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• How do I reset a countdown timer when it reaches 0? (Xcode 4)

  - by Zac Prunty

  first question and I have researched the heck out of this and can't seem to find any answers. I would like to implement a countdown timer in my app that starts at 30 seconds and resets when it hits 0. It will count back by 1 second intervals. I have played around with the resources that Apple provides and I can't seem to implement the NStimer to do as I just explained. Are there any suggestions on how I could code this? I would eventually like to link this to a button that will start the timer when it is pressed. I appreciate any advice on this topic!

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• how do i get subtext source code without Web platform installer?

  - by Jack

  I check all over the net and i can't find a way to get the new version of subtext without using the Web platform installer? Why do we need to install a installer in order to get the source code? what's the purpose of this additional hoop? does anyone know how to get any of the web app on the web gallery without using the web platform installer? edit: ok, i find it on the link text still what is the purpose of the web installer? why not just give us the source?

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• What is the fastest way to copy content of DVD to hard disc using Linux

  - by Ritesh

  I have gone through some of the links Which talks about fastest way of copying files in windows using FILE_FLAG_NO_BUFFERING and FILE_FLAG_OVERLAPPED . It also talks about how request made for read and write opeartions with BUFFER SIZE as 256KB and 128KB are faster than 1Mb .The link for that is :- Explanation for tiny reads (overlapped, buffered) outperforming large contiguous reads? I am also loking for a Similar method in linux Which allows me to copy the content of my DVD to Hard Disc in a fast Way . So I wanted to know Is there some file operation flags in Linux which would provide me the best result or Which way of Copy in Linux is the best ? My codes are all in c++.

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• Do Url shorteners such as bit.ly serve any purpose in web development?

  - by gath

  I might be missing something here but am unable to understand the true purpose of link shortener services like bit.ly or is it just a lot of hype! Truly if you type nyti.ms on your URL bar on the browser it takes you to www.nytimes.com, but still what is so hard in typing "nytimes.com! which is far much comprehensible to read and understand leave alone to remember! Does shortening URL serve any purpose in web development? Why should someone want use obscure shortened URL?

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• Need example of how to create/manipulate image pixel data with iPhone SDK

  - by whiskeyspider

  Looking for a simple example or link to a tutorial. Say I have a bunch of values stored in an array. I would like to create an image and update the image data from my array. Assume the array values are intensity data and will be updating a grayscale image. Assume the array values are between 0 and 255 -- or that I will convert it to that range. This is not for purposes of animation. Rather the image would be updated based on user interaction. This is something I know how to do well in Java, but am very new to iPhone programming. I've googled some information about CGImage and UIImage -- but am confused as to where to start. Any help would be appreciated.

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• Maintaining the query string in ASP.Net MVC

  - by Mantorok

  Hi all Just beginning my journey in ASP.Net MVC and I have a query about something before I dig myself in too deep. I have a table, which is paged, and I have 2 controls above the table: Dropdown that defines order of the results and apply button next to it Textbox that defines a filter and apply button next to it What I need to achieve is that if the user changes the order or adds a filter I fire of an AJAX call to my action like such: /Membership/Users?sort=value&filter=value&page=pagenumber. So my controller action is: // GET Membership/Users?sort=&filter=&page= public ActionResult Users(string sort, string filter, string page) So I have 3 questions: Is this the correct approach? What would be the best way to ensure that the query string is maintained, bearing in mind that the action will nearly always be called by Jquery/Ajax functions? If I wanted to link directly to this action passing the arguments would I need to hard-code the querystring? Thanks

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• Init from nib, but alloc only [UIViewController]

  - by bobobobo

  So I'm doing this in my code now: UIViewController* ctrl = [[UIViewController alloc] // i'm alloc'ing a UIViewController... initWithNibName:@"TheNibName" // But this NIB has, within // interface builder, a link to "UIViewControllerDERIVATIVE". So really, // `ctrl` is a UIViewControllerDERIVATIVE instance, not just // a UIViewController instance. bundle:nil] ; The reason I'm doing this is it makes a massive convenience in writing some code that pushes modal dialogs on.. since Objective-C doesn't support <template>. My question is, is this ok?? Or will it bite me in the ass later?

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• Project organization in perforce

  - by Chupa

  Hello. I created several web applications that use the same static files (css, js, images). When I use svn for version control, I use an external repository (svn: externals) to add files to the current project. For example: - Project_1 ---- Webapp -------- Static (external to static's repo) - Project_2 ---- Webapp -------- Static (external to static's repo) I could easily use it in their web pages by adding a link like /static/ ... But now our company has moved to perforce. How can I support the current structure? We also use maven, I think to pack these files as a jar and use as a dependency, but then my editor (idea) does not see that this dependence are js-scripts and styles. And i need to repackage and deploy jar file when create minor changes. How to use maven correctly?

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• How to match this with a regex?

  - by andrei miko

  I just wanna use a regex to match something from my products file. I have them in this way "Something here","a link here","website here","date here(eg. 11/12/2012)","description1 here","**description2 here**","some other text here","here also", and so on ... I wanna match with a regex only description 2. I tried this: (?<=[0-9][0-9][0-9][0-9]).*(?=",") but it wasn't good because it was getting me description1, description2 and some quotes also. Thanks in advance.

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• How do I replace NOT EXISTS with JOIN?

  - by YelizavetaYR

  I've got the following query: select distinct a.id, a.name from Employee a join Dependencies b on a.id = b.eid where not exists ( select * from Dependencies d where b.id = d.id and d.name = 'Apple' ) and exists ( select * from Dependencies c where b.id = c.id and c.name = 'Orange' ); I have two tables, relatively simple. The first Employee has an id column and a name column The second table Dependencies has 3 column, an id, an eid (employee id to link) and names (apple, orange etc). the data looks like this Employee table looks like this id | name ----------- 1 | Pat 2 | Tom 3 | Rob 4 | Sam Dependencies id | eid | Name -------------------- 1 | 1 | Orange 2 | 1 | Apple 3 | 2 | Strawberry 4 | 2 | Apple 5 | 3 | