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• C# : Direct3D in a control, AND fullscreen on a secondary monitor - what's the best way ?

  - by Led

  I'm working on a C# application that needs to use Direct3D in a control in a windows form, AND (at the same time) fullscreen on a secondary monitor. Basically, I want a Windows Forms application on one screen with a user-interface to control the graphics, and I'd like to show preview-graphics in a small control, and full-blown superduper megafancy graphics fullscreen on a secondary monitor. What's the best way to approach this? (For example, I know XNA can render in a Windows Forms control, but is it possible to then add a fullscreen window on another monitor as well?)

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• Problem displaying Vertex Buffer Object (OpenGL and Obj-C)

  - by seaworthy

  Hey, I am having a problem displaying or loading a buffer with an array of vertices. I know that array works fine because I am able to render it using a loop and a glVertex command. I can't figure out what's wrong. Your insight is highly appreciated. GLuint vboId; glGenBuffers( 1, &vboId ); glBindBuffer( GL_ARRAY_BUFFER, vboId); glBufferData( GL_ARRAY_BUFFER, count*sizeof( GLfloat ),array,GL_STATIC_DRAW_ARB ); glBindBuffer( GL_ARRAY_BUFFER, 0 ); printf("%d\n",count); glEnableClientState( GL_VERTEX_ARRAY ); glBindBuffer( GL_ARRAY_BUFFER, vboId ); glVertexPointer( 3, GL_FLOAT, 0, 0 ); glDisableClientState( GL_VERTEX_ARRAY ); printf("vboId: [%hd]",vboId); glDeleteBuffers(1, &vboId); Help?

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• Image rendering on browser or temporary images?

  - by Muralha

  I'm trying to make a statistics page where it will show several data and charts. The charts need to be pictures so that the user can save it/drag-and-drop to his/her personal reports. I'm using Gruff Graphs for Ruby to produce the charts but I don't know the best way to display the results safe and protected. Some of my ideas/tries are: save the chart to a file (jpg, png)? problem: data is available to anyone (don't have access to cron, to delete data from time to time) render in the browser (has to work on IE)? Use javascript (Raphaël—JavaScript Library) or Google API and output a PDF report (need plugin or gem, right)? use send_data? i've tried to output other way than inline, because I needs to show other data, is it possible? Thanks for any help.

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• Getting websites to detect our mobile browser

  - by Chromatix

  I've been asked to find out a sensible way to make the majority of popular websites detect our browser - which is functionally complete, but is running on rather constrained hardware - as a "mobile" browser. The idea is that the heaviest popular websites seem to have mobile versions, which render much faster and fit better on the screen. I've looked at the inverse question, which tells me that there isn't an obvious standard way of doing it - http://www.brainhandles.com/techno-thoughts/detecting-mobile-browsers is a case in point. This is borne out by looking at a variety of User-Agent strings from popular mobile and desktop browsers. So far the best idea we can come up with is to add "Mobile" to the string somewhere, since this is the main visible difference between Safari for iPad/iPhone and for Windows/Mac. Does anyone have a better idea?

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• Python KMeans clustering words

  - by sadawd

  Dear Everyone I am interested to perform kmeans clustering on a list of words with the distance measure being Leveshtein. 1) I know there are a lot of frameworks out there, including scipy and orange that has a kmeans implementation. However they all require some sort of vector as the data which doesn't really fit me. 2) I need a good clustering implementation. I looked at python-clustering and realize that it doesn't a) return the sum of all the distance to each centroid, and b) it doesn't have any sort of iteration limit or cut off which ensures the quality of the clustering. python-clustering and the clustering algorithm on daniweb doesn't really work for me. Can someone find me a good lib? Google hasn't been my friend

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• Modifying a model and texture mid-game code

  - by MicroPirate

  Just have a question for anyone out there who knows some sort of game engine pretty well. What I am trying to implement is some sort of script or code that will allow me to make a custom game character and textures mid-game. A few examples would be along the lines of changing facial expressions and body part positions in the game SecondLife. I don't really need a particular language, feel free to use your favorite, I'm just really looking for an example on how to go about this. Also I was wondering if there is anyway to combine textures for optimization; for example if i wanted to add a tattoo to a character midgame, is there any code that could combine his body texture and the tattoo texture into one texture to use (this way I can simply just render one texture per body.) Any tips would be appreciated, sorry if the question is a wee bit to vauge.

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• lwjgl 101: How can I write applets?

  - by Vuntic

  I have a working app in lwjgl. It doesn't do much yet; I've just started, but it does compile and run like it's supposed to. I want to make it into an applet. I've followed the guide here, and I have an applet that runs nicely and displays text and such in the applet area and can access the functions of lwjgl (like Sys.alert), but I can't figure out how to get opengl to actually render. I've tried extending an AWTGLCanvas and calling this.add(myAWTGLCanvas), where this is the Applet that I'm using, but... nothing. The initGL() and paintGL() methods never get called. I wonder if I'm supposed to be doing something with Display, but that's not for applets, right? Help? Also: This counts as a "beginner" question, right? Edit: Here's a simplified version of what I have.

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• Unable to set relative path for flash file in ASP.NET MVC using AC_FL_RunContent

  - by Mahesh

  Hi, I have a website using asp.net mvc in which I need to embed a flash file in view. I am unable to set the relative path for the flash file. Given below is the code I am using: AC_FL_RunContent( 'codebase', 'http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0', 'width', '487', 'height', '359', 'menu', 'false', 'movie', 'images/butterfly', 'quality', 'high', 'allowscriptaccess', 'sameDomain', 'pluginspage', 'http://www.macromedia.com/go/getflashplayer' ); where I copied butterfly.swf in a directory called images. images directory resides in the views folder. If I use code behind( default.aspx default.aspx.cs) in a different solution with the same folder strucuture, browser is able to load the flash file. Could you please throw some light on the MVC folder structure issue?? Thanks a lot. Mahesh

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• Line breaks in "NSString"s returned from PList don't work.

  - by Moshe

  I've seen this post: http://stackoverflow.com/questions/2035567/nsstring-newline-escape-in-plist but I'd like to know if there's a way to pragmatically render \n line breaks. I'm currently using: decisionText.text = [NSString stringWithFormat: (@"%@", [replies objectAtIndex:(arc4random() % [replies count])])]; Which randomly grabs a String from the replies array. The array was loaded from a plist like so: replies = [[NSMutableArray alloc] initWithContentsOfFile:[[NSBundle mainBundle]pathForResource:@"AdviceList" ofType:@"plist"]]; What am I missing? The answer can't be to manually enter line breaks. That's not programming! (Sounds like word processing to me.)

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• How to check if a variable is defined in a Master file in ASP.NET MVC

  - by Mortanis

  I've got a Site.Master file I've created to be my template for the majority of the site, with a navigation. This navigation is dynamically created, based on a recursive Entity (called Page) - Pages with a parentID of 0 are top level, and naturally each child carries it's parent's Id in that field. I've created a quick little HTML Helper that accepts the ID of an Page and generates the nav by doing a foreach on the children that have a parentId matching the passed Id. On the majority of the site, I want the Site.Master to use a parentId of 0, but if I'm on a strongly typed View displaying a Page, I naturally want to use the Id of the page. Is there a way to do such conditional logic in a Site.Master (and, does that violate MVC rules)? "If I'm on a strongly typed Page of /Page/{Id}, use the Id render nav, else use 0"

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• (C#) graphics.drawImage has a size limit? How to deal with it?

  - by DGH

  I am attempting to display a very large graphical representation of some data. I am using a bitmap for persistent storage of the image and e.Graphics.DrawImage(myBitmap, new Point(0,0)) in the onPaint of a PictureBox control on my form. I have noticed (and heard mentioned on other sites) that if my image has a height or width greater than 2^15, I get a Parameter not Valid exception, but I have not found any official documentation of this limit. Is this 2^15 image size limit a definite, official part of Graphics.DrawImage? Are there any simple workarounds to render my entire image onto the form? (Yes, the pictureBox is set to the same size as the image, or bigger. Side question though, should I just be using the onPaint of the form itself instead of a picture box?)

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• Update payment details using Authorize.net

  - by Aditya

  Hello everybody, When i update the existing subscription info using update_recurring method of autorize.net gateway then payment details(means 'credit card number', 'CVV number' and 'expiry date' ) are not being updated. My code snippet is as follows:- def create_card_subscription credit_card = ActiveMerchant::Billing::CreditCard.new( :first_name = params[:payment_details][:name], :last_name = params[:payment_details][:last_name], :number = params[:payment_details][:credit_card_number], :month = params[:expiry_date_month], :year = params[:expiry_date_year], :verification_value = params[:payment_details][:cvv_code] ) if credit_card.valid? gateway = ActiveMerchant::Billing::AuthorizeNetGateway.new(:login = '***', :password = '******') response = gateway.update_recurring( { "subscription.payment.credit_card.card_number" = "4111111111111111", :duration ={:start_date='2010-04-21', :occurrences=1}, :billing_address={:first_name='xyz', :last_name='xyz'}, :subscription_id="**" } ) if response.success? puts response.params.inspect puts "Successfully charged $#{sprintf("%.2f", amount / 100)} to the credit card #{credit_card.display_number}. The Account number is #{response.params['rbAccountId']}" else puts response.message end else #Credit Card information is invalid end render :action="card_payment" end How can it be possible? Thanks in advance, Gaurav Kumar

