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  • jQuery selective hover

    - by Vitor
    Hello everyone, I'm trying to do a simple task with jQuery: I have a list of words which, when hovered, should fadeIn its corresponding image. For example: <a href="#" class="yellow">Yellow</a> <a href="#" class="blue">Blue</a> <a href="#" class="green">Green</a> <img src="yellow.jpg" class="yellow"> <img src="blue.jpg" class="blue"> <img src="green.jpg" class="green"> I'm currently doing it this way for each link/image: $('a.yellow').hover( function () { $('img.yellow').fadeIn('fast'); }, function () { $('img.yellow').fadeOut('fast'); }); The method above works fine, but as I'm still learning, I guess there's a better way to do that instead of repeating functions. Can anyone give me some light here? How can I improve this code?

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  • clear javascript console in Google Chrome

    - by Reigel
    Hi, I was wondering if I could clear up the console with some command.. console.log(), can print... is there a command to clear up console?.. I've tried to console.log(console); and got this functions below... assert: function assert() { [native code] } constructor: function Console() { [native code] } count: function count() { [native code] } debug: function debug() { [native code] } dir: function dir() { [native code] } dirxml: function dirxml() { [native code] } error: function error() { [native code] } group: function group() { [native code] } groupEnd: function groupEnd() { [native code] } info: function info() { [native code] } log: function log() { [native code] } markTimeline: function markTimeline() { [native code] } profile: function profile() { [native code] } profileEnd: function profileEnd() { [native code] } time: function time() { [native code] } timeEnd: function timeEnd() { [native code] } trace: function trace() { [native code] } warn: function warn() { [native code] } __proto__: Object [ I guess there's no way to clear up the console... but I wanted someone to say it to me... ]

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  • Audio Conversion C#

    - by Will
    What is the best way to convert various audio formats to PCM? For example: mp3, evrc, ogg vox. Is there a library out there that will allow me to implement this relatively easily? EDIT: I guess my initial question wasn't really what I needed. Most of the libs I have found are file converters. What I need is a block converter, where I pass in a 1Kb block of vox data and it returns its converted PCM block. Of course I’ll have to tell the converter what type of data it is and various pieces of codec information. The solution I am going for is to save and VOIP formats into a common wav format and to play that conformed file in real time. I thought there should be an easy way to do this because all audio is eventually turned into PCM before it is outputted anyways.

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  • PHP preg_replace function returns different values with the same data set

    - by patryk
    I need to use preg_match PHP function. I have a simple pattern to check the string and the thing is as follows: when I run the script at first, it gives me no match (it is supposed to match though) but when I hold F5 in my browser for a while, out of a sudden it says there's a match within the string. As I keep pushing F5, it gives either true or false. Say the pattern is /^(.*)\/[A-Za-z0-9]*$/ (I guess it's not the best way but still) and the subject is galeria/zdjecia/. I believe preg_match should return true with this set of data. Note that the data does not change when pressing F5. Why is that?

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  • Custom Events in pygame

    - by SapphireSun
    Hello everyone, I'm having trouble getting my custom events to fire. My regular events work fine, but I guess I'm doing something wrong. Here is the relevant code: evt = pygame.event.Event(gui.INFOEVENT, {'time':time,'freq':freq,'db':db}) print "POSTING", evt pygame.event.post(evt) .... Later .... for event in pygame.event.get(): print "GOT", event if event.type == pygame.QUIT: sys.exit() dispatcher.dispatch(event) gui.INFOEVENT = 101 by the way. The POSTING print statement fires, but the GOT one never shows my event. Thanks!

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  • fql query problem in php

    - by yostwal007
    I want to fetch the names of users on facebook. For that, I tried using FQL query. The code is, $result = $facebook->api_client->fql_query("SELECT name FROM user WHERE uid='$user_id'); But there is some problem with this. I guess the query is not getting executed or it is returning null values. I also tried using users.getInfo as follows, $result = $facebook->api_client->users_getInfo($user_id,'name'); But again, the same problem. I tried to display the array as, echo $result['name]; So, I tried both the codes as, if(!$facebook->api_client->fql_query("SELECT name FROM user WHERE uid='$user_id')) { echo "Error."; } I have included both facebook.php and facebookapi_php5_restlib.php in my php file. Where am i going wrong?

