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  • Be the surgeon

    - by Rob Farley
    It’s a phrase I use often, especially when teaching, and I wish I had realised the concept years earlier. (And of course, fits with this month’s T-SQL Tuesday topic, hosted by Argenis Fernandez) When I’m sick enough to go to the doctor, I see a GP. I used to typically see the same guy, but he’s moved on now. However, when he has been able to roughly identify the area of the problem, I get referred to a specialist, sometimes a surgeon. Being a surgeon requires a refined set of skills. It’s why they often don’t like to be called “Doctor”, and prefer the traditional “Mister” (the history is that the doctor used to make the diagnosis, and then hand the patient over to the person who didn’t have a doctorate, but rather was an expert cutter, typically from a background in butchering). But if you ask the surgeon about the pain you have in your leg sometimes, you’ll get told to ask your GP. It’s not that your surgeon isn’t interested – they just don’t know the answer. IT is the same now. That wasn’t something that I really understood when I got out of university. I knew there was a lot to know about IT – I’d just done an honours degree in it. But I also knew that I’d done well in just about all my subjects, and felt like I had a handle on everything. I got into developing, and still felt that having a good level of understanding about every aspect of IT was a good thing. This got me through for the first six or seven years of my career. But then I started to realise that I couldn’t compete. I’d moved into management, and was spending my days running projects, rather than writing code. The kids were getting older. I’d had a bad back injury (ask anyone with chronic pain how it affects  your ability to concentrate, retain information, etc). But most of all, IT was getting larger. I knew kids without lives who knew more than I did. And I felt like I could easily identify people who were better than me in whatever area I could think of. Except writing queries (this was before I discovered technical communities, and people like Paul White and Dave Ballantyne). And so I figured I’d specialise. I wish I’d done it years earlier. Now, I can tell you plenty of people who are better than me at any area you can pick. But there are also more people who might consider listing me in some of their lists too. If I’d stayed the GP, I’d be stuck in management, and finding that there were better managers than me too. If you’re reading this, SQL could well be your thing. But it might not be either. Your thing might not even be in IT. Find out, and then see if you can be a world-beater at it. But it gets even better, because you can find other people to complement the things that you’re not so good at. My company, LobsterPot Solutions, has six people in it at the moment. I’ve hand-picked those six people, along with the one who quit. The great thing about it is that I’ve been able to pick people who don’t necessarily specialise in the same way as me. I don’t write their T-SQL for them – generally they’re good enough at that themselves. But I’m on-hand if needed. Consider Roger Noble, for example. He’s doing stuff in HTML5 and jQuery that I could never dream of doing to create an amazing HTML5 version of PivotViewer. Or Ashley Sewell, a guy who does project management far better than I do. I could go on. My team is brilliant, and I love them to bits. We’re all surgeons, and when we work together, I like to think we’re pretty good! @rob_farley

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  • How do I execute a file from a FAT USB drive?

    - by Derek Redfern
    I'm trying to install a portable app onto my USB drive such that it is compatible with both Ubuntu and Windows (specifically, a program called eToys). Support is already built into the app for both operating systems - there's etoys.sh for Ubuntu and etoys.exe for Windows. I decided to install onto a FAT drive since that can be read from both systems. This works fine for Windows, but for some reason I cannot execute etoys.sh on Ubuntu. The problem is not with the file - when the whole folder is copied to the local hard drive, the app works great in Ubuntu. But when I try to execute it from the USB, it opens the file in a text editor. I then tried running it from a terminal, but I got the message "Permission denied." I've had the same problem with other executables as well. Is there an easy way to execute things from a USB stick? Thanks! -- Derek

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  • Adding a DLL to the GAC in Windows 7

