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• Illustration for code presentation

  - by Lasse V. Karlsen

  I got an odd request, and I fear it will be closed as off-topic. So be it, but it's worth a shot. I'm creating a presentation about dependency injection and inversion of control, and I thought I'd make the point of interchangeable parts that serve a common purpose, but has different implementations, by showing an image I've seen before. Basically the image is of a man or a woman, but the image is split up into four parts: Head Torso uhm... not sure the name of this part, stomach, etc. Legs Possibly a fifth with feet and for each part you can choose among a few variants, creating odd people in the process. ie. a man torso with a woman head. But, I can't find such an image now of course. Does anyone know of such an image and can provide me with an url?

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• problem with asf writer

  - by hatham

  Im trying to encode raw data(both video frame and audio sample) into .asf file, using asf writer filter in directshow. my filter graph structure: raw_send_filter - asf writer filter raw_send_filter implements CBaseFilter and CBaseOutputPin. It plays a role as source filter which get raw data, then deliver them to ASF writer filter. The process follows these steps: Get deliver buffer (return into "sample") , using the function CBaseOutputPin::GetDeliveryBuffer sample-GetPointer(&buffer); Set time stamp (with frame rate = 30 fps) deliver sample The problem is after encode some raw data, I can not deliver any more. I can encode .avi file with this way, using Avi mux filter. Can u tell me why I can not deliver samples after encoding some? Thanks.

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• Choosing between ExtJS and YUI based of application parameters.

  - by Kabeer

  Hello. I need help in taking call to choose between Ext JS and YUI libraries. Here are the key factors I have derived from my application requirements & development process: Complex, windows forms like controls Widgets, Layouts, Utilities Inter widget communication Easy to extend Easy to learn Intuitive & concise coding Strong exception handling Active support / community To update with upcoming technologies (HTML5, etc.) Skins & Themes to be easy to change Skins & Themes to support variety (a text box for different context to appear differently) Support & Utilities for standard protocols (XmlHttp, JSON) Good performance (responsive) Cost is not crucial, but I don't mind saving :)

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• Ruby: Is there a better way to iterate over multiple (big) files?

  - by zxcvbnm

  Here's what I'm doing (sorry for the variable names, I'm not using those in my code): File.open("out_file_1.txt", "w") do |out_1| File.open("out_file_2.txt", "w") do |out_2| File.open_and_process("in_file_1.txt", "r") do |in_1| File.open_and_process("in_file_2.txt", "r") do |in_2| while line_1 = in_1.gets do line_2 = in_2.gets #input files have the same number of lines #process data and output to files end end end end end The open_and_process method is just to open the file and close it once it's done. It's taken from the pickaxe book. Anyway, the main problem is that the code is nested too deeply. I can't load all the files' contents into memory, so I have to iterate line by line. Is there a better way to do this? Or at least prettify it?

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• Recording Audio through RTMP/Rails

  - by Lowgain

  I am in the process of building a rails/flex application which requires audio to be recorded and then stored in our amazon s3 account. I have found no alternative to using some form of RTMP server for recording audio through flash, but our hosting environment will not allow us to install anything like FMS, Red5, etc. Is there any existing Ruby/Rails RTMP solution that will allow audio recording? If not, is it possible for Rails to at least intercept the RTMP stream and then I can hope to reference red5 or something for parsing the data (long shot, I know)? The other alternative I can think of is hosting a red5 server on another host and communicating with our rails app once the saving/uploading is done, which is not preferred. Am I going to have any luck here?

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• Why am I unable to Debug my ASP.NET website in Visual Studio?

  - by willem

  I used to be able to attach to my w3wp process and Debug my web application, but this is not working anymore. I have no idea what changed to break this. My breakpoints simply have the "breakpoint will currently not be hit. The source code is different from the original version." What I have tried: Did a solution Clean. Did a solution Rebuild. Deleted the bin folder Restarted Visual Studio Restarted IIS Restarted my Computer Added a simple Response.Write to ensure that the latest DLL is being used. It is. Made sure that Debug ASP.NET is checked in my project properties. It is. Made sure that all my projects are compiled in my build configuration. They are. But none of these help. I attach to w3wp, but my breakpoints never get hit. Any ideas?

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• iPhone filesystem permissions POSIX-compliant?

