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• Ruby on Rails server running in production mode still shows lots of error details?

  - by Jian Lin

  I thought I read that when a Ruby on Rails server is running in production mode, it won't say so much about an error (the details, showing the code)... but I just try to run the server using ruby script/server -e production and add a <%= x %> with the local variable x undefined. It showed a lot of error details including the code... is there a way to make it look better?

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• How to Convert VS2003 proj to VS2005 proj

  - by Cute

  Hi I have test project which i need to convert from VS2003 to VS2005 and i am afraid i got lot of errors and warnigs. The error mostly appeared is ** error C2220: warning treated as error - no 'object' file generated** The same project wil get compiled in VS2003 and executing wel.what i can do??? Thanks in advance

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• How do you change the filtering mode of images in a Flex application?

  - by George Edison

  I have an Image control in my Flex application: <mx:Image id="img" source="@Embed('img.png')" percentHeight="100" percentWidth="100" /> Because the image is scaled, there are a lot of scaling artifacts. Can I change the image to use a different type of filtering?

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• What is the best way to manage unix process from java?

  - by erotsppa

  I'm looking for some simple tasks like listing all the running process of a user, or kill a particular process by pid etc. Basic unix process management from Java. Is there a library out there that is relatively mature and documented? I could run a external command from the JVM and then parse the standard output/error but that seems like a lot of work and not robust at all. Any suggestions?

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• Can I copy a cross compiler tool chain between systems (I did before)?

  - by Jamie

  I tested fairly extensively with Ubuntu 10.04 Beta 2 Server in a VM, and was able to simply copy (read tar x) a cross compiled tool chain from an Ubuntu 8.10 VM. I created the tar myself, which is essentially a lot of stuff in \usr\local. Now that I've got a bare metal installation of Ubuntu 10.04 proper, the copy isn't working. In particularly, I'm getting the error: $ arm-linux-gcc -bash: /usr/local/bin/arm-linux-gcc: No such file or directory I've got the systems side by side in SSH windows ... any suggestions?

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• How to launch from Eclipse in Low priority under Windows?

  - by adum

  I'm running programs from Eclipse (on Windows) that eat a lot of CPU time. To avoid bogging down my whole machine, I set the priority to Low with the Task Manager. However, this is a cumbersome manual process. Is there a way Eclipse can set this priority automatically? EDIT: I realized that each particular launcher (Java, Python etc) has its own configuration method, so I will restrict this question to the Java domain, which is what I need most.

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• USB token with certificate

  - by Frengo

  Hi all! Someone could explain me how the USB token works? I have to implement that secure layer in a java application, but i don't know very well how it works! I know only the mecanism of a normal token key generator! Thanks a lot!

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• Does OOP make sense for small scripts?

  - by Fabian

  I mostly write small scripts in python, about 50 - 250 lines of code. I usually don't use any objects, just straightforward procedural programming. I know OOP basics and I have used object in other programming languages before, but for small scripts I don't see how objects would improve them. But maybe that is just my limited experience with OOP. Am I missing something by not trying harder to use objects, or does OOP just not make a lot of sense for small scripts?

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• set/add view from controller action

  - by user359650

  Hi all, I'm trying to set a view script to be executed in addition to the currently requested action view script. I want to do this from the controller action itself in a way that this new view script output will be available from the layout $this-layout()-content helper. I found the setView() method but don't know how to use it from the controller. Thanks a lot.

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• WPF / Silverlight - Mapping API

  - by Travis

  I am about to start on a project where I need to display maps with cross streets and possibly directions. I know there are a lot of API for the web, but I was wondering what the best solution is for a desktop application. I know of Bing Maps and I believe there are some Google Maps solutions out there as well. Any help or information on good mapping API's would be greatly appreciated. Thanks.

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• IoC.Resolve vs Constructor Injection

  - by Omu

  I heard a lot of people saying that it is a bad practice to use IoC.Resolve(), but I never heard a good reason why (if it's all about testing than you can just mock the container, and you're done). now the advantages of using Resolve instead of Constructor Injection is that you don't need to create classes that have 5 parameters in the constructor, and whenever you are going to create a instance of that class you're not gonna need to provide it with anything

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• Parsing numbers at PreviewTextInput

  - by Nitin Chaudhari

  I have a WPF application in which I have a hook at PreviewTextInput, through that I get the currently entered character and I have the string already entered. Given this I need to write the following function : bool ShouldAccept(char newChar,string existingText) existingText can be comma seperated valid numbers(including exponential) and it should just return false when invalid characters are pressed. My code(if else based) currently has a lot of flaws, I wanted to know if there is any smart way to do it.

