

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• Print to file in Black and White (but not in greyscale) [not printer specific]

  - by user2413

  Hi all, I have these pdf files of c++code and they are colored which would be cool, except that the network printer here is b&w and the printed out codes come in various shades of pale grey which makes them essentially unreadable (specially the comments). I would like everything (text, codes, commands,...) to be printed in the same (black) color. i've tried fuddling with the printer's properties, but the closest thing i see is the 'level of grey' tab, and there i have the choice between 'enhanced' and 'normal' (and it doesn't make a difference in my case). i've tried 'print to file', but i don't see any options there to print to b&w, I've tried installing the 'generic cups printer', but again no options to print to b&w. any idea ? (i'm on 10.10)

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• Content Weighting and Sociology

  - by Chris Massey

  I’ve had loads of fantastic feedback on the concept and early curation wireframes I posted on the labs, and it’s led to some further thoughts on the topic of voting. More specifically, thoughts about the kinds of behaviour and values a platform encourages in it’s users via the set of available actions. StackOverflow is a very good example of this kind of sociology in action, not only via the set of available actions, but through the reputation system it uses to both reward and control it’s users. In our case (specifically, in the case of the curation model I’ve been talking about thus far), the main considerations are how the quality of content is judged, and how to make sure each piece of curated content gets a fair hearing. Based on the feedback and conversations I’ve had with many of you over the last few days, a few considerations came to light about how we might need to weight and display our curations, and I’ve written about that more extensively over on the labs themselves – have a read and let me know what you think.

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• System doesn't boot due to a "[drm: drm_crtc_helper_set_config] * error * "

  - by Albin

  I have a problem with the new Ubuntu 12.10. It finished installing correctly, but when I restart my computer an error message appears: [15.854296] [drm: drm_crtc_helper_set_config] * error * failed to set mode on [CRTC: 10] * checking battery state [17.814209] [drm: drm_crtc_helper_set_config] * error * failed to set mode on [CRTC: 10] and that screen does not advance. I also tried booting from the recovery mode and it starts, but it's too slow loading windows and also shows me a window with an error message: Sorry Ubuntu 12.10 has experienced an internal error More Details: Executable path /usr/bin/xorg I have used Ubuntu since the 2008 version and never had this problem. I hope you can help me. Computer Specs: compaq sr2015la AMD sempron 2Gb. RAM 80Gb Hard Drive Translated from the original Spanish

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• Where can I get a definition of how the code is laid out in VB.NET 2010?

  - by ByteWorker

  I am just starting out learning Visual Basic 2010. I have books and videos. The books all seem to be written for people who have some programming experience, even the books that say they are for beginners. The videos were great until they started talking about variables. I got the basics of them but they started into complicated variables and I don’t see the need for them right away. Where can I go to see code for fairly intricate applications written out, with an over lay of definitions of which part of the code is a method as opposed to a class and so on? Also, I am working at a company that does not use SQL. So I need to use Access 2007 for all of my tables. Is there much of a difference to the coding?

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• How can I make Liferea to open links in the background?

  - by sup

  I have Opera set as my default browser but it is the same for Firefox. When opening a link in Liferea, the link open in an external browser and the browser gets focus. I would like to open the links in background (so that the browser does not get focus). The only solution is to set Focus prevention level to Normal in the Focus & Raise Behaviour tab of General options in CCSM. But this messes things for other things. DO you have any other idea? I am using Unity on 11.10.

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• Should we use python 2.6 or 2.7 or 3.x?

  - by lamwaiman1988

  The version of python which I am using is 2.6, and there is a 2.7 and 3.x. Usually I use python for some trivial program/snippet. I realize there are some major difference between 2.x and 3.x. I would really like to know, if I am going to make a bigger project with python, which version of python should I use? Should I upgrade to 2.7, or go to 3.x or stay with 2.6? The decision should be based on these terms: Number of user in the internet as a community. More users mean more open-source package and help from them. Functionality. Support from official development team. Compatibility for existing module/package. Thanks!

