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Articles indexed Thursday June 30 2011

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• What programming language was used to develop Windows OS?

  - by nardo

  I am very new to programming and I have started to learn programming just last week. I am still having trouble understanding about programming languages, especially what to use in a particular system. My first language is Java and its the only programming language I have experience with. I know there are a lot of programming languages out there but I am so curious what programming language was used to develop Windows? Is Java can be used to develop an OS?

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• Quitting a small start-up where you are a primary developer?

  - by programmx10

  Just curious to hear from other people who may have been in similar situations. I work for a small startup (very small) where I am the main developer for a major part of the app they are building, the other dev they have does a different area of work than I do so couldn't take over my part. I've been with the company 5 months, or so, but I am looking at going to a more stable company soon because its just getting to be too much stress, overtime, pressure, etc for too little benefit and I miss working with other developers who can help out on a project. The guy is happy with my work and I think I've helped them get pretty far but I've realized I just don't like being this much "on the edge" as its hard to tell what the direction of the company is going to be since its so new. Also, even though I'm the main dev for the project, I would still only consider myself a mid-level dev and am selling myself as such for the new job search. Just to add more detail, I'm not a partner or anything in the company and this was never discussed, so I just work on a W2 (with no benefits of course). I work at home so that makes it easier to leave, I guess, but I don't want to just screw the guy over but also don't want to be tied in for too long. Obviously I would plan to give 2 weeks notice at least, but should I give more? How should I bring up the subject because I know its going to be a touchy thing to bring up. Any advice is appreciated UPDATE: Thanks everyone for posting on this, I have now just completed the process of accepting an offer with a larger company and quitting the startup. I have given 2 weeks notice and have offered to make myself available after that if needed, basically its a really small company at this point so it would only be 1 dev that I would have to deal with... anyways, it looks like it may work out well as far as me maintaining a good relationship with the founder for future work together, I made it out to be more of a personal / lifestyle issue than about their flaws / shortcomings which definitely seems to help in leaving on a good note

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• Project Management Tool for developers and sysadmins: shared or separate?

  - by David

  Should a team of system administrators who are on a software development project share a project management tool with the developers or use their own separate one? We use Trac and I see the benefit in sharing since inter-team tasks can be maintained by a single system where there may be cross-over or misfiled bugs (e.g. an apparent bug which turns out to be a server configuration issue or a development cycle which needs a server to be configured before it can start) However sharing could be difficult since many system administration tasks don't coincide with a single development milestone if at all. So should a system administration team use a separate PM Tool or share the same one with the developers? If they should share, then how?

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• What constitutes "commercial purposes"?

  - by RoboShop

  I'm looking at this license. It says that I can use it for "non-commercial purposes". What does that mean? I see in Stack Exchange, under Network Profile there is that graph that tracks your points across your Stack Exchange accounts. It uses a control called HighCharts which have a paid and Creative Commons licensed version. So would Stack Overflow constitute a commercial site? We don't pay to use this site, but obviously the site makes money from ads, etc. Then again, there's a lot of sites that have ads who won't necessarily make a profit, it may only be subsiding their costs. But even then, you could argue that even if it is only subsiding their costs, a lot of IT companies run at a loss in order to build a big enough customer base. So where is the line here? Is it any website on the internet? Is it any website that has ads? Is it any website that turns over a profit?

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• what is itunes result sorted by ?

  - by NemesisII

  This is my App on Itunes: http://itunes.apple.com/us/app/buddy-calculator/id445261163?mt=8 My app Key word is : "calculator scientific calc equation math mathematics unit converter conversion statistic algebra" But when I search "Calculator" on Itunes, my app is not appeared (in first two pages). So I want to ask a question that how to improve the rank of my app , and what is the searched result sorted by (new first, vote or downloaded or ...) ? If I want to improve the rank, how can I do, does it cost fee or something ? Thanks you very much ^^ !

