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  • Is there a graphics/game engine that supports PC & Mac?

    - by Chris Masterton
    Is their a graphics that runs on both Mac & PC? I've seen Unity and thats a possibility, I'm wondering if there are any other choices. Ideally I want to port the same C++ game code to both PC & Mac platforms, but let the underlying game/graphics engine take advantage of the appropriate hardware. edit: I'm looking on the level of Torque, Gamebryo & Unreal. A commercial solution is perfectly acceptable. Thanks, Chris

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  • C# How to create objects without class definitions?

    - by JL
    Is it possible to create objects at designtime without having to have hard coded class definitions, then populate properties with primitives or even strongly typed data types? This might sound confusing, so I will attempt to give you a use case scenario. Use case: You have an XML config file that could hold configuration values for connecting to various systems in an SOA application. In C# the XML file is read, but for each system the configuration properties are different (e.g: SQL might have a connection string, while SharePoint might need a username + password + domain + url, while yet an smtp server would need username + password + port + url) So instead of creating static classes as follows public class SharePointConfiguration or public class SQLConfiguration, then have each class with custom properties (this is cumbersome) or using a 1990's method, an arrayList or some named collection Is there not a more preferred way to achieve this? Taking advantage of new language features, that can still offer design time intellisense, which would make the code easier to maintain and less prone to error. Thanks

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  • Problem with graphiz on Unix

    - by J3n
    When I'm on Unix, my graphs with graphphiz are less nice. The tail or the head of the edge is not always linked to the boundary of the port. You can see the result here : http://www.freeimagehosting.net/image.php?59d8eb4b30.jpg <xsl:value-of select="$source"/>:<xsl:value-of select="$prot"/> -&gt; <xsl:value-of select="$destination"/>:<xsl:value-of select="$prot"/>[color="black",label="<xsl:value-of select="$prot"/>",fontcolor="black",tailclip=true,headclip=true];

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  • How do you encrypt data between client and server running in Flash and Java?

    - by ArmlessJohn
    We have a multiclient system where the client is written in Flash and the server is written in Java. Currently, communication is done in Flash by usage of flash.net.Socket and the protocol is written in JSON. The server uses a custom port to receive connections and then proceed to talk with each client. As expected, data is sent and received on both fronts as raw bytes, which are then decoded as needed. We would like to encrypt the communication between clients and server. I have some basic understanding about public/private key encryption, but I do not know what is the best way to exchange keys or what libraries are available (on both languages) to do this. What would be the best strategy to attack this problem and where should I start looking for libraries/methods to implement this encryption?

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  • Chat Server with sockets in C

    - by Andrew
    I'm trying to write a chat server in C that allows communication between two clients using POSIX sockets. I'm not sure I have a good grasp on this concept or how I should set up the communication protocol between the clients and the server. I know I need one socket to bind() the server port to so I can accept incoming connections from clients, but in order to have two clients connected at the same time do I need to create a socket for each of these clients when I accept() or should I accept() a client and then fork() so I can have another client accept? I'm not worried about concurrent chatting yet, it's more of a ping-pong approach where the clients need to wait for a recv() after they send() before they can type a new message.

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  • Inconsistent values in network switch throughput values

    - by Marcus Hughes
    Quite simple, I have a network switch with SNMP, and need to calculate the throughput of the switch port, so simply I use ifOutOctets. We transfer a file which is 145MB and if we use the total from the start, subtracted from the value at the end then the value is : 158901842 I simply can't get the value to match, or be anything similar to what the real transfer is. I understand that there may be excess traffic etc but I just can't get it to be anywhere similar (the server being tested has no traffic when this is not running) We have tried for a long time and suspect there may be an issue with the recording on the HP switch, do you have any suggestions, or how should we be calculating it? Thanks a lot in advance We have a HP ProCurve 1810G on 2.2

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  • Routing WCF Traffic Based on URI Domain Requested

    - by Ian Patrick Hughes
    Is there a way to route traffic to a target WCF service file based on the URL domain requested? Basically, I have a single WCF RESTful services project with 3 service files offering different endpoints. It's hosted on a single IIS6 site looking for multiple host header values on port 80. I want to route traffic to different services files whether the requester is asking for www.site1.com, www.site2.com, or www.site3.com. Seems like the sort of thing I would use a global.asax or HTTP Handler for, but I am not sure since this is a regular WCF Service Application. Even though I am on IIS6 for this project, I don't mind using a URL re-writer and wildcard mapping, if I have to. I have admin rights on the balanced servers where this will reside, I just want to know if there is a common/best practice before I start hacking my way around this.

