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• Setting Up GLFW3 in Visual Studio

  - by sm81095

  I decided a couple of days ago that I was going to start trying to develop games in C++ with OpenGL, instead of C# Monogame like I have been doing for a while. I was looking around for libraries to use, to make OpenGL a little easier to use. I settled on GLEW and GLFW. GLEW was a super easy copy/paste, but GLFW3 was not. After looking around for a while and fighting with CMake, I got the GLFW2.lib file created, and I added the additional include directories, library directories, and linked my program to the glfw3.lib file I just created. The problem is, I get these linker errors when I try to run or build my program: Error 1 error LNK2019: unresolved external symbol _glfwInit referenced in function _main C:\Codex Interactive\Projects\OGLTest\OGLTest\test.obj OGLTest Error 2 error LNK2019: unresolved external symbol _glfwTerminate referenced in function _main C:\Codex Interactive\Projects\OGLTest\OGLTest\test.obj OGLTest Error 3 error LNK2019: unresolved external symbol _glfwSetErrorCallback referenced in function _main C:\Codex Interactive\Projects\OGLTest\OGLTest\test.obj OGLTest and 10 other LNK2019 errors, all talking about some glfw method, as well as: Error 14 error LNK1120: 13 unresolved externals C:\Codex Interactive\Projects\OGLTest\Debug\OGLTest.exe 1 1 OGLTest at the very bottom of the error list. I've looked up most of these errors on their own, and the solutions that I find either do nothing to solve the problem, or are people commenting on how dumb people are for not being about to solve this linker problem. Any assistance to solve these errors would be greatly appreciated. Info: I built GLFW3 on Cmake for Visual Studio 11, 32 bit and 64 bit, and both threw the same errors. The only extra libraries I linked were opengl32.lib, glu32.lib, and glfw3.lib Here is the test code (from GLFW3's latest tutorial): Code

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• Why is my eth0 getting a dynamic ip when it is configured to be static?

  - by sdek

  For some reason our office linux box is being assigned an ip address via dhcp and I don't know why. What is confusing to me is that when I check system-config-network it shows that my eth0 is setup to be a static ip address. And /etc/sysconfig/network-scripts/ifcfg-eth0 also shows it is setup to be a static ip, yet it is getting a different ip address than the one specified in the ifcfg-eth0. Let me know if you have any suggestions on or ideas on where I can look next. Here are a few details that might help you figure out what an idiot I am :) Fedora 11 Router in front of this box is running dhcp, starting at 10.42.1.100 This box is configured to be 10.42.1.50 (at least I think it is!), subnet 255.255.255.0 (which is same as the router's lan subnet) Instead of having the static IP, this box is getting assigned 10.42.1.100. Here are the ifcfg-eth0 details DEVICE=eth0 BOOTPROTO=none ONBOOT=yes TYPE=Ethernet USERCTL=no NM_CONTROLLED=no NETMASK=255.255.255.0 IPADDR=10.42.1.50 GATEWAY=10.42.1.1

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• How do i mitigate DDOS attacks on static servers?

  - by acidzombie24

  Here is a slightly different take on DDOS attacks. Rather than a server with dynamic content being attack i was curious how to deal with attacks on servers with STATIC CONTENT. This means cpu tends to not be an issue. Its either bandwidth or connection problems. How would i mitigate a DDOS attack knowing nothing about the attacker (for example country, ip address or anything else). I was wondering is shorting the timeout and increasing amount of connections is an acceptable solution? Or maybe that is completely useless? Also i would limit the amount of connections per IP address. Would the above help or be pointless? Keeping in mind everything is static checking for multiple request of the same page (html, css, js, etc) could be a sign of a attack. What are some measures i can take on a static content server?

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• Two routers, one off-site, same ISP-assigned static IP. A recipe for conflict?

  - by boost

  This is the situation I've inherited: There are two routers, one off-site. Both are connected to the ISP. The ISP assigns both of them the same static IP (or so it seems). Presumably, the network problems we're having are related to the idea that you can't have two instances of the same IP. So we rang up the folk off-site and told them to turn off the router. Now everything's working okay here. How do I get around this? Get another static IP? Figure out how to get the router to ask for a dynamic IP (as we're not using the static IP for anything)?

