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• Why googling by keycaptcha gives results on reCAPTCHA? [closed]

  - by vgv8

  EDIT: I'd like to change this title to: How to STOP Google's manipulation of Google search engine presented to general public? I am frequently googling and more and more frequently bump when searching by one software product I am given instead the results on Google's own products. For ex., if I google by keyword keycaptcha for the "Past 24 hours" (after clicking on "Show search tools" -- "Past 24 hours" on the left sidebar of a browser) I am getting the Google's search results show only results on reCAPTCHA. Image uploaded later: Though, if confine keycaptcha in quotes the results are "correct" (well, kind of since they are still distorted in comparison with other search engines). I checked this during few months from different domains at different ISPs, different operating systems and from a dozen of browsers. The results are the same. Why is it and how can it be possibly corrected? My related posts: "How Gmail spam filter works?" IP adresses blacklisting Update: It is impossible for me to directly start using google.com as I am always redirected to google.ru (from google.com) by my ip-address "auto-detect location" google's "convenience". The google's help tells that it is impossible to switch off my location auto-detection because it is very helpful feature. There is a work-around to use google.com/ncr (to get google.com) (?anybody know what does it mean) to prevent redirection from google.com but even. But all results are exactly the same OK, I can search by quoted "keycaptcha", I am already accustomed to these google's quirks, but the question arises why the heck to burn time promoting someone's product if GOOGLE uses other product brands for showing its own interests/brands (reCAPTCHA) instead and what can be done with it? The general user will not understand that he was cheated and just will pick up the first (wrong) results Update2: Note that this googling behaviour: is independent on whether I am logged-in (or log-out-ed of) a google account, which account, on browser (I tried Opera, Chrome, FireFox, IE of different versions, Safari), OS or even domain; there are many such cases but I just targeted one concrete restricted example speciffically to to prevent wandering between unrelated details and peculiarities; @Michael, first it is not true and this text contains 2 links for real and significant results.. I also wrote that this is just one concrete example from many and based on many-month exp. These distortions happen upon clicking on: Past 24 hours, Past week, Past month, Past year in many other keywords, occasions/configurations of searches, etc. Second, the absence of the results is the result and there is no point to sneakingly substitute it by another unsolicited one. It is the definition of spam and scam. 3d, the question is not abt workarounds like how to write search queries or use another searching engines. The question is how to straighten the googling's results in order to stop disorienting general public about. Update: I could not understand: nobody reproduces the described by me behavior (i.e. when I click "Past 24 hours" link in google search searching for keycaptcha, the presented results are only on reCAPTCHA presented)? Update: And for the "Past week":

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• What common interface would be appropriate for these game object classes?

  - by Jefffrey

  Question A component based system's goal is to solve the problems that derives from inheritance: for example the fact that some parts of the code (that are called components) are reused by very different classes that, hypothetically, would lie in a very different branch of the inheritance tree. That's a very nice concept, but I've found out that CBS is often hard to accomplish without using ugly hacks. Implementations of this system are often far from clean. But I don't want to discuss this any further. My question is: how can I solve the same problems a CBS try to solve with a very clean interface? (possibly with examples, there are a lot of abstract talks about the "perfect" design already). Context Here's an example I was going for before realizing I was just reinventing inheritance again: class Human { public: Position position; Movement movement; Sprite sprite; // other human specific components }; class Zombie { Position position; Movement movement; Sprite sprite; // other zombie specific components }; After writing that I realized I needed an interface, otherwise I would have needed N containers for N different types of objects (or to use boost::variant to gather them all together). So I've thought of polymorphism (move what systems do in a CBS design into class specific functions): class Entity { public: virtual void on_event(Event) {} // not pure virtual on purpose virtual void on_update(World) {} virtual void on_draw(Window) {} }; class Human : public Entity { private: Position position; Movement movement; Sprite sprite; public: virtual void on_event(Event) { ... } virtual void on_update(World) { ... } virtual void on_draw(Window) { ... } }; class Zombie : public Entity { private: Position position; Movement movement; Sprite sprite; public: virtual void on_event(Event) { ... } virtual void on_update(World) { ... } virtual void on_draw(Window) { ... } }; Which was nice, except for the fact that now the outside world would not even be able to know where a Human is positioned (it does not have access to its position member). That would be useful to track the player position for collision detection or if on_update the Zombie would want to track down its nearest human to move towards him. So I added const Position& get_position() const; to both the Zombie and Human classes. And then I realized that both functionality were shared, so it should have gone to the common base class: Entity. Do you notice anything? Yes, with that methodology I would have a god Entity class full of common functionality (which is the thing I was trying to avoid in the first place). Meaning of "hacks" in the implementation I'm referring to I'm talking about the implementations that defines Entities as simple IDs to which components are dynamically attached. Their implementation can vary from C-stylish: int last_id; Position* positions[MAX_ENTITIES]; Movement* movements[MAX_ENTITIES]; Where positions[i], movements[i], component[i], ... make up the entity. Or to more C++-style: int last_id; std::map<int, Position> positions; std::map<int, Movement> movements; From which systems can detect if an entity/id can have attached components.

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• Kinect losing tracked players with Beta2 SDK