    - by Jim Giercyk
    I recently created a DLL and I wanted to reference it from a project I was developing in Visual Studio.  In previous versions of Windows, doing so was simply a matter of dropping the DLL file in the C:\Windows\assembly folder.  That would add the DLL to the Global Assembly Cache (GAC) and make it accessible in Visual Studio.  However, as is often the case, Window 7 is different.  Even if you have Administrator privileges on your machine, you still do not have permission to drop a file in the assembly folder.  Undaunted, I thought about using the old DOS command line utility gacutil.exe.  Microsoft developed the tool as part of the .Net framework, and it is available in the Windows SDK Framework Tools.  If you have never used gacutil.exe before, you can find out everything you ever wanted to know but were afraid to ask here: http://msdn.microsoft.com/en-us/library/ex0ss12c(v=vs.80).aspx .  Unfortunately, if you do not have the Windows SDK loaded on your development machine, you will need to install it to use gacutil, but it is relatively quick and painless, and the framework tools are very useful.  Look here for your latest SDK: http://www.microsoft.com/download/en/search.aspx?q=Windows%20SDK .   After installing the SDK, I tried installing my DLL to the GAC by running gacutil from a DOS command line: That’s odd.  Microsoft is shipping a tool that cannot be executed even with Administrator rights?  Let me stop here and say that I am by no means a Windows security expert, so I actually did contact my system administrators, and they were not sure how to fix the problem….there must be a super administrator access level, but it isn’t available to your average developer in my company.  The solution outlined here is working within the boundaries of a normal windows Administrator. So, now the hacker in me bubbles to the surface.  What if I were to create a simple BAT file containing the gacutil command?  It’s so crazy it just might work!  Ugh!  I was starting to think this would never work, but then I realized that simply executing a batch program did not change my level of access.  Typically in Windows 7, you would select the “Run As Administrator” option to temporarily act as an administrator for the purpose of executing a process.  However, that option is not available for BAT files run from the command line.  SOLUTION: Create a desktop shortcut to execute the BAT file, which in turn will execute the line command…..are you still with me?  I created a shortcut and pointed it to my batch file.  Theoretically, all I need to do now is right-click on the shortcut and select “Run As Administrator” and we’re good, right?  Well, kinda.  If you notice the syntax of my BAT file, the name of the DLL is passed in as a parameter.  Therefore, I either have to hard-code the file name in the BAT program (YUCK!!), or I can leave the parameter and drag the DLL file to the shortcut and drop it.  Sweet, drag-and-drop works for me…..but if I use the drag-and-drop method, there is no way for me to right-click and select “Run As Administrator”.  That is not a problem…..I simply have to adjust the properties of the shortcut I created and I am in business.  I Right-clicked on the shortcut and select “Properties”.  Under the “Shortcut” tab there is an “Advanced” button…..I clicked it. All I needed to do was check the “Run As Administrator” box: In summary, what I have done is create a BAT file to execute a command line utility, gacutil.exe.  Then, rather than executing the BAT file from the command line, I created a desktop shortcut to run it and set the shortcut properties to “Run As Administrator”.  This will effectively mean I am executing the command line utility with Administrator privileges.  Pretty sneaky. Now, when I drag the DLL file  over to the shortcut, it starts the BAT file and adds the DLL to the assembly cache.  I created another BAT file to remove a DLL from the GAC in case the need should arise.  The code for that is: Give it a try.  I can’t imagine why updating the GAC has been made into such a chore in Windows 7.  Hopefully there is a service pack in the works that will give developers the functionality they had in Windows XP, but in the meantime, this workaround is extremely useful.

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  • Return to the old C days.

    - by RPK
    Long back I used to program on C and than VB exploitation changed the career path. After VB came the .NET that proved to be a HoneyPot of Microsoft for old VB programmers and frustrated programmers of other hard to learn languages. The label on this HoneyPot was: "Getting things done." I now want to contribute to the Linux and other GNU projects. I feel whatever programming language you learn today, but if programming is your bread-and-butter, you must remain in touch with C. Many things have changed now. From the old Turbo-C for DOS to the present ...? Please advise me how to get back on the C track again. Reading again whole thing, chapter-by-chapter is not possible now, but I can learn by writing small utilities type of things, but sure GUI based. And yes, I hope, learning is going to be easy now with so many live forums and active community spots like StackOverflow etc.