  - by Seva Alekseyev

  Hi all, I'm trying to pass some files from one app to another. I communicate the path (via a custom URL). The target application cannot read the file, citing errno 13 (permission denied). I've checked the permissions on file - they're 0644 (O+R), the permissions on directories all the way up to the root are 755 (O+RX). From a POSIX perspective, the file should be readable to any process and any user. Yet it's not. Any ideas, please? I can think of some workarounds. I could use a Web service (upload, get a cookie, communicate the cookie to the other app, other app downloads). I could also pass the actual file data in the URL - unelegant, and probably subject to length limitations. Clipboard is not supported on iPhone OS 2 IIRC.

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• How to use Application.OnTime to call a macro at a set time everyday, without having to close workbook

  - by Shayne K

  I have written a macro that uses Application.OnTime that works if I manually execute the macro. I'm trying to automate this process so I don't have to write Application.OnTime in "This Workbook" or (Private Sub Workbook_Open() Most of you do this because you can have windows scheduler open the workbook at a certain time which starts the macros on open. I CANNOT USE SCHEDULER. Because I am not able to use windows scheduler I will keep the workbook open and the timer should refresh my data then Call "my Macro" at a certain time everyday. Where do I place this code, and how do I set an auto timer?

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• Running a Windows Forms app. from a service.

  - by RemotecUk

  Hi, I have a strange application in that for development and testing I need a windows forms application so that I can monitor what it is doing. For production, the application will be started from a service and no visible UI is needed. I dont really want to re-write the app. once it is completed into a console app so I would like to leave it as it but start it from the service. My question is will this application work fine from a service? At the moment it has UI elements and I have been able to successfully start the application from a service using the Process class (System.Diagnostics). Could anything go wrong with this approach?

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• How do I shim a Excel automation addin that implements IDTExtensibility2 but is not a com add in?

  - by Shane

  I found this article http://blogs.officezealot.com/whitechapel/archive/2005/05/21/4728.aspx but the example given is a straight automation add-in that does not implement IDTExtensibility2. My add in implements IDTExtensibility2 to get access to the excel object model but is not installed as a COM add in so RegisterFunction for example will called when one of the add in functions is first used not when the excel starts as in the case of the a COM add in. Will this method described in the link above work in my case also? I tried version 2.3.1 of the shim wizard which seems to have support for automations add-ins (it has a check box for automation add ins in the metadata import process). The generated shim runs (I can see breakpoints being hit in the debugger), but my functions no longer work (i get #NAME). The shims is installed as a COM add in and loads when excel starts so I suspect it's not doing what I want.

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• Multiple CheckOut or Multiple Commit .

  - by marco

  Hello sorry for my English ... I'm using Visual studio 2008 with C# and SharpSVN dll (for Subversion 1.6) I wish to commit to multiple different folders in my repository, but without having to checkout the entire repository. I tried using the method: SVNClient.Commit (ICollection coll, CommitArgs ca); Where eg coll [0] = "c:\svnCheckoutDir\dirLic001\sect\file_ext.ini" and coll [1] = "c:\svnCheckoutDir\dirLic121\sect\file_ext.ini" but I get the error message: "c:\svnCheckoutDir" is not a working copy. when I download the entire repository, I have no problems. but when I do a checkout of the folders you just want to modify the process does not work. Help me please . Marco Untiveros Novatronic Peru SAC.

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• Calling C function from DTrace scripts

  - by dmeister

  DTrace is impressive, powerful tracing system originally from Solaris, but it is ported to FreeBSD and Mac OSX. DTrace uses a high-level language called D not unlike AWK or C. Here is an example: io:::start /pid == $1/ { printf("file %s offset %d size %d block %llu\n", args[2]->fi_pathname, args[2]->fi_offset, args[0]->b_bcount, args[0]->b_blkno); } Using the command line sudo dtrace -q -s <name>.d <pid> all IOs originated from that process are logged. My question is if and how it is possible to call custom C functions from a DTrace script to do advanced operations with that tracing data during the tracing itself.

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• Why is QProcess converting the '=' in my arguments to spaces

  - by dagorym

  I've run into a weird error with a Qt program running on Windows. The program uses QProcess to spawn a child process wit two arguments. The program and arguments passed to the QProcess::start() method are of the form: "batchfile.bat" "--option1=some_value" "--option2=some_other_value\with_a\path" For some reason by the time those options get to the batchfile for processing the equals signs have been converted to spaces and it now looks like: "batchfile.bat" "--option1 some_value" "--option2 some_other_value\with_a\path" because of this, the processing fails. Any ideas what could be causing the equal signs to be replaced by spaces? I'm using the mingw build of the QT 4.6.3 framework found on the Qt download page.