  - by Eric B

  So i'm creating a game using the Beta2 SDK for Kinect. The issue i am having is that in the middle of gameplay if another person enters the Kinects FOV it stops tracking the player and will not track anyone else for several minutes. Same deal if the player leaves the FOV and reenters it. Here is what im using to detect players. void nui_SkeletonFrameReady(object sender, SkeletonFrameReadyEventArgs e) { int playersAlive = 0; // reset lists skeletons = new Dictionary<int, SkeletonData>(); //create a new list for skeletons menuSkeleton = new List<SkeletonData>(); initialPlayers = new Dictionary<float, SkeletonData>(); //create a new list for initialPlayers foreach (SkeletonData s in e.SkeletonFrame.Skeletons) //for each skeleton the kinect has detected { if (s.TrackingState == SkeletonTrackingState.Tracked) // players found { menuSkeleton.Add(s); if (initialized) // after initialization { skeletons.Add(s.TrackingID, s); } else // before initialization initialPlayers.Add(s.Joints[JointID.ShoulderCenter].Position.X, s); //if we are not initialized then add this player to the inital player list. playersAlive++; } } if (playersAlive == TOTAL_PLAYERS_ALLOWED) // If there is one player { if (!inMiniGame) // Before the game starts gameStart = DateTime.Now; // Reset initialization timer if (!initialized) // Before initialization // NOTE TO SELF I TOOK OUT && inMenu { InitializePlayers(); if (DateTime.Now.Subtract(gameStart).TotalMilliseconds > INITIALIZATION_WAIT_TIME) { initialized = true; // initialize timers from fixed starting time if (inMiniGame) //if the game has started { gamePause = gameStart; //TODO ERIC: Initialize any Timers Here } } } } } /// <summary> /// this function initializes the players adding them to a list /// and making one of the players the menu controller, for LIM we will need to change the code so that the /// game only recognizes and supports one player at a time /// variable names will need to be change as well. /// </summary> private void InitializePlayers() { List<float> initialPos = new List<float>(); // used to track starting positions players = new Dictionary<int, Player>(); foreach (float pos in initialPlayers.Keys) { initialPos.Add(pos); //add position of each inital player to list } float first = initialPos[0]; // left player first, right second Player player = new Player(initialPlayers[first].TrackingID, true); player.PlayerNumber = PLAYER_ONE; player.Skeleton = initialPlayers[first]; player.Specifics = new PlayerSpecifics(player.PlayerNumber); player.Specifics.PauseTimer = gameStart; players.Add(initialPlayers[first].TrackingID, player); menuController = initialPlayers[first].TrackingID; //menu controller is player 1 } This is a one player game. Also when the game starts Initialize is set to false, and gets set to true when i go from the games menu into the gameplay. So can anyone see any issues with this code block that would cause the kinect to lose players as they enter/exit the FOV? and not re-track them? Thank you for any help.

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• Drivers for Atheros AR928X?

  - by Pato7

  I am new in Ubuntu and I had a big trouble with wifi. My ubuntu 12.10 doesn't detect my wifi card and I can't toggle the "activate wireless" option on the tasks bar (it is grey). I searched for drivers to make it work, but nothing worked for me. Can anyone give me a hand? Many thanks in advanced! lspci output 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07) 00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07) 00:1a.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03) 00:1a.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03) 00:1a.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03) 00:1a.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03) 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03) 00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03) 00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03) 00:1d.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03) 00:1d.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03) 00:1d.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93) 00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] (rev 03) 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03) 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV710 [Mobility Radeon HD 4500/5100 Series] 01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI RV710/730 HDMI Audio [Radeon HD 4000 series] 02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8057 PCI-E Gigabit Ethernet Controller (rev 10) 03:00.0 Network controller: Atheros Communications Inc. AR928X Wireless Network Adapter (PCI-Express) (rev 01) 0c:03.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 05) 0c:03.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22) 0c:03.2 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 12) lshw -c network output *-network descripción: Ethernet interface producto: 88E8057 PCI-E Gigabit Ethernet Controller fabricante: Marvell Technology Group Ltd. id físico: 0 información del bus: pci@0000:02:00.0 nombre lógico: eth0 versión: 10 serie: 00:24:be:83:b2:4f tamaño: 100Mbit/s capacidad: 1Gbit/s anchura: 64 bits reloj: 33MHz capacidades: pm msi pciexpress bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuración: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.30 duplex=full ip=192.168.1.123 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s recursos: irq:45 memoria:d3520000-d3523fff ioport:c000(size=256) memoria:d3500000-d351ffff *-network DESACTIVADO descripción: Interfaz inalámbrica producto: AR928X Wireless Network Adapter (PCI-Express) fabricante: Atheros Communications Inc. id físico: 0 información del bus: pci@0000:03:00.0 nombre lógico: wlan0 versión: 01 serie: 2c:81:58:e6:b6:03 anchura: 64 bits reloj: 33MHz capacidades: pm msi pciexpress msix bus_master cap_list ethernet physical wireless configuración: broadcast=yes driver=ath9k driverversion=3.5.0-18-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11bgn recursos: irq:17 memoria:d2100000-d210ffff rfkill list all output 0: phy0: Wireless LAN Soft blocked: yes Hard blocked: yes 1: sony-wifi: Wireless LAN Soft blocked: yes Hard blocked: no

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• Using HTML5 Today part 3&ndash; Using Polyfills

  - by Steve Albers

  Shims helps when adding semantic tags to older IE browsers, but there is a huge range of other new HTML5 features that having varying support on browsers.  Polyfills are JavaScript code and/or browser plug-ins that can provide older or less featured browsers with API support.  The best polyfills will detect the whether the current browser has native support, and only adds the functionality if necessary.  The Douglas Crockford JSON2.js library is an example of this approach: if the browser already supports the JSON object, nothing changes.  If JSON is not available, the library adds a JSON property in the global object. This approach provides some big benefits: It lets you add great new HTML5 features to your web sites sooner. It lets the developer focus on writing to the up-and-coming standard rather than proprietary APIs. Where most one-off legacy code fixes tends to break down over time, well done polyfills will stop executing over time (as customer browsers natively support the feature) meaning polyfill code may not need to be tested against new browsers since they will execute the native methods instead. Your should also remember that Polyfills represent an entirely separate code path (and sometimes plug-in) that requires testing for support.  Also Polyfills tend to run on older browsers, which often have slower JavaScript performance.  As a result you might find that performance on older browsers is not comparable. When looking for Polyfills you can start by checking the Modernizr GitHub wiki or the HTML5 Please site. For an example of a polyfill consider a page that writes a few geometric shapes on a <canvas> <script src="jquery-1.7.1.min.js"><script> <script> $(document).ready(function () { drawCanvas(); }); function drawCanvas() { var context = $("canvas")[0].getContext('2d'); //background context.fillStyle = "#8B0000"; context.fillRect(5, 5, 300, 100); // emptybox context.strokeStyle = "#B0C4DE"; context.lineWidth = 4; context.strokeRect(20, 15, 80, 80); // circle context.arc(160, 55, 40, 0, Math.PI * 2, false); context.fillStyle = "#4B0082"; context.fill(); </script>   The result is a simple static canvas with a box & a circle:   …to enable this functionality on a pre-canvas browser we can find a polyfill.  A check on html5please.com references  FlashCanvas.  Pull down the zip and extract the files (flashcanvas.js, flash10canvas.swf, etc) to a directory on your site.  Then based on the documentation you need to add a single line to your original HTML file: <!--[if lt IE 9]><script src="flashcanvas.js"></script><![endif]—> …and you have canvas functionality!  The IE conditional comments ensure that the library is only loaded in browsers where it is useful, improving page load & processing time. Like all Polyfills, you should test to verify the functionality matches your expectations across browsers you need to support.  For instance the Flash Canvas home page advertises 70% support of HTML5 Canvas spec tests.