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• Use Multiple jQuery and jQuery UI Libraries

  - by Seth Duncan

  Is there a way to use multiple jQuery and jQuery UI Libraries in the same source? I know about noConflict and using multiple jQuery Libraries with this method, however is it possible to use multiple jQuery UI Libraries? Essentially I would like to use jQuery 1.2.6 and jQuery UI 1.6 together for a certain portion of the page that only works with those libraries and then for everything else use the latest jQuery Libraries of 1.4.2 and UI 1.8. Thanks, -Seth

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• Overinclusion of libraries C++

  - by wyatt

  I'm reading about how to put a makefile together, but no-one seems to mention what to do if your files require different sets of libraries, they all seem to use the same set of libraries for each file. Since it seems unlikely that every single file has the same libraries, I take it the list they use must amalgamate all of the libraries required across the project. I just wanted to know if there's any downside to including too many libraries, or if the compiler works out which ones are needed and ignores the rest? Thanks

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• Publish Static Content to WebLogic

  - by James Taylor

  Most people know WebLogic has a built in web server. Typically this is not an issue as you deploy java applications and WebLogic publishes to the web. But what if you just want to display a simple static HTML page. In WebLogic you can develop a simple web application to display static HTML content. In this example I used WLS 10.3.3. I want to display 2 files, an HTML file, and an xsd for reference. Create a directory of your choice, this is what I will call the document root. mkdir /u01/oracle/doc_root Copy the static files to this directory  In the document root directory created in step 1 create the directory WEB-INF mkdir WEB-INF In the WEB-INF directory create a file called web.xml with the following content <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/j2ee/dtds/web-app_2_3.dtd"> <web-app> </web-app> Login to the WebLogic console to deploy application Click on Deployments Click on Lock & Edit Click Install and set the path to the directory created in step 1 Leave default "Install this deployment as an application" and click Next Select a Managed Server to deploy to and click Next Accept the defaults and click Finish  Deployment completes successfully, now click the Activate Changes You should now see the application started in the deployments You can now access your static content via the following URL http://localhost:7001/doc_root/helloworld.html

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• Managing JS and CSS for a static HTML web application

  - by Josh Kelley

  I'm working on a smallish web application that uses a little bit of static HTML and relies on JavaScript to load the application data as JSON and dynamically create the web page elements from that. First question: Is this a fundamentally bad idea? I'm unclear on how many web sites and web applications completely dispense with server-side generation of HTML. (There are obvious disadvantages of JS-only web apps in the areas of graceful degradation / progressive enhancement and being search engine friendly, but I don't believe that these are an issue for this particular app.) Second question: What's the best way to manage the static HTML, JS, and CSS? For my "development build," I'd like non-minified third-party code, multiple JS and CSS files for easier organization, etc. For the "release build," everything should be minified, concatenated together, etc. If I was doing server-side generation of HTML, it'd be easy to have my web framework generate different development versus release HTML that includes multiple verbose versus concatenated minified code. But given that I'm only doing any static HTML, what's the best way to manage this? (I realize I could hack something together with ERB or Perl, but I'm wondering if there are any standard solutions.) In particular, since I'm not doing any server-side HTML generation, is there an easy, semi-standard way of setting up my static HTML so that it contains code like <script src="js/vendors/jquery.js"></script> <script src="js/class_a.js"></script> <script src="js/class_b.js"></script> <script src="js/main.js"></script> at development time and <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script> <script src="js/entire_app.min.js"></script> for release?

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• Add static ARP entries when network is brought up

  - by jozzas

  I have some pretty dumb IP devices on a subnet with my Ubuntu server, and the server receives streaming data from each device. I have run into a problem in that when an ARP request is issued to the device while it is streaming data to the server, the request is ignored, the cache entry times out and the server stops receiving the stream. So, to prevent the server from sending ARP requests to these devices altogether, I would like to add a static ARP entry for each, something like arp -i eth2 -s ip.of.the.device mac:of:the:device But these "static" ARP entries are lost if networking is disabled / enabled or if the server is rebooted. Where is the best place to automatically add these entries, preferably somewhere that will re-add them every time the interface eth2 is brought up? I really don't want to have to write a script that monitors the output of arp and re-adds the cache entries if they're missing. Edit to add what my final script was: Created the file /etc/network/if-up.d/add-my-static-arp With the contents: #!/bin/sh arp -i eth0 -s 192.168.0.4 00:50:cc:44:55:55 arp -i eth0 -s 192.168.0.5 00:50:cc:44:55:56 arp -i eth0 -s 192.168.0.6 00:50:cc:44:55:57 And then obviously add the permission to allow it to be executed: chmod +x /etc/network/if-up.d/add-my-static-arp And these arp entries will be manually added or re-added every time any network interface is brought up.

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• What is the easiest way to reference libraries in Qt projects?

  - by Jake Petroules

  I have two Qt4 Gui Application projects and one shared library project, all referenced under a .pro file with the "subdirs" template. So, it's like: exampleapp.pro app1.pro app2.pro sharedlib.pro Now, what I want to do is reference sharedlib from app1 and app2 so that every time I run app1.exe, I don't have to manually copy sharedlib.dll from its own folder to app1.exe's folder. I could set PATH environment variable in the projects window, but this isn't very portable. I've looked at putting the LIBS variable in the app1.pro file, but I'm not sure if that refers to statically linked libraries only - I've tried it with various syntaxes and it doesn't seem to work with shared libs.

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• Why do external Java libraries paths have to be refreshed in eclipse between starts?

  - by Jason

  For my school projects, I use the joda-time API for generating timestamps that are used for file names and logging. Getting eclipse to recognize the library is no problem. However, when I start eclipse between reboots, I get the red X in the project tree because the external API cannot be found, even though the file path has not changed. So each time, I have to go to the Libraries tab in Build Path to re-target the API. Frankly, this is getting to be a PIMA. So is there any way to have the path be permanent, so I don't have to do the Build Path rigmarole all the time?

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• What other Freemarker JSP Tag libraries are out-there?

  - by Mat Banik

  I have been using Freemarker for a while and found displaytag library very useful. I just wondering if there are any other libraries that could be used in similar means as displaytag, which have been very helpful to you in development: FTL page <#assign display=JspTaglibs["/WEB-INF/tlds/displaytag.tld"]/> <@display.table uid="items" name="items" pagesize=10 class="table"> <@display.column title="Category" property="category.name"/> <@display.column title="Delivery" property="delivery"/> </@display.table> Example of usage would be appreciated since most of the JSP tag libs don't have them.

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• get_called_class hack not working with eval-code.

  - by Ekampp

  Hi there. I am using a ge_called_class hack for allowing late static binding in php version 5.2 (found here). I have the following in my code: # db_record.php $ac = "ForumThread"; $objects = $ac::find("all"); This will not work in php 5.2 for some reason, so I have done this: # db_record.php $ac = "ForumThread"; eval("\$objects = {$ac}::find('all');"); This on the other hand will not work with the get_called_class function. I get an error that the file function can't read the evaled section of code. So how do I solve this problem? Best regards.

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• Compilation Error related

  - by aparna

  Given: 11. public static void test(String str) { 12. int check = 4; 13. if (check = str.length()) { 14. System.out.print(str.charAt(check -= 1) +", "); 15. } else { 16. System.out.print(str.charAt(0) + ", "); 17. } 18. } and the invocation: 21. test("four"); 22. test("tee"); 23. test("to"); What is the result? A. r, t, t, B. r, e, o, C. Compilation fails. D. An exception is thrown at runtime. Answer: C Can you explain why the compilation fails please?

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• How to install gluezilla-dev?

  - by Petr

  gluezilla was removed from latest Ubuntu repository for some silly reason. This library is necessary for mono web libraries to work properly (without gluezilla the web browser component doesn't work). How do I install it on Ubuntu? It has an incredible dependency tree of packages that were in older Ubuntu versions but for some reason aren't in current Ubuntu. Is there any way to install it other than downgrading to older Ubuntu?

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• What is a good C or Obj-C framework for manipulating Git Repositories?