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  • Jdk 6.0 update 6 installed sucessfully but java command not working

    - by Ravi.Kumar
    I switched to linux (Ubuntu 12.04) this morning and find it great but messed up while installing java. :-(. I have installed jdk6.0_6 successfully but when I run java command in terminal, I get this ravi@ravi-LIFEBOOK-AH531:~$ java The program 'java' can be found in the following packages: * default-jre * gcj-4.6-jre-headless * openjdk-6-jre-headless * gcj-4.5-jre-headless * openjdk-7-jre-headless Try: sudo apt-get install <selected package> Could someone help me with this? Below are the steps that I followed to install: copied file named jdk-6u6-linux-x64.bin to my documents from terminal executed chmod a+x jdk-6u6-linux-x64.bin and then executed sudo ./jdk-6u6-linux-x64.bin In terminal I accepted the license agreement and done.

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  • Monogame - Input secuence game (Scripting?)

    - by user2662567
    I'm starting to program my very first game, it's a clone of DDR/Stepmania done for research purposes and learning. I (at this early stage) get most of the UI/Music/input work that should be done, but what i still can't grasp is scripting, i've read about Lua and that you shouldn't use it with XNA/Monogame as C# is capable enough, but i cannot get the utility of it. Assuming the needs of my game, ¿What would be the ideal way to implement the input secuences it needs?, i thought of XML/Json, let's say Stage 1 <game> <level id="1"> <step id="1" key="up" time="00:00:01"/> <step id="2" key="left" time="00:00:02"/> </level> </game> Is that a correct implementation? or are there better ways with more benefits?

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  • Firefox Nighty 19.0a1 doesn't integrate with the taskbar (12.04)

    - by JamesTheAwesomeDude
    Okay, we all know how the "Normal" Firefox has the Menu Bar (File, Edit, View, etc.,) integrated with the taskbar at the top of the screen, just like every other program in Ubuntu (with the exception of programs run with gksu.) Now, I downloaded and installed the Nightly build of Firefox, and have been using it via the launcher (I finally figured all that out!) but whenever I run the Nightly build, the menu bar is separate, like so: http://i.imgur.com/Xogbs.png How do I fix this? I remember there being some sort of extension that did that, but I can't find it anymore.

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  • May I make an installer bundle GPL and payware together?

    - by Volomike
    I have an affiliate marketing client who needs to know if I can program this. Can I do one or both of the following scenarios without violating the GPL license? Scenario A: Make a software installer for a GPL licensed product which includes source, binaries, and license info. The installer also has a checkbox for installing optional software that's payware. (In this case, the payware is free crippleware, but has a registration upsell to provide more features.) The two products will not share libraries or anything else. Scenario B: Same as A, but reversed. So, the installer installs the payware, but there's a checkbox to also install the GPL software. And, again, when you install the GPL software, it comes with binaries, source, and license info.

