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• A pixel is not a pixel is not a pixel

  Yesterday John Gruber wrote about the upped pixel density in the upcoming iPhone (960x480 instead of 480x320), and why Apple did this. He also wondered what the consequences for web developers would be.Now I happen to be deeply engaged in cross-browser research of widths and heights on mobile phones, and can state with reasonable certainty that in 99% of the cases these changes will not impact web developers at all.The remaining 1% could be much more tricky, but I expect Apple to cater to this problem...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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• How do I change the default .htm file icon?

  - by Michael Clayton

  I really enjoy the look of UBUNTU. The only thing that I want to change is the default icon used for .html (.htm) files. I want to use the icon /usr/lib/firefox/browser/icons/mozicon128.png instead. I do not want to change any other visual element. Is there a practical way to accomplish this small change? edit: @Mitch, I've used assogiate in the past and although I was able to change the icon used for .mht files, I could not get it to change the .htm icon. @Anwar Shah, thanks for the information. I wish that it would work for me. Running 13.10 x86, after I do the copy of the icons, in the folders are a bunch of links to .svg files not actual graphics files. It does not appear that the second copy actually does anything on my system.

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• Does UX matter for enterprise software?

  - by Ryan

  I've come to notice that a lot of software that companies use for managing things like time, expenses, setting up phone systems, etc is very non-intuitive from a user experience point of view. I know personally I waste a lot of time just trying to figure out how to navigate these systems, especially if I don't have a co-worker close by who I can bug to help me out. The help files are usually just as bad as the user interface itself. Are companies that complacent or are there just not any comparable enterprise products out there which do the job for these sorts of tasks? It seems that on the consumer side there is plenty of market opportunity for creating better user experiences, but how about for enterprise software? Obviously a certain level of slickness is not going to matter to a company, but when a better UX design translates to time saved, it's hard to argue against that. Edit: I'm not referring to in-house applications, but rather off the shelf systems from large software companies.

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• CIO Magazine's State of the CIO and its Impact on Your EA

  - by david.olivencia(at)oracle.com

  CIO Magazine today released its State of the CIO report.  As most Enterpise Architects report to (or report very close to) the CIO, the report provides interesting insights as to where most CIOs minds and priorities are.  The information will allow Enterprise Architects  to better align plans, approaches, models, and stratagies. The report's summary can be found here:  http://assets.cio.com/documents/cache/pdfs/2011/dec15_gatefold.pdf   Specifically the article highlights: * How IT Makes A Difference * Critical Leadership Skills * Business Focused CIOs * Areas of Increasing Responsibility * Plans for 2015   Enterprise Architects what insights from this report will alter they way you successfully lead in 2011?   David Olivencia | Solution Director, Enterprise Architecture & Exa ServicesOracle Consulting Latin America and Caribbean

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• Why is email HTML stuck in the 90's?

  - by Sean Dunwoody

  (disclaimer - I've already tried asking this on StackOverflow, but apparently it was off topic. If the same is true here please let me know and I'll close/delete this question.) I've spent about a day putting together a frustrating email newsletter, using tables, inline styles etc. It feels a lot harder than it should be. I was just wondering, is there any reason why email clients have such poor support of HTML and CSS (CSS in particular)? I would have imagined they'd be scrambling to outdo each other in this department ... Is is a security thing (I can't really imagine why)? Or are they just lazy?

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• Network Multiplayer in Flash

  - by shadowprotocol

  Flash has come a long way in the last decade, and it's a well-kept secret getting a flash game to connect to a multi-client server for chat and/or basic avatar movement in real time. Why has the industry as a whole not made this a common-knowledge type of thing yet? We keep pushing to the web but I am finding it incredibly difficult gathering learning material on this subject. Sure, I can find multi-client server socket tutorials in various languages (using select statements and/or threads to handle multiple socket connections), but in regards to Flash applications inside of a browser? NOPE! Can everyone please share what they know? :] It's a subject I'd really love to get into but I'm afraid I just honestly don't know enough about how to do it. Thanks!

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• Performance tracking/monitoring in games

  - by vitaliy kotik

  Let's say I have an online game with a downloadable client / browser plugin. I want to track performance of my software and automatically send summary to the server. Let it be fps, latency, load time, physics step calc. time, whatever... I also want tools to perform data analysis: per session stats, per hardware stats, avgs, totals, diagrams, etc. So that I could see what are the real world hotspots / bottlenecks. Is there any common out-of-the-box / SaS solution?

