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• How to jailbreak iPhone 3.1.2

  - by Md. Faisal Rahman

  Hi iPhone Developers, I am developing iPhone application for appStore since last yr for a SoftwareCompany. Now I have a own firm and I want to develop apps for appstore. In our country (bangladesh), iPhone is locked. I bought a iPhone from USA, but I cant use it as it is locked. Now how can I unlocked it? is jailbreaking is necessary? If jailbreaking is necessary, then please tell me(or links/pdf file etc) some trustable/ unthrened process that "How I can jailbreak my iPhone 3GS 3.1.2". please reply ASAP. Thanks

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• Windows Mobile Silverlight?

  - by eidylon

  Is it possible to develop Silverlight apps to run on WinMo devices? I see all around searching on the web - in articles from 2008 and 2009 - that they were adding Silverlight support in WinMo 6.1, for example: Internet Explorer Mobile The new version of Internet Explorer Mobile adds the ability to easily view full-screen Web pages and multimedia on the Web with a smartphone. Microsoft's press release states the new version takes advantage of "Internet Explorer 6 technologies" and supports industry standards such as H.264, Adobe Flash and Microsoft Silverlight. The update will be available to mobile phone partners in the third quarter of 2008, with the first Windows Mobile phones using the new version expected to be available by the end of 2008. But I have found an SL app supposedly geared for mobile devices (as much as I hate weatherbug), but when i try going there in PIE on my WinMo 6.1 device, it shows me the little "get silverlight" image button, but clicking it doesn't do anything. So, what is the story? Is SL/WinMo development possible, or ?

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• POJO's versus Cursors in Android

  - by Kilnr

  I usually tend to define the model layer of my apps using POJO's, such as Article, Comment, etc. I was about to implement an AlphabetIndexer in the adapter of one of my ListViews. Right now this adapter accepts a Collection of Articles, which I normally get from my wrapper around an SQLiteDatabase. The signature of the AlphabetIndexer constructer is as follows: public AlphabetIndexer (Cursor cursor, int sortedColumnIndex, CharSequence alphabet) Since this doesn't accept a Collection or something similar, just a Cursor, it got me wondering: maybe I shouldn't be creating objects for my model, and just use the Cursors returned from the database? So the question is, I guess: what should I do, represent data with Collections of POJO's, or just work with Cursors throughout my app? Any input?

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• Deploying Django at Dreamhost

  - by Imran

  I'm trying to get the Poll tutorial working at my Dreamhost account (I don't have any prior experience of deploying Django). I downloaded the script I found here (http://gabrielfalcao.com/2008/12/02/hosting-and-deploying-django-apps-on-dreamhost/) at my home directory and executed it. Now I have Python 2.5 and Django in ~/.myroot/ and my Django projects directory is ~/projects/ Here's the content of ~/projects/ directory (I copied the polls/ and and templates/polls/ directories myself). projects/ |-- admin_media -> /home/imran2140/.myroot/usr/lib/python2.5/site-packages/django/contrib/admin/media |-- dispatch.fcgi |-- polls | |-- __init__.py | |-- __init__.pyc | |-- admin.py | |-- admin.pyc | |-- models.py | |-- models.pyc | |-- polls.db | |-- urls.py | |-- urls.pyc | |-- views.py | `-- views.pyc |-- script_templates | |-- dispatch.template | `-- htaccess.template `-- templates `-- polls |-- detail.html |-- index.html `-- results.html 5 directories, 17 files Now what should I do to get the Polls app working? Update I finally got a "Hello World" Django app working with Passanger WSGI. It worked fine with both Server's default Python 2.3.5 and my installed Python 2.5.2. Passanger WSGI - Django at Dreamhost Wiki

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• Custom types in OpenCL kernel

  - by Studer

  Is it possible to use custom types in OpenCL kernel like gmp types (mpz_t, mpq_t, …) ? To have something like that (this kernel doesn't build just because of #include <gmp.h>) : #include <gmp.h> __kernel square( __global mpz_t* input, __global mpz_t number, __global int* output, const unsigned int count) { int i = get_global_id(0); if(i < count) output[i] = mpz_divisible_p(number,input[i]); } Or maybe does OpenCL already have types that can handle large numbers ?

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• PHP CMS with independent framework.

  - by Simon

  We currently use MySource Matrix CMS for large projects, Wordpress CMS for small projects and Zend Framework for bespoke applications... I'm not trying to confuse and compare a CMS to a framework, that has been done before :-) I want to identify a few CMSs for review that have foundations in strong (preferably independent) PHP frameworks. The only one I have looked at is SilverStripe CMS and Sapphire Framework. We have many clients that have a CMS for internet and/ or extranet and then various other bespoke applications that are then integrated via various means to look like they're in the CMS. I believe it will be more productive and beneficial to have a common framework between these branches so they can be natively merged. Hope this makes sense. PS. I have used custom assets in MySource Matrix and specific modules in other CMS but you feel you are working for the CMS not the application you are building.