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• To display the field values submitted with AJAX [closed]

  - by work

  Here is the code:I want to post the field values entered in this code to the page ajaxpost.php using Ajax and then do some operations there. What would be code required to be written in ajaxpost.php <html> <head> <script type="text/javascript"> function loadXMLDoc() { var xmlhttp; if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { document.getElementById("myDiv").innerHTML=xmlhttp.responseText; } } var zz=document.f1.dd.value; //alert(zz); var qq= document.f1.cc.value; xmlhttp.open("POST","ajaxpost.php",true); xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded"); xmlhttp.send("dd=zz&cc=qq"); } </script> </head> <body> <h2>AJAX</h2> <form name="f1"> <input type="text" name="dd"> <input type="text" name="cc"> <button type="button" onclick="loadXMLDoc()">Request data</button> <div id="myDiv"></div> </form> </body> </html>

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• PDF thumbnails don't work

  - by Sergey

  For a reason I don't know my ubuntu doesn't show thumbnails for pdf. in gconf-editor -- /desktop/gnome/thumbnailers: application@pdf/command = "evince-thumbnailer -s %s %u %o" application@pdf/enable = "True" from console evince-thumbnailer file.pdf out.png works perfectly What can be wrong?? when I installed gnome3 thumbnails worked but everything else didnt. when returned to gnome2.3 - no thumbnails.

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• Getting Wacom Bamboo Pen + Touch pressure sensitivy in GIMP

  - by Bart van Heukelom

  I've installed my Wacom Bamboo Pen + Touch (CTH-460) in Ubuntu (at least on one system, not another) and the pen works well for controlling the mouse cursor. However, I can't get pressure sensitivity to work in GIMP. I have 4 extra devices in the input devices settings screen now, two of which are the pen and eraser. I've set them both from Disabled to Screen, and left the default settings intact. However, after saving I still don't see any pressure options in the brush tool's options. I've also tried setting the mode to Window instead, but it makes no difference regarding pressure sensitivity. There are no other modes. The pressure works out-of-the-box in Blender (grease pen) so it must be something in GIMP. What can be wrong? Why don't the options appear? How can I debug this?

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• Broadcom STA wireless driver frezees

  - by Srki

  Upon updating my 10.10 netbook to 11.04 on the first startup it froze. I checked the forums and found that disabling wlan in BIOS fixes the problem so I did that and it worked, system was ok and it didn't freeze but then I had no wireless. I know that Broadcom STA driver is to blame cause I removed it from "additional drivers" and enabled back in bios wlan and everything worked fine (exept no wireless cause no driver is activated). Enabling Broadcom STA in the additional drivers again and restarting wireless was up and it found my network and connected to it but in a matter of seconds netbook froze. Can you please help me...

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• Dell xps l502 optimus ... stuck at black screen after installing bumblebee

  - by Abdul Azzawi

  I am facing a problem after installing bumblebee when I try to start ubuntu normally the device get stuck on a black screen Can any one help me with the right configuration for the graphic card ... All i need is to run with full desktop effects currently even compizconfig effects arent working Also what should I have in the blacklist or is it correct the way bumblebee does it Running ubuntu Natty 11.04 32 bit Thanks

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• Ignore "Bad: new and old password are too similar"

  - by user999

  I receive this message when trying to change my password: "Bad: new and old password are too similar" The passwords' "similarity" is irrelevant for my needs, so I'd like to bypass this. I tried sudo passwd $my_username I thought this had worked because I got a message: passwd: password updated successfully However, the password change has no effect after leaving the terminal, and my old password is still the only one recognized. Any ideas? thanks

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• Screen corruption with 946G / 82945G/GZ

  - by Ferdinandhi

  Since version 10.04 I have problems with Ubuntu (I think) my graphics card. This problem arises especially when working with graphics or CPU usage much. The problem is that it breaks1 the GUI as you see in the ![image and the entire computer is very slow: I'm running Ubuntu 11.04 and Intel graphics card 945G x86/MMX/SSE2 I used Unity and Gnome 3 with the same results. lspci--- 00:02.0 VGA compatible controller: Intel Corporation 82945G/GZ Integrated Graphics Controller (rev 02)

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• USA keyboard layout keeps getting added on login

  - by Scott Severance

  I use the USA International keyboard layout. Every time I log in, the USA layout gets added to my list of layouts, which causes the keyboard layout indicator to be displayed. How can I stop the USA layout from being added? Additional info: I'm running Natty. Until recently, I had all four layout slots filled. Recently I changed from SCIM to iBus. With this change, I no longer need multiple layouts since iBus better handles my needs. So, I don't want both indicators (iBus and Keyboard layout) showing up.

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• Computer freezes up

  - by Namaachi

  I am using the latest Ubuntu OS and up-to-date Chrome browser. Occasionally when I am working at a 5 hour stretch, the computer will freeze up completely and I will have to close down manually and reboot. When this happens I lose the material I have been working on as I cannot save it. And I often receive a notice at this time saying that my profile is not available or that I do not have a profile. I am an Ubuntu user not a technician and do not know what to do about this problem.

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• How can I reach over 100% volume with a keyboard shortcut?

  - by suli8

  sometimes the sound of videos isn't enough for me. so i reach the sound indicator , over sound preferences and change it to a level higher than 100%. the question is how can i do it from the keyboard? now i can control the volume from the keyboard but it's maximum is 100%. is there a way to do that? EDIT 1: how to use amixer to do it? (as Lyrositor suggested) EDIT2: the closest answer , as Jo-erland, suggested is to set a hotkey to bring up the gnome-volume-control, and then to use left and right arrows to change volume also beyond the 100% mark. any other suggestions, to make this 1 step only? is it possible to set a hotkey to do a sequence of commands ?

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• Games installed from repos won't start

  - by Shauna

  I'm running Natty (upgraded from Maverick) with Gnome 3 (from the Gnome 3 PPA, Unity removed), and have recently found that some of my games from the repos no longer work. When I go to start them, I get the message Failed to launch [app name]. Failed to execute child process [app name] (no such file or directory). I've so far found this on Gweled and PyScrabble. Other games (Mines, Sudoku, Mahjongg), as well as other applications have opened just fine. Gweled used to open fine until recently. Any ideas on how to fix this?

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• MacOSX VirtualHost: "You don't have permission to access / on this server" error

  - by David Casillas

  The Apache instalation of MacOSX is running Ok. I have tried to create a VirtualHost called test.local, but as soon as I uncomment from /private/etc/apache2/httpd.conf the line Include /private/etc/apache2/extra/httpd-vhosts.conf , and try to access test.local virtualhost I get an error "You don't have permission to access / on this server". The VirtualHost configuration in /private/etc/apache2/extra/httpd-vhosts.conf is: <VirtualHost *:80> ServerName test.local DocumentRoot "/Users/username/Sites/Test/public" <Directory "/Users/username/Sites/Test/public"> Options Indexes FollowSymLinks Includes AllowOverride All Order allow,deny Allow from all </Directory> </VirtualHost> I have also include the VirtualHost in hosts file: 127.0.0.1 test.local

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• How can I identify unknown query string fragments that are coming to my site?

  - by Jon

  In the Google Analytics content overview for a site that I work on, the home page is getting many pageviews with some unfamiliar query string fragments, example: /?jkId=1234567890abcdef1234567890abcdef&jt=1&jadid=1234567890&js=1&jk=key words&jsid=12345&jmt=1 (potentially identifiable IDs have been changed) It clearly looks like some kind of ad tracking info, but noone who works on the site knows where it comes from, and I haven't been able to find any useful information from searching. Is there some listing of common query string keys available anywhere? Alternatively, does anyone happen to know where these keys (jkId, jt, jadid, js, jk, jsid and jmt) might come from?

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• url mod_rewrite

  - by Pritam Borkar

  I had an e-commerce website hosted on http://mydomain.com/beta for more than a year, eventually I decided to move the website to root http://mydomain.com I had done quite a lot of link postings to forums etc, when my site used to be hosted in the sub-dir /beta . Is there any way to do a mod_rewrite by which all the old links that I have posted do not return as broken links since now longer the site is hosted in /beta and is now hosted on the site root. I did read that mod_rewrite can help resolve this issue, but also read about that this has to be done with care. Just a tip that this site is using Friendl URL.

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• ClickThrough on Google Webmaster Tool and Traffic Source in Google Analytics

  - by Svetlana

  I'm new to SEO and website management, but eager to learn. I manage a newly revamped site and I'm tracking it on Google Analytics and in Google Webmaster tools. The Webmaster tools show that I get about 3200 impressions and 180 click through's a week. Google Analytics show that no traffic comes from search engins, all of the traffic is direct. On average, I get about 60-80 visitors a day, shouldn't Google Analytics show at least a few of those visitors as having come from the search engines?. What does that discrepancy mean? I can't seem to wrap my mind around it... Thank you in advance, Svetlana

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• Drupal site Instant Messaging [migrated]

  - by pthurmond

  I am trying to find a module or a standalone solution that I can turn into a module that will allow me to have an instant messaging system like Facebook does on a Drupal site that I am working on. I have never setup a chat system before. My particular requirements are rather stringent. It needs to be a solution where we host the chatting server (if one is needed separate from the website itself). It must use the site's login state (can't use an external system at all, that means no GTalk, Yahoo IM, or AIM). It also must be able to handle up to 1,000 users at any given time. I have looked through the Drupal community and I tried the DXMPP module, but it requires Jquery UI 1.8 and that doesn't work with all of the other things that my site uses (such as Homebox). We do have a Jabber server already setup and ready to go. Does anyone have any thoughts or options here? Thanks! EDIT: We are using Drupal 6.

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• Scrolling Box2D DebugDraw

  - by onedayitwillmake

  I'm developing a game using Box2D (javascript implementation - Box2DWeb), and I would like to know how I can pan the debug draw. I know the usual answer is - don't use debug draw, it's just for debugging. I'm not, however not all my objects are on the same screen, and i'd like to see where they are in the physics representation. How can I pan the debug drawing? As you can see the debug draw stuff, is show on the top left, but it only shows a small part of the world. Here is an example of what I mean: http://onedayitwillmake.com/ChuClone/ The game is open source, If you'd like to poke through and note something that perhaps i'm doing something that is obviously wrong: https://github.com/onedayitwillmake/ChuClone

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• iTunes RSS Feed returning max. 100 items instead of 300

  - by TheEye

  I tried the iTunes RSS generator at http://itunes.apple.com/rss/generator/ to download the newest 300 games, which gave me the RSS Feed URL http://itunes.apple.com/us/rss/newapplications/limit=300/genre=6014/xml. However, only 100 are returned, and alphabetically sorted, so the list stops at the letter E ... Did Apple restrict the amount of items one could get without updating their RSS Feed Generator? Or am I missing something?

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• Remove objects from different environments

  - by Fred

  I have an R script file that executes a second R script via: source("../scripts/second_file.R") That second file has the following lines: myfiles <- list.files(".",pattern = "*.csv") ... rm(myfiles) When I run the master R file I get: > source("../scripts/second_file.R") Error in file.remove(myfiles) : object 'myfiles' not found and the program aborts. I think this has something to do with the environment. I looked at ?rm() pages but less than illuminating. I figure I have to give it a position argument, but not sure which.

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• Ant build classpath jar generates "error in opening zip file"

  - by Uberpuppy

  I have a project built in eclipse with a dependencies on 3rd party jars. I'm trying to generate a suitable build file for ant - using eclipses built-in export-ant buildfile feature as a starting block. When I run the build target I get the following error: [javac] error: error reading /base/repo/FabTrace/lib/apache/geronimo/specs/geronimo-j2ee-management_1.0_spec/1.0/geronimo-j2ee-management_1.0_spec-1.0.jar; error in opening zip file And the whole build file (auto-generated by eclipse) looks like this: (NB: the error above always references the first jar listed in the classpath) <project basedir="." default="build" name="FabTrace"> <property environment="env"/> <property name="ECLIPSE_HOME" value="/opt/apps/eclipse"/> <property name="debuglevel" value="source,lines,vars"/> <property name="target" value="1.5"/> <property name="source" value="1.5"/> <path id="JUnit 4.libraryclasspath"> <pathelement location="${ECLIPSE_HOME}/plugins/org.junit4_4.5.0.v20090824/junit.jar"/> <pathelement location="${ECLIPSE_HOME}/plugins/org.hamcrest.core_1.1.0.v20090501071000.jar"/> </path> <path id="FabTrace.classpath"> <pathelement location="bin"/> <pathelement location="lib/apache/geronimo/specs/geronimo-j2ee-management_1.0_spec/1.0/geronimo-j2ee-management_1.0_spec-1.0.jar"/> <pathelement location="lib/apache/geronimo/specs/geronimo-jms_1.1_spec/1.0/geronimo-jms_1.1_spec-1.0.jar"/> <pathelement location="lib/commons-collections/commons-collections/3.2/commons-collections-3.2.jar"/> <pathelement location="lib/commons-io/commons-io/1.4/commons-io-1.4.jar"/> <pathelement location="lib/commons-lang/commons-lang/2.1/commons-lang-2.1.jar"/> <pathelement location="lib/commons-logging/commons-logging/1.1/commons-logging-1.1.jar"/> <pathelement location="lib/commons-logging/commons-logging-api/1.1/commons-logging-api-1.1.jar"/> <pathelement location="lib/javax/activation/activation/1.1/activation-1.1.jar"/> <pathelement location="lib/javax/jms/jms/1.1/jms-1.1.jar"/> <pathelement location="lib/javax/mail/mail/1.4/mail-1.4.jar"/> <pathelement location="lib/javax/xml/bind/jaxb-api/2.1/jaxb-api-2.1.jar"/> <pathelement location="lib/javax/xml/stream/stax-api/1.0-2/stax-api-1.0-2.jar"/> <pathelement location="lib/junit/junit/4.4/junit-4.4.jar"/> <pathelement location="lib/log4j/log4j/1.2.15/log4j-1.2.15.jar"/> <pathelement location="lib/apache/camel/camel-jms-2.0-M1.jar"/> <pathelement location="lib/spring/spring-2.5.6.jar"/> <pathelement location="lib/apache/camel/camel-bundle-2.0-M1.jar"/> <pathelement location="lib/backport-util-concurrent/backport-util-concurrent-3.1.jar"/> <pathelement location="lib/commons-pool/commons-pool-1.4.jar"/> <pathelement location="lib/apache/camel/camel-activemq-1.1.0.jar"/> <pathelement location="lib/apache/activemq/activemq-camel-5.2.0.jar"/> <pathelement location="lib/jencks/jencks-2.2-all.jar"/> <pathelement location="lib/jencks/jencks-amqpool-2.2.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/activemq-all-5.3.1.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/lib/optional/xbean-spring-3.6.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/lib/activemq-core-5.3.1.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/lib/camel-jetty-2.2.0.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/lib/web/jetty-6.1.9.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/lib/web/jetty-util-6.1.9.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/lib/web/jetty-xbean-6.1.9.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/lib/optional/activemq-optional-5.3.1.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/lib/web/geronimo-servlet_2.5_spec-1.2.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/lib/optional/spring-beans-2.5.6.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/lib/optional/spring-context-2.5.6.jar"/> <pathelement location="lib/activemq/apache-activemq-5.3.1/lib/optional/spring-core-2.5.6.jar"/> <path refid="JUnit 4.libraryclasspath"/> </path> <target name="init"> <mkdir dir="bin"/> <copy includeemptydirs="false" todir="bin"> <fileset dir="src/main/java"> <exclude name="**/*.launch"/> <exclude name="**/*.java"/> </fileset> </copy> <copy includeemptydirs="false" todir="bin"> <fileset dir="src/test/java"> <exclude name="**/*.launch"/> <exclude name="**/*.java"/> </fileset> </copy> <copy includeemptydirs="false" todir="bin"> <fileset dir="config"> <exclude name="**/*.launch"/> <exclude name="**/*.java"/> </fileset> </copy> </target> <target name="clean"> <delete dir="bin"/> </target> <target depends="clean" name="cleanall"/> <target depends="build-subprojects,build-project" name="build"/> <target name="build-subprojects"/> <target depends="init" name="build-project"> <echo message="${ant.project.name}: ${ant.file}"/> <javac debug="true" debuglevel="${debuglevel}" destdir="bin" source="${source}" target="${target}"> <src path="src/main/java"/> <classpath refid="FabTrace.classpath"/> </javac> <javac debug="true" debuglevel="${debuglevel}" destdir="bin" source="${source}" target="${target}"> <src path="src/test/java"/> <classpath refid="FabTrace.classpath"/> </javac> <javac debug="true" debuglevel="${debuglevel}" destdir="bin" source="${source}" target="${target}"> <src path="config"/> <classpath refid="FabTrace.classpath"/> </javac> </target> </project> (I know there's eclipse specific stuff in here. But I get the same results with or without it.) I've done ye old google search and trawled around without success. I can confirm that all the jars do really exist. I've also tried from the commandline and as sudo - again, same results. Any help would be greatly appreciated. Cheers

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