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• Determining Cost of API Calls

  - by Sam

  [This is a cross-post originally posted by me in SO. I think the question is more appropriate here.] I was going through the adwords API and came across their rate sheet - http://code.google.com/apis/adwords/docs/ratesheet.html . They charge $0.25 per 1000 API units and under the 'Operation Costs' sections list the cost (in API units) of different API calls. I am curious - based on what factors do they (and others API developers) calculate the cost of an API call? Is there any simple formula or a standard way to determine this? Note: When I say 'cost' of an API call, I don't mean the money but the API units. For example, how do you determine one API call costs 100 'units' and another 1000?

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• Free C# Online Classes

  Now you can learn C language online from expert teachers of WiZiQ. These are Free Online Classes on C# which are scheduled on different timings. You can join the class as per your convenience.  Below are some of the topics which are covered in the classes:Programming with Collections in C#.NETIntroduction to Complex NumbersC++ Fundamental 2C++ ProgrammingThe recordings of these classes are also available which you can view anytime. ...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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• Beyond Syntax Highlighting - What other code representations are possible today?

  - by Mathieu Hélie

  Despite GUI applications having been around for 30ish years, software is still written as lines of text instructions, for various valid reasons. But we've also found that manipulating these text instructions is mind-blowingly difficult unless we apply a layer of coloring on different words to represent their syntax, thus allowing us to quickly parse through these text files without having to read the whole words. But besides the Sublime Text minimap feature, I've yet to see any innovation in visual representation of code since colors came around on CRT monitors. I can think of one obviously essential representation that modern graphics technology allows: visual hierarchies for nested structures. If we make nested text slightly smaller than its outer context, and zoom on it when the cursor is focused on the line, then we will be able to browse huge files of nested statements very quickly. This becomes even more essential as languages based on closures and anonymous functions become filled with deep statements. Has anyone attempted to implement this in a text editor? Do you know of any otherwise useful improvements in representing code text graphically?

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• Simulating an object floating on water

  - by Aaron M

  I'm working on a top down fishing game. I want to implement some physics and collision detection regarding the boat moving around the lake. I would like for be able to implement thrust from either the main motor or trolling motor, the effect of wind on the object, and the drag of the water on the object. I've been looking at the farseer physics engine, but not having any experience using a physics engine, I am not quite sure that farseer is suitable for this type of thing(Most of the demos seem to be the application of gravity to a vertical top/down type model). Would the farseer engine be suitable? or would a different engine be more suitable?

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• Get aggregated view of data for entire website with Google Analytics

  - by crmpicco

  I have a website (www.ayrshireminis.com), which has three main sections under different directories, these are: /forum /galleries /contact I would like to have an aggregated view of the data for the whole website, but also for each section. What is the recommended approach for doing this? I believe I can create a web property that includes a profile for the entire website and duplicated filtered profiles, each section having an include filter. This is my gut instinct, but i'd like to know if there is another (better) way to do it? Maybe by having one account that includes a profile for the whole site and another profile with an include filter for the individual sections?

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• how to process document state transition?

  - by brick

  Imagine there is an application (ASP.NET MVC) that processes some documents. The document must be revised several times by different group of users. state/role rules: simple user can only publish document; (priority: low) userGroup1 can switch it to next state or reject it; (priority: higher) userGroup2 can confirm previous state and switch it to next gradual state or reject it; (priority: highest) How to implement such a workflow in ASP.NET MVC? How to impelement UI, views so that group with lower priority can both visually/technically perform only allowed transitions? Can I somehow extend that system: link? Do I need extras like service bus, event sourcing for that?

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• Do I really need to "learn" C# for XNA if I know Java?

  - by CJ Sculti

  so I want to start developing in XNA. As of now, I do not know C#, but I would consider myself "good" at Java. I have looked at some C# code and it looks almost IDENTICAL to Java... After looking at this, http://www.harding.edu/fmccown/java_csharp_comparison.html it looks like they are basically the same. Obviously some function names are going to be different, but I think I can handle it. Now if I want to learn game development in XNA, do I really need to "learn" and master C#, or can I just jump right in and learn along the way? I should also mention, I also know PHP which looks very similar...