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• Batch file script to remove special characters from filenames (Windows)

  - by njreed.myopenid.com

  I have a large set of files, some of which contain special characters in the filename (e.g. ä,ö,%, and others). I'd like a script file to iterate over these files and rename them removing the special characters. I don't really mind what it does, but it could replace them with underscores for example e.g. Störung%20.doc would be renamed to St_rung_20.doc In order of preference: A DOS batch file A Windows script file to run with cscript (vbs) A third party piece of software that can be run from the command-line (i.e. no user interaction required) Another language script file, for which I'd have to install an additional script engine Background: I'm trying to encrypt these file with GnuPG on Windows but it doesn't seem to handle special characters in filenames with the --encrypt-files option.

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• How to speed up calculation of length of longest common substring?

  - by eSKay

  I have two very large strings and I am trying to find out their Longest Common Substring. One way is using suffix trees (supposed to have a very good complexity, though a complex implementation), and the another is the dynamic programming method (both are mentioned on the Wikipedia page linked above). Using dynamic programming The problem is that the dynamic programming method has a huge running time (complexity is O(n*m), where n and m are lengths of the two strings). What I want to know (before jumping to implement suffix trees): Is it possible to speed up the algorithm if I only want to know the length of the common substring (and not the common substring itself)?

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• Symfony include_component() with components from a plugin

  - by Chris T

  All I'd like to do is use include_component to call a component from a plugin that I'm developing <?php #/plugins/fooPlugin/modules/barModule/actions/components.class.php class barModuleComponents extends sfComponents{ /** * Constructor */ function __construct(){ } function executeHello(){ } } ?> and <!-- /plugins/fooPlugin/modules/barModule/templates/_hello.php --> <p>HELLO WORLD!</p> But it won't load if I do this in #/apps/frontend/modules/homepage/templates/indexSuccess.php <?php include_component("barModule", "hello"); ?> XDebug gives me: ( ! ) Fatal error: Call to a member function add() on a non-object in C:\Program Files\WaterProof\PHPEdit\3.6.2\Extensions\Symfony\distribution\1.4\lib\helper\PartialHelper.php on line 360

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• Sparse matrices / arrays in Java

  - by DanM

  I'm working on a project, written in Java, which requires that I build a very large 2-D sparse array. Very sparse, if that makes a difference. Anyway: the most crucial aspect for this application is efficency in terms of time (assume loads of memory, though not nearly so unlimited as to allow me to use a standard 2-D array -- the key range is in the billions in both dimensions). Out of the kajillion cells in the array, there will be several hundred thousand cells which contain an object. I need to be able to modify cell contents VERY quickly. Anyway: Does anyone know a particularly good library for this purpose? It would have to be Berkeley, LGPL or similar license (no GPL, as the product can't be entirely open-sourced). Or if there's just a very simple way to make a homebrew sparse array object, that'd be fine too. I'm considering MTJ, but haven't heard any opinions on its quality. Thanks!! -Dan

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• Silverlight 4.0 question - synchronous calls to asmx web service

  - by Anvar

  Hi, I have Silverlight problem. I have to deal with fairly large legacy application that has some web services exposed (regular asmx, not wcf). What I need to do is to build Silverlight app that consumes those web services. Due to business logic I need to have the same web method to be called from Silverlight app synchronously. I was able to build web services consumption but only asynchronously because that would be default Silverlight behavior. Is there a way to make asynchronous calls synchronous in Silverlight? I looked here and googled around but came across only wcf examples. I would appreciate if somebody would get me a code example for regular asmx web service. I use Silverlight 4.0. Thanks!

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• Use javac fork attribute with IBM JDK

  - by avjaz

  Hi - I have a large ant build that I'm working on, that is currently running out of memory. One ways I've read that can help mitigate this problem is to use javac fork="true" to run javac in a separate jvm. My problem is that I need to compile the project with the IBM JDK (this is not the JDK referenced by JAVA_HOME, and I would prefer it not to be). I tried setting the executable attribute of Ant's javac, to the path to IBM's javac but no joy (the project still won't compile). Ant's docs for the executable attribute state: Complete path to the javac executable to use in case of fork="yes". Defaults to the compiler of the Java version that is currently running Ant. Ignored if fork="no". Since Ant 1.6 this attribute can also be used to specify the path to the executable when using jikes, jvc, gcj or sj. Does anyone have any ideas? Thanks -

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• Creating an Excel 2007 bubble chart with date values in axis

  - by Shadowfoot

  I'm trying to create a graph showing the duration of issue resolution. I believe a bubble chart in excel will show what I want but I can't manage to get it working correctly. For each date I have a number of days (duration) and a number of issues (magnitude). Most dates have a duration of 1 with a large magnitude, and I want to avoid the outliers dominating the chart. e.g. 1-Feb, 1, 15 1-Feb, 2, 10 1-Feb, 9, 1 2-Feb, 1, 11 2-Feb, 2, 14 2-Feb, 6, 2 2-Feb, 18, 1 etc. I want the data in this example to give me 2 columns of bubbles. When I try to get excel to create the chart I can't get the date to appear at on the x axis; I get a count (representing the row of the data) instead, and as each row is a separate column, the values don't line up for the date. Can this be done in Excel 2007 without using VBA?