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  • [OpenCV] cvFilter2D works very very slow in Ubuntu 9.10 amd64?

    - by Hong
    Hi, has someone tried the cvFilter2D under 64bit linux? Recently when I was trying to port some code to the amd64 version of Ubuntu 9.10, I just found that the cvFilter2D works really slow. The version is Opencv 2.0. The code is as follows: CvMat *mat_src = cvCreateMat(128, 128, CV_32FC1); CvMat *mat_dest = cvCreateMat(128, 128, CV_32FC1); CvMat* mat_kernel = cvCreateMat( 25, 25, CV_32FC1); // initialization ... cvFilter2D( (CvMat*)mat_src, (CvMat*)mat_dest, (CvMat*)mat_kernel, cvPoint( (25-1)/2, (25-1)/2)); // I needs approximately 100ms to finish that... My CPU is Intel 2.4G However, the Opencv 1.1pre only cost me 3ms for the same code...

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  • Where can I find soft-multiply and divide algorithms?

    - by srking
    I'm working on a micro-controller without hardware multiply and divide. I need to cook up software algorithms for these basic operations that are a nice balance of compact size and efficiency. My C compiler port will employ these algos, not the the C developers themselves. My google-fu is so far turning up mostly noise on this topic. Can anyone point me to something informative? I can use add/sub and shift instructions. Table lookup based algos might also work for me, but I'm a bit worried about cramming so much into the compiler's back-end...um, so to speak. Thanks!

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  • http://localhost/ not working on Windows 7. What's the problem?

    - by AXheladini
    I have a big problem opening http://localhost/ on Windows 7 (beta). I installed this os and everything went great; when I installed Wamp I saw that localhost is not working at all. I just see this error: Failed to Connect Firefox can't establish a connection to the server at localhost. in Mozilla and Explorer. I removed Wamp and after some weeks (that means two weeks from today) I installed NetBeans on Windows 7. I created a test PHP script and when I debug it, I get the same error again. I tried to access it with ip 127.... but still the same. What is the problem? When i installed NetBeans I installed it in port 8080.

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  • Implementation code for GetDateFormat Win32 function

    - by morpheous
    I am porting some legacy code from windows to Linux (Ubuntu Karmic to be precise). I have come across a Win32 function GetDateFormat(). The statements I need to port over are called like this: GetDateFormat(LOCALE_USER_DEFAULT, 0, &datetime, "MMMM", 'January', 31); OR GetDateFormat(LOCALE_USER_DEFAULT, 0, &datetime, "MMMM", 'May', 30); Where datetime is a SYSTEMTIME struct. Does anyone know where I can get the code for the function - or failing that, tips on how to "roll my own" equivalent function?

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  • HTTP request stream not readable outside of request handler

    - by Jason Young
    I'm writing a fairly complicated multi-node proxy, and at one point I need to handle an HTTP request, but read from that request outside of the "http.Server" callback (I need to read from the request data and line it up with a different response at a different time). The problem is, the stream is no longer readable. Below is some simple code to reproduce the issue. Is this normal, or a bug? function startServer() { http.Server(function (req, res) { req.pause(); checkRequestReadable(req); setTimeout(function() { checkRequestReadable(req); }, 1000); setTimeout(function() { res.end(); }, 1100); }).listen(1337); console.log('Server running on port 1337'); } function checkRequestReadable(req) { //The request is not readable here! console.log('Request writable? ' + req.readable); } startServer();

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  • XAMPP - local host problems

    - by jennym
    I have picked up some possible answers to my problem here, but none have so far worked. I have installed XAMPP but get the dreaded HTTP 404 error on both IE and Firefox when asking for 'http://localhost/'. I work with Dreamweaver but cannot get the testing server (XAMPP) to work, although I can connect to the linux/apache remote server. Skype has been uninstalled. Therefore XAMPP is running on port 80 by itself. XAMPP says Apache and Mysql have 'started'. Is there someone that could please help me?

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  • Is it possible to use SWT on a Mac with Mac Java 1.6

    - by ?????
    The official Eclipse site seems to indicate this is not possible: https://bugs.eclipse.org/bugs/show_bug.cgi?id=216051 which says: Apple is not supporting the 64-bit carbon API. SWT is written using carbon so it must be 32-bit. Apple won't support 32-bit JDK 1.6. Therefore SWT won't run on JDK 1.6 (along with any other Java program that had natives that made carbon calls). Nothing we can do here other than port to cocoa (which has been started but is still in the early stages). Is this still true? (This bug report comment is from over a year ago.) Is there no way to write an SWT app that I can distribute and will run on any Mac unless the user installs an old/Sun VM?