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• Web Developer interview questions

  - by Baba

  I read an article today that listed some basic questions about web development: Describe how POST data was submitted to a server by a browser. Explain a number of HTTP status codes (except maybe 404 and 500). Explain SOLID or name a design pattern. Explain ways to improve a page load speed or user experience. The author says "if you can’t answer the questions above there are a lot of people who wouldn’t think of you as a Senior Web Developer." My questions are: How relevant are these questions in respect to real life web programming and scalability? How true is that statement? In other words, do you consider this knowledge a requirement to be considered a Senior Web Developer? I was able to answer all the questions, too easily it seemed, so I'm wondering whether it is effective to use these or similar questions to screen developers rather than asking them to write sample code.

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• Star Wars Roguelike Combines Star Wars and Old School ASCII Adventures

  - by Jason Fitzpatrick

  Mashup ASCII-based adventuring, Star Wars, and some sweet light saber sound effects, and you’ve got this old-school in-browser adventure game: Star Wars Roguelike. Play a Jedi or Sith and move about the ASCII world with simple keyboard commands. You’re not going to be blow away by the photo-realistic graphics, but you are going to be able to play it on your aging work computer. Hit up the link below to take the game for a spin. Star Wars Roguelike [via Boing Boing] How To Boot Your Android Phone or Tablet Into Safe Mode HTG Explains: Does Your Android Phone Need an Antivirus? How To Use USB Drives With the Nexus 7 and Other Android Devices

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• Gartner: Magic Quadrant for Corporate Performance Management Suites, 2012

  - by Mike.Hallett(at)Oracle-BI&EPM

  Hyperion clearly leads the pack again in Gartner’s analysis of the CPM / EPM market, saying; “Oracle is a Leader in CPM suites, with one of the most widely distributed solutions in the market. Oracle Hyperion Enterprise Performance Management is recognized by CFOs worldwide. The vendor has a well-established partner channel, with both large and smaller CPM SI specialists. Hyperion skills are also plentiful among the independent consultant community, given the well-established products. “ “Oracle continues to innovate, bringing incremental improvements across the portfolio as well as new financial close management, disclosure management and predictive planning additions. Furthermore, Oracle has improved integration of Hyperion with the Oracle BI platform, and has improved planning performance, enabling Hyperion Planning to use Oracle Exalytics In-Memory Machine.” For the full article see here: Gartner: Magic Quadrant for Corporate Performance Management Suites, 2012 And if you missed it, here is also the MQ for BI: Gartner: Magic Quadrant for Business Intelligence Platforms, 2012

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• How do I list installed software with the installed size?

  - by Lewis Goddard

  I would like to have a list the installed software on my machine, with the disk space consumed by them alongside. I would prefer to be able to order by largest/smallest, but that is not a necessity. I am the sort of person who will install software to try it, and never clean up after myself. As a result, my 7GB (Windows and my Data are on separate partitions, as well as a swap area) Ubuntu 11.04 partition is suffering, and has started regularly showing warning messages. I have cleaned my browser cache, as well as everything under Package Cleaner in Ubuntu Tweak, and am left with 149.81 MB off free space.

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• Firefox ignore GTK theme for localhost stuff

  - by Mario De Schaepmeester

  I know this is pretty much a duplicate of How can one make firefox ignore my GTK theme entirely?, but the answers on that one are no permanent solution. It works by launching firefox from the terminal. I would like to know a solution that works for every instance of firefox no matter how it was created. There is the possibility to edit the userContent.css file, but the settings you make randomly do not apply to some sites or in some situations, strangely, even with the !important added... I have a dark GTK theme and this results in some textboxes having a black background with black text with a userContent.css that has input, textarea { color: black !important; background-color: white !important; } Update I changed a setting in about:config from true to false, namely browser.display.use_system_colors. Everything appears normal and well now, for one exception: everything that runs on localhost. This includes PHPMyAdmin and a website I am making. I would like to know if there is a solution to this.

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• Does seeding torrents affect the harddisk RAM caching?

  - by satuon

  I've downloaded a lot of torrent files and while I'm seeding them, I've noticed that very often when I start the browser it's slow and the hard disk activity indicator is on. Usually when I start a program it gets cached in RAM and starting it again is very quick, and I have 3 GB of RAM so usually it stays cached nearly forever. But when my torrent client is seeding it seems that after an hour programs that I ran are no longer cached in RAM. I was thinking maybe it's because of the disk reads which the torrent client performs are cached and fill up RAM eventually. But I don't think they need to be, as they are read only once and are unlikely to be read again soon. So my questions are - is this the way I think, and if so is it possible in principle to prevent the disk reads from being cached? I can try to edit the source code of the program.

