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• Simple/Basic steganography algorithms and methods

  - by tomp

  What are the basic and simpliest steganography algorithms and methods? I mean the steganography applied to images. How does simple program that hides data to images work? How does the program recognize the encrypted message in image without the source image? What are the main techniques used?

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• What good tiny or basic SVG editors are there?

  - by Sander Versluys

  I'm in need for a good SVG editor which can produce valid xml according to spec of the Tiny SVG profile. I would prefer if the tool was open-source or free but good commercial tools are welcome as well. Note: I have used some online tools and Inkscape, but those do not allow specifying the spec they must adhere to.

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• SQLITE Blob OR file system for images

  - by saint cyr

  Hello, I am building an application based on a single table with a column with text. Occassionally, an adjacent column will have an image. Is it better to store this image as a BLOB in SQLITE or should I store them on the file system and reference them from my programs. Thanks!

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• Writing a spec for helper with Ruby on Rails and RSpec

  - by TK

  I have been writing specs for controllers and models, but I have never written a helper spec. I have no idea where I start. I have the following snippet in application_helper.rb def title(page_title) content_for(:title) { page_title } end How should I write a helper spec on the code? Also if there's any open-source Rails app to show good helper testing/specing, do let me know.

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• Paste a multi-line Java String in Eclipse

  - by Thilo

  Unfortunately, Java has no syntax for multi-line string literals. No problem if the IDE makes it easy to work with constructs like String x = "CREATE TABLE TEST ( \n" + "A INTEGER NOT NULL PRIMARY KEY, \n" ... What is the fastest way to paste a multi-line String from the clipboard into Java source using Eclipse (in a way that it automagically creates code like the above).

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• Converting an empty string into nil in Ruby

  - by adi92

  I have a string called word and a function called infinitive such that word.infinitive would return another string on some occasions and an empty string otherwise I am trying to find an elegant ruby one line expression for the code-snippet below if word.infinitive == "" return word else return word.infinitive Had infinitive returned nil instead of "", I could have done something like (word.infinitive or word) But since it does not, I can't take advantage of the short-circuit OR Ideally I would want 1) a single expression that I could easily embed in other code 2) the function infinitive being called only once 3) to not add any custom gems or plugins into my code

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• how many processors can I get in a block on cuda GPU?

  - by Vickey

  hi all, I have two questions to ask 1) If I create only one block of threads in cuda and execute the my parallel program on it then is it possible that more than one processors would be given to single block so that my program get some benefit of multiprocessor platform ? 2) can I synchronize the threads of different blocks ? if yes please give some hints. Thanks in advance since I know I'll get replies as always I get.

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• Cannot deploy asp.net openid library on shared hosting service

  - by asksuperuser

  I have deployed successfully the dotnetopenid dll under IIS7 but on my shared hosting service it says: Compilation Error Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. Compiler Error Message: CS0246: The type or namespace name 'DotNetOpenId' could not be found (are you missing a using directive or an assembly reference?) Why ?

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• What is a de-compiler how does it work?

  - by thyrgle

  So is a decompiler really a thing that gives gives the source of a compiled/interpreted piece of code? Because to me that sounds impossible. How would you get the names of the functions, variables, classes, etc if it is compiled. Or am I misinterpreting the definition? How does it work? And what is the general principal behind making one?

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• What does Trulia use to obtain Apartment listing information?

  - by Hankn

  Trulia recently announced that they now allow search for rental properties. What do they use as the source feed for this rental data?

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• int datatype in 64bit JVM. Is it more "inefficient" than long?

  - by Zwei Steinen

  I heard that using shorts on 32bit system is just more inefficient than using ints. Is this the same for ints on a 64bit system? Python recently(?) basically merged ints with long and has basically a single datatype long, right? If you are sure that your app. will only run on 64bit then, is it even conceivable (potentially a good idea) to use long for everything in Java?

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• How to visualize Feature branches?

  - by crauscher

  We are using separate branches for separate features and we need to visualize these brances. Is there a tool that can help us? We do not need a tool that uses our source-repository to generate the graph. We want to use the tool for planning new branches and for visalizing them.

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• Use TFS 2010 for VS2005 version control w/o TS2005?

  - by ddill65

  My team is moving to TFS 2010, but all of our old projects are from our stand alone VS 2005 and VS 2008. We did not have Team Server. Can put our projects under source control in TFS 2010 without upgrading and migrating them?

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• Looking for a target that works like "_CopyWebApplication" but for console apps

  - by Rihan Meij

  Hi We all ready have build scripts that creates our web application folders very nicely. We create multiple folders for each environment, and then change the configs in those folders according to the environment. How can we get the same results as what _CopyWebApplication does? Example: <MSBuild Projects="$(SourceCodeCheckoutFolder)\source\UI\$(ProjectName)\$(ProjectName).csproj" Targets="ResolveReferences; ResolveProjectReferences; _CopyWebApplication" ToolsVersion="3.5" StopOnFirstFailure="False" RunEachTargetSeparately="False" </MSBuild

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• What alternatives do I have if I want a distributed multi-master database?