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• Which is a better option, OpenGL or a game engine for developing a game for the iphone or ipod touch

  - by balraj

  I am new to OpenGL ES, and I'm about to begin a 3D game for the iphone in which we are showing some car pursuit or racing. Is it possible just with the OpenGL ES or UIKit only, or do I have to use other tools for it? I am comfortable with UIKit but newer to OpenGL/OpenGL ES; which would be better to start this game? Or should I use a game engine? If so, then which game engine would give us the 3D feeling, quality of images and motion, and rendering of the views with the sound effects?

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• What Python based Dashboard options exist?

  - by stuartcw

  I want to create a Dashboard on each server to show it's health and the results of some daily processing. I plan to hook up shell scripts and Python programs to collect the data. Instead of writing a web-based interface, I thought it would be good to use a python based web dashboard that could render the results in various business user and manager friendly formats. What are my options to do this? I am primarily interested in Python RedHat Linux, but other platforms are interesting too. I'm also open to Perl and Ruby based solutions especially if the plugins can be language neutral.

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• Streaming audio - where to start?

  - by Adam Davis

  I need to develop an embedded audio streaming server. Requirements: Voice quality or better Intended for low power wifi transmission Broad support in existing software and devices (ie, windows media player, quicktime, vlc, iPhone, Android, etc). Royalty/patent free, or cheap to license Preferences: Low overhead TCP/IP based streaming protocol Voice grade codec (easy to implement in software, no DSP, 32bit CPU if needed) Would be nice if it supported HTML5 browsers, but is there any codec (such as raw) that is supported by the latest browsers that is lower overhead than MP3? Therefore: What are the relevant streaming protocols I should be looking at? What are the relevant codecs I should be looking at? What transport streams should I be looking at? What am I missing, or where else should I be looking for this type of need?

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• Need help making row of buttons consistent

  - by oliverghingold

  I'm making my first website, and I'm trying to make variable-sized buttons so they'll render correctly on low resolution (read: mobile) browsers. Currently I just have the usual rollover image solution (185 pixels wide by 37 tall if anybody cares), but when I preview the site in low resolution it looks, predictably enough, like complete crap (more specifically they don't have room so they arrange vertically instead of horizontally and take up a huge amount of screen real estate). Semi-related, is there a way to overlay text on a button without saving separate images, each with the correct text? Just using a single template for buttons and then deciding what text goes on it as it's needed? tl;dr: I'm trying to get a horizontal lineup of buttons for navigating my website, but I'm a noob and I can't do it right without your generous assistance.

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• What's the best self-tracking software for Linux?

  - by trench

  I'm looking for a way to track myself and receive quality data upon which I can write future scripts/programs. For example, I use Google Reader a lot. I'd like to track the hrefs that garner my clicks. Further, I'd like to drop all of the words of each href into a database where they can be stacked in a hierarchical manner. At the end of the week I want to know that "Ubuntu" garnered 448 clicks and "Cheetos" garnered 2. :) That's just one example... I'd like this tracking and data-collecting to extend beyond my browser. I know writing something to do this myself wouldn't be too awfully difficult but if something already exists I'd happily use it. Thanks in advance. Primary OS: Ubuntu 10.04

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• ASP.Net AJAX controls, adding via .ashx page

  - by Matt Dawdy

  Okay, this is a continuation of a previous question of mine, but it is distinct enough to be its own question. Based on user interaction, I'm calling a .ashx handler via a jquery ajax call, and that handler is building some html for me that includes some Telerik controls like a masked textbox (masked for a phone number like "(###) ###-####". I got around all the hurdles of using Render() to get the html output of a server control even when it doesn't have a "Page" object or a ScriptHandler object. However, when I show the control to a user, I see the mask in the text of the textbox, but the mask doesn't "work" in the sense that when a user starts typing, it is as if the mask is really just text. So, my question is, after putting the html code out for a masked textbox, how do I tell whatever javascript is supposed to mask the input to really start masking on that specific control? I really hope this made sense. Please tell me if you need any clarification.

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• How to integrate Facebook the new Graph Api with Authlogic in Ruby on Rails?