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  • Entity Framework Custom T4 Template

    - by s7orm
    Hello, I am using the Entity Framework 4.0 and I am trying to extend my POCO classes generated by the standart T4 template with some custom properties. The classes which are generated by default from EF (without T4) contain 2 properties for every navigation property - NavigationPropertyId and navigationPropertyReference. What I am trying to do is basically extend the generated POCO class with an "Id" property of the foreign key object. I know that I can do that by editing the POCO t4 template. However I have no idea how I can populate/persist the property - I guess I have to somehow extend/modify the method than converts the object to a sql query and vice versa, but I have no idea where to start. Can anyone help? Edit: I just found out, that the EF team has planned to implement something like this - http://blogs.msdn.com/efdesign/archive/2010/03/10/poco-template-code-generation-options.aspx (see Basic POCO with/without Fixup), however this can take ages, so I rather implement it myself.

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  • Explain Python extensions multithreading

    - by Checkers
    Python interpreter has a Global Interpreter Lock, and it is my understanding that extensions must acquire it in a multi-threaded environment. But Boost.Python HOWTO page says the extension function must release the GIL and reacquire it on exit. I want to resist temptation to guess here, so I would like to know what should be GIL locking patterns in the following scenarios: Extension is called from python (presumably running in a python thread). And extension's background thread calls back into Py_* functions. And a final question is, why the linked document says the GIL should be released and re-acquired?

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  • Rotation of a single UIViewController in a UITabBarController

    - by burki
    Hi! I have a UITabBarController with four UINavigationControllers. Well, I want to enable the rotation just for one of the four UIViewControllers. According to Apple's doc you shouldn't subclass UITabBarController, so I don't wanna do that. All UIViewControllers should support the same orientations that it works, but that's not what I want. How can the single UIViewController, which should support the rotation, detect that the device has changed its orientation? Because unless all the UIViewControllers added to the UITabBarControllers support the same orientation, the methods of the UIViewController for managing the rotation aren't called. I've been searching now for a while, but I haven't already found a pleasant answer. I guess a lot of developers wonder how to manage that. I already thank you for your answer.

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  • Team build of Web Projects generates App_web_xxxx.dll files and TFSBuild.Proj Script

    - by Steve Johnson
    Hi all, I have a web application that has some non-web projects as well. When using Web Deployment, a single assembly is generated for all the aspx.vb files. When using Team Build (TS 2008), a lot number App_Web_xxx.dll file(s) are generated instead of a single assembly. How can i solve this problem and change the TFSBuild.proj file so that it can generate a single Web Assembly instead of a lot number of assemblies. Please help. Thanks Edit: I guess thats because the MERGE operation is not occurring like it used to happen for Web Deployment Project in my solution. How can i enable MERGE of App_web_*.dll files into a single Web.dll assembly file and delete the satellite assemblies? Here is my code from TFSBuild.proj file: (MY web project is in Release|.NET Config and all other projects within the solution are in Release|Any CPU) true .\Debug true true Web true false .\Release true true Web true Please tell me what are the corrections i need to do.,

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  • Generating a Call Hierarchy for dynamicly invoked method

    - by Maxim Veksler
    Hello, Today's world of dynamic invoke, reflection and runtime injection just doesn't play well with traditional tools such as ctags, doxygen and CDOC. I am searching for a method call hierarchy visualization tool that can display both static and dynamic method invocations. It should be easy to use, light during execution and provide helpful detailed information about the recorded runtime session. Now I guess Callgrind could be considered a valid solution for the family C. What tool / technique could you suggest to create a call graph for both static and dynamic method invocation for JVM based bytecode? The intended end result is a graphical display (preferably interactive) which can show path from main() to each method that was invoked. During research for this post I stumbled upon javashot, it seems that this is the kind of approach I'm aiming at, I would prefer that this would be integrated into a kind of profiler or alike which than can be used from within my IDE (Eclipse, IntelliJ, Netbeans and alike). Thank you, Maxim.