  - by Jonas

  I will build a system where I want to reduce single-point-of-failures, and I need a database. Is there any (free) relational database systems that can handle multi-master setups good (i.e where it is easy to add and remove nodes) or is it better to go with a NoSQL-database? As what I have understood, a key-value store will handle this better. What database system do you recommend for a multi-master (cluster) setup?

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• Validation library PHP / Javascript

  - by pistacchio

  Hi, could someone recommend a PHP form validation library (that works independently outside of any php framework) that apart from doing all sort of basic validation (is empty, vs regex, is email, is alphanumeric and so on) can produce javascript code (ideally to work with jquery) to validate the very same form with the very same rules client-side and hence define validation rules in a single place and have a form validated both server and client side? Thanks.

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• Image Uploading in a web aplication.

  - by sandeep manglani

  actually i m devloping a web application that provides facility to users upload the image as we see in orkut and facebook through a form and a upload button.but the actually problem I am facing is : 1.should i store the image in database using Large data objects ie BLOB and the problem arises of retrieving it back from the database and then displaying it on the form. 2.sholud i store the absolute path of the the image in database and provide it to the source tag of the image in the html form.

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• UIScrollview : scroll with 2 fingers and not one

  - by AP

  Hello, I have a UIScrollView containing another wiew. This view need to handle single touch event for drawing. For this reason I would like to scroll using 2 fingers. I managed to get this working for 2.x SDK but it's no more working with 3.X series. Do you have idea/workaround for achieving this? Thanks in advance for your help :)

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• where can i get the spring framework 3.0 distribution?

  - by mlo55

  has anyone been able to download the spring framework 3.0.0.M4 release from the spring source site... (or can you provide an alternative download page)? http://www.springsource.org/download am I missing something..., the site is giving me the runaround... when i get to the "Spring Community Downloads" page and choose spring from the LHS menu... I get no download link... ta in advance...

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• Why is my PowerShell multi dimensional array being interpreted as a 1 dimensional array?

  - by Jim

  I have the following code: function HideTemplates($File, $Templates) { foreach ($Template in $Templates) { Write-Host $Template[0] $Template[1] $Template[2] } } HideTemplates "test.xml" @(("one", "two", "three")) HideTemplates "test.xml" @(("four", "five", "six"), ("seven", "eight", "nine")) It prints: o n e t w o t h r four five six seven eight nine I want it to print: one two three four five six seven eight nine Am I doing something wrong in my code? Is there a way to force PowerShell to tread a multi-dimensional array with a single item differently?

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• How can I perform an idiomatic non-recursive flatten in ruby?

  - by nasmorn

  I have a method that returns an array of arrays. For convenience I use collect on a collection to gather them together. arr = collection.collect {|item| item.get_array_of_arrays} Now I would like to have a single array that contains all the arrays. Of course I can loop over the array and use the + operator to do that. newarr = [] arr.each {|item| newarr += item} But this is kind of ugly, is there a better way?

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• MVC + Extjs + IIS6 + Wildcard Mapping = Post Form resulting in 302 object moved

  - by Orkun Balkanci

  Everything seems to work fine until i want to submit the form and update the database. Wildcard mapping works on requests like "/navigation/edit/1", but when i submit the form as: var ajaxPost = function(Url, Params) { Ext.Ajax.request({ url: Url, params: Params, method: 'POST', async: false, scope: this }); }; it says "200 bad response: syntax error" and in firebug there is "Failed to load source for: http://.../Navigation/edit/1". Any help?

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• How to obtain The Oracle Package name from a Crystal Report file using .NET code

  - by eschneider

  I'm trying to obtain the Oracle package name used for a Crystal report data source using .NET code. I have obtained the procedure name, but for some reason I can not find the package name. Dim rpt as new ReportDocument rpt.Load(filename) Dim procedureName As String = rpt.Database.Tables.Item(0).Location Dim DataSourceAliasName As String = rpt.Database.Tables.Item(0).Name Currently using .NET Crystal Decisions version: 10.5.3700.0

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• Run time Debugging

  - by Prakash

  We have recently downloaded, installed and compiled gcc-3.0.4 code. gcc compiler has built successfully and we where able to compile some same test cpp file. I would like to know how we can modify gcc source code so that we add additional run time debugging statements like the binary in execution compiled by my gcc should print below statement in a log file: filename.cpp::FunctionName#linenumber-statement or any additional information that I can insert via this tailored compiler code Any references would be highly appreciable.

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• Convert to valid lat/long codes

  - by Henk

  Hi all, My source gave me the following lat and long codes from Amsterdam. But I can't get them working with Google Maps. Is there some logic behind it, or some kind of algorithm to convert them? 5,237,300,539,279,090 | 489,290,714,263,916 Should be something like this: 52.378268, 4.888859 How can one tell where the dots should be? Thanks!

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