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• How can i calculate an optimal UDP packet size for a datastream?

  - by Andrew Bolster

  Short radio link with a data source attached with a needed throughput of 1280Kbps over IPv6 with a UDP Stop-and-wait protocol, no other clients or noticeable noise sources in the area. How on earth can i calculate what the best packet size is to minimise overhead?

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• HCI - How to evaluate a device to the relation with these theories such as: "senses (Visual, Auditor

  - by Mr blue

  How can to evaluate a computerized device or a software application in the HCI field to the relation with these theories such as: "Senses (Visual, Auditory, Haptic) and cognition (short term and long term memory)" and based on the context where the device is used? Any help or advice is appreciated. Thanks

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• Node.js or Erlang

  - by gotts

  I really like these tools when it comes to the concurrency level it can handle. Erlang looks like much more stable solution but requires much more learning and a lot of diving into functional language paradigm. And it looks like Erlang makes it much better when it comes to multi cores CPUs(fix me if I'm wrong). But which should I choose? Which one is better in the short/long term perspective?

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• How do i change the start in path of a shortcut for nsis?

  - by Lodle

  I have an nsis installer script for the application im working on and it can place a shortcut on the desktop and in the start menu folder but each shortcut has the wrong start in path and as such the app saves data files to where the short cut is. Is there an easy way to change the start in path as the documentation was less than helpful on the matter? Section "Desktop Shortcut" SHORTCUT SetOutPath "$DESKTOP" CreateShortcut "${FULL_APP_NAME}.lnk" "$INSTDIR\${APP_NAME}.exe" "" "$ICONDIR\${DESKICO}" SectionEnd

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• Open tab from TabNavigator with actionscript in flex

  - by johnorange

  A short question: I've got a TabNavigator with multiple canvas children. How can i open one of the children with actions script (imagine it as a tab with an intro and after login the tab with content needs to be opened). I have tried this.parentDocument.tabs.selectedIndex(1); but that doesnt work.

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• Eclipse with JDK in Ubuntu 10.04

  - by Bart van Heukelom

  A short question: My eclipse project is set to use the "sun-java-6-openjdk"-supplied JDK library, but I cannot Ctrl-click to view source (no source attached), as I can do out-of-the-box on Windows. How do I make this work?

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• How to set gtk file chooser button default to user's home folder

  - by Connel

  I've got a gtk file chooser button on my application I am writing in c# using Mono Develop. I would like to set the file chooser's default location to the users' home directory regardless of what user is running it. I've tried the ~/ short cut - fchFolder1.SetCurrentFolder("~/"); - but this did not work. I was just wondering if there was a value that the gtk file chooser used to refer to the users home directory? Thanks

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• How can I synchronize a text with audio/sound in XNA/XACT?

  - by Omkar

  Hello Geeks, I wanted to display the text while sound is playing at background. In short if there is sound/audio for "What is this", I want to display the text "What is this" in text box synchronously. Is this possible with XNA/XACT? and can I use this in standard C# based WPF or Silverlight applications? Appreciating your help.

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• What is your favourite cleverly written functional code?

  - by sdcvvc

  What are your favourite short, mind-blowing snippets in functional languages? My two favourite ones are (Haskell): powerset = filterM (const [True, False]) foldl f v xs = foldr (\x g a -> g (f a x)) id xs v -- from Hutton's tutorial (I tagged the question as Haskell, but examples in all languages - including non-FP ones - are welcome as long as they are in functional spirit.)

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• Adobe Reader unable to open downloaded file in IE6

  - by chillysapien

  I'm working on a web app that allows users to downloaded dynamically generated PDF files. This works fine in IE8 and Firefox but fails in IE6 with Adobe Reader giving the message "there was an error opening this document. this file cannot be found" If I save the file to disk first then it opens fine in Reader. I've given the file a simple short filename, without spaces so not sure what else to try. Any suggestions are very welcome.

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• Is it possible to move the stage in actionscript 3.0?

  - by Joe.F

  Hi to keep it short and simple let's say I have a stage with 400x400 size in pixels, but I've drawn a map of 1000x1000 size in pixels. I want my player to be able to "walk" about the stage, but it appears stage.x and stage.y are read-only? Is there any method or way to have the stage "scroll" about, without having to move each object on the map? Thanks!

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• What is the simplest and most impressive piece of jQuery code you've seen?

  - by Matias

  I think the question is clear enough, but I'd like to clarify it because it's subjective at some point and I don't want it closed. I want to see some short jQuery examples with awesome results (either from the user or from the programmer perspective), that would not be that easy using straight javascript without any library. I find this question useful to be aware how using jQuery simplifies your js code.

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• Can I disable the cursor change to hour glass when invoke TTaskDialog.Execute?