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  • Read and write into a file using VBScript

    - by Maddy
    How can we read and write some string into a text file using VBScript? I mean I have a text file which is already present so when I use this code below:- Set fso = CreateObject("Scripting.FileSystemObject" ) Set file = fso.OpenTextFile("C:\New\maddy.txt",1,1) This opens the file only for reading but I am unable to write anything and when I use this code:- Set fso = CreateObject("Scripting.FileSystemObject" ) Set file = fso.OpenTextFile("C:\New\maddy.txt",2,1) I can just use this file for writing but unable to read anything. Is there anyway by which we can open the file for reading and writing by just calling the OpenTextFile method only once. I am really new to VBScript. I am only familiar with C concepts. Is there any link to really get me started with VBScript? I guess I need to have a good knowledge of the objects and properties concepts.

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  • ASP.NET MVC - Custom validation message for value types

    - by Giovanni Galbo
    When I use UpdateModel or TryUpdateModel, the MVC framework is smart enough to know if you are trying to pass in a null into a value type (e.g. the user forgets to fill out the required Birth Day field) . Unfortunately, I don't know how to override the default message, "A value is required." in the summary into something more meaningful ("Please enter in your Birth Day"). There has to be a way of doing this (without writing too much work-around code), but I can't find it. Any help? EDIT Also, I guess this would also be an issue for invalid conversions, e.g. BirthDay = "Hello".

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  • ASP.Net 4.0 on IIS6 vs IIS7

    - by JBeckton
    I am trying to convince my boss to upgrade a couple web app servers from Win 2003 to Win 2008 so I can utilize ASP.Net 4.0 on IIS7. I am also trying to get our SQL Server 2000 upgraded to 2008 so I can use Linq2SQL in VS2010 plus a bunch of other reasons. But the boss is experiencing sticker shock now that I have told him what it all costs. So I guess I have to possibly cut back some where. My question is what are the benefits of ASP.Net 4.0 on IIS7 over ASP.Net 4.0 on IIS6 or are there any real benefits?

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  • Newbie can't get Tomcat to reload Flex/BlazeDS application

    - by Captain Aporam
    I'm an experienced 'old school' programmer, but new to Tomcat and Flex. I've followed the getting started for BlazeDS. I'm making changes to the Flex code using Flex Builder 3, but I just can't get the changes to show up when I refresh the page on my client. Server and client are separate physical machines, I've even re-started the server hardware. One curious thing, even when I re-started the server I didn't have to re-login to the Tomcat manager page - I didn't restart my client, I guess it remembers my session? TIA, getting frustrated - like my flex page is 'write once'.

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  • GC.AddMemoryPressure

    - by Steve Sheldon
    I am writing an application in C# that makes use of a 3rd party COM DLL, this dll creates a lot of resources (like bitmaps, video, data structures) in unmanaged memory. While digging around I came across the following call for the Garbage Collector: GC.AddMemoryPressure(long long bytesAllocated) It is documented in MSDN here: http://msdn.microsoft.com/en-us/library/system.gc.addmemorypressure.aspx This sounds like something I should be calling since this external dll is createing a lot of resources the CLR is unaware of. I guess I have two questions... How do I know how much memory pressure to add when the dll is 3rd party and it's not possible for me to know exactly how much memory this dll is allocating. How important is it to do this?

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  • access denied trying extracting an archive on the windows user temp folder

    - by Hanan
    I'm trying to run a command-line process (which is extraction of a .7z archive) on a file that lies in a temporary folder on the windows user temp directory (C:\Documents and Settings\User\Local Settings\Temp), using Process in my c# app. I think the process return error that happens because of "access denied" because I can see a win32Exception with error code 5 when I dig in the prcoess object of .NET. doing the same on some other location worked fine before, so I guess maybe it's something I'm not supposed to do ? (running a process to use a file on the the %TEMP%) perhaps I need to pass security somehow?