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• Finalists for Community Manager of the Year Announced

  - by Mike Stiles

  For as long as brand social has been around, there’s still an amazing disparity from company to company on the role of Community Manager. At some brands, they are the lead social innovators. At others, the task has been relegated to interns who are at the company temporarily. Some have total autonomy and trust. Others must get chain-of-command permission each time they engage. So what does a premiere “worth their weight in gold” Community Manager look like? More than anyone else in the building, they have the most intimate knowledge of who the customer is. They live on the front lines and are the first to detect problems and opportunities. They are sincere, raving fans of the brand themselves and are trusted advocates for the others. They’re fun to be around. They aren’t salespeople. Give me one Community Manager who’s been at the job 6 months over 5 focus groups any day. Because not unlike in speed dating, they must immediately learn how to make a positive, lasting impression on fans so they’ll want to return and keep the relationship going. They’re informers and entertainers, with a true belief in the value of the brand’s proposition. Internally, they live at the mercy of the resources allocated toward social. Many, whose managers don’t understand the time involved in properly curating a community, are tasked with 2 or 3 too many of them. 63% of CM’s will spend over 30 hours a week on one community. They come to intuitively know the value of the relationships they’re building, even if they can’t always be shown in a bar graph to the C-suite. Many must communicate how the customer feels to executives that simply don’t seem to want to hear it. Some can get the answers fans want quickly, others are frustrated in their ability to respond within an impressive timeframe. In short, in a corporate world coping with sweeping technological changes, amidst business school doublespeak, pie charts, decks, strat sessions and data points, the role of the Community Manager is the most…human. They are the true emotional connection to the real life customer. Which is why we sought to find a way to recognize and honor who they are, what they do, and how well they have defined the position as social grows and integrates into the larger organization. Meet our 3 finalists for Community Manager of the Year. Jeff Esposito with VistaprintJeff manages and heads up content strategy for all social networks and blogs. He also crafts company-wide policies surrounding the social space. Vistaprint won the NEDMA Gold Award for Twitter Strategy in 2010 and 2011, and a Bronze in 2011 for Social Media Strategy. Prior to Vistaprint, Jeff was Media Relations Manager with the Long Island Ducks. He graduated from Seton Hall University with a BA in English and a minor in Classical Studies. Stacey Acevero with Vocus In addition to social management, Stacey blogs at Vocus on influential marketing and social media, and blogs at PRWeb on public relations and SEO. She’s been named one of the #Nifty50 Women in Tech on Twitter 2 years in a row, as well as included in the 15 up-and-coming PR pros to watch in 2012. Carly Severn with the San Francisco BalletCarly drives engagement, widens the fanbase and generates digital content for America’s oldest professional ballet company. Managed properties include Facebook, Twitter, Tumblr, Pinterest, Instagram, YouTube and G+. Prior to joining the SF Ballet, Carly was Marketing & Press Coordinator at The Fitzwilliam Museum at Cambridge, where she graduated with a degree in English. We invite you to join us at the first annual Oracle Social Media Summit November 14 and 15 at the Wynn in Las Vegas where our finalists will be featured. Over 300 top brand marketers, agency executives, and social leaders & innovators will be exploring how social is transforming business. Space is limited and the information valuable, so get more info and get registered as soon as possible at the event site.

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• HERMES Medical Solutions Helps Save Lives with MySQL

  - by Bertrand Matthelié

  Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Cambria","serif"; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin;} HERMES Medical Solutions was established in 1976 in Stockholm, Sweden, and is a leading innovator in medical imaging hardware/software products for health care facilities worldwide. HERMES delivers a plethora of different medical imaging solutions to optimize hospital workflow. Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Cambria","serif"; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin;} HERMES advanced algorithms make it possible to detect the smallest changes under therapies important and necessary to optimize different therapeutic methods and doses. Challenges Fighting illness & disease requires state-of-the-art imaging modalities and software in order to diagnose accurately, stage disease appropriately and select the best treatment available. Selecting and implementing a new database platform that would deliver the needed performance, reliability, security and flexibility required by the high-end medical solutions offered by HERMES. Solution Decision to migrate from in-house database to an embedded SQL database powering the HERMES products, delivered either as software, integrated hardware and software solutions, or via the cloud in a software-as-a-service configuration. Evaluation of several databases and selection of MySQL based on its high performance, ease of use and integration, and low Total Cost of Ownership. On average, between 4 and 12 Terabytes of data are stored in MySQL databases underpinning the HERMES solutions. The data generated by each medical study is indeed stored during 10 years or more after the treatment was performed. MySQL-based HERMES systems also allow doctors worldwide to conduct new drug research projects leveraging the large amount of medical data collected. Hospitals and other HERMES customers worldwide highly value the “zero administration” capabilities and reliability of MySQL, enabling them to perform medical analysis without any downtime. Relying on MySQL as their embedded database, the HERMES team has been able to increase their focus on further developing their clinical applications. HERMES Medical Solutions could leverage the Oracle Financing payment plan to spread its investment over time and make the MySQL choice even more valuable. “MySQL has proven to be an excellent database choice for us. We offer high-end medical solutions, and MySQL delivers the reliability, security and performance such solutions require.” Jan Bertling, CEO.