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• What tasks should be explicitly mentioned in a job reference? [closed]

  - by Martin

  Glossary A job reference (see also the german version) is a letter from the (former) employer that states what the employee did, and how well he did it. There are oh so weird rules here on how to phrase stuff therein, but this is not what this question is about. Question I hope this can even be generally answered, but even if country/region specific, I think there is enough international know-how on this site to get useful answers for different regions. I was wondering how detailed the tasks a programmer / developer did should be spelled out in a job reference. (After all, they can be spelled out in all detail in a CV when applying for a new job.) So how much detail is usual for a job reference? Example Developed Windows applications in C++ or Developed Windows Desktop Applications using C++ with MS Visual Studio 2005 and MFC, utilising Boost 1.47 and specif library xyz, focusing on subsystem abc for numerical calculations of ... etc. What makes more sense?

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• build command by concatenating string in bash

  - by Lennart Rolland

  I have a bash script that builds a command-line in a string based on some parameters before executing it in one go. The parts that are concatenated to the command string are supposed to be separated by pipes to facilitate a "streaming" of data through each component. A very simplified example: #!/bin/bash part1=gzip -c part2=some_other_command cmd="cat infile" if [ ! "$part1" = "" ] then cmd+=" | $part1" fi if [ ! "$part2" = "" ] then cmd+=" | $part2" fi cmd+="> outfile" #show command. It looks ok echo $cmd #run the command. fails with pipes $cmd For some reason the pipes don't seem to work. When I run this script i get different error messages relating usually to the first part of the command (before the first pipe). So my question is whether or not it is possible to build a command in this way, and what is the best way to do it?

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• What would be the Query to get exact same result like Windows 7 start menu search for Programs using Windows Search service?

  - by Somnath

  I would like to implement the same search application like Windows 7 using microsoft.search.interop.dll, C#. Currently I'm using System.Kind property to retrieve information regarding the programs from Windows Search but the results set does not look same like Windows 7 search. Order of items are different. SELECT TOP 3 System.ItemNameDisplay, System.DateAccessed FROM SystemIndex WHERE System.ItemNameDisplay LIKE 'ad%' AND (System.Kind='Program') What would be the Query to get exact same result like Windows 7 start menu search for Programs? As an example : search token = 'ad' Windows 7 search result Adobe Reader 9, Add a device, Adobe Photoshop 7.0 Search Result from my code Adobe ImageReady 7.0 , Adobe Photoshop 7.0 , Adobe Reader 9

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• Troubleshooting Errors When Embedding Type Information (Doug Rothaus)

  Visual Studio 2010 has a new feature, Embed Interop Types, that can simplify application deployment and solve those pesky issues that can arise when using COM Interop and Primary Interop Assemblies (PIAs). If you’ve ever had to ship multiple versions of an application that automates Microsoft Office where the only difference between your published versions is the version of the PIA (to match different Office versions), then this feature is for you. You enable type embedding when you reference...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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• Vdpau performance in Precise with Unity 3d

  - by bowser

  vdpau seems to be broken in Precise under Unity 3d. CPU usage ranges around 50-70% for 1080p movies while same movies utilizes around 5-10% in Natty with vdpau enabled (under Unity3d) The card is Nvidia G105m. It doesn't seem to be a Nvidia driver problem because in gnome-shell everything works as expected and I have tried different versions of Nvidia drivers (295.20, 295.33, 295.40 and the latest 302.XX from xorg-edgers) The results are all the same, works in Gnome Shell but not in Unity 3d. Disabling syn to vbank works if movie is not in full screen mode, but it doesn't work for full screen. I have searched around and haven't found much info. I am wondering if others are experiencing the same problem and if there are some known work around that I have missed. Unity 3d is otherwise very nice in Precise, but this is a show stopping issue for me (literally). Thanks. I have filed a bug here https://bugs.launchpad.net/unity/+bug/993397

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• Strange GTK3 issue with Audacious and Evince (Document Viewer)

  - by Sman789

  I find that, in some GTK3 apps such as Audacious and Evince (Document Viewer), parts of the UI are pure black, which looks ugly and out-of-place. It is not intentional, as the screenshots on both websites show the app looking different. I only have this issue with the Adwaita GTK theme, but since it comes with Gnome 3 and is the main theme these apps are designed for, I'm guessing the problem is not simply the theme having some bug (though the Ubuntu package might). I have had this issue on two laptops now, running both Ubuntu 12.04 and Xubunu 12.10 with Gnome Shell and Adwaita. The screenshots below show the problem: Audcious's is visible in the search area around the text box, and behind the playlist tabs, and Evince's is visible in more or less the same position and around the document itself. Compare this from the Audacious homepage: With this image from my system: And Evince too:

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• How do I inject test objects when the real objects are created dynamically?

