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• When to use a namespace or a struct?

  - by Justen

  I was just reading a little bit on them from http://www.cplusplus.com/doc/tutorial/namespaces/ and it seems like a struct is capable of the same things? Or even a class for that matter. Maybe someone here can better define what a namespace is, and how it differs from a struct/class?

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• getting around circular references in Delphi

  - by Tom

  Is there a way of getting around circular unit references in Delphi? Maybe a newer version of delphi or some magic hack or something? My delphi project has 100 000+ lines of code mostly based on singleton classes. I need to refactor this, but that would mean several months of "circular reference" hell :)

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• How to synchronize HTML5 local/webStorage and server-side storage?

  - by thSoft

  I'm currently seeking solutions for transparently and automatically synchronizing and replicating across the client-side HTML5 localStorage or web storage and (maybe multiple) server-side storage(s) (the only requirement here that it should be simple and affordable to install on a regular hosting service). So do you have any experience with such libraries/technologies that offer data storage which automate the client-server storage synchronization and allow data to be available either offline or online or both? I think this is a fairly common scenario of web applications supporting offline mode...

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• JavaScript/jQuery short hand function definitions

  - by Baddie

  I'm using a jQuery plugin that has its functions defined as such: $('#mydiv').pluginAction({ someproperty: val, format: 'mm hh', labels: ['yes', 'no', 'maybe'], labels1: ['never', 'always'] }); In my HTML page, I have multiple DIVs that have the same properties for format, labels, labels1, but different values for someproperty. Is there some type of JavaScript notation I can take advantage of to shorten the definition so that I don't have to have duplicate code?

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• Deploying only changed portions of a war to Tomcat

  - by Marty Pitt

  I'm deploying my application to Tomcat, which currently involves uploading a ~40MB war file to a remote server. Often the changes within the war only affect jars and static content which account for maybe 2 - 3MB's. Is there some tooling I can integrate with my Ant script that can accurately detect the changes to the war and give me a smaller subset to upload?

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• Finalizing a COM object

  - by Neverrav

  I'm trying to implement a singleton class, that holds a com object inside it. Class implements IDisposable interface, but when I try to implement a finalization method, I get an exception of access to com object from another thread. This happens because clr uses a different thread when finalizes objects. Is there any way to implement such a thing or maybe I just doing something wrong?

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• Passing Integer from Android Home Screen Widget to an Activity opened by the Android Home Screen

  - by jmontex2

  Hi, How can we pass Android Home Screen Widget info ( putExtra maybe ) to an Activity.. What particular method callback will handle this one?

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• Nice, clean, simple way of getting a dataset from ASP.NET to plain HTML jQuery or JavaScript library

  - by David S

  I know this is a probable open ended question, and I have tried looking around so much over the last year or two... maybe I am looking for a perfect place that doesn't exist! of course it's all about perception no less.. Anyway, just to clarify what I am trying to do and why: I want to be able to use (primarily for the moment) ASP.NET or services thereof to get a dataset - whatever the source data, I can obviously get a dataset of rows/Columns. I want to be able to, as simply as possible, get that data over to the client via xml/json/whatever, to then use in a "variety" of ways. "Variety" of ways meaning I would like to "easily" bind that data to say a grid, or a combo dropdown or just simply render to a textbox - BUT by referencing the dataset as I would say on the serverside. Now I know this all sounds simplistic, and I know there are lots of complications.. so I have tried the following so far over the last year or so: ExtJS - very good, nice solid framework, but just found it a bit too much to use in everyday basic apps - great if I was building a whole application with it Yahoo YUI - not looked recently, but I guess some of the concepts with ExtJS were similar? JQuery - of course to get data etc, it was ok, and I guess there are so many 3rd party plugins, that a mix and match might work? Adobe SPRY - ironically this was as close to getting a dataset style structure to Javascript/client, although it seemed to drop off/go quiet..? I maybe wrong.. I did have a very cursory play with Tibco GI and another one I cannot remember the name of! but again, it felt like it was great to build a whole app perhaps? Anyway, I am very amazed by all of the technologies coming out, and really not biased one way or the other, I really just want a very simple way of getting data from the server, and having a basic/very flexible way of working with that data in the client without using server technologies.. I need to keep the server flexible as I may need to use PHP, or java technologies not just .NET So again, sorry for the rambles, but if anyone out there has had a simple experience, or would like to share some ideas, it would be very welcomed!! David.

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• C# and web address

  - by gloris

  Hi, Is it possible to find visited websites address with C#? If possible, maybe can you give examples. Thanks

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• How to communicate between Client and Server in a Client-Server Application?

  - by Sanoj

  I would like to implement an Client-Server Application, where the business-logic, security validations and a database are at the server and the user interface are at the client. I would like to implement clients in different languages i.e. one in WPF/.NET, one Swing/Java , one in Android/Java and maybe one HTML/JavaScript client. The server will be on Internet, so I would like to be able to have encrypted communication. The client will send some lists of items to be added to the database, or update items, and do some transactions. The server will check if the items are already updated by another client, or update the item, add new items or delete items. How do I solve the communication between clients and the server in such a system? I have been thinking about: http/https webserver, and sending messages in JSON or XML and use Web Sockets for bi-directional communication. Use http in a RESTful way, except when WebSockets are needed. But I guess there are better solutions for native desktop applications than http? CORBA - I have just heard about it, and it's old and complex. Not much talk about it these days. XMPP/Jabber - I have just heard about it and I don't know if it fits me at all. EJabberd seams to be a popular implementation. AMQP - I have just heard about it and I don't know if it fits me at all. RabbitMQ seams to be a popular implementation. Windows Communication Foundation, Java RMI, Java Message Service - but are they language independent? I guess some of these alternatives are on different levels, maybe I can have i.e xmpp or amqp in web sockets over https? What technologys are used for this problem in companies today? and what is recommended to use? I have no experience of them other than webservers and http. Please give me some guidance in this jungle. What are the pros and cons of these technologies in my situation?

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• Generate random platforms without intersection

  - by DMan

  How would I go about generating random platforms without intersection? I think garbage collection and maybe all that checking may be an issue. I've got the generating tiles part down, but not the intersection checking.

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• Commercial use of Google API

  - by Mac

  This question maybe a better fit on The Business of Software forum but despite my post on there, I'm still unable to determine the following: Can I use the Google API to build commercial software? If not how can the people behind Byline charge for their app? Update: I'm specifically interested in Google's Picasa & Reader APIs

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• Would you like ASP.NET MVC view engine in which a view is created entirely in C#?

  - by amartynov

  Recently I created a spike of a view engine, in which views are plain classes, and the content is created by using funny using-scope blocks. The code together with a simple sample site is available at http://code.google.com/p/sharp-view-engine/ Here I'd like to hear your opinions regarding such an idea. Is it completely weird or maybe someone likes it?

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• Php Tidy : remove link and style tags inside body

  - by Franck

  Hello, I must cleanup some HTML code to remove <style> and <link> tags inside the <body> tag. I'm already using PHP Tidy to do some cleanup but I did not found how to remove those tags with PHP Tidy. Do you have a solution ? Or maybe another markup cleaner PHP class...

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• Using memcpy in the STL

  - by wowus

  Why does C++'s vector class call copy constructors? Why doesn't it just memcpy the underlying data? Wouldn't that be a lot faster, and remove half of the need for move semantics? I can't imagine a use case where this would be worse, but then again, maybe it's just because I'm being quite unimaginative.

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• Ant MXMLC task with arbitrary list of source/lib paths?

  - by sascha

  Does anyone know of a way to use the mxmlc task of the Flex Ant tasks with a user-definable list of source path or library paths? The idea is that the user can define an arbitrary list of source paths and/or library (swc) paths into an Ant properties file and the build file takes these values and evaluates them for use in the mxmlc task. Just wondering if there are any tricks (maybe utilizing filtering/string replacing) to get this working?

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• How does assembly language interact with something like the Internet?

  - by Maulrus

  So I was thinking about languages the other day, and it struck me that any program written in a compiled language that interacts with the Internet is then translated into assembly that has to interact with the Internet. I've just begun learning a bit of x86 assembly to help me understand C++ a bit better, and I'm baffled by how something so low-level could do something like access the Internet. I'm sure the full answer to this question is much more than would fit in a SO answer, but could somebody give me maybe a basic summary?

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• Is it possible to make an OS in python?

  - by None

  I was just wondering if it was possible to make an operating system in python. Nothing fancy. Maybe not even a "real" operating system with a kernel and all. Just a python program that is run when someone inserts the disc containing it that will make a fullscreen display on top of the installed os.

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• HTML to Plain Text with Ruby?

  - by viatropos

  Is there anything out there to convert html to plain text (maybe a nokogiri script)? Something that would keep the line breaks, but that's about it.

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• How to Edit a Google Doc

  - by Tim Lytle

  There doesn't seem to be (to my knowledge) an API to edit Google Docs (not spreadsheets, their HTML based documents). Has anyone done something like the? Maybe by downloading the HTML version, editing and uploading the changes?

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• Find Tables in PDF's

  - by nWorx

  Hello, Are there any tools or tricks how to automatically extract tables from pdfs. Are there any C# libraries that could do that? Or do you maybe know other methods how this could be handled? Thank you very much

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• How to make jQuery UI sortable divs dragged only from an icon?

  - by Axel

  Hi, I've used some jQuery UI sortable plugins but i always found the same problem, i can't select or click inside the sortable DIVs, So, maybe i can find the solution by putting an icon from where you only can drag the div so you can be able to select the other part. How to do that? Thanks

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• Find messages[from-to]

  - by Alfred

  I would like to return all messages from certain key to a certain key. The class should be thread-safe and old keys should be able to be deleted say for example after 30 seconds. I was thinking of using a concurrentskiplistset or concurrentskiplist map. Also I was thinking of deleting the items from inside a newSingleThreadScheduledExecutor. I would like to know how you would implement this or maybe use a library?

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• pure as3 benefits to compiling with flex4 instead of flex3?

  - by jedierikb

  If I have a pure as3 project that I have been compiling with flex3 from mxmlc, is there any reason to switch to using the mxmlc with flex4? I can use all of the flash 10 language features like Vector, 3D, etc., so that is not a reason to switch (or is there something I can't do?). But maybe there is a performance boost? Or is the exact same compiling tool and the flex code base is the only difference?

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• Would you get Delphi Certified ?

  - by Mmarquee

  I think (from recent presentations) Embarcadero maybe about to start (or restart) a Delphi certification programme, so my quesiton is, would you do the certification, and what benefits do you think it would give you?

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