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  • Dark Sun Dispatch 001

    - by Chris Williams
    If you aren't into tabletop (aka pen & paper) RPGs, you might as well click to the next post now... Still here? Awesome. I've recently started running a new D&D 4.0 Dark Sun campaign. If you don't know anything about Dark Sun, here's a quick intro: The campaign take place on the world of Athas, formerly a lush green world that is now a desert wasteland. Forests are rare in the extreme, as is water and metal. Coins are made of ceramic and weapons are often made of hardened wood, bone or obsidian. The green age of Athas was centuries ago and the current state was brought about through the reckless use of sorcerous magic. (In this world, you can augment spells by drawing on the life force of the world & people around you. This is called defiling. Preserving magic draws upon the casters life force and does not damage the surrounding world, but it isn't as powerful.) Humans are pretty much unchanged, but the traditional fantasy races have changed quite a bit. Elves don't live in the forest, they are shifty and untrustworthy desert traders known for their ability to run long distances through the wastes. Halflings are not short, fat, pleasant little riverside people. Instead they are bloodthirsty feral cannibals that roam the few remaining forests and ride reptilians beasts akin to raptors. Gnomes are extinct, as are orcs. Dwarves are mostly farmers and gladiators, and live out in the sun instead of staying under the mountains. Goliaths are half-giants, not known for their intellect. Muls are a Dwarf & Human crossbreed that displays the best traits of both races (human height and dwarven stoutness.) Thri-Kreen are sentient mantis people that are extremely fast. Most of the same character classes are available, with a few new twists. There are no divine characters (such as Priests, Paladins, etc) because the gods are gone. Nobody alive today can remember a time when they were still around. Instead, some folks worship the elemental forces (although they don't give out spells.) The cities are all ruled by Sorcerer King tyrants (except one city: Tyr) who are hundreds of years old and still practice defiling magic whenever they please. Serving the Sorcerer Kings are the Templars, who are also defilers and psionicists. Crossing them is as bad, in many cases, as crossing the Kings themselves. Between the cities you have small towns and trading outposts, and mostly barren desert with sometimes 4-5 days on foot between towns and the nearest oasis. Being caught out in the desert without adequate supplies and protection from the elements is pretty much a death sentence for even the toughest heroes. When you add in the natural (and unnatural) predators that roam the wastes, often in packs, most people don't last long alone. In this campaign, the adventure begins in the (small) trading fortress of Altaruk, a couple weeks walking distance from the newly freed city of Tyr. A caravan carrying trade goods from Altaruk has not made it to Tyr and the local merchant house has dispatched the heroes to find out what happened and to retrieve the goods (and drivers) if possible. The unlikely heroes consist of a human shaman, a thri-kreen monk, a human wizard, a kenku assassin and a (void aspect) genasi swordmage. Gathering up supplies and a little liquid courage, they set out into the desert and manage to find the northbound tracks of the wagon. Shortly after finding the tracks, they are ambushed by a pack of silt-runners (small lizard people with very large teeth and poisoned pointy spears.) The party makes short work of the creatures, taking a few minor wounds in the process. Proceeding onward without resting, they find the remains of the wagon and manage to sneak up on a pack of Kruthiks picking through the rubble and spilled goods. Unfortunately, they failed to take advantage of the opportunity and had a hard fight ahead of them. The party defeated the kruthiks, but took heavy damage (and almost lost a couple of their own) in the process. Once the kruthiks were dispatched, they followed a set of tracks further north to a ruined tower...

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  • How do I document my code?

    - by Brian Ortiz
    I'm a hobbyist programmer (with no formal education) looking to start doing small freelance jobs. One of the things that hobbyist programmers can get away with that those with a "real" job can't is lack of documentation. After all, you wrote it so you know how it works. I feel a little silly asking because it seems like such a basic thing, but how do I document my code? How should it be formatted? How should it be presented? (HTML pages? LaTeX?) What does/doesn't need to be documented? ...And maybe more specifics I haven't thought of. I mostly program in PHP but also C#.

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  • wish missing but tk is installed

    - by kj4ohh
    I was wanting to tinker around with TCL/TK programming. I tried to invoke the wish shell, but got this error: $ wish The program 'wish' is currently not installed. You can install it by typing: sudo apt-get install tk So, I tried to apt-get install tk: $ sudo apt-get install tk Reading package lists... Done Building dependency tree Reading state information... Done tk is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. But it's already installed... Where did wish go?

