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• Displaying Datamatrix in application error screen

  - by DaveNay

  Quite often we will get a report from a user in the field saying there was an error in our application. Frequently this leads to the typical round of "What was the error?" "I don't know, it was just an error." We of course log these faults to the log files, and we can even enable detailed debug logs, but this involves the end user changing a setting in the configuration file and then finding the correct files and then emailing them to us. As I'm sure you can all imagine, there are plenty of pitfalls and alligators in this methodology. Recently a couple of people have used their cell phone to email me a "screen capture" of the fault, and while this helps, we still have to scrutinize the image to find the exact fault, and if enabled, the stack trace. So this evening, I had the brilliant idea (IMHO) to encode the fault into a Datamatrix barcode image and then encourage users to send me a picture from their cell phone. I can then decode the datamatrix and get a parse-able error message! Our core technology is machine vision, so the decoding of the datamatrix image would be trivial, I just need to find a method of generating the actual image to display in the fault handler. Thoughts?

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• View the Time & Date in Chrome When Hiding Your Taskbar

  - by Asian Angel

  Do you prefer keeping your Taskbar hidden but still need to keep watch on what time it is? Now you can keep track of the time without the Taskbar using the Date Today extension for Google Chrome. A Look at Date Today with Different Themes This extension does one thing and does it well…it provides you with an “active icon” clock that will let you view the time and date in two fashions. The first is by hovering your mouse over the “Toolbar Clock Button”… And the second is by clicking on the “Toolbar Clock Button” to view an enlarged version. Here you can see the extension in use with five different themes to get an idea of how it might look with the theme that you are currently using. It does stand out very nicely with brighter or darker colored themes. Conclusion While this extension is obviously not for everyone it will make a nice (and useful) addition to Chrome for those who prefer keeping their Taskbar hidden. Links Download the Date Today extension (Google Chrome Extensions) Similar Articles Productive Geek Tips Set the Date and Time on SolarisView Browser History Based on Host & Date in ChromeQuick Tip: Set a Future Date for a Post in WordPressFuture Date a Post in Windows Live WriterSave Screen Space by Hiding the Bookmarks Toolbar in Safari for Windows TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Discovery Channel LIFE Theme (Win7) Increase the size of Taskbar Previews (Win 7) Scan your PC for nasties with Panda ActiveScan CleanMem – Memory Cleaner AceStock – The Personal Stock Monitor Add Multiple Tabs to Office Programs

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• What is the best way to exploit multicores when making multithread games?

  - by Keeper

  Many people suggest to write a program, and then start optimizing it. But I think that when it's coming to multithreading with multicore, a little think ahead is required. I've read about using threads, and experienced it myself during some courses at the university (still a student). The big question is simple, but a bit abstract: What thread related steps in game design do I need to take, before implementation? Now trying to be more specific. Let's say, as an example, that I'm making a small board game (like Monopoly) that I want to be multithreaded. My goal Is that this multithreaded game will exploit the best of the multicore system, lets say 4-6 cores (like in i7 processors). My answer to this question at the moment is, one thread for each of these four basic components: GUI User Input / Output AI (computer rival) Other game related calculations (like shortest path from A to B, or level up status change) I'm not an expert (yet!), and I'm sure there are better answers out there. Any suggestion, answer, different approach will be helpful. Some thoughts: Maybe splitting the main database is a good way.. (or total disaster.. )

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• Can I use a 302 redirect to serve up static content from an URL with escaped_fragment?

  - by Starfs

  We would like to serve up SEO-friendly Ajax-driven content. We are following this documentation. Has anyone ever tried to write a 302 redirect into the .htaccess file, that takes the ?_escaped_fragment= string and send that to a static page?, for example /snapshot/yourfilename/. How will Google react to this? I've gone through the documentation and it's not very clear. The below quote is from Google's documentation this is what I find. I'm not sure if they are saying that you can redirect the _escaped_fragment_ URL to a different static page, or if this is to redirect the hashtag URL to static content? Thoughts? From Google's site: Question: Can I use redirects to point the crawler at my static content? Redirects are okay to use, as long as they eventually get you to a page that's equivalent to what the user would see on the #! version of the page. This may be more convenient for some webmasters than serving up the content directly. If you choose this approach, please keep the following in mind: Compared to serving the content directly, using redirects will result in extra traffic because the crawler has to follow redirects to get the content. This will result in a somewhat higher number of fetches/second in crawl activity. Note that if you use a permanent (301) redirect, the url shown in our search results will typically be the target of the redirect, whereas if a temporary (302) redirect is used, we'll typically show the #! url in search results. Depending on how your site is set up, showing #! may produce a better user experience, because the user will be taken straight into the AJAX experience from the Google search results page. Clicking on a static page will take them to the static content, and they may experience avoidable extra page load time if the site later wants to switch them to the AJAX experience.