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• Data breakpoints to find points where data gets broken

  - by raccoon_tim

  When working with a large code base, finding reasons for bizarre bugs can often be like finding a needle in a hay stack. Finding out why an object gets corrupted without no apparent reason can be quite daunting, especially when it seems to happen randomly and totally out of context. Scenario Take the following scenario as an example. You have defined the a class that contains an array of characters that is 256 characters long. You now implement a method for filling this buffer with a string passed as an argument. At this point you mistakenly expect the buffer to be 256 characters long. At some point you notice that you require another character buffer and you add that after the previous one in the class definition. You now figure that you don’t need the 256 characters that the first member can hold and you shorten that to 128 to conserve space. At this point you should start thinking that you also have to modify the method defined above to safeguard against buffer overflow. It so happens, however, that in this not so perfect world this does not cross your mind. Buffer overflow is one of the most frequent sources for errors in a piece of software and often one of the most difficult ones to detect, especially when data is read from an outside source. Many mass copy functions provided by the C run-time provide versions that have boundary checking (defined with the _s suffix) but they can not guard against hard coded buffer lengths that at some point get changed. Finding the bug Getting back to the scenario, you’re now wondering why does the second string get modified with data that makes no sense at all. Luckily, Visual Studio provides you with a tool to help you with finding just these kinds of errors. It’s called data breakpoints. To add a data breakpoint, you first run your application in debug mode or attach to it in the usual way, and then go to Debug, select New Breakpoint and New Data Breakpoint. In the popup that opens, you can type in the memory address and the amount of bytes you wish to monitor. You can also use an expression here, but it’s often difficult to come up with an expression for data in an object allocated on the heap when not in the context of a certain stack frame. There are a couple of things to note about data breakpoints, however. First of all, Visual Studio supports a maximum of four data breakpoints at any given time. Another important thing to notice is that some C run-time functions modify memory in kernel space which does not trigger the data breakpoint. For instance, calling ReadFile on a buffer that is monitored by a data breakpoint will not trigger the breakpoint. The application will now break at the address you specified it to. Often you might immediately spot the issue but the very least this feature can do is point you in the right direction in search for the real reason why the memory gets inadvertently modified. Conclusions Data breakpoints are a great feature, especially when doing a lot of low level operations where multiple locations modify the same data. With the exception of some special cases, like kernel memory modification, you can use it whenever you need to check when memory at a certain location gets changed on purpose or inadvertently.

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• Why is this beat detection code failing to register some beats properly?

  - by Quincy

  I made this SoundAnalyzer class to detect beats in songs: class SoundAnalyzer { public SoundBuffer soundData; public Sound sound; public List<double> beatMarkers = new List<double>(); public SoundAnalyzer(string path) { soundData = new SoundBuffer(path); sound = new Sound(soundData); } // C = threshold, N = size of history buffer / 1024 B = bands public void PlaceBeatMarkers(float C, int N, int B) { List<double>[] instantEnergyList = new List<double>[B]; GetEnergyList(B, ref instantEnergyList); for (int i = 0; i < B; i++) { PlaceMarkers(instantEnergyList[i], N, C); } beatMarkers.Sort(); } private short[] getRange(int begin, int end, short[] array) { short[] result = new short[end - begin]; for (int i = 0; i < end - begin; i++) { result[i] = array[begin + i]; } return result; } // get a array of with a list of energy for each band private void GetEnergyList(int B, ref List<double>[] instantEnergyList) { for (int i = 0; i < B; i++) { instantEnergyList[i] = new List<double>(); } short[] samples = soundData.Samples; float timePerSample = 1 / (float)soundData.SampleRate; int sampleIndex = 0; int nextSamples = 1024; int samplesPerBand = nextSamples / B; // for the whole song while (sampleIndex + nextSamples < samples.Length) { complex[] FFT = FastFourier.Calculate(getRange(sampleIndex, nextSamples + sampleIndex, samples)); // foreach band for (int i = 0; i < B; i++) { double energy = 0; for (int j = 0; j < samplesPerBand; j++) energy += FFT[i * samplesPerBand + j].GetMagnitude(); energy /= samplesPerBand; instantEnergyList[i].Add(energy); } if (sampleIndex + nextSamples >= samples.Length) nextSamples = samples.Length - sampleIndex - 1; sampleIndex += nextSamples; samplesPerBand = nextSamples / B; } } // place the actual markers private void PlaceMarkers(List<double> instantEnergyList, int N, float C) { double timePerSample = 1 / (double)soundData.SampleRate; int index = N; int numInBuffer = index; double historyBuffer = 0; //Fill the history buffer with n * instant energy for (int i = 0; i < index; i++) { historyBuffer += instantEnergyList[i]; } // If instantEnergy / samples in buffer < instantEnergy for the next sample then add beatmarker. while (index + 1 < instantEnergyList.Count) { if(instantEnergyList[index + 1] > (historyBuffer / numInBuffer) * C) beatMarkers.Add((index + 1) * 1024 * timePerSample); historyBuffer -= instantEnergyList[index - numInBuffer]; historyBuffer += instantEnergyList[index + 1]; index++; } } } For some reason it's only detecting beats from 637 sec to around 641 sec, and I have no idea why. I know the beats are being inserted from multiple bands since I am finding duplicates, and it seems that it's assigning a beat to each instant energy value in between those values. It's modeled after this: http://www.flipcode.com/misc/BeatDetectionAlgorithms.pdf So why won't the beats register properly?