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• Typescript + requirejs: How to handle circular dependencies?

  - by Aymeric Gaurat-Apelli

  I am in the process of porting my JS+requirejs code to typescript+requirejs. One scenario I haven't found how to handle is circular dependencies. Require.js returns undefined on modules that are also dependent on the current and to solve this problem you can do: MyClass.js define(["Modules/dataModel"], function(dataModel){ return function(){ dataModel = require("Modules/dataModel"); ... } }); Now in typescript, I have: MyClass.ts import dataModel = require("Modules/dataModel"); class MyClass { dataModel: any; constructor(){ this.dataModel = require("Modules/dataModel"); // <- this kind of works but I lose typechecking ... } } How to call require a second time and yet keep the type checking benefits of typescript? dataModel is a module { ... }

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• Browser for cross-site-script testing (for testing Mozilla Add-On)

  - by Anthony

  I am working on a Firefox extension that will involve ajax calls to domains that would normally fail due to the same-origin policy set by Firefox (and most modern browsers). I was wondering if there is a way to either turn off the same-origin restriction (in about:config, perhaps) or if there was a standard lite-browser that developers turn to for this. I really would like to avoid using any blackhat tools, if possible. Not because I'm against them, I just don't want to add another learning curve to the process. I can use curl in PHP to confirm that the requests work, but I want to get started on writing the js that the addon will actually use, so I need a client that will execute js. I also tried spidermonkey, but since I'm doing the ajax with jquery, it threw a fit at all of the browser-based default variables. So, short version: is there a reliable browser/client for cross site scripting that isn't primarily a hacker app? Or can I just turn off same-domain policy in Firefox?

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• Star-schema: Separate dimensions for clients and non-clients or shared dimension for attendants?

  - by celopes

  I'm new to modeling star schemas, fresh from reading the Data Warehouse Toolkit. I have a business process that has clients and non-clients calling into conference calls with some of our employees. My fact table, call it "Audience", will contain a measure of how long an attending person was connected to the call, and the cost per minute of this person's connection to the call. The grain is "individual connection to the conference call". Should I use my conformed Client dimension and create a non-client dimension (for the callers that are not yet clients) this way (omitting dimensions that are not part of this questions): Or would it be OK/better to have a non-conformed Attending dimension related to the conformed Client dimension in this manner: Or is there a better/standard mechanism to model business processes like this one?

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• When is a C++ terminate handler the Right Thing(TM)?

  - by Joseph Garvin

  The C++ standard provides the std::set_terminate function which lets you specify what function std::terminate should actually call. std::terminate should only get called in dire circumstances, and sure enough the situations the standard describes for when it's called are dire (e.g. an uncaught exception). When std::terminate does get called the situation seems analagous to being out of memory -- there's not really much you can sensically do. I've read that it can be used to make sure resources are freed -- but for the majority of resources this should be handled automatically by the OS when the process exits (e.g. file handles). Theoretically I can see a case for if say, you needed to send a server a specific message when exiting due to a crash. But the majority of the time the OS handling should be sufficient. When is using a terminate handler the Right Thing(TM)? Update: People interested in what can be done with custom terminate handlers might find this non-portable trick useful.

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• Managing string resources in a Java application - singleton?

  - by Joe Attardi

  I seek a solution to the age-old problem of managing string resources. My current implementation seems to work well, but it depends on using singletons, and I know how often singletons can be maligned. The resource manager class has a singleton instance that handles lookups in the ResourceBundle, and you use it like so: MessageResources mr = MessageResources.getMessageResources(); // returns singleton instance ... JLabel helloLabel = new JLabel(mr.getString("label.hello")); Is this an appropriate use of a singleton? Is there some better, more universally used approach that I'm not aware of? I understand that this is probably a bit subjective, but any feedback I can get would be appreciated. I'd rather find out early on that I'm doing it wrong than later on in the process. Thanks!

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• Error processing response in .net web service with WSE3 mutualCertificate10Security Assertion

  - by Maeloc

  I am securing a .net web service (framework 2.0) with WSE3 mutualCertificate10Security Assertion. When request are valid all is fine and the response is wellformed, but when the request is invalid (cause a invalid signature, failed check, or soapexception thrown), the web server isn't able to process the response to send to the client. The error in application event log is: An error occured processing an outgoing fault response. Details of the error causing the processing failure: System.InvalidOperationException: Send security filter on the server could not retrieve the operation protection requirements from the operation state. en Microsoft.Web.Services3.Security.SecureConversationServiceSendSecurityFilter.SecureMessage(SoapEnvelope envelope, Security security) en Microsoft.Web.Services3.Security.SendSecurityFilter.ProcessMessage(SoapEnvelope envelope) en Microsoft.Web.Services3.Pipeline.ProcessOutputMessage(SoapEnvelope envelope) en Microsoft.Web.Services3.WseProtocol.GetFilteredResponseEnvelope(SoapEnvelope outputEnvelope) All certificate permissions are OK (when request is OK the web service is able to sign the response). Error occurs only if a soapFault must be returned in the response. Any ideas?