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• Welcome to the Gamification Blog!

  - by erikanollwebb

  If you are here, you have probably been hearing about gamification and game mechanics, and wondering how it all fits into the enterprise space.  Although I've been leading some efforts in the Fusion Apps UX team on gamification for a while, I have left it to a couple of others to blog on it.  For example, check out the links below from Ultan Ó Broin if you haven't seen these already: #gamifyOracle: Oracle Applications Gamification Worldwide #UX Design Jam Oracle Applications UX Gamification Worldwide All Hands Day Gamification, Schamification: Reality Isn't Broken. Your User Experience Is I've been tweeting to #GamifyOracle for a while but I'll try to use this blog to put a little of my own thoughts on the matter together.  In the meantime, I spoke at the GSummit in June on the things we're working on and I'll be leading a workshop and speaking on Enterprise Gamification at the Enterprise Gamification Summit in September.  Oracle peeps, let me know if you are interested in attending, since we can get a group discount for the workshop/summit.  We're also planning to conduct some more research on gamification in the enterprise space at Oracle OpenWorld this October.  In the meantime, let me know if there are issues you are interested in and I'll try to put some things together here.  I'd love to know who all is working on gamification in Oracle--I know some of you but I'm sure there are others!

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• Recreating Doodle Jump in Canvas - Platforms spawning out of reach

  - by kushsolitary

  I have started to recreate Doodle Jump in HTML using Canvas. Here's my current progress. As you can see, if you play it for a few seconds, some platforms will be out of the player's reach. I don't know why is this happening. Here's the code which is responsible for the re-spawning of platforms. //Movement of player affected by gravity if(player.y > (height / 2) - (player.height / 2)) { player.y += player.vy; player.vy += gravity; } else { for(var i = 0; i < platforms.length; i++) { var p = platforms[i]; if(player.vy < 0) { p.y -= player.vy; player.vy += 0.08; } if(p.y > height) { position = 0; var h = p.y; platforms[i] = new Platform(); } if(player.vy >= 0) { player.y += player.vy; player.vy += gravity; } } } Also, here's the platform class. //Platform class function Platform(y) { this.image = new Image(); this.image.src = platformImg; this.width = 105; this.height = 25; this.x = Math.random() * (width - this.width); this.y = y || position; position += height / platformCount; //Function to draw it this.draw = function() { try { ctx.drawImage(this.image, this.x, this.y, this.width, this.height); } catch(e) {} }; } You can also see the whole code on the link I provided. Also, when a platform goes out of the view port, the jump animation becomes quirky. I am still trying to find out what's causing this but can't find any solution.

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• License validation and calling home

  - by VitalyB

  I am developing an application that, when bought, can be activated using a license. Currently I am doing offline validation which is a bit troubling to me. I am aware there is nothing to do against cracks (i.e modified binaries), however, I am thinking to trying to discourage license-key pirating. Here is my current plan: When the user activates the software and after offline validation is successful, it tries to call home and validate the license. If home approves of the license or if home is unreachable, or if the user is offline, the license gets approved. If home is reached and tells the license is invalid, validation fails. Licensed application calls home the same way every time during startup (in background). If license is revoked (i.e pirated license or generated via keygen), the license get deactivated. This should help with piracy of licenses - An invalid license will be disabled and a valid license that was pirated can be revoked (and its legal owner supplied with new license). Pirate-users will be forced to use cracked version which are usually version specific and harder to reach. While it generally sounds good to me, I have some concerns: Users tend to not like home-calling and online validation. Would that kind of validation bother you? Even though in case of offline/failure the application stays licensed? It is clear that the whole scheme can be thwarted by going offline/firewall/etc. I think that the bother to do one of these is great enough to discourage casual license sharing, but I am not sure. As it goes in general with licensing and DRM variations, I am not sure the time I spend on that kind of protection isn't better spent by improving my product. I'd appreciate your input and thoughts. Thanks!