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  • Five C# Code Snippets

    A snippet is a small section of text or source code that can be inserted into the code of a program. Snippets provide an easy way to implement commonly used code or functions into a larger section of code. Instead of rewriting the same code over and over again, a programmer can save the code [...] Related posts:How To Obtain Environment Details With .NET 3.5 How-to: Easily Send Emails With .NET Understanding SMTP Status Codes ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • IIM Calcutta &ndash; EPBM 14 &ndash; Campus Visit - Arrival

    - by Ram Shankar Yadav
    Here I’m in the Mecca of Management, India’s premier institute of management, to learn great things about management with the management Gurus!! As they say a picture is worth thousand words, so I’ll say it by thousand Pictures ;) EPBM, yep that’s an acronym for Executive Programme in Business Management. It’s a year long program having 14 different management subject, designed to suit working professionals. For more info on EPBM please visit : http://www.iimcal.ac.in/edp/ld.asp or http://www.hnge.in/retail/iimc/iimc_epbm_15.htm   I’m gonna post my experiences, and hope that it will be useful for someone, who is interested in doing this programme. The collage above depicts my full day i.e., 25th April 2010, which started by taking pictures of beautiful moon night @ 3 AM, followed by air travel from 11 AM - 5 PM , meeting with friends/batch mates at Kolkata airport, one and half hour ride to Joka Campus by Yellow Taxi, “New Building” hostel…etc. Things that I didn’t captured on camera : Sweat after reaching campus, IPL Final watching in Common Room, Lot of GAGS and things that you can only experience by being here ….!~ Stay tuned for more…. ram :)

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  • Is it true that first versions of C compilers ran for dozens of minutes and required swapping floppy disks between stages?

    - by sharptooth
    Inspired by this question. I heard that some very very early versions of C compilers for personal computers (I guess it's around 1980) resided on two or three floppy disks and so in order to compile a program one had to first insert the disk with "first pass", run the "first pass", then change to the disk with "second pass", run that, then do the same for the "third pass". Each pass ran for dozens of minutes so the developer lost lots of time in case of even a typo. How realistic is that claim? What were actual figures and details?

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  • HTG Explains: Does Your Android Phone Need an Antivirus?

    - by Chris Hoffman
    The media is full of reports saying Android malware is exploding and that Android users are at risk. Does this mean you should install an antivirus app on your Android phone or tablet? While there may be a lot of Android malware in the wild, a look at Android’s protections and studies from antivirus companies reveals that you’re probably safe if you follow some basic precautions. How To Use USB Drives With the Nexus 7 and Other Android Devices Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It

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  • Internships at Oracle &ndash; a truly multicultural experience!

    - by cristian.condurache(at)oracle.com
    Hello everybody!!! Our names are Lena and Laura, we both study in the same Grande Ecole in France, IPAG and we are about to complete our 16 week-internship in Oracle in the UK. Below a summary of our experience! My name is Lena. I am 20 years old and joined Oracle UK in September 2010 – more specifically, I joined the EMEA Graduate's Recruitment Team (EMEA stands for Europe, Middle East and Africa), and I have learned a lot about working life. It was a really good experience, which made me realize that I soon will be looking for a fulltime employee in a company in less than 3 years. I am glad to have had this first experience in Oracle. First of all because it's a very welcoming company which treats interns as employees and gives them the opportunity to show their potential. I also discovered that it is nice to work in a company where everybody knows everybody, and where the atmosphere is really good. The multicultural aspect is one of the most important and beautiful elements of Oracle. It gives you the opportunity to have contacts in many parts of the world and discover a lot of nice people. During my internship I learned a lot about Recruitment. I discovered I want to work in a Human Resources role after I graduate. I like the contact I will have with candidates and the fact that I have to be in touch with managers and understand their needs. I would be glad to work for the company in the near future. I would like to thank all my team members for welcoming me like they did. It was a real pleasure to share this experience in Oracle and in this team and I hope to return after I graduate.   Hi all! I am Laura. My wish for this internship was to focus on training of personal skills for employees and, by the same time of course, for the company’s development.... and I did it in the OTD team (EMEA Organization Talent Development Team). I could not have done something better than this! It was truly instructive. I learnt how to work in such a big international company, the values and the rules to follow and to interact and be part of the organisation. In Oracle, there are so different aspects of every department, so many possibilities in HR as well as in Finance or Sales... The jobs are very various and the employees’ cultures are also really different thanks to this international and multicultural company. I am working with OTD for the entire EMEA region, having many of my colleagues in other countries, with other cultures, other ways to work, and other ways to think... this is so inspiring! Oracle offers the best environment to learn about a job, as well as to learn about work life in such large companies. This company is about new technologies, it always goes fast, and everything changes quickly! You have to be aware of these changes and keep track of the wishes of customers. For OTD of course, these customers are the employees. Looking back I have learnt more then I would have ever thought and I know that it is what I want to do... And now I hope to come back again! I want to thank all my team for welcoming me and integrating me with such happiness. I will truly miss them!! If you have any questions related to this article feel free to contact [email protected]. You can find our job opportunities via http://campus.oracle.com. Technorati Tags: Oracle,EMEA,Recruitment,internship,ODT,team