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• Assigning values to variable WHILE loop

  - by Milaan

  Hi! I have a WHILE loop that loops through a table as long as $i is less than 10. I want this loop to assign the INNERHTML of each cell to a variable. So that I can use it later on to process the information (the loop is because you can choose if it has to take first 3 or first 10 cells). But how do I assign every innerHTML to a different variable? I'm sure there has to be an easy way. But google couldn't get me a good answer. Thanks in advance! Milaan

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• Cloud Agnostic Architecture?

  - by Dave

  Hi, I'm doing some architecture work on a new solution which will initially run in Windows Azure. However I'd like the solution (or at least the architecture/design) to be Cloud Agnostic (to whatever extent is realistic). Has anyone done any work on this front or seen any good white papers/blog posts? Our highlevel architecture will consist of a payload being sent to a web service (WCF for instance), this will be dumped on a queue (for arguments sake) and a worker process will grab messages off this queue and proccess them. There will be a database of customer information which we'd ideally like to keep out of the cloud however there are obvious performance considerations. Keen to hear other's thoughts. Cheers Dave

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• PDF permissions management with ASP.NET - Timeout Issue

  - by Ryan Smith

  I have a website that has several PDF files. I need to have quite a few of them locked down with the standard ASP.NET authentication (in a folder with web.config that denies anonymous users). I set PDF files to get handled by the ASP.NET worker process and added: <add type="System.Web.StaticFileHandler" path="*.pdf" verb="*" /> to my web.config, but for some reason they hang when downloading. I've seen this issue before on an old server, and for the live of me I can't remember what I did to solve it. Does anyone have any idea? Thanks.

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• How to always run a service in the background

  - by Thomas H

  Hi I am in the process of creating an app that is similar to the build-in SMS app. What I need: - a service that is always running in the background - every 5 min. the service checks the current location of the device and calls a web service - if certain criteria are meet, the service should generate a notification (just like the SMS app) - when the notification is clicked, the user is taken to the app (just like the SMS app) - when the app is installed the service should be started - when the device is rebooted, the service should be started What I have tried: - running a regular service which worked just fine until android kills the service - using the AlarmManager the make the 5 min. interval call to a service. But I was not able to make this work. Any help would be greatly appreciated... -Thomas

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• Installing PHP APC in Fedora - Unable to initialize module ?

  - by sri

  I have been trying to install APC on my Fedora Apache Server for showing progress bar while uploading files. But I am getting the following PHP Warning while starting XAMPP. Starting XAMPP for Linux 1.7.1... PHP Warning: PHP Startup: apc: Unable to initialize module Module compiled with module API=20090626, debug=0, thread-safety=0 PHP compiled with module API=20060613, debug=0, thread-safety=0 These options need to matchin Unknown on line 0 XAMPP: Starting Apache with SSL (and PHP5)... XAMPP: Starting MySQL... XAMPP: Another FTP daemon is already running. XAMPP for Linux started. My Server Details : OS : Fedora-12 XAMPP version : 1.7.1 PHP Version : 5.2.9 APC Version : 3.1.9 I have tried the process as is mentioned in here : 1)http://2bits.com/articles/installing-php-apc-gnulinux-centos-5.html 2)http://stevejenkins.com/blog/2011/08/how-to-install-apc-alternative-php-cache-on-centos-5-6/

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• Modifications in default document (ASP.NET+IIS7) won't take effect

  - by Wilson

  We have a website developed by ASP.NET+IIS7 and its default document is default.aspx. It works fine. But when we tried to switch the default to index.html, weird things happened. We have modified web.config as follows: <defaultDocument> <files> <clear /> <add value="index.html" /> </files> </defaultDocument> and we have clear everything under C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files``, and restart the worker process. We even changed the name of Default.aspx to dddd.aspx. But everything stays the same when accessing with http://localhost/<MyAppName>/! And when we tried to access with http://localhost/<MyAppName>/index.html, it works fine. Any suggestions would be highly appreciated.

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