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• Randomly Freezes - How Can I Diagnose the Problem?

  - by j0rd4n

  At random times, Ubuntu 10.04 freezes, and I have to do a hard shutdown. It was upgraded from 9.10 which didn't freeze. First, is this is common problem with a quick answer, and if not, what can I do to diagnose it? I've tried checking application/kernel logs, but nothing gives me a clue as to what caused the problem. My guess, is that since the OS froze, no logs could be updated. Ideas? SOLUTION: Solved it. My particular problem was my graphics card (integrated Radeon 9000 series). netconsole revealed I was getting the error: "reserve failed for wait". After trial-and-error, I manually configured my video card and disabled hardware acceleration. Completely fixed the issue. Here is what I did: Manually Created xorg.conf Ubuntu automatically configures xorg.conf and doesn't use a file. To edit this file, you have to tell Ubuntu to explicitly create one and then edit it. Here are the steps: Restart system Hold Shift as GRUB boots Select root terminal in GRUB login menu Execute: X -config xorg.conf.new Copy: cp xorg.conf.new /etc/X11/xorg.conf Disable Hardware Acceleration The following is specific to my Radeon card, but I'm sure other cards have a similar setup. Edit xorg.conf Find "Device" section for graphics card Uncomment "NoAccel" option and set to "True" Save + reboot Hope that helps.

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• Pantheon Not Completely Installed?

  - by Simon

  I have just installed the pantheon shell today, and I have not found any help with this yet. I am not just a random noob, i use a bunch of other shells and i also have a few development applications on my copy of ubuntu. But ever since ive opened up pantheon, i cannot find settings or this thing called the launchpad. (if the launchpad is the app drawer up in the upper left corner, or if its the dock. i have it, if thats not what launchpad is, then i cant access it.) I can only change my wallpaper by going back to unity, gnome, or KDE. There is a system settings in the power menu (upper right), but it only has Language Support, Ubuntu One, Additional Drivers, And Printing. I can still access the full ubuntu settings in GNOME of Unity. But thats it. I installed in the terminal, uninstalled, and reinstalled using the software center. Please Help Me If Any Of You Can! Thanks!!!

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• Is learning C# as a first language a mistake?

  - by JuniorDeveloper1208

  I know there are similar questions on here, which I've read, but I recently read this post by Joel Spolsky: How can I teach a bright person, with no programming experience, how to program? And it got me thinking about my way of learning and whether it might actually be harmful in the long run. I've dabbled with various languages but C# is my first serious one, I've read "Head First C#" and created a few projects. But after reading the post above I've found it a bit disheartening that I may be going about it all wrong, obviously I respect Joel's opinion which is what has thrown me a bit. I've started reading "Code" as recommended in the reading list and I'm finding it pretty hard going, although enjoyable. I feel like it's taken the shine off of my "noobish hacking about" in Visual Studio. So now I'm unsure as to what path I should take? Should I take a step back and follow Joel's advice and start reading? I guess my main aim is just to become a good programmer, like everyone else, but I don't want to be going into bad practice by learning a .NET language when someone who's opinion I respect thinks that it is harmful. Thoughts?

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• Research useful for getting a job?

  - by Twirling Hearth

  I have recently started a BS program in Computer Science, in order to improve my employment prospects. I already possess a Master's in sociology (as part of a PhD program that I left early because I could not possibly sustain interest any longer). As such, I am trying to find my way in the grand world of computers. One option that has been suggested to me in the past is something to do with social networking. I already have a strong social sciences background, and my knowledge of programming is increasing as I go through my studies. I know there are some people in my city (Boston) who are doing research in that area, so it's possible I could get someone to take interest in me. For that matter, because research is something that I'm pretty good at, it's an option I'm considering, career-wise. I just have one question, is it a worthwhile use of my time career-wise? I have no burning intellectual passion for that topic, but I'm perfectly happy to do it, if it means $$$. Your thoughts are welcome.