  - by Chau Chee Yang

  Hi, I am using Dialog 2010 and Windows 7. When I invoke TTaskDialog.Execute method, there is a short flash of screen cursor change to hour glass. Is there any way to get rid of it? As it doesn't have much meaning for a simple task dialog but causing some delay to wait for the dialog prompt out.

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• Open source interactive color theme chooser

  - by Sam Saffron

  I would like to give my users something similar to crystallines color chooser or themeroller so they can interactively theme the site. Is there an open source solution that would go most of the way in this respect? Short of that what color picker would you recommend?

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• Shortcut for rake db:migrate:down for ruby-on-rails

  - by Michaël

  Hi, I want to know if there is a short way to do the migrations down equivalent to rake db:migrate (for the migrations up). Instead of doing : rake db:migrate:up VERSION=1, rake db:migrate:up VERSION=2, ... we can do : rake db:migrate! But for : rake db:migrate:down VERSION=10, rake db:migrate:down VERSION=..., rake db:migrate:down VERSION=1, is there a shortcut? Tank you for your help!

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• How can I read the HTML contents of the file which contains a button

  - by Amarsh

  Folks, I have a HTML file which contains a button called "Email this content to me". Upon pressing this button, I want the complete HTML content of the file to be emailed to me. Can someone tell me if there is a javascript function to do that. A short example would go a long way :) Thanks in advance

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• Sound Manager Classes for Windows

  - by Yakov

  I need some classes for playing short wav sounds, this classes would load this wav files into memory when an instance created, play sounds in background when needed, release this wav files from memory when an instance disposed. How can I do this on C# for windows (.Net 2.0)? (Win API's sndPlaySound, OpenAL or may be any wrapper) Ideally I would love to find an exist solution that simple and able to solve my task. Do you know any solutions for this issue?

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• JSON Web Service over simple HTTP GET/POST

  - by whoi

  Hi; Can you suggest a way or a framework or etc. for JEE in order to make simple HTTP GET/POST calls to some web services like in SOAP web services but transport format must be JSON; not XML and there must not be any wrapper around(may be some vey lightweight header) like SOAP etc. In short, my purpose is to serve web services using JSON and HTTP Get/Post in a maximum possible lightweight solution. Thanks

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• adding a header to pyqt list

  - by Moayyad Yaghi

  hello i want to add a headers and index to a list in pyqt , it's really not important what list of QT (qlistwidget , qlistview , qtablewidget, qtreeview) in short .. i want something like the spin box delegate example in the pyqt demo ... but instead of the index in the column headers i want a strings ... hope the idea is clear enough thanx in advance

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• how to find Signal Strength of connected bluetooth devices

  - by Rajendar

  Hi, In one of my application I need to display all the Wifi and bluetooth devices which are paired to my mobile and it's Signal Strengths .Wifi side it is ok for me to display signal strength(RSSI).But i got a problem at Bluetooth side.I searched for the method which is suitable for this task,i found one method that is intent.getShortExtra(BluetoothDevice.EXTRA_RSSI, Short.MIN_VALUE); It is displaying only the new device RSSI which is not paired to my mobile.Is there any idea for getting all bluetooth devices RSSI.Plz give me idea or source code ?

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• What solution programmers prefer to get rid of Myopia?

  - by Emily

  Yes, i have Myopia and that's really annoying and make me blame myself why i've choosen this field. And i think a lot of people like me here who should stay a maximum of 12inches to see the laptop screen clearly :'( What did you choose/Or the best choice in order to correct your short-sight? Glasses Contacts Overnight Contacts Lasik I'm really confused because some people say glasses are decreasing the sight more, other say Lasik is just a luck, others prefer overnight contacts which you sleep with'em.

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• SQL Server stored procedure beginner's guide

  - by Stan

  Please recommend some websites with a quick guide. MSDN is good but it's hard to pick up some basic stuff in a short time. Thanks.

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• Choosing the right template engine

  - by asrijaal

  Hi there, since today - I always used simple JSP Tags and JSTL which works but now I'm looking for a little bit more features and maybe more usability. With googling I've found Freemaker, Velocity and Tiles which seem to be very famous. Does someone of you has some further experiences with some of these and can give me a short brief about it. Or are there other frameworks which are worth to look into?

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• Formatting floats in Python without superfluos zeros

  - by TarGz

  How to format a float so it does not containt the remaing zeros? In other words, I want the resulting string to be as short as possible..? Like: 3 -> "3" 3. -> "3" 3.1 -> "3.1" 3.14 -> "3.14" 3.140 -> "3.14"

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• run an exe on access of folder

  - by Ravisha

  I have a share folder ,which i want to grant access permission to few people only at certain times.i.e. while they try to access the folder ,i should be able to either allow or deny based on my wish.In short its run time access control ,not the static access control already present in windows. Is there a provision to hook a exe as such? I prefer to do it in C# .net

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