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• Procedual level generation for a platformer game (tilebased) using player physics

  - by Notbad

  I have been searching for information about how to build a 2d world generator (tilebased) for a platformer game I am developing. The levels should look like dungeons with a ceiling and a floor and they will have a high probability of being just made of horizontal rooms but sometimes they can have exits to a top/down room. Here is an example of what I would like to achieve. I'm refering only to the caves part. I know level design won't be that great when generated but I think it is possible to have something good enough for people to enjoy the procedural maps (Note: Supermetrod Spoiler!): http://www.snesmaps.com/maps/SuperMetroid/SuperMetroidMapNorfair.html Well, after spending some time thinking about this I have some ideas to create the maps that I would like to share with you: 1) I have read about celular automatas and I would like to use them to carve the rooms but instead of carving just a tile at once I would like to carve full columns of tiles. Of course this carving system will have some restrictions like how many tiles must be left for the roof and the ceiling, etc... This way I could get much cleaner rooms than using the ussual automata. 2) I want some branching into the rooms. It will have little probability to happen but I definitely want it. Thinking about carving I came to the conclusion that I could be using some sort of path creation algorithm that the carving system would follow to create a path in the rooms. This could be more noticiable if we make the carving system to carve columns with the height of a corridor or with the height of a wide room (this will be added to the system as a param). This way at some point I could spawn a new automa beside the main one to create braches. This new automata should play side by side with the first one to create dead ends, islands (both paths created by the automatas meet at some point or lead to the same room. It would be too long to explain here all the tests I have done, etc... just will try to summarize the problems to see if anyone could bring some light to solve them (I don't mind sharing my successes but I think they aren't too relevant): 1) Zone reachability: How can I make sure that the player will be able to reach all zones I created (mainly when branches happen or vertical rooms are created). When branches are created I have to make sure that there will be a way to get onto the new created branch. I mean a bifurcation that the player could follow. Player will follow the main path or jump to a platform to get onto the other way). On the other hand if an island is created by the meeting of both branches I need to make sure the player will be able to get onto the island too. 2) When a branch is created and corridors are generated for each branch how can I make then both merge or repel to create an island or just make them separated corridors. 3) When I create a branch and an island is created becasue both corridors merge at somepoint or they lead to the same room, is there any way to detect this and randomize where to create the needed platforms to get onto the created isle? This platforms could be created at the start of the island or at the end. I guess part of the problem could be solved using some sort of graph following the created paths but I'm a bit lost in this sea of precedural content creation :). On the other hand I don't expect a solution to the problem but some information to get me moving forward again. Thanks in advance.

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• Using Private Extension Galleries in Visual Studio 2012

  - by Jakob Ehn

  Note: The installer and the complete source code is available over at CodePlex at the following location: http://inmetavsgallery.codeplex.com   Extensions and addins are everywhere in the Visual Studio ALM ecosystem! Microsoft releases new cool features in the form of extensions and the list of 3rd party extensions that plug into Visual Studio just keeps growing. One of the nice things about the VSIX extensions is how they are deployed. Microsoft hosts a public Visual Studio Gallery where you can upload extensions and make them available to the rest of the community. Visual Studio checks for updates to the installed extensions when you start Visual Studio, and installing/updating the extensions is fast since it is only a matter of extracting the files within the VSIX package to the local extension folder. But for custom, enterprise-specific extensions, you don’t want to publish them online to the whole world, but you still want an easy way to distribute them to your developers and partners. This is where Private Extension Galleries come into play. In Visual Studio 2012, it is now possible to add custom extensions galleries that can point to any URL, as long as that URL returns the expected content of course (see below).Registering a new gallery in Visual Studio is easy, but there is very little documentation on how to actually host the gallery. Visual Studio galleries uses Atom Feed XML as the protocol for delivering new and updated versions of the extensions. This MSDN page describes how to create a static XML file that returns the information about your extensions. This approach works, but require manual updates of that file every time you want to deploy an update of the extension. Wouldn’t it be nice with a web service that takes care of this for you, that just lets you drop a new version of your VSIX file and have it automatically detect the new version and produce the correct Atom Feed XML? Well search no more, this is exactly what the Inmeta Visual Studio Gallery Service does for you :-) Here you can see that in addition to the standard Online galleries there is an Inmeta Gallery that contains two extensions (our WIX templates and our custom TFS Checkin Policies). These can be installed/updated i the same way as extensions from the public Visual Studio Gallery. Installing the Service Download the installler (Inmeta.VSGalleryService.Install.msi) for the service and run it. The installation is straight forward, just select web site, application pool and (optional) a virtual directory where you want to install the service.   Note: If you want to run it in the web site root, just leave the application name blank Press Next and finish the installer. Open web.config in a text editor and locate the the <applicationSettings> element Edit the following setting values: FeedTitle This is the name that is shown if you browse to the service using a browser. Not used by Visual Studio BaseURI When Visual Studio downloads the extension, it will be given this URI + the name of the extension that you selected. This value should be on the following format: http://SERVER/[VDIR]/gallery/extension/ VSIXAbsolutePath This is the path where you will deploy your extensions. This can be a local folder or a remote share. You just need to make sure that the application pool identity account has read permissions in this folder Save web.config to finish the installation Open a browser and enter the URL to the service. It should show an empty Feed page:   Adding the Private Gallery in Visual Studio 2012 Now you need to add the gallery in Visual Studio. This is very easy and is done as follows: Go to Tools –> Options and select Environment –> Extensions and Updates Press Add to add a new gallery Enter a descriptive name, and add the URL that points to the web site/virtual directory where you installed the service in the previous step   Press OK to save the settings. Deploying an Extension This one is easy: Just drop the file in the designated folder! :-)  If it is a new version of an existing extension, the developers will be notified in the same way as for extensions from the public Visual Studio gallery: I hope that you will find this sever useful, please contact me if you have questions or suggestions for improvements!

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• How does one get UI_USER_INTERFACE_IDIOM() to work with iPhone OS SDK < 3.2

  - by drootang

  Apple advises using the following code to detect whether running on an iPad or iPhone/iPod Touch: if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) { // The device is an iPad running iPhone 3.2 or later. // [for example, load appropriate iPad nib file] } else { // The device is an iPhone or iPod touch. // [for example, load appropriate iPhone nib file] } The problem is that UI_USER_INTERFACE_IDIOM() and UIUserInterfaceIdiomPad are NOT defined in the SDKs priory to 3.2. This seems to completely defeat the purpose of such a function. They can only be compiled and run on iPhone OS 3.2 (iPhone OS 3.2 can only be run on iPad). So if you can use UI_USER_INTERFACE_IDIOM(), the result will always be to indicate an iPad. If you include this code and target OS 3.1.3 (the most recent iPhone/iPod Touch OS) in order to test your iPhone-bound universal app code, you will get compiler errors since the symbols are not defined in 3.1.3 or earlier. If this is the recommended-by-Apple approach to runtime device-detection, what am I doing wrong? Has anyone succeeded using this approach to device-detection?