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  • What difference with Android when iOS is not open?

    - by hqt
    My question may seem silly, but, I've read in many Android books that the better part of Android is Android is open, and iOS is closed. But, from a programmer viewpoint, who cares about this point? Programmers just care about the platform: is it easy to program in, easy to have help in the network, etc. They don't care about whether the platform is open or closed. One book had additional information, but I don't understand it much. Since iOS is not open, I’d be able to share my work with others only if Apple allowed it. So, if you write an app, and need to share, you must have Apple's permission, but not Android's? Please help me understand this point. I'm preparing for a presentation on Android. And I don't know if I should put this point into my presentation.

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  • When would I use pseudocode instead of flowchart?

    - by user1276078
    I'm a student working with various techniques of programming, and I've come across pseudocode and flowchart. I know that these are both used in order to think through the problem before actually programming, but I have a few questions with this. When would I use pseudocode to plan out and when would I use flowcharts? Or is it better to do both before actually programming. Particularly for a small arcade sort of game in JAVA since that is my next project. I've noticed that pseudocode is very similar to the actual code rather than flowcharts. Would this make pseudocoding better because you essentially copy/paste the pseudocode into your program (of course, you have to change it to fit the language. I understand that part). Is it practical to use both of these while programming? Particularly the same game mentioned earlier. Thanks.

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  • How are minimum system requirements determined?

    - by Michael McGowan
    We've all seen countless examples of software that ships with "minimum system requirements" like the following: Windows XP/Vista/7 1GB RAM 200 MB Storage How are these generally determined? Obviously sometimes there are specific constraints (if the program takes 200 MB on disk then that is a hard requirement). Aside from those situations, many times for things like RAM or processor it turns out that more/faster is better with no hard constraint. How are these determined? Do developers just make up numbers that seem reasonable? Does QA go through some rigorous process testing various requirements until they find the lowest settings with acceptable performance? My instinct says it should be the latter but is often the former in practice.

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  • How do you approach tutorials

    - by aurel
    Hi I get lots of interesting tutorials through feeds and sometimes I implement them step by step, other times I just read through them and note anything that I do not know. when ever I implement them I takes a long time - starting the project, typing the code (as I feel there is no point to copy and paste ), then going back and forth between browser and editing program All in all, I am interested to know how do you learn from the tutorials (I'm no where close to being an expert). Or if you don't use tutorials, is there any other way to learn? Thanks a lot

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  • How do I install Sublime Text 2?

    - by Michael Gruber
    I installed Sublime Text 2 on 12.04 as per this tutorial. However I don't have adequate permissions when launching the program from the Unity launcher. For example I cannot install packages, or if I add a folder to the sidebar when I close Sublime and reopen, the folder is no longer listed. If I run sudo sublime in the terminal all changes remain after closing. I've tried chown-ing the Sublime Text 2 folder in usr/lib sudo chown -R mylogin:mylogin /usr/lib/"Sublime Text 2" but this seemed to have no effect.