  - by JW01

  I want to make a class testable using dependency injection. But the class creates multiple objects at runtime, and passes different values to their constructor. Here's a simplified example: public abstract class Validator { private ErrorList errors; public abstract void validate(); public void addError(String text) { errors.add( new ValidationError(text)); } public int getNumErrors() { return errors.count() } } public class AgeValidator extends Validator { public void validate() { addError("first name invalid"); addError("last name invalid"); } } (There are many other subclasses of Validator.) What's the best way to change this, so I can inject a fake object instead of ValidationError? I can create an AbstractValidationErrorFactory, and inject the factory instead. This would work, but it seems like I'll end up creating tons of little factories and factory interfaces, for every dependency of this sort. Is there a better way?

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• Functional or non-functional requirement?

  - by killer_PL

  I'm wondering about functional or non-functional requirements. I have found lot of different definitions for those terms and I can't assign some of my requirement to proper category. I'm wondering about requirements that aren't connected with some action or have some additional conditions, for example: On the list of selected devices, device can be repeated. Database must contain at least 100 items Currency of some value must be in USD dollar. Device must have a name and power consumption value in Watts. are those requirements functional or non-functional ?

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• Search engine friendly, SEO blog software

  - by Steve

  Is there a comparison of the SEO capabilities of different blogging software/blogging plugins? I'd like things to be as optimised as possible. I have a basic grasp of SEO principles, probably 12-24 months old. I'm about to start a blog, after having a few previously. Also, I'm not up to speed on what pings are in the blogging world. What are they, and how do they work? I assume it is best to have blogging software that automatically pings.

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• Perl numerical sorting: how to ignore leading alpha character [migrated]

  - by Luke Sheppard

  I have a 1,660 row array like this: ... H00504 H00085 H00181 H00500 H00103 H00007 H00890 H08793 H94316 H00217 ... And the leading character never changes. It is always "H" then five digits. But when I do what I believe is a numerical sort in Perl, I'm getting strange results. Some segments are sorted in order, but then a different segment starts up. Here is a segment after sorting: ... H01578 H01579 H01580 H01581 H01582 H01583 H01584 H00536 H00537 H00538 H01585 H01586 H01587 H01588 H01589 H01590 ... What I'm trying is this: my @sorted_array = sort {$a <=> $b} @raw_array; But obviously it is not working. Anyone know why?

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• (Xubuntu) no touchpad or mouse on Aspire One D270

  - by Sman789

  I installed Xubuntu 12.10 on an Aspire One D270 using a Live USB. Initially, the live USB wouldn't boot, but by running sudo apt-get dist-upgrade on it (on a different machine), I upgraded the kernel and it now works perfectly. However, after installing Xubuntu from the stick onto the D270, neither the touchpad nor an external mouse works. If I use the keyboard to navigate to the mouse settings, the 'device' setting is greyed out. I don't see why the mouse should work perfectly when running from the live USB but not once installed to the machine...? Thanks for any help.

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• Dynamic User Specific CSS Selection at Run Time

  I had a cool question while I was at MIX. A developer needed the ability to have his site render pages using a CSS file selected based on some user specific criteria. ASP.NET 4 controls generate CSS friendly output and more and more we web developers are using CSS for layout etc. Using multiple CSS files in our site wide templates we can not only provide different aesthetic experiences but we can chage the style based on the device type (Printer ot Phone) or the special needs of the end user...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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• Palm take-over watch

  This is just in: HTC is said to be considering taking over Palm. That would be an interesting development, since HTC is one of the few parties we can trust not messing up webOS but actually using it as it’s supposed to work.Palm has an absolutely first-rate product in webOS, especially its user interface. As far as I’m concerned the Palm Pre is the only phone that’s (almost?) on a par with the iPhone when it comes to UI, although the system is completely different (and has supported multitasking...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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• Are there any tools for testing drag & drop Windows desktop applications?