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• Ask the Readers: Favorite Web Clipping Tool?

  - by Jason Fitzpatrick

  Bookmarking is great if you want a link to visit later, but what if you want to save the page itself for later perusal? This week we want to hear all about your favorite web clipping tool and how you use it to read what you want, when you want it. Web clipping tools are simple tools (browser extensions, bookmarklets, etc.) that make it easy to clip text and multimedia elements from web pages in order to archive them and/or read them at a later date. Whether you clip to a bursting at the seams web-notebook or you clip to send to your Kindle, we want to hear about your favorite tools and how they fit into your reading workflow. Sound off in the comments and then make sure to check back on Friday for the What You Said roundup where we highlight popular picks and clever tips. HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS Use Your Android Phone to Comparison Shop: 4 Scanner Apps Reviewed How to Run Android Apps on Your Desktop the Easy Way

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• Can't boot Ubuntu after install Ubuntu

  - by Ramprasad

  I have downloaded Ubuntu 12.04.1 LTS 32 bit, burnt it on DVD and tried to install on my PC. My PC running in Windows 7 Ultimate 32 bit mounted on C: drive. Now I want install Ubuntu along with my Windows 7. When I boot Ubuntu through CD, It boots and Ubuntu install window opens. Ask "Try Ubuntu" and "Install Ubuntu". I go on "Install Ubuntu". Then I go on install Ubuntu with Windows (First Option) - install. It shows some blank screen with some lines, and shows "Please Remove installation media and close tray and press enter". Then PC restarts and Run Windows 7 same as before normally. But Ubuntu is not installed. How to solve this problem and install Ubuntu on my PC properly? Note: I am a Android Developer. So I need to install Ubuntu for my Android Development purpose.

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• T-SQL Tuesday #005: On Technical Reporting

  - by Adam Machanic

  Reports. They're supposed to look nice. They're supposed to be a method by which people can get vital information into their heads. And that's obvious, right? So obvious that you're undoubtedly getting ready to close this tab and go find something better to do with your life. "Why is Adam wasting my time with this garbage?" Because apparently, it's not obvious. In the world of reporting we have a number of different types of reports: business reports, status reports, analytical reports, dashboards,...(read more)

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• 11.04 radeon screen tearing oddity

  - by Kevin Qiu

  I have a mobility radeon 5850 running 11.04 and am running catalyst 11.10 drivers. I noticed that whenever I have two windows open, one of top of the other, scrolling results in minor screen tearing, usually around the border of the window on the bottom. When I minimize or close the bottom the tearing goes away. I have tear free desktop enabled and tried looking for this specific issue but couldn't find anyone else with it. It happens in both Unity and Classic. Is there any fix for this?

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• Error pages in ASP.NET

  - by koevoeter

  In ASP.NET you can retrieve the last unhandled exception via:(HttpContext.Current.)Server.GetLastError() // Server object is available as a property in Page and UserControl context This obviously only works in the same roundtrip. If you want to retrieve this information in your error page, you got a problem because the error page is not returned in the same roundtrip. The server responds with a redirect response and a new request to the error page is automatically sent. A common workaround would be to store the exception in your Session state from the Application_Error event in Global.asax. From ASP.NET 3.5 you can configure the redirect mode for error pages: <customErrors mode="On" defaultRedirect="~/Error.aspx" redirectMode="ResponseRewrite" /> This way the redirect response is not sent and the error page is returned right away. That implies that the browser is not aware of a page change and cannot reflect it in the address bar, so your original URL is not replaced with the URL of the error page, which might be what you actually want…

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• Developing for Chrome App/Android?

  - by Johnny Quest

  I have been developing for win7 mobile (XNA/silverlight and will continue to do so, love everything about it) but I wanted to branch a few of my more polished games to google app store online, and perhaps android(though not sure, as with all the different versions it makes learning/loading applications a bit tricky) What is the most versatile language to start learning from chrome apps/android: Java would be excellent for android, but could I port it to a web app for chrome? (and its close to C#) Flash would work for a web app as I can just embed it into a html page (have done actionscript before, didn't care much for the IDE though), but would it also work on android? or I guess there is always C/C++ but haven't heard much about that, though I think it works for both (though C++ does interest me) Any advice would be excellent, thanks.