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• Twinview broken on upgrade to ubuntu 10.10

  - by mapkyca

  I have been on 9.10 for over a year on the grounds that if it ain't broke, don't fix it. However, I had a spare weekend and figured it was probably about time... I performed an upgrade to 10.4, and everything seemed to proceed smoothly, so I took the plunge and went for 10.10. Disaster. My twinview Nvidia display which had been working perfectly is now broken. On boot everything seems fine, but when X starts and the second monitor springs into life the primary winks out and switches off - almost as if its been put into an unsupported display mode. The system seems to think there's a second monitor - the nvidia logo is split across the two screens, but it can't seem to start. Things I've tried: Swapping the monitors (one is older than the other, and its definitely the port not the actual monitor) Rolling back to an old Xorg conf from prior to the upgrade Installing a non-beta driver direct from Nvidia (this seems to start both monitors but then apparently stops boot and causes the second display to 'wink'. Twinview seems non-functional, both displays are mirrors) Disabling EDID Disabling twinview, logging in and attempting to use the Nvidia config to re-detect the monitors (second monitor is falsely detected and won't go higher than 1024x768. Selecting 'apply' causes one screen to go blank and the other to display garbage) googling for about 5 hours looking for similar problems, none of the offered solutions seemed to work I'm at a loss, and it is looking very much like I'm going to have to go through a time consuming reinstall to downgrade back to the working 10.4. Any thoughts?

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• Unity elements sometimes appear while full screen in Virtualbox - how to stop it?

  - by frumbert

  Launcher is great, and it helps me finds stuff. I have the latest release of 12. But when I'm full screen in VirtualBox running another operating system and I hit some key combination I haven't yet figured out, Unity suddenly grabs keyboard focus. It might be alt-tab, it might be left-control x. I have physically pulled both the windows key and FN key off my laptop because they get in the way, so it's probably not the windows key. You don't know the focus has been stolen because the full screen app (VirtualBox) is still full screen and the Unity element is in the background. But you're busy typing into a Unity box, not your foreground application. This is particularly annoying. In my screenshot (taken from a camera, because the built in screen capture program can't capture a screenshot containing the launcher...) the windows VM is the foreground application, but the "Run Command" entry box has come up and is capturing the keyboard: I would like a foreground full screen app to stay that way. Is there a way that I can keep Unity but only have it activate its elements (e.g. pop out with its search box) if I physically click a button, not type some random key combination that foreground applications can get confused about? Otherwise I can do without the launcher or other elements, because doing my actual work is more involved than just launching programs.

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• Best way to calculate unit deaths in browser game combat?

  - by MikeCruz13

  My browser game's combat system is written and mechanically functioning well. It's written in PHP and uses a SQL database. I'm happy with the unit balance in relation to one another. I am, however, a little worried about how I'm calculating unit deaths when one player attacks another because the deaths seem to pile up a little fast for my taste. For this system, a battle doesn't just trigger, calculate winner, and end. Instead, it is allowed to go for several rounds (say one round every 15 mins.) until one side passes a threshold of being too strong for the other player and allows players to send reinforcements between rounds. Each round, units pair up and attack each other. Essentially what I do is calculate the damage: AP = Attack Points HP = Hit Points Units AP * Quantity * Random Factors * other factors (such as attrition) I take that and divide by the defending unit's HP to find the number of casualties of defending units. So, for example (simplified to take out some factors), if I have: 500 attackers with 50 AP vs 1000 defenders with 100 HP = 250 deaths. I wonder if that last step could be handled better to reduce the deaths piling up. Some ideas: I just change all the units with more HP? I make sure to set the Attacking unit's AP to be a max of the defender's HP to make sure they only kill 1 unit. (is that fair if I have less huge units vs many small units?) I spread the damage around more by including the defending unit's quantity more? i.e. in that scenario some are dead and some are 50% damage. (How would I track this every round?) Other better mathematical approaches?

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• Launcher sometimes appears while full screen in VM (virtaulbox) - how to stop it?