  - by Andrew

  I need to develop a Windows desktop application (win32 API) which will use drag & drop extensively in many formats, including my own. I need to test it, for example, with CF_TEXT dragging, CF_RTF, CF_DIB, CF_METAFILEPICT, and many others. The tool needs to have the following features: Displaying the content of DataObject dragged into it with all available format viewers. Allows preparation of a few samples of different clipboard formats together in a single DataObject, ready for dragging into my app. Allows including my own format names into the formats list of the testing tool.

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• Storing Attendance Data in database

  - by Ali Abbas

  So i have to store daily attendance of employees of my organisation from my application . The part where I need some help is, the efficient way to store attendance data. After some research and brain storming I came up with some approaches . Could you point me out which one is the best and any unobvious ill effects of the mentioned approaches. The approaches are as follows Create a single table for whole organisation and store empid,date,presentstatus as a row for every employee everyday. Create a single table for whole organisation and store a single row for each day with a comma delimited string of empids which are absent. I will generate the string on my application. Create different tables for each department and follow the 1 method. Please share your views and do mention any other good methods

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• What is the need for 'discoverability' in a REST API when the clients are not advanced enough to make use of it anyway?

  - by aditya menon

  The various talks I have watched and tutorials I scanned on REST seem to stress something called 'discoverability'. To my limited understanding, the term seems to mean that a client should be able to go to http://URL - and automatically get a list of things it can do. What I am having trouble understanding - is that 'software clients' are not human beings. They are just programs that do not have the intuitive knowledge to understand what exactly to do with the links provided. Only people can go to a website and make sense of the text and links presented and act on it. So what is the point of discoverability, when the client code that accesses such discoverable URLs cannot actually do anything with it, unless the human developer of the client actually experiments with the resources presented? This looks like the exact same thing as defining the set of available functions in a Documentation manual, just from a different direction and actually involving more work for the developer. Why is this second approach of pre-defining what can be done in a document external to the actual REST resources, considered inferior?

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• Last chance to register to the Oracle FY14 Global Partner Kickoff (June 25, 2013)

  - by Julien Haye

  This is your last chance to register to the Oracle FY14 Global Partner Kickoff and to join us live/online tomorrow June 25, 2013 at 9:00am PDT / 5:00 pm GMT / 6:00pm CET! What to Expect: Watch Oracle Executives, including Oracle President, Mark Hurd, John Fowler, Thomas Kurian, and more outline the product strategy and direction for the company Learn about the different ways to accelerate sales and make money with Oracle through our full stack offering Participate in the conversation during the webcast via twitter using either @oraclepartners or #opn. Oracle Partner Kickoff Agenda Welcome & Executive Address Oracle Executives on Engineered Systems Selling to the C-Level Executive Innovation in Industries Partner Sales Call to Action Partner Pulse: Post Show Partner Discussion Watch it live at: OPN homepage OPN Facebook page For more information, email [email protected]. We look forward to you participation. Oracle EMEA PartnerNetwork Oracle FY14 Partner Kickoff Watch it live at: OPN homepage OPN Facebook page Tuesday, 25th June, 2013 9:00 am PT FY14 Partner Kickoff Speakers Mark Hurd President, Oracle Thomas Kurian EVP, Product Development, Oracle John Fowler EVP, Systems, Oracle

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• Install a Wii Game Loader for Easy Backups and Fast Load Times

  - by Jason Fitzpatrick

  We’ve shown you how to hack your Wii for homebrew software and DVD playback as well as how to safeguard and supercharge your Wii. Now we’re taking a peek at Wii game loaders so you can backup and play your Wii games from an external HDD. Latest Features How-To Geek ETC HTG Projects: How to Create Your Own Custom Papercraft Toy How to Combine Rescue Disks to Create the Ultimate Windows Repair Disk What is Camera Raw, and Why Would a Professional Prefer it to JPG? The How-To Geek Guide to Audio Editing: The Basics How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 Lord of the Rings Movie Parody Double Feature [Video] Turn a Webpage into an Asteroids-Styled Shooting Game in Opera Dolphin Browser Mini Leaves Beta; Sports New GUI, Easy Bookmarking, and More Updated Google Goggles Scans Faster; Solves Sudoku Puzzles Snowy Castle Retreat in the Mountains Wallpaper Fix TV Show Sorting Issues on iOS Devices

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