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• CSS&ndash;margin or padding

  - by woodbase

  I was beginning the implementation of a new design, and once again I found that my margin property on a div-tag, did not behave as I expected. So I decided to look for best practice when it comes to using margin or padding. What I found was this very short and concise description of the difference between the two: “Margin is on the outside of block elements while padding is on the inside. Use margin to separate the block from things outside it, padding to move the contents away from the edges of the block.” So what is best practice? Well it depends on the context. In my case I should have used padding…

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• ASUS VX-6 Laptop Wireless not connecting

  - by user2152790

  Someone posted a script a couple days ago, here is my output.Pastebin I can see wifi SSIDs in network, but cannot connect to mine. The only time wifi worked on 13.10 was in the Live CD, but wifi stopped working as soon as install process started. Did below but made no difference. sudo apt-get install bcmwl-kernel-source sudo modprobe -rv brcmsmac sudo modprobe -v wl What I do next? I tried Software&Updates and it showed 1 proprietary driver in use. This sounds like a WPA/WPA2 issue? Wifi works when I tried Zorin OS 7.1, wifi always worked in windows 7.

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• Google Analytics Request URI to Event advanced filter

  - by confidentjohn

  I have a query string attached to a Request URI. Whilst I can see this data within the pages report and it works, I was thinking about setting up an advanced filter to convert the request URI to an Event, with the hope this would clean up my pages report and sit this query with related events in my data. I can see in advanced filters that this is possible, but seems limited to specifying a single event area, so Cat, action or Label, not all 3. Does any one know how I could set up an advanced filter to find any URIs that contain a specific query string, say example below. www.example.com?querystring=123 and convert this into an event, where I can set the Cat, action and label.

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• Repartitioning in 14.94 To Add Home Partion

  - by Chaim Frazer

  I have 32 bit 14.04 installed as the only OS on a older Toshiba Laptop. Unfortunately, when I installed it I did not set up a \home partition, which I had intended to do. What I want to do is to set up a \home partition and to transfer the files in my current \home directory to it. I have a 14.04 Live CD, so I could reinstall 14.04. I also have GParted on a Live CD. If I use GParted, I need precise instructions about how to proceed. I have plenty of disk space (200 GB) for either alternative and know how to decide space allocation for Linux partitions. How should I proceed? Thanking you in advance. Chaim Frazer

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• Are there any resources for motion-planning puzzle design?

  - by Salano Software

  Some background: I'm poking at a set of puzzles along the lines of Rush Hour/Sokoban/etc; for want of a better description, call them 'motion planning' puzzles - the player has to figure out the correct sequence of moves to achieve a particular configuration. (It's the sort of puzzle that's generically PSPACE-complete if that actually helps anyone's mental image). While I have a few straightforward 'building blocks' that I can use for puzzle crafting and I have a few basic examples put together, I'm trying to figure out how to avoid too much sameness over a large swath of these kinds of puzzles, and I'm also trying to figure out how to make puzzles that have more of a feel of logical solution than trial-and-error. Does anyone know of good resources out there for designing instances of this sort of puzzle once the core puzzle rules are in place? Most of what I've found on puzzle design only covers creating the puzzle rules, not building interesting puzzles out of a set of rules.

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• The network printer will only print blank pages and will not stop. What should I do?

  - by LibraryGeekAdam

  I work in a library, so we have a Ricoh printer that is networked between all of us. I just recently installed Ubuntu 11.10 64bit on my desktop and have been trying to set up the printer without success. Ubuntu found the printer immediately and allowed me to set it up. When I hit test print, I get one sheet with writing on it and then it prints blank pages and will not stop until I turn off the printer. I tried printing from a document and I get the same one page with writing and then all the blank pages again. Below is what the page says with writing on it. I'd appreciate any help anyone is willing to give. Thanks. %!PS-Adobe-3.0 %% %% mark () () (bunch of numbers) {setuserinfo} stopped cleartomark %%%!