  - by frumbert

  Launcher is great, and it helps me finds stuff. I have the latest release of 12. But when I'm full screen in VirtualBox running another operating system and I hit some key combination I haven't yet figured out, Laucher suddenly grabs keyboard focus. It might be alt-tab, it might be left-control x. I have physically pulled both the windows key and FN key off my laptop because they get in the way, so it's probably not the windows key. You don't know the focus has been stolen because the full screen app (VirtualBox) is still full screen and launcher is in the background. But you're busy typing into a laucher search box, not your foreground application. This is particularly annoying. In my screenshot (taken from a camera, because the built in screen capture program can't capture a screenshot containing the launcher...) the windows VM is the foreground application, but the launcher has come up and is capturing the keyboard: http://imgur.com/SrMRr I would like a foreground full screen app to stay that way. Is there a way that I can keep the launcher but only have it activate (e.g. pop out with its search box) if I physically click the button, not type some random key combination that foreground applications can get confused about? Otherwise I can do without the launcher, because doing my actual work is more involved than just launching programs.

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• Developing Good Contacts

  There are millions of was you can develop good networking contacts, but you must be open to meeting new people. In the information technology industry, everyone is a potential client. So any place you can meet people is a good place to develop good networking contacts. Here are a few examples Online Discussion Forums – Online forums are a great place to show your knowledge of a subject and allow you to meet people that share your same interests Blog Networks – Allowing others to read your thoughts and comment on them. In addition, you can so the same on other blogs with in the network. Networking Sites – Networking sites are a great way to find new contacts based on your current contacts because you can share common friends, and possibly common interests Volunteering – Volunteering is a great way to meet new contacts, and you can help others at the same time Civic Organizations – Participating in organizations or clubs like the Lions Club, Rotary Club, and religious affiliated organizations because you can meet people of all walks of life, and can share and contribute ideas for common goals Chamber of Commerce – This is another great way to meet contacts especially if you are interested in starting your own business. The chamber is a great way to meet other business oriented people who are always looking to collaborate and improve their business. Family and Friends – Family and friends are another excellent to meet new contacts, because they can always be on the lookout for opportunities for you. For example your brother hears that a friend of his needs a new website, so he gives him your number and highly recommends you. This is really good because the potential client is looking for the service you can perform, and you where already highly recommend.

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• C++ program...overshoots? [migrated]

  - by Zdrok

  I'm decent at C++, but I may have missed some nuance that applies here. Or maybe I completely missed a giant concept, I have no idea. My program was instantly crashing ("blah.exe is not responding") about 1/5 times it was run (other times it ran completely fine) and I tracked the problem down to a constructor for a world class that was called once in the beginning of the main function. Here is the code (in the constructor) that causes the problem: int ii; for(ii=0;ii<=255;ii++) { cout<<"ent "<<ii<<endl; entity_list[ii]=NULL; } for(ii=0;ii<=255;ii++) { cout<<"sec "<<ii<<endl; sector_list[ii]=NULL; } entity_list[0] = new Entity(0,0); entity_list[0]->_world = this; Specifically the second for loop. The cout references are new for the sake of telling where it is having trouble. It would print the entire "ent 1" to "ent 255" and then "sec 1" to "sec 255" and then crash right after, as if it was going for a 257th run through of the second for loop. I set the second for loop to go until "ii<=254" which stopped all crashes. Does C++ code tend to "overshoot" for loops or something? What is causing it to crash at this specific loop seemingly at random? By the way, entity_list and sector_list point to classes called Entity and Sector, respectively, but they are not constructing anything so I didn't think it would be relevant. I also have a forward declaration for the Entity class in a header for this, but since none were being constructed I didn't think it was relevant either. EDIT: It was due to the new Entity line, I assumed wrongly that the fact that altering the for statement to 254 fixed the crashes meant that it had to be there. I still don't understand why the for loop is related, though.