  - by Andrew Theken

  What Obj-C/C libraries have you used for manipulating git repos in your Mac apps? I am working on a Mac app that I would like to be able to clone and modify git repos. Using git directly is not an option as it is GPL and I'd like to sell my app commercially without opening the source. I've seen libgit2, which I could link, but I'm not sure how to do that properly, and it doesn't appear to implement any of the things necessary for pushing/pulling repos over the git protocol.

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• Why aren't more desktop apps written with Qt?

  - by Dehumanizer

  As far as I know and have understood in my experience with Qt, it's a very good and easy to learn library. It has a very well designed API and is cross-platform, and these are just two of the many features that make it attractive. I'm interested to know why more programmers don't use Qt. Is there a deficiency which speaks against it? Which feature makes other libraries better than Qt? Is the issue related to licensing?

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• Creating a shared library that might be used with desktop applications and web projects

  - by dreza

  I have been involved in a number of MVC.NET and c# desktop projects in our company over the last year or so while also managing to kept my nose poked into other projects (in a read-only learning capacity of course). From this I've noticed that across the various projects and teams there is a-lot of functionality that has been well designed against good interfaces and abstractions. Because we tend to like our own work at times, I noticed a couple of projects had the exact same class, method copied into it as it had obviously worked on one and so was easily moved to a new project (probably by the same developer who originally wrote it) I mentioned this fact in one of our programmer meetings we have occasionally and suggested we pull some of this functionality into a core company library that we can build up over time and use across multiple projects. Everyone agreed and I started looking into this possibility. However, I've come across a stumbling block pretty early on. Our team primarily focuses on MVC at the moment and we have projects mainly in 2.0 but are starting to branch to 3.0. We also have a number of desktop applications that might benefit from some shared classes and basic helper methods. Initially when creating this DLL I included some shared classes that could be used across any project type (Web, Client etc) but then I started looking at adding some shared modules that would be useful in our MVC applications only. However this meant I had to include a reference to some Microsoft Web DLL's in order to leverage some of the classes I was creating (at this stage MVC 2.0). Now my issue is that we have a shared DLL that has references to web specific libraries that could also possibly be used in a client application. Not only that, our DLL referenced initially MVC 2.0 and we will eventually move onto MVC 3.0 for all projects. But alot of the classes in this library I expect to still be relevant to MVC 3 etc Our code within this DLL is separated into it's own namespaces such as: CompanyDLL.Primitives CompanyDLL.Web.Mvc CompanyDLL.Helpers etc etc So, my questions are: Is it OK to do a shared library like this, or if we have web specific features in it should we create a separate web DLL only targeted at a specific framework or MVC version? If it's OK, what kind of issues might we face when using the library that references MVC 2 in a MVC 3 project for example. I would be thinking that we might run into some sort of compatibility issue, or even issues where the developers using the library doesn't realize they need MVC 2.0 libraries. They might only want to use some of the generic classes etc The concept seemed like a good idea at the time, but I'm starting to think maybe it's not really a practical solution. But the number of times I've seen copied classes and methods across projects because they are proven tested code is a bit unnerving to be perfectly honest!

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• dun goofed the files in /usr/lib/x86_64-linux-gnu/

  - by tipu

  there was some weird package issue with (in my limited understanding) 32/64 bit libraries, so i went around making symlinks to the file my lamp installation expected to the ones that actually existed. i did this for a # of files in here: /usr/lib/x86_64-linux-gnu/ however php still ended up not working (separate issue) and now i believe i have a screwed up lib directory. is there a way to revert those library files?

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• Are there software options (preferabbly .NET) for doing distance and speed analysis of footballers moving on video?