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• Le Web bientôt doté d'un nouveau langage ? CAS s'inspire du CSS pour proposer une définition des attributs des balises HTML dans une feuille

  Le Web bientôt doté d'un nouveau langage ? CAS s'inspire du CSS pour proposer une définition des attributs des balises HTML dans une feuille Tab Atkins Jr, un représentant de Google au sein du W3C (World Wide Web Consortium) vient de proposer à l'organisme un nouveau langage de script pour normalisation. Le langage CAS pour Cascading Attribute Sheets s'inspire grandement du CSS (Cascading Style Sheets), à la différence qu'il est basé sur un concept d'attributs HTML. L'idée de base autour de ce nouveau langage est que tout comme avec le CSS, les développeurs pourront définir dans un fichier des attributs pour les balises HTML, qui seront directement appliqués à l'ensemble ...

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• Why does Ubuntu Freezes on ASUS K42DY laptop with RADEON HD6470M Graphics Card?

  - by ix3

  Hi,I have an ASUS K42DY laptop with AMD Phenom II x2, 8 GB Ram , 500 GB Hard Drive and has a didicated ATI RADEON HD 6470M Graphics Card and I'm running Ubuntu 12.04 LTS 64bit on it. I have installed GNOME 3 and also followed this Make Ubuntu look like Mac OS X. I have also installed apps from the software center, getdeb & playdeb all of which worked fine. However, I noticed that Ubuntu freezes after inactivity let's say 1-3hrs. I have already set power setting to never standby or hibernate. This is completely annoying because all I can do is log-out via ctrl+alt+del or manually shut down and reboot my laptop. What should I do? By the way, this happens on all shells Unity, Gnome (even with the basic) and Cairo Dock.I set Swap Space at 8GB during installation. Any help will be appreciated. Thanks!

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• C++ function returning pointer, why does this work ? [migrated]

  - by nashmaniac

  So heres a simple c++ function what it does it take an array of characters as its argument and a integer n and then creates a new character array with only n elements of the array. char * cutString(char * ch , int n){ char * p = new char[n]; int i ; for(i = 0 ; i < n ; i++) p[i] = ch[i]; while(i <= n ){ p[i++] = '\0'; } return p ; } this works just fine but if I change char * p = new char[n]; to char p[n]; I see funny characters what happens ? What difference does the former make also p is a temporary variable then how does the function returns it alright ?

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• Importing Data From Excel Using SSIS - Part 1

  Recently while working on a project to import data from an Excel worksheet using SSIS, I realized that sometimes the SSIS Package failed even though when there were no changes in the structure/schema of the Excel worksheet. I investigated it and I noticed that the SSIS Package succeeded for some set of files, but for others it failed. I found that the structure/schema of the worksheet from both these sets of Excel files were the same, the data was the only difference. How come just changing the data can make an SSIS Package fail? What actually causes this failure? What can we do to fix it?

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• What's the reason in your mind Exception are heavily used in Managed (C# and Java) language but not in C++?

  - by ZijingWu

  AFAIK, a lot of C++ projects don't allow exceptions and deny them in coding guidelines. I have a lot of reasons, for example, Exception is hard to handle correctly if your binary needs to be compiled by separate and different compilers. But it doesn't fully convince me, there is a lot of projects which are just using one compiler. Compared to C++, Exceptions are heavily used in C# and Java and the reason can only be that Exception are not bringing enough benefit. One point is Debugbility in practice. Exception can not get the call stack in C++ code, but in C# and Java you can get the call stack from Exception, it is significant and makes debugging easier. No-CallStack is not the fault of the Exception, it is the language difference , but it impacts the Exception usage. So what's the reason that exceptions are frowned upon in c++ programs?

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