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• Dynamic Query Generation : suggestion for better approaches

  - by Gaurav Parmar

  I am currently designing a functionality in my Web Application where the verified user of the application can execute queries which he wishes to from the predefined set of queries with where clause varying as per user's choice. For example,Table ABC contains the following Template query called SecretReport "Select def as FOO, ghi as BAR from MNO where " SecretReport can have parameters XYZ, ILP. Again XYZ can have values as 1,2 and ILP can have 3,4 so if the user chooses ILP=3, he will get the result of the following query on his screen "Select def as FOO, ghi as BAR from MNO where ILP=3" Again the user is allowed permutations of XYZ / ILP My initial thought is that User will be shown a list of Report names and each report will have parameters and corresponding values. But this approach although technically simple does not appear intuitive. I would like to extend this functionality to a more generic level. Such that the user can choose a table and query based on his requirements. Of course we do not want the end user to take complete control of DB. But only tables and fields that are relevant to him. At present we are defining what is relevant in the code. But I want the Admin to take over this functionality such that he can decide what is relevant and expose the same to the user. On user's side it should be intuitive what is available to him and what queries he can form. Please share your thoughts what is the most user friendly way to provide this feature to the end user.

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• How exactly does app ranking work?

  - by qweasdzxc1

  So I've been in the app industry for around half a year and I still don't know how exactly ranking higher for your app will help increase downloads. That sounds like a question with an obvious answer but this is what's going through my mind so hear me out: Unless your app is ranked within the top 100, no one can see it in the featured categories. So even if my app jumped from 400th to 300th place, would there really even be a difference in downloads? And I'm saying 400th to 300th in ranking in my specific category. Indie developers like me don't even come close to ranking for the overall category. So far, the only usefulness of trying to get a higher rank is to get featured or something like that, but big companies have tons of money to throw on marketing...so the chances of any indie developer getting featured is rare. The only thing that I can see ranking being good for is to rank for your keywords so that when someone searches for that word, your app will hopefully appear in the top 10-25 results. Can anyone confirm my thoughts or add anything else that I might have missed out on? How exactly do users find your app if you're not in the top 100 app in your category?

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• Displaying Datamatrix in application error screen

  - by DaveNay

  Quite often we will get a report from a user in the field saying there was an error in our application. Frequently this leads to the typical round of "What was the error?" "I don't know, it was just an error." We of course log these faults to the log files, and we can even enable detailed debug logs, but this involves the end user changing a setting in the configuration file and then finding the correct files and then emailing them to us. As I'm sure you can all imagine, there are plenty of pitfalls and alligators in this methodology. Recently a couple of people have used their cell phone to email me a "screen capture" of the fault, and while this helps, we still have to scrutinize the image to find the exact fault, and if enabled, the stack trace. So this evening, I had the brilliant idea (IMHO) to encode the fault into a Datamatrix barcode image and then encourage users to send me a picture from their cell phone. I can then decode the datamatrix and get a parse-able error message! Our core technology is machine vision, so the decoding of the datamatrix image would be trivial, I just need to find a method of generating the actual image to display in the fault handler. Thoughts?

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• How to avoid "DO YOU HAZ TEH CODEZ" situations?

  - by volothamp

  I have a strange situation at work, where a colleague of mine often asks me and other co-workers for working code. I would like to help him, but this constant request of trivial snippets interrupts my thoughts and sometimes makes it hard to concentrate. Plus, I have the impression (...) that this requests are generated by lack of competence, more than by laziness. In fact, he often asks things pretending to know the answer, since when I solve the problem he usually says things like "Sure", "Yes, that's what I thought", giving me the impression that my answer isn't worth it. How can I solve this embarrassing situation? Should I show more explicitly in front of other colleagues his lack of knowledge (by saying things like: "do it yourself if you can, please") or continue giving him what he wants? I think that he should aggregate all his answers in one, so that I can give him a portion of my time and he can work all by himself on his things. There is no hierarchy in the team, I must say we both have a similar seniority of five years, more or less. For the same reason I believe I cannot report to management, since trivial questions are often ignored. I discussed with other two members and they agree with me: in fact he often ask things cycling through colleagues.

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• Corporate Efficiency

  - by AndyScott

  Thoughts on streamlining the process of getting someone up to speed when they join a project as a new hire; or as is common in some companies, switch from one project to another: Has anyone heard of a strategy (including emphasis towards consistent, ongoing documentation) that would bring a user up to speed quickly? Has there been any thought given to focused documentation, specific to a role within a project? Or formalized mentoring within a project, that goes beyond a “system walkthrough”?   Often it's overlooked what time is wasted when a senior level worker is brought on board.  It's assumed that they will know the right questions to ask. They are the type of people that normally learn quickly, and in their own ways, so let them get by with what's out there.   Having a user without a computer will cost you measurable worker hours, making it an easy target to shoot at (and rightly so). Not getting them up to speed as quickly as possible is an efficiency issue, that seems to have become an industry standard as an accepted loss. Given the complexity of the projects within most companies, and the frequency with which users are shifted from one project to another based on need; I think this is an area that bears consideration.