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  • What is XcvPort (used in OpenPrinter function)

    - by RiskX
    I'm usin the OpenPrinter function and the first parameter the function gets called "pPrinterName" and that's it's MSDN description: [in] Pointer to a null-terminated string that specifies the name of the printer or print server, the printer object, the XcvMonitor, or the XcvPort. For a printer object use: PrinterName,Job xxxx. For an XcvMonitor, use: ServerName,XcvMonitor MonitorName. For an XcvPort, use: ServerName,XcvPort PortName. Obviously I'm interested in the bold part. What exactly is XcvPort? I know it seems like a question of lazy person but I really couldn't find info abou this concept. If I would like to open a printer on port ABC I should write: "\\MySrever,XcvPort ABC"? Thank you for your answers!

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  • Socket left in TIME_WAIT after file transfer via netcat

    - by com
    Using Copying by NetCat I am trying to copy files throught network by NetCat. From console it work pretty well. First I run listening netcat on the destination machine and after I run sending on source machine. The problem is it's doen't work from script from the source machine: ssh -f user@$desthost 'nc -l 1234 | tar xvf - /dev/null &' #listening on destination host tar cv /tmp/file | nc $desthost 1234 #sending to destination host I saw that after running port 1234 is still was open and status of the socket was TIME_WAIT. If you know what's the problem, please, help me out. And by the way, after copying how can I validate that the content is identical? Thanks! Addendum: I found one very strange thing, the same implementation with screen on destination work works, but not stable, sometimes it doesn't copy a file. ssh user@$desthost screen -dm -S test 'nc -l 1234 | tar xvf - ' #listening on destination host Maybe there is an issue with timeout?

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  • How can I load an MP3 or similar music file for display and analysis in wxWidgets?

    - by Jon Cage
    I'm developing a GUI in wxPython which allows a user to generate sequences of colours for some toys I'm building. Part of the program needs to load an MP3 (and potentially other formats further down the line) and display it to the user. That should be sufficient to get started but later I'd like to add features like identifying beats and some crude frequency analysis. Is there any simple way of loading / understanding an MP3's contents to display a plot of its amplitudes to the screen using wxWidgets? I later intend to port to C++/wxWidgets for speed and to avoid having to distribute wxPython.

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  • Weird compatibility problem with .Net 3.5 and 4.0 assemblies (NATUPnPLib)

    - by Juha
    I'm having trouble getting NATUPnP 1.0 Type Library to work with Framework 3.5 in Visual Studio 2010. If I use .Net 4.0, it works just fine, but with .Net 3.5, NATUPNPLib's namespace looks excactly like NETCONLib's. For example this Port Forwarding Management Application sample from this site: http://pietschsoft.com/post/2009/02/05/NET-Framework-Communicate-through-NAT-Router-via-UPnP.aspx ..is using .Net 3.5, but I can't get it to compile in Visual Studio 2010 unless I change it to .Net 4.0. I haven't tried, but I bet in Visual Studio 2008 there would be no problems.

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  • Customize the From address in Rails application

    - by palani
    Hi , I have mailer action in my application, the mailer is configured with gmail smtp. The following is my config details under environment.rb file require "smtp_tls" ActionMailer::Base.delivery_method = :smtp ActionMailer::Base.perform_deliveries = true ActionMailer::Base.raise_delivery_errors = true ActionMailer::Base.default_charset = "utf-8" ActionMailer::Base.default_content_type = "text/html" ActionMailer::Base.smtp_settings = { :address => "smtp.gmail.com", :port => 587, :domain => 'gmail.com', :user_name => "[email protected]", :password => "password", :authentication => :plain The think i want to implement is, when ever the application generating email the from address shows "[email protected]". Is possible to customize the from address. In different places i want to use different From address instead of "[email protected]" I tried with my mailer model: @from = "#{user.email}" In development server log it shows the customized id correctly. if go my email inbox it shows the from address as "[email protected]" Can any one please guide on this. thanks in advance.