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• Cocoa Memory Usage

  - by user288024

  I'm trying to track down some peculiar memory behavior in my Cocoa desktop app. My app does a lot of image processing using NSImage and uploads those images to a website over HTTP using NSURLConnection. After uploading several hundred images (some very large), when I run Instrument I get no leaks. I've also run through MallocDebug and get no leaks. When I dig into object allocations using Instrument I get output like this: GeneralBlock-9437184, Net Bytes 9437184, # Net 1 GeneralBlock-192512, Net Bytes 2695168, # Net 14 and etc., for smaller sizes. When I look at these in detail, they're marked as being owned by 'Foundation' and created via NSConcreteMutableData initWithCapacity. During HTTP upload I'm creating a post body using NSMutableData, so I'm guessing these are buffers Cocoa is caching for me when I create the NSMutableData objects. Is there a way to force Cocoa to free these? I'm 90% positive I'm releasing correctly (and Instruments and MallocDebug seem to confirm this), but I think Cocoa is keeping these around for perf reasons since I'm allocating so many MSMutableData buffers.

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• Reverse engineering to get answers

  - by cornjuliox

  So I've spent the last few days looking for a way to create a simple image drawing app with wxPython, and I think the key to doing just that is understanding how to use Device Contexts. The problem is that the wxPython demo program doesn't demonstrate DCs, and the docs for both wxPython and wxWidgets don't explain as much as I'd like to know so I've decided to try and 'reverse engineer' an existing app to see how its done. The first problem I have is that I don't know of any drawing apps written in wxPython (or any written in Python for that matter o.o), and the second is I don't know how I'd go about doing it. Am I right in saying that I'm going to need a copy of an application's Python source and something like Winpdb? What do professional programmers do when they find themselves in a situation like mine, needing answers that the docs don't provide?

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• Reverse Engineering Custom Data File

  - by kerchingo

  At my place of work we have a legacy document management system that is now unsupported by the developers due to variours reasons, i have been asked to look into extracting the documents contained in this system to eventually be imported into a new 3rd party system. From various tracing and process monitoring I have determined that the document images (mainly tiff files) are stored in a number of 1.5gb files, these files seem to be read from a speficic offset and then written to a tmp file that is then served via a web app to the client and then deleted. I guess i am looking for suggestions as how I can inspect these large files that containn the tiff images and eventually extract and write them to individual files.

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• Where/what is the specification for odata.service meta tag?

  - by Sam Saffron

  I would like to add some tags to our web app to enable auto-discovery of our odata feeds. So for example Nerd Dinner has the following tag: <link rel="odata.service" title="NerdDinner.com OData Service" href="/Services/OData.svc" /><link rel="odata.feed" title="NerdDinner.com OData Service - Dinners" href="/Services/OData.svc/Dinners" /> The trouble is that I have 4 different feeds and am unclear if I am allowed to add multiple link rel="odata.service" to the document. Where is the specification for this meta tag? (follow on question, are there any apps that take advantage of this tag that I can use to test out behavior)

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• Extending a DropDownList control

  - by Andrew Robinson

  I have a rather large application that has literally a hundred DDLs with Yes / No ListItems. In an attempt to same myself some time, I created a Custom Control that extends the standard DDL. It all seems to work fine but I am having some issues when assigning the SelectedValue property in code where the selected value does not seem to have an affect on the control. I wonder if I should be adding my items during Init or PagePreLoad? Should I be calling base.OnInit before or after I add the list items? This mostly works but not 100%. (v3.5) public class YesNoDropDownList : DropDownList { protected override void OnLoad(EventArgs e) { base.OnLoad(e); if (!Page.IsPostBack) { base.Items.Add(new ListItem("Yes", "YES")); base.Items.Add(new ListItem("No", "NO")); } } }

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• Can you authenticate into SSAS with AD LDS (ADAM) accounts?