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• Multi Threading - How to split the tasks

  - by Motig

  if I have a game engine with the basic 'game engine' components, what is the best way to 'split' the tasks with a multi-threaded approach? Assuming I have the standard components of: Rendering Physics Scripts Networking And a quad-core, I see two ways of multi-threading: Option A ('Vertical'): Using this approach I can allow one core for each component of the engine; e.g. one core for the Rendering task, one for the Physics, etc. Advantages: I do not need to worry about thread-safety within each component I can take advantage of special optimizations provided for single-threaded access (e.g. DirectX offers a flag that can be set to tell it that you will only use single-threading) Option B ('Horizontal'): Using this approach, each task may be split up into 1 <= n <= numCores threads, and executed simultaneously, one after the other. Advantages: Allows for work-sharing, i.e. each thread can take over work still remaining as the others are still processing I can take advantage of libraries that are designed for multi-threading (i.e. ... DirectX) I think, in retrospect, I would pick Option B, but I wanted to hear you guys' thoughts on the matter.

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• Long 'Wait' Time for three php/CSS files. Is something blocking them?

  - by William Pitcher

  I have been speed optimizing a Wordpress site to little effect. There are three files CSS-related php files from the Wordpress theme that are delaying page loads on the site. One of the three files is basically one line of custom CSS from the custom CSS feature in the theme. You can see what I am talking about with this Pingdom speed test: The yellow is 'Wait'. There are no slow items in the cut-off portion of the image. The full results are here: Pingdom Results Page 1. Any thoughts on what might be causing this? I understand that I have blocking CSS or JS files, but I don't see anything that would be causing that long of a wait. When I ran the P3 Plugin Profiler, Wordpress and all plugins appeared fine -- it is the theme that is taking all the time. GTmetrix recommends avoiding dynamic queries. I assume all the ver=3.61 references are to the version of Wordpress (which I am using). I noticed that my Wordpress sites using other themes don't make this query (at least not over and over). 2. Is this typical coding practice? 3. How much negative impact do these query-strings have -- a little or a lot? I tried searching for similar questions here, please excuse me if I missed something. Sometimes, I know just enough to be dangerous.

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• Late feedback

  - by Sveta Smirnova

  MySQL Community team asked me to write about Devconf 2013 few months ago. Conference was in June, 2013, but I remembered about this my promise only now: month later after my participating in MySQL Connect and Expert Troubleshooting seminar (change country to United Kingdom if you see blank page). I think it is too late for the feedback, but I still have few thoughts which I want to record.DevConf (former PHPConf) always was a place where I tried new topics. At first, because I know audience there very well and they will be bored if I repeat a story which I was telling last year, but also because it is much easier to get feedback in your own native language. But last years my habit seems started to change and I presented improved version of my 2012 MySQL Connect talk about MySQL backups. Of course, I also had a seminar with unique topic, made for this conference first time: Troubleshooting MySQL Performance with EXPLAIN and Using Performance Schema to Troubleshoot MySQL. And these topics, improved, were presented at the expert seminar. It is interesting how my habit changes and one public speaking activity interferes next one.What is good about DevConf is it forces you to create new ideas and do it really well, because audience is not forgiving at all, so they catch everything you miss or prepared not good enough. This can be bad if you want to make a marketing-style topic for free, but allows to present technical features in really good details: all these sudden discussions really help.In year 2013 Oracle had a booth at the conference and was presented by a bunch of people. Dmitry Lenev presented topic "New features of replication in MySQL 5.6" and Victoria Reznichenko worked on the booth. What was new at the conference this year is greater interest in NoSQL, scale and fast development solutions. This, unfortunately, means not so huge interest in MySQL as it was earlier. However, at the same time, "Common" track was really MySQL track: not only Oracle, but people from other companies presented about it.

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