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  • how to show legend in graphs using flot

    - by robezy
    Hi, I'm using flot library to show plot graph. I need to show the legend in a separate div. Quoted from flot api. If you want the legend to appear somewhere else in the DOM, you can specify "container" as a jQuery object/expression to put the legend table into. So i wrote the legend options as below. "legend":{"show":true,"container":"jQuery("#placeholder")"}} Unfortunately it is not showing anything? is this the correct way of writing legend option? One good thing is it not showing default legend. so i guess the problem is with way i wrote the container . Any thoughts? Thanks

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  • Default values for model fields in a Ruby on Rails form

    - by Callum Rogers
    I have a Model which has fields username, data, tags, date, votes. I have form using form_for that creates a new item and puts it into the database. However, as you can guess I want the votes field to equal 0 and the date field to equal the current date when it is placed into the database. How and where would I set/apply these values to the item? I can get it to work with hidden fields in the form but this comes with obvious issues (someone could set the votes field to a massive number.

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  • Understanding a multilayer perceptron network

    - by Jonas Nielsen
    Hi all, I'm trying to understand how to train a multilayer, however, I'm having some trouble figuring out on choosing the amount of neurons in my network. For a specific task, I have four input sources that can each input one of three states. I guess that would mean four input neurons firing either 0, 1 or 2, but as far as I'm told, input should be kept binary? Furthermore am I having some issues choosing on the amount of neurons in the hidden layer. Any comments would be great. Thanks.

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  • Embedding PDF documents into websites

    - by papermate
    I need to embed some PDF documents into a website. The last time I did this, I used a jQuery lightbox to popup an iFrame with the PDF document as the URL. The client's PDF viewer would then take care of the rest. Apparently though, that was a bit buggy on some other peoples browsers. I guess it was due to the large PDF file sizes and the effort it took for their computers to fire up Adobe. So I'm after ideas on how to go about this. How do you guys embed your PDF's into websites? Or do you just stick to adding a download link?

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  • Good websites and/or books to learn game algorithms?

    - by Moshe
    I'm interested in learning video game algorithms. (For iPhone particularly, but generally as well. I assume certain concepts are the same.) I am best off (personally) learning from a book but websites are useful too. What has helped you learn game programming algorithms and concepts? EDIT: As per request, I'll clarify the types of algorithms... I was looking for any algorithms really, but I guess I was interested in (top-down view) platformer algorithms, but, now that you mention it, Seth, I do wonder about chess...

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  • Quartz in Webapplication

    - by JKV
    I have a question in scheduling jobs in web application. If we have to schedule jobs in web application we can either use java util Timer/TimerTask or Quartz(there are also other scheduling mechanism, but I considered Quartz). I was considering which one to use, when i hit the site http://oreilly.com/pub/a/java/archive/quartz.html?page=1 which says using timer has a bad effect as it creates a thread that is out of containers control in the last line. The other pages discuss Quartz and its capabilities, but I can read that Quartz also uses thread and/or threadpool to schedule tasks. My guess is that these threads are also not under the containers control Can anybody clarify this to me Is it safe to use Quartz in my web applications without creating hanging threads or thread locking issues? Thanks in advance

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  • Getting started developing JSDT/wst.jsdt?

    - by leeand00
    In my other question I spotted a bug in the Eclipse wst.jsdt. If I want to fix this myself, what are the knowledge dependencies for doing so? My guess would be: Know how to use CVS Know how to use Bugzilla Know how to develop core libraries in Eclipse Know how to develop plugins in Eclipse Know how to develop for the wst.jsdt project I've never done the latter three, so I was just wondering if anybody could point me in the right direction. I already looked at a document for developing in JSDT, but I'm still a little uncertain about what I need to look for to develop for Eclipse, since it comes in various flavors/distros (i.e. WDT)

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  • newbie question -- how does one override show for a newtype?

    - by gatoatigrado
    I want to override the default integer constructors in Haskell so they produce strings (mostly for curiosity, but temporarily to make a nice input alternative for LaTeX's \frac{}{} inconvenience). I wanted to be able to use the language itself, instead of a special parser, but I guess that's probably not going to work out... module Main where import Prelude hiding ((+)) newtype A = A Int deriving (Eq, Show, Num) default (A) (+) :: A -> (A -> String) (A a) + (A b) = (show a) ++ " + " ++ (show b) main2 = 3+4 main :: IO () main = putStrLn main2 The problem with the above is that the + function only works for (A, A) instead of (A, String), etc. If one simply leaves out the pattern match "(A a)" and writes "a" instead, then the show() function prepends "A " so "3" becomes "A 3" instead of just "3". I want to override Show for A, but it seems to be quite a headache...

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