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• What does enabling STL iterator debugging really do?

  - by Roddy

  I've enabled iterator debugging in an application by defining _HAS_ITERATOR_DEBUGGING = 1 I was expecting this to really just check vector bounds, but I have a feeling it's doing a lot more than that. What checks, etc are actually being performed? Dinkumware STL, by the way.

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• Using object instead of AppDelegate for Outlets & Actions?

  - by Driss Zouak

  In all the MonoTouch examples I have seen everyone is using outlets and actions on AppDelegate, yet when I've been through some objective-C webcasts I see people using an Object they drag onto XIB in Interface Builder and using that (Seems a lot cleaner). Is there just not a way to reference any Objects like that that we create? Is there a particular way to access it? Any advice would be appreciated, thanks

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• modal forms and shared data,

  - by Tumble

  I've written a couple of c# forms applications which use a lot of the same data/objects which would better be combined. I realise I could use modal forms to launch each of these but where should I state .dll's and other resources, on the parent form? or on each other form where necessary?

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• Resize text area to fit all text on load jquery

  - by CR41G14

  I understand there has been a lot of discussion on this but I have yet to find a solution to fix my needs. Basically I need to autogrow a text area not when you type but on load. I am pulling in content from a database and dependant on the user's settings an overlay is produced over the text area, but upon doing this the text areas are not scrollable therefore I need to autosize these to show all the text. I have tried scrollHeight but this is not working great as there are multiple text boxes on the screen Thanks

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• Can I read Captcha data from JavaScript in a secure way ?

  - by Space Cracker

  We use Captcha control in a registration form that we make full client validation for all fields in JavaScript ( JQuery ) beside server validation .. I tried a lot of ways but all will write the Captcha value in JavaScript that can be accessed by anyone :( I search if is there any way that allow me validate Captcha value in client side using JQuery in secure way or it can't be done ?

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• What does "->" do or mean in PHP?

  - by mas2040

  i have seen this at a lot of place but have never understood its meaning or working... for example: // Registry $registry = new Registry(); // Loader $loader = new Loader($registry); $registry-set('load', $loader); if someone can elaborate this, i will be very greatful.. thanks in avance..

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• JQuery. Check value of select box and textbox with same class, Is it possible?

  - by Cesar Lopez

  I have several select boxes and textboxes with the same class and I have the following statement. if ($('.selTxtClass:visible').val() == "") { $('.selTxtClass:visible').focus(); } } If I do an alert with ($('.selTxtClass:visible').val()) it comes as undefined. I want to check that the value of these elements are empty, but I cant see what is wrong with this if statement, could you give me a hand, please? Thanks a lot.

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• ctypes buffer modification

  - by Chris

  Hi, I need to call a c library from my python code. The c library does a lot of image manipulation, so I am passing it image buffers allocated using create_string_buffer. The problem is that I also need to manipulate and change these buffers. What is the best way to reach in and twiddle individual values in my buffers? The buffers are all uint8 buffers. Thanks!

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• What is the difference between a private and public funtion?

  - by Kyle

  I am a new programmer, and I started in C and am now starting to enjoy JavaScript and a tiny bit of PHP more. Lately I've heard the terms 'private' and 'public' functions a lot. Could anybody give an explanation of the both and how they are of use to a programmer? And I'm probably totally wrong here... but is a (function(){}) in javascript a private function?

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• How to improve HBase Scanner??

  - by WackoMax

  Ho do I configure HBase so that the scanner only retrieves a number of records at a time? Or how do I improve the scanner when the database contains a lot of records/

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• Visual Studio Memory Hog

  - by gentoo_drummer

  I have installed Visual Studio Express Web Developer 2010 and boy it really slows my system down a lot. Is there a way to identify the services like SQL Server and set them to manual so I can avoid all my memory resources been occupied when not using Visual Studio? Is it just SQL Express the problem or are there any other things I should consider disabling in order to have a fast and reliable system when not using Visual Studio? Thanks!

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• Any language binding for MFC ?

  - by Lothar

  THere are a lot of wrappers for toolkits like Qt, Cocoa or WxWidgets for D, Python, Ruby and other languages. I wonder if anyone has ever written a binding for MFC ?

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• using jquery into an ajax nested html file

  - by TrustWeb

  Hello, i am trying to solve this problem: i have a tab interface build with jquery.tools, more exactly i used the ajax tab to load external html files into div. you can see the example here: http://flowplayer.org/tools/demos/tabs/ajax.html i am trying to use jquery to animated the elements loaded by ajax, do you know if and how is it possible? i am trying both loading scripts outside, in the main page, or in the loaded page. thanks a lot

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