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  • c# how to add smtp hotmail account to send mail

    - by leventkalayz
    I wrote some codes so as to send e mail but I can only send mail from gmail account to gmail account also, I want to use hotmail accounts how can i do it? thanks It is SmtpClient SmtpServer = new SmtpClient("smtp.gmail.com"); mail.From = new MailAddress("[email protected]"); mail.To.Add("[email protected]"); mail.Subject = "Test Mail - 1"; mail.IsBodyHtml = true; string htmlBody; htmlBody = "Write some HTML code here"; mail.Body = htmlBody; SmtpServer.Port = 587; SmtpServer.Credentials = new System.Net.NetworkCredential("[email protected]", "mypassword"); SmtpServer.EnableSsl = true; SmtpServer.Send(mail);

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  • Sharing a database connection with included classes in a Sinatra application

    - by imightbeinatree
    I'm converting a part of a rails application to its own sinatra application. It has some beefy work to do and rather than have a million helps in app.rb, I've separated some of it out into classes. Without access to rails I'm rewriting finder several methods and needing access to the database inside of my class. What's the best way to share a database connection between your application and a class? Or would you recommend pushing all database work into its own class and only having the connection established there? Here is what I have in in app.rb require 'lib/myclass' configure :production do MysqlDB = Sequel.connect('mysql://user:password@host:port/db_name') end I want to access it in lib/myclass.rb class Myclass def self.find_by_domain_and_stub(domain, stub) # want to do a query here end end I've tried several things but nothing that seems to work well enough to even include as an example.

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  • How to receive a datastream from a device on your computer, in C#

    - by WebDevHobo
    I plan to build a small audio-recorder app in C#. My laptop has a built in Microphone that's always active, so I want to use that as an early-stage test. I would simply start recording, save the file as a .wav or even use the LAME dll to make it into an MP3. The problem is, I don't know how to contact that microphone. Do I use a library that can detect a device, or do I just catch a stream of bytes from the port that the device is on? I don't have any experience with receiving data from connected devices. I suppose that I'll need to enter all the data into a byte array and then Serialize that into a WAV file, but I'm not sure. Can I get some pointers on this subject?

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  • Another floating point question

    - by jeffmax329
    I have read most of the posts on here regarding floating point, and I understand the basic underlying issue that using IEEE 754 (and just by the nature of storing numbers in binary) certain fractions cannot be represented. I am trying to figure out the following: If both Python and JavaScript use the IEEE 754 standard, why is it that executing the following in Python .1 + .1 Results in 0.20000000000000001 (which is to be expected) Where as in Javascript (in at least Chrome and Firefox) the answer is .2 However performing .1 + .2 In both languages results in 0.30000000000000004 In addition, executing var a = 0.3; in JavaScript and printing a results in 0.3 Where as doing a = 0.3 in Python results in 0.29999999999999999 I would like to understand the reason for this difference in behavior. In addition, many of the posts on OS link to a JavaScript port of Java's BigDecimal, but the link is dead. Does anyone have a copy?

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  • [Android] How do I load URL that requires login into variable?

    - by bebeTech
    I am trying to port my usage meter from a JavaScript Gadget (win) / Widget (OSX) to Android. Total newbie when comes to JAVA + Eclipse + Android 2.1 SDK. Essentially what I want to do is load a page, pass through a username and password and load the resulting page into a array that I can then run some regular expressions through. My code from JavaScript (I've replace the actual URL with a dummy one) is: xmlhttp.open("post","https://acme.com.au/your_account/index.php?function=login",false); xmlhttp.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT"); xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); xmlhttp.send("check_username=" + username + "&password=" + password); I need to know the Android equivalent to the above please. I've played around with WebView but that loads the page in a web browser which isn't what I want.

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  • How to ensure that you are building against STLport.

    - by Pradyot
    I am using Visual C++ 2005 to build a couple of libraries and an executable. I include the STLport location in the Additional Include Path of the libraries and include the library in the input to linker for executable. The library however seems to reffer to stl symbols (such as string) without the stl port namespace. This results in a linker error. these are the relevant lines from the command line on the 2 libraries and executable: /Od /I "..\Junctions\fo_fid_3rdParty\STLport-5.1.0\stlport" /Od /I "..\Junctions\Includes\fo_fid_3rdParty\STLport-5.1.0\stlport" /OUT:"..\ET_BUILD\vc8\Debug\bin\SFGWDealerwebFixAutorecD.exe" /INCREMENTAL:NO /NOLOGO ..\junctions\libs\fo_fid_3rdParty\STLport-5.1.0\lib\stlportstld_vc8.5.1.lib thanks

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