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  • OpenGL ES Basic Fragment Shader help with transparency

    - by Chris
    I have just spent my first half hour playing with the shader language. I have modified the basic program I have which renders the texture, to allow me to colour the texture. varying vec2 texCoord; uniform sampler2D texSampler; /* Given the texture coordinates, our pixel shader grabs the corresponding * color from the texture. */ void main() { //gl_FragColor = texture2D(texSampler, texCoord); gl_FragColor = vec4(0,1,0,1)*vec4(texture2D(texSampler,texCoord).xyz,1); } I have noticed how this affects my transparent textures, and I believe I am loosing the alpha channel which would explain why previously transparent area's appear totally black. If I use the following line instead, I am shown the transparent area's gl_FragColor = vec4(0,1,0,1)*vec4(texture2D(texSampler,texCoord).aaa,1); How can I retain the transparency after this modification to the colour? I have seen various things about a .w property, and also luminous, but my tweaks with those and the .aaa property are not working XD

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  • C Problem with Compiler?

    - by Solomon081
    I just started learning C, and wrote my hello world program: #include <stdio.h> main() { printf("Hello World"); return 0; } When I run the code, I get a really long error: Apple Mach-O Linker (id) Error Ld /Users/Solomon/Library/Developer/Xcode/DerivedData/CProj-cwosspupvengheeaapmkrhxbxjvk/Build/Products/Debug/CProj normal x86_64 cd /Users/Solomon/Desktop/C/CProj setenv MACOSX_DEPLOYMENT_TARGET 10.7 /Developer/usr/bin/clang -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.7.sdk -L/Users/Solomon/Library/Developer/Xcode/DerivedData/CProj-cwosspupvengheeaapmkrhxbxjvk/Build/Products/Debug -F/Users/Solomon/Library/Developer/Xcode/DerivedData/CProj-cwosspupvengheeaapmkrhxbxjvk/Build/Products/Debug -filelist /Users/Solomon/Library/Developer/Xcode/DerivedData/CProj-cwosspupvengheeaapmkrhxbxjvk/Build/Intermediates/CProj.build/Debug/CProj.build/Objects-normal/x86_64/CProj.LinkFileList -mmacosx-version-min=10.7 -o /Users/Solomon/Library/Developer/Xcode/DerivedData/CProj-cwosspupvengheeaapmkrhxbxjvk/Build/Products/Debug/CProj ld: duplicate symbol _main in /Users/Solomon/Library/Developer/Xcode/DerivedData/CProj-cwosspupvengheeaapmkrhxbxjvk/Build/Intermediates/CProj.build/Debug/CProj.build/Objects-normal/x86_64/helloworld.o and /Users/Solomon/Library/Developer/Xcode/DerivedData/CProj-cwosspupvengheeaapmkrhxbxjvk/Build/Intermediates/CProj.build/Debug/CProj.build/Objects-normal/x86_64/main.o for architecture x86_64 Command /Developer/usr/bin/clang failed with exit code 1 I am running xCode Should I reinstall DevTools?

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  • Detecting long held keys on keyboard

    - by Robinson Joaquin
    I just want to ask if can I check for "KEY"(keyboard) that is HOLD/PRESSED for a long time, because I am to create a clone of breakout with air hockey for 2 different human players. Here's the list of my concern: Do I need other/ 3rd party library for KEY HOLDS? Is multi-threading needed? I don't know anything about this multi-threading stuff and I don't think about using one(I'm just a NEWBIE). One more thing, what if the two players pressed their respective key at the same time, how can I program to avoid error or worse one player's key is prioritized first before the the key of the other. example: Player 1 = W for UP & S for DOWN Player 2 = O for UP & L for DOWN (example: W & L is pressed at the same time) PS: I use GLUT for the visuals of the game.

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  • How can you print a text file via gedit from the command line?

    - by dan
    I'd like to use gedit or some similar program just as a page formatter and pipe some text through it and onto the printer. | lpr just doesn't cut it in the presentation department. The printed output is subpar, even if I try to tinker with the margin and font size options. But I like the way text looks like when printed from gedit. Is there a way to have the best of both worlds and use a command line pipeline to print a text file with gedit-quality formatting?

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