  - by Anonymous Type

  Editing Question for Clarity Thanks for feedback so far, very insightful. I'm not sure how far along this part of the software community is, and what if any libraries exist for me to leverage from. Heres what I'm trying to do. Problem: Take an existing video of a game of rugby league. The Rugby League field is 100 metres long, 70 metres wide, and has white line markings every 10 metres running along the width of the field, as well as along the sidelines. Each side has 13 players on the field. Players on each team have identical jerseys that normally constrast strongly against background colours (green/brown field colour) and the referee's colour (usually yellow) and the designated water runner (orange). All players have a unique number in thick white lettering on their backs for identification. Video is taken with a high definition camera. Currently only one camera is used (2D) and existing video does not contain a foreground object of fixed spatial dimensions (as suggested in one answer for comparision measurements, however I could add this to future filming sessions if it is worthwhile). The player's do not run in a straight line 50% of the time but will go sideways on on a diagonal to the play the ball. The distance measured always starts from the spot of the previous "tackle", which ends where the player stops forward movement. It is not always possible to determine the players number from the video (facing other direction, sunlight, others standing in the way of the camera). But this isn't important as the software could allow for manual inputting of unknown "runs" at a later point after analysis. Determine the distance between two points (i.e. where the player started his "run" and where he finished it). I'm guessing that this would be quite doable if I manually marked the start and end point in the video. But how would I use landmarks in the background to determine the distance (assuming the person taking the video has kept it from jerking around). Question: Do software packages or libraries exist that are specialised enough to assist with writing analysis software to determine a sports persons distance travelled based on video taken of the performance?

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• Existent js libs for tileset / map loading and rendering?

  - by ylluminate

  I'm building an rts style overhead tileset game with JavaScript (particularly using Ember.js framework as a base). The map is so large that I'd very much like to be able to load and render the board and layered items in a Google Maps'esque. I'm curious as to whether there are existing libs that would be helpful and already well thought out in these regards vs trying to reinvent the wheel. Are there any such libraries or code examples that would be useful in this area of board / map management?

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• Best jQuery Libraries, Plug-Ins and Controls

  - by schnieds

  Worried About The Loss Of ASP.NET Controls in MVC? Don’t BeIf you are hesitant of moving to ASP.NET MVC because you are worried about losing all of the awesome ASP.NET controls that you are so used to using, don’t be. Wonderful client side controls already exist to replace most, if not all, of the most used ASP.NET controls (and these controls provide a MUCH BETTER user experience.) Here is a list of my favorite jQuery plug-ins and libraries that make user interface development so much easier... [Read More Here]Aaron Schniederhttp://www.churchofficeonline.com

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• problem on static link to libsmbclient.a

  - by Rex

  I've tried to develop a library using libsmbclient-dev to access net share folders. I wish to static link libsmbclient.a in my project , but a lot of error happens when I tried to static link it, it seems that the libsmbclient.a doesn't include some objects it needed , while everything goes well with libsmbclient.so. Because my project need to support various linux versions like centOS , Ubuntu ..., we wish not to install libsmbclient-dev everywhere. Can anybody tell me that if I can static link this libsmbclient.a in an easy way ? Or what kind of installation strategy should I take to cause less trouble to users? If anyone have use this library to develop projects before , can you tell me how you deal with this case? Thank you very much!!!

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• What are good JS libraries for game dev?

  - by acidzombie24

  If I decide to write a simple game both text and graphical (2d) what libraries would I use? (Assume we are using a HTML5 compatible browser) The main things I can think of Rendering text on screen Animating sprites (using images/css) Input (capturing the arrow keys and getting relative mouse positions) Perhaps some preloading resource or dynamically loading resources and choosing order Sound (but I am unsure how important this will be to me at first). Perhaps with mixing and chaining sounds or looping forever until stop. Networking (low priority) to connect a user to another or to continuously GET data without multiple request (I know this exist but I don't know how easy it is to setup or use. But this isn't important to me. Its for the question).

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• Naming convention: Final fields (not static)

  - by Zeeker

  Today I had a discussion with a co-worker about the naming of final fields in Java classes. In his opionion final fields should also be considered constants since their values won't change after the creation of the instance. This would lead to the following naming convention for final fields: public class Foo { private static final String BLA_BLA = "bla"; private final String BAR_BATZ; ... } In my opinion only static final fields should be considered constants while fields which are only final should follow the usual camelCase naming convention. public class Foo { private static final String BLA = "bla"; private final String barBatz; ... } Now I'm a bit uncertain since he is a far more experienced programmer than I am and I usually agree with his opinions and consider him a very good developer. Any input on this?

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