  - by Jaxidian

  I'm very new to AD LDS and experienced but not qualified with SSAS, so my apologies for my ignorances with these. We have a couple implementations where we expose SSAS via an HTTPS proxy (msmdpump.dll) and currently we have a temporary domain setup handling this (where our end-users have a second account+creds to manage because of this = non-ideal). I want to move us towards a more permanent solution which I'm thinking of moving all authentication to AD LDS for our web apps, SSAS, and others. However, SSAS is where I'm concerned about this. I know SSAS requires Windows Authentication and to play nicely, and that this ultimately means Active Directory will be involved. Is there a way to get this done with AD LDS instead of having to use a full AD DS implementation? If so, how?

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• Best way of implementing a batch like operation in a RESTful architecture?

  - by Nirav

  Hello, We have a predominantly RESTful architecture for our product. This enables us to nicely implement almost all of the required functionality, except this new requirement thats come in. I need to implement a page which lets the user to large scale DB operations synchronously. They can stop the operation in between, if they realized they made a mistake (rather than waiting for it to complete and doing an undo operation) I was wondering if some one could give some pointers as to what would be the best way to implement such a functionality? Cheers! Nirav

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• Wireframe mock-up software

  - by Dave Jarvis

  Requirements Looking for wireframe mock-up software for web apps with the following constraints: Desktop application (supports Linux) (can be online) Export all pages to separate image files (PNG or SVG preferred) Template for all pages Drag and drop standard HTML widgets for <forms> Tabbed panels (that allow content on the different tabs) Shuttle controls Saves in an XML format (XSLT could convert to HTML) Widget alignment and resizing (relative to other widgets) Under $100.00 USD Examples That come close: Cacoo - Not a desktop application; does not have a true tabbed panel widget Pencil - Export feature has serious bugs (missing text); no template? Balsamiq - Installation proved cantankerous on Linux (due to Adobe AIR) Mockingbird - No shuttle controls; no auto-resize of widgets Pencil & paper - Not a good look for a formal document presented to clients Any others that meet the requirements?

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• Pseudorandom crashes in Flash Debugger - My bad, or Abode's?

  - by rinogo

  I'm working on a large-size dual AS3/Flex project (some parts are pure AS3, other parts are Flex), and I'm experiencing a lot of Flash Debugger crashes. These crashes aren't completely random - it seems like I can get them to occur with greater consistency when I perform certain actions in my app. However, at the same time, they aren't consistently repeatable - sometimes a set of actions causes my app to crash, and other times, the same steps execute fine without a crash. I have two questions (carefully worded to remove my personal bias :) ) Are these crashes due to my coding practices, or Adobe's Flash Debugger? When I deploy my app on a web site and access it via Flash Player, should I expect the same crashes to occur, or is Flash Player considerably more resilient than Flash Debugger? Thanks so much, all! :) -Rich

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• Looking for calculator source code, BSD-licensed

  - by Horace Ho

  I have an urgent project which need many functions of a calculator (plus a few in-house business rule formulas). As I won't have time to re-invent the wheel so I am looking for source code directly. Requirements: BSD licensed (GPL won't help) in c/c++ programming language 32-bit CPU minimum dependency on platform API/data structure best with both RPN and prefix notation supported emulator/simulator code also acceptable (if not impossible to add custom formula) with following functions (from wikipedia) Scientific notation for calculating large numbers floating point arithmetic logarithmic functions, using both base 10 and base e trigonometry functions (some including hyperbolic trigonometry) exponents and roots beyond the square root quick access to constants such as pi and e plus hexadecimal, binary, and octal calculations, including basic Boolean math fractions optional statistics and probability calculations complex numbers programmability equation solving

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• Psuedo-Backwards Builder Pattern?

  - by Avid Aardvark

  In a legacy codebase I have a very large class with far too many fields/responsibilities. Imagine this is a Pizza object. It has highly granular fields like: hasPepperoni hasSausage hasBellPeppers I know that when these three fields are true, we have a Supreme pizza. However, this class is not open for extension or change, so I can't add a PizzaType, or isSupreme(), etc. Folks throughout the codebase duplicate the same "if(a && b && c) then isSupreme)" logic all over place. This issue comes up for quite a few concepts, so I'm looking for a way to deconstruct this object into many subobjects, e.g. a pseudo-backwards Builder Pattern. PizzaType pizzaType = PizzaUnbuilder.buildPizzaType(Pizza); //PizzaType.SUPREME Dough dough = PizzaUnbuilder.buildDough(Pizza); Is this the right approach? Is there a pattern for this already? Thanks!

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• Play Framework: Real-world production experiences?

  - by Rob

  Has anyone used the Play framework for a reasonably complex or large, deployed production app yet? If so, I would like to hear what the pros and cons of that experience were and what you might do differently if you could start over. In particular, I'm interested in how well it worked for projects that are big enough that it requires a small team and/or apps that had requirements that go beyond what demo/test projects can (e.g. scalability requirements). The other question on this topic does not cover use in production, and as we all know, the true wins (and gotchas) of platforms often don't show up until used in battle.

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