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• Scrum: How to work on one story at a time

  - by Juergen

  I was nominated as scrum master in a new formed scrum team. We have already done some sprints. In the beginning I tried to make my team to work on one story at a time. But it didn't work. My team had difficulties to distribute the tasks in a way that they can work simultaneously on one story. Maybe we are doing something wrong? For example: we have a story to create a new dialog. We create the following tasks: Create Model classes Read model data from database Connect model classes with view Implement dialog handling Save data on close Test Documentation Solution Description Can theses tasks be done by more than one person at a time? The tasks - more or less - build upon each other. Or do we design the tasks in a wrong way?

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• How to uninstall a firefox plugin?

  - by HappyDeveloper

  I was trying to play minecraft in the browser, and I got asked to install a plugin called "IcedTea-Web Plugin (using IcedTea-Web 1.2 (1.2-2ubuntu1))" (something related to Java 6), which I can see now in Tools Addons Plugins. There was another plugin to install (for Java 7), I didn't know if I had to select one, so I just clicked Install or Accept. Now the game or java app only shows a black screen, so I thought I should uninstall the plugin and try installing the other one. But there doesn't seem to be a way to uninstall plugins through the firefox GUI. Any ideas?

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• Theoretically bug-free programs

  - by user2443423

  I have read lot of articles which state that code can't be bug-free, and they are talking about these theorems: Halting problem Gödel's incompleteness theorem Rice's theorem Actually Rice's theorem looks like an implication of the halting problem and the halting problem is in close relationship with Gödel's incompleteness theorem. Does this imply that every program will have at least one unintended behavior? Or does it mean that it's not possible to write code to verify it? What about recursive checking? Let's assume that I have two programs. Both of them have bugs, but they don't share the same bug. What will happen if I run them concurrently? And of course most of discussions talked about Turing machines. What about linear-bounded automation (real computers)?

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• Ping.eu

  - by Sarang

  Found an interesting resource thanks to a close friend. Ping.eu is a free service which would let you test various aspects related to networks which would typically be pain inducing doing it on your own. For seasoned network professional having a MAC address of their own instead of a name :) this might not be that useful. However for a layperson like me this an invaluable resource. These guys provide you with following services: Ping – Shows how long it takes for packets to reach host Traceroute – Traces the route of packets to destination host from our server DNS lookup – Look up DNS record WHOIS – Lists contact info for an IP or domain Port check – Tests if port is opened on specified IP Reverse lookup – Gets hostname by IP address Proxy checker – Detects a proxy server Mail relaying – Tests relaying capabilities of specified mail-server Bandwidth meter – Detects your download speed from our server Network calculator – Calculates subnet range by network mask Network mask calculator – Calculates network mask by subnet range Country by IP – Detects country by IP or hostname Unit converter – Converts values from one unit to another   Taken straight from their site. Thanks Ping.eu

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• Google Webmaster Tools Data Highlighter says "Failed to load data, please try again later"

  - by George Garside

  I seem to be unable to access the data highlighter in Google Webmaster Tools since I attempted to start a new highlight on a page. Clicking the red Start Highlighting button to open the tagger did nothing, so I refreshed. Now, the page loads without the middle content section, then a few seconds later shows the following error: Failed to load data, please try again later. I can't get any of the middle section to load, even the list of current pages/page sets that have been highlighted—this error shows. I thought it may be a Google service outage, but other sites' data highlighters work fine. It also seems coincidental that it stopped working after I attempted to start highlighting—I was able to list the existing pages and page sets fine before that, and still am able to access the service on other sites. I've tried clearing browser data and have tried Google Chrome as well—same problem. What's happened?

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• Using MVVM with Office365 and SharePoint 2010 REST API

  - by Sahil Malik

  SharePoint 2010 Training: more information I love JavaScript – people had pronounced this language dead a long time ago. But just like a chicken – which you eat before it’s born and after it’s dead, JavaScript – is being eaten all over the technical world, long after it’s dead! How nice! The coolest thing about JavaScript is that, There is no need for separate ActiveX controls, it is part of HTML/Browser It can interact with other DOM elements very very naturally It’s safe. And  it’s backwards and future compliant. It is no surprise thus that a number of libraries have emerged helping us work with JavaScript. But, JavaScript is not like C#. Notably, it has some biggies missing. For instance, Read full article ....

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