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• motion computation from video using pyglet in python

  - by kuaywai

  Hi, I am writing a simple motion detection program but i want it to be cross platform so im using python and the pyglet library since it provides a simple way to load videos in different formats (specially wmv and mpeg). So far i have the code given below which loads the movie and plays it in a window. Now i need to: 1) grab frame at time t and t-1 2) do a subtraction to see which pixels are active for motion detection. any ideas on how to grab frames and to skip over frames and is it possible to put the pixel values into a matrix in numpy or something directly from pyglet? or should look into using something other than pyglet? thanks kuaywai import pyglet import sys window = pyglet.window.Window(resizable=True) window.set_minimum_size(320,200) window.set_caption('Motion detect 1.0') video_intro = pyglet.resource.media('movie1.wmv') player = pyglet.media.Player() player.queue(video_intro) print 'calculating movie size...' if not player.source or not player.source.video_format: sys.exit myWidth = player.source.video_format.width myHeight = player.source.video_format.height if player.source.video_format.sample_aspect 1: myWidth *= player.source.video_format.sample_aspect elif player.source.video_format.sample_aspect < 1: myHeight /= player.source.video_format.sample_aspect print 'its size is %d,%d' % (myWidth,myHeight) player.play() @window.event def on_draw(): window.clear() (w,h) = window.get_size() player.get_texture().blit(0, h-myHeight, width=myWidth, height=myHeight) pyglet.app.run()

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• How can I get a Silverlight application to check for an update and ask user to upgrade?

  - by Edward Tanguay

  I have made an out-of-browser silverlight application which I want to automatically update every time there is a new .xap file uploaded to the server. When the user right-clicks the application and clicks on Updates, the default is set to "Check for updates, but let me choose whether to download and install them": This leads me to believe that it is possible to make my Silverlight application automatically detect if there is a new .xap file present on the server, and if there is, the Silverlight client will automatically ask the user if he would like to install it. This however is not the case. I upload a new .xap file and the Silverlight application does nothing. Even if I add this to my App.xaml.cs: -- private void Application_Startup(object sender, StartupEventArgs e) { this.RootVisual = new BaseApp(); if (Application.Current.IsRunningOutOfBrowser) { Application.Current.CheckAndDownloadUpdateAsync(); } } and update the .xap file, the Silverlight application does nothing. This information enabled me to check if there is an update and if so, tell the user to restart the application, but when he restarts the application, nothing happens: -- private void Application_Startup(object sender, StartupEventArgs e) { this.RootVisual = new BaseApp(); if (Application.Current.IsRunningOutOfBrowser) { Application.Current.CheckAndDownloadUpdateAsync(); Application.Current.CheckAndDownloadUpdateCompleted += new CheckAndDownloadUpdateCompletedEventHandler(Current_CheckAndDownloadUpdateCompleted); } } void Current_CheckAndDownloadUpdateCompleted(object sender, CheckAndDownloadUpdateCompletedEventArgs e) { if (e.UpdateAvailable) { MessageBox.Show("An application update has been downloaded. " + "Restart the application to run the new version."); } else if (e.Error != null && e.Error is PlatformNotSupportedException) { MessageBox.Show("An application update is available, " + "but it requires a new version of Silverlight. " + "Visit the application home page to upgrade."); } else { //no new version available } } How do I make my Silverlight application check, each time it starts, if there is a new .xap file, and if there is, pass control to the Silverlight client to ask the user if he wants to download it, as the above dialogue implies is possible?

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• new ActiveXObject('Word.Application') creates new winword.exe process when IE security does not allo

  - by Mark Ott

  We are using MS Word as a spell checker for a few fields on a private company web site, and when IE security settings are correct it works well. (Zone for the site set to Trusted, and trusted zone modified to allow control to run without prompting.) The script we are using creates a word object and closes it afterward. While the object exists, a winword.exe process runs, but it is destroyed when the word object is closed. If our site is not set in the trusted zone (Internet zone with default security level) the call that creates the word object fails as expected, but the winword.exe process is still created. I do not have any way to interact with this process in the script, so the process stays around until the user logs off (users have no way to manually destroy the process, and it wouldn't be a good solution even if they did.) The call that attempts to create the object is... try { oWordApplication = new ActiveXObject('Word.Application'); } catch(error) { // irrelevant code removed, described in comments.. // notify user spell check cannot be used // disable spell check option } So every time the page is loaded this code may be run again, creating yet another orphan winword.exe process. oWordApplication is, of course, undefined in the catch block. I would like to be able to detect the browser security settings beforehand, but I have done some searching on this and do not think that it is possible. Management here is happy with it as it is. As long as IE security is set correctly it works, and it works well for our purposes. (We may eventually look at other options for spell check functionality, but this was quick, inexpensive, and does everything we need it to do.) This last problem bugs me and I'd like to do something about it, but I'm out of ideas and I have other things that are more in need of my attention. Before I put it aside, I thought I'd ask for suggestions here...

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• Android ListView: getTag() returns null

  - by TianDong

  Hallo all, I have a ListView which contains a Button in each line. The following code is part of the getView() Method public View getView(final int position, View convertView, ViewGroup parent) { View row = convertView; TextView tv; Button saveA_button; EditText edittext; FITB_ViewWrapper wrapper; if (row == null) { LayoutInflater li = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE); if (ChooseMode_Act.modeInfo.equalsIgnoreCase("Training")) { row = li.inflate(R.layout.exercise_for_training_fitb,parent, false); }else { row = li.inflate(R.layout.exercise_for_exam_fitb,parent, false); } wrapper=new FITB_ViewWrapper(row); row.setTag(wrapper); if (ChooseMode_Act.modeInfo.equalsIgnoreCase("Exam")) { saveA_button=wrapper.getSaveAnswer_Button(); OnClickListener l=new OnClickListener() { @Override public void onClick(View v) { Integer mp=(Integer)v.getTag(); Log.i("mp","my Position is: "+mp); } }; saveA_button.setOnClickListener(l); } }else { wrapper=(FITB_ViewWrapper) row.getTag(); } For my App i need to known to which item the Button belongs to, so i try to detect it. The code Log.i("mp","my Position is: "+mp); puts out a message: mp myPosition is: null I can't understand, why do i get a "null" but not an Integer? How can i find out the Position of an Item in a ListView? Thanks a lot.

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• Selenium RC selenium-testrunner.js Access denied error on IEProxy - Help??

  - by melaos

  Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; .NET4.0C; .NET4.0E) Timestamp: Wed, 28 Apr 2010 02:07:17 UTC Message: Access is denied. Line: 177 Char: 9 Code: 0 URI: http://www.google.com/selenium-server/core/scripts/selenium-testrunner.js Hi guys, i'm just starting to learn up on selenium and while testing using mostly test cases and test suite creating using selenium IDE firefox, i'm having some problem getting it to work properly in internet explorer. this is the cmd line that i'm using: java -jar "selenium-server.jar" -htmlSuite *iexploreproxy "http://www.google.com/" tests/OR_Discount_UAT_Suite.htm results.html -userExtensions user-extensions.js i try using the *iexplore but kept getting session id expired error and try with the proxy version instead. i can now see the testrunner but keep getting the access denied error. i then try the same cmd line using firefox: java -jar "selenium-server.jar" -htmlSuite *firefox3 "http://www.google.com/" tests/OR_Discount_UAT_Suite.htm results.html -userExtensions user-extensions.js FYI, i've already unchecked the auto detect proxy setting in IE8. and i can get everything running perfectly. so im not sure what's the problem right now :( anybody can help? thanks!

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• managing images in an iphone/ipad universal app

  - by taber

  Hi, I'm just curious as to what methods people are using to dynamically use larger or smaller images in their universal iPhone/iPad apps. I created a large test image and I tried scaling down (using cocos2d) by 0.46875. After viewing that in the iPhone 4.0 simulator I found the results were pretty crappy... rough pixel edges, etc. Plus, loading huge image files for iPhone users when they don't need them is pretty lame. So I guess what I will probably have to do is save out two versions of every sprite... large (for the iPad side) and small (for iPhone/iPod Touch) then detect the user's device and spit out the proper sprite like so: NSString *deviceType = [UIDevice currentDevice].model; CCSprite *test; if([deviceType isEqualToString:@"iPad"]) { test = [CCSprite spriteWithFile:@"testBigHuge.png"]; } else { test = [CCSprite spriteWithFile:@"testRegularMcTiny.png"]; } [self addChild: test]; How are you guys doing this? I'd rather avoid sprinkling all of my code with if statements like this. I want to also avoid using .xib files since it's an OpenGL-based app. Thanks!

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• UI_USER_INTERFACE_IDIOM() does not work with iPhone OS SDK < 3.2

  - by drootang

  Apple advises using the following code to detect whether running on an iPad or iPhone/iPod Touch: if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) { // The device is an iPad running iPhone 3.2 or later. // [for example, load appropriate iPad nib file] } else { // The device is an iPhone or iPod touch. // [for example, load appropriate iPhone nib file] } The problem is that UI_USER_INTERFACE_IDIOM() and UIUserInterfaceIdiomPad are NOT defined in the SDKs priory to 3.2. This seems to completely defeat the purpose of such a function. They can only be compiled and run on iPhone OS 3.2 (iPhone OS 3.2 can only be run on iPad). So if you can use UI_USER_INTERFACE_IDIOM(), the result will always be to indicate an iPad. If you include this code and target OS 3.1.3 (the most recent iPhone/iPod Touch OS) in order to test your iPhone-bound universal app code, you will get compiler errors since the symbols are not defined in 3.1.3 or earlier. If this is the recommended-by-Apple approach to runtime device-detection, what am I doing wrong? Has anyone succeeded using this approach to device-detection?

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• android.intent.action.SCREEN_ON doesn't work as a receiver intent filter

  - by Jim Blackler

  I'm trying to get a BroadcastReceiver invoked when the screen is turned on. In my AndroidManifest.xml I have specified : <receiver android:name="IntentReceiver"> <intent-filter> <action android:name="android.intent.action.SCREEN_ON"></action> </intent-filter> </receiver> However it seems the receiver is never invoked (breakpoints don't fire, log statements ignored). I've swapped out SCREEN_ON for BOOT_COMPLETED for a test, and this does get invoked. This is in a 1.6 (SDK level 4) project. A Google Code Search revealed this, I downloaded the project and synced it, converted it to work with latest tools, but it too is not able to intercept that event. http://www.google.com/codesearch/p?hl=en#_8L9bayv7qE/trunk/phxandroid-intent-query/AndroidManifest.xml&q=android.intent.action.SCREEN_ON Is this perhaps no longer supported? Previously I have been able to intercept this event successfully with a call to Context.registerReceiver() like so registerReceiver(new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { // ... } }, new IntentFilter(Intent.ACTION_SCREEN_ON)); However this was performed by a long-living Service. Following sage advice from CommonsWare I have elected to try to remove the long-living Service and use different techniques. But I still need to detect the screen off and on events.

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• Forcing UIInterfaceOrientation changes on iPhone

  - by Andiih

  I'm strugging with getting an iPhone application which requires just about every push or pop in the Nav Controller Stack to change orientation. Basically the first view is portrait, the second landscape the third portrait again (Yes I know this is less than ideal, but that's the design and I've got to implement it). I've been through various advice on here.... http://stackoverflow.com/questions/995723/how-do-i-detect-a-rotation-on-the-iphone-without-the-device-autorotating http://stackoverflow.com/questions/1824682/force-portrait-orientation-on-pushing-new-view-to-uinavigationviewcontroller http://stackoverflow.com/questions/181780/is-there-a-documented-way-to-set-the-iphone-orientation But without total success. Setting to link against 3.1.2 my reading of the linked articles above seems to indicate that if my portrait view pushes a view with - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations return ((interfaceOrientation == UIInterfaceOrientationLandscapeRight) ); } Then then that view should appear rotated to landscape. What happens is it appears in its "broken" portrait form, then rotates correctly as the device is turned. If I pop the controller back to my portrait view (which has an appropriate shouldAutoRotate...) then that remains in broken landscape view until the device is returned to portrait orientation. I've also tried removing all the shouldautorotate messages, and instead forcing rotation by transforming the view. This kind of works, and I've figured out that by moving the status bar (which is actually hidden in my application) [UIApplication sharedApplication].statusBarOrientation = UIInterfaceOrientationLandscapeRight; the keyboard will appear with the correct orientation when desired. The problem with this approach is that the status bar transform is weird and ugly when you don't have a status bar - a shadow looms over the page with each change. So. What am I missing. 1) Am I wrong in thinking that in 3.1.2 (or possibly earlier) shouldAutorotateToInterfaceOrientation should provide the desired orientation simply by pushing controllers ? 2) Is there another way of getting keyboards to appear in the correct orientation. 3) Are the undocumented API calls the way to go (please no!)

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• Display Simple Web Page In My Application Using Blackberry BrowserField

  - by ankit

  Hello All, What I am trying to do is display a simple web page in my application (no javascript,cookies or any scripting and not trying to detect any events such as mouse click etc.). I am using the code below and right now all I get is empty screen .. I know that the application is accessing the internet (the data transfer arrow flashes in the top right corner) but not sure why its not rendering. The code I am using is : HttpConnectionFactory factory = new HttpConnectionFactory("www.google.ca",HttpConnectionFactory.TRANSPORT_WIFI | HttpConnectionFactory.TRANSPORT_WAP2 | HttpConnectionFactory.TRANSPORT_DIRECT_TCP); while(true) { try { HttpConnection connection = factory.getNextConnection(); try { BrowserContent bc = RenderingSession.getNewInstance().getBrowserContent(connection,null,0); Field f = bc.getDisplayableContent(); add(f); } catch(RenderingException e) { //Log the error or store it for displaying to //the end user if no transports succeed System.out.println("error with rendering page"); } } catch(NoMoreTransportsException e) { //There are no more transports to attempt //Dialog.alert( "Unable to perform request" ); //Note you should never //attempt network activity on the event thread System.out.println("no more transport"); break; } } Some points to note: Im using the http-connection-factory class from www.versatilemonkey.com only becuase they have impelemented the abstract httpConnection class. If someone can also point me on how to implement my own that would be great. I am using '0' for the flags for getBrowserContent function. I looked through the rimn documentation and could not find an explanation for them. Any help would be greatly appreciated. Thanks, ankit

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• IEnumerable<T> and reflection

  - by Aren B

  Background Working in .NET 2.0 Here, reflecting lists in general. I was originally using t.IsAssignableFrom(typeof(IEnumerable)) to detect if a Property I was traversing supported the IEnumerable Interface. (And thus I could cast the object to it safely) However this code was not evaluating to True when the object is a BindingList<T>. Next I tried to use t.IsSubclassOf(typeof(IEnumerable)) and didn't have any luck either. Code /// <summary> /// Reflects an enumerable (not a list, bad name should be fixed later maybe?) /// </summary> /// <param name="o">The Object the property resides on.</param> /// <param name="p">The Property We're reflecting on</param> /// <param name="rla">The Attribute tagged to this property</param> public void ReflectList(object o, PropertyInfo p, ReflectedListAttribute rla) { Type t = p.PropertyType; //if (t.IsAssignableFrom(typeof(IEnumerable))) if (t.IsSubclassOf(typeof(IEnumerable))) { IEnumerable e = p.GetValue(o, null) as IEnumerable; int count = 0; if (e != null) { foreach (object lo in e) { if (count >= rla.MaxRows) break; ReflectObject(lo, count); count++; } } } } The Intent I want to basically tag lists i want to reflect through with the ReflectedListAttribute and call this function on the properties that has it. (Already Working) Once inside this function, given the object the property resides on, and the PropertyInfo related, get the value of the property, cast it to an IEnumerable (assuming it's possible) and then iterate through each child and call ReflectObject(...) on the child with the count variable.

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• Entity Framework 4.0 Databinding with sorting not working

  - by Mike Gates

  I want to do something that I thought would be very simple. I want to bind a generated Entity Framework EntityCollection to a WPF DataGrid. I also want this grid to be sortable. I have tried all kinds of things to make this happen, including using a CollectionViewSource. However, nothing seems to work. Using a normal CollectionViewSource around the EntityCollection gives me: 'System.Windows.Data.BindingListCollectionView' view does not support sorting. Ok...strange. I would have thought this would work. Next on the CollectionViewSource, I try setting: CollectionViewType="ListCollectionView" Great, sorting now works. But wait, I can't add or remove entities using the grid now, presumably because ListCollectionView doesn't support this with an entity framework context. So, I guess I need to capture events coming out of the datagrid in order to add or remove entities manually from my context. Now I can't find an event to capture to detect an add...! Why is this so hard? This should be the standard "demo" case that Microsoft should have designed around. Any ideas?

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• URL detection with JavaScript

  - by josh

  Hi! I'm using the following script to force a specific page - when loaded for the first time - into a (third-party) iFrame. <script type="text/javascript"> if(window.top==window) { location.reload() } else { } </script> (For clarification: This 'embedding' is done automatically by the third-party system but only if the page is refreshed once - for styling and some other reasons I want it there from the beginning.) Right now, I'm wondering if this script could be enhanced in ways that it's able to detect the current URL of its 'parent' document to trigger a specific action? Let's say the URL of the third-party site is 'http://cgi.site.com/hp/...' and the URL of the iFrame 'http://co.siteeps.com/hp/...'. Is it possible to realize sth. like this with JS: <script type="text/javascript"> if(URL is 'http://cgi.site.com/hp/...') { location.reload() } if(URL is 'http://co.siteeps.com/hp/...') { location.do-not.reload() resp. location.do-nothing() } </script> TIA josh

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