  - by amrnt

  I've began with a new project using Authlogic system for Authorization. And I'm now wondering how could I connect Facebook oAuth sessions with my Authlogic session! First of all I want to use and Authlogic-oAuth Gems/Plugins, I what I want to use are just http://github.com/intridea/oauth2 and the interesting http://github.com/nsanta/fbgraph and associate them all with Authlogic. I tried using Authlogic with authlogic-connect extension, but It didnt fill up my needs. And I think the three of the amazing gems above togother will make things done in quality and as I want. Thanks in advance.

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• Help need to with MySQL query to join data spanning multiple tables and use data as column names

  - by gurun8

  I need a little help putting together a SQL query that will give me the following resultsets: and The data model looks like this: The tricky part for me is that the columns to the right of the "Product" in the resultset aren't really columns in the database but rather key/value pairs spanned across the data model. Table data is as follows: My apologies in advance for the image heavy question and the image quality. This just seemed like the easiest way to convey the information. It'll probably take someone less time to write the query statement to achieve the results than it did for me to assemble this question. By the way, the "product_option" table image is truncated but it illustrated the general idea of the data structure. The MySQL server version is 5.1.45.

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• EasyXDM passing data issue

  - by Jeff Ryan

  I'm using rpc with XDM, and I can send simple data back and forth easily between child and parent window. But it seems to be limited to simple strings and numbers. The demos on the site only use numbers. When I try to send a json ecoded string, I get a cross domain error. When I use cors, I can make ajax requests fine, but I can't display the child page in the iframe, because the data is returned and not rendered. My question is, how can I render an iframe, and pass complex data back and forth. Or maybe I am doing something wrong?

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• Minimalistic PHP template engine with caching but not Smarty?

  - by Pekka

  There are loads of questions for "the right" PHP template engine, but none of them is focused on caching. Does anybody know a lightweight, high-quality, PHP 5 based template engine that does the following out of the box: Low-level templating functions (Replacements, loops, and filtering, maybe conditionals) Caching of the parsed results with the possibility to set an individual TTL per item, and of course to force a reload programmatically Extremely easy usage (like Smarty's) Modest in polluting the namespace (the ideal solution would be one class to interact with from the outside application) But not Smarty. I have nothing against, and often use, Smarty, but I am looking for something a bit simpler and leaner. I took a look at Fabien Potencier's Twig that looks very nice and compiles templates into PHP code, but it doesn't do any actual caching beyond that. I need and want a template engine, as I need to completely separate code and presentation in a way that a HTML designer can understand later on, so please no fundamental discussions about whether template engines in PHP make sense. Those discussions are important, but they already exist on SO.

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• Is it wrong to get feedback from Stack Overflow on a live system architecture?

  - by hal10001

  I am the technical director at a startup, and I will eventually be tasked with implementing a "real" system architecture when we hire more programmers. Right now our clients are small enough, and it is just me, so documented deployments, source control, unit tests and quality assurance servers are non-existent. Eventually I will need to devise a work-flow and architecture patterns for the majority of the work we will do (e-commerce). If I posted an architecture diagram, and asked for feedback, would that be a misuse of the Stack Overflow system? I don't want to get into that battle of "hey, don't ask us to do your job for you", but the reality is that any programmer who eventually moves into this realm will have to figure it out with feedback from other developers. HighScalability.com is what comes to mind when I think about this sorta thing in terms of the knowledge I need. So if this is not the right kind of forum for that, then any book recommendations or white papers you can recommend would be appreciated.

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• facing outsourced wages, can i still eat and survive as a computing science major ?

  - by wefwgeweg

  offshore outsourced programmers charge fraction of what costs a North American developer. should I still pursue my major as computing science ? Why would companies spend more on North American/local developers where they can get the same quality if not better job done offshore ? I am just concerned for the development labor market, the free market wants the lowest cost provider. not just programming but many high skilled labor such as engineering, scientists, artists and etc. perhaps i should become a lawyer ?

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• twitter's profile widget include in a separate javascript file

  - by raulricardo21

  Hi stackoverflowers, I'm just trying to put the custom twitter's profile widget on my page, but I like to put the code in a separate javascript's file. so, I don't know how to do that. I mean, I put this on head tag <script type="text/javascript" src="http://widgets.twimg.com/j/2/widget.js"></script> the create a div for the widget, an put the rest of the code in another javascript new TWTR.Widget(json_twitter_options).render().setUser('username').start(); But, how to "put" the result in that widget... I'm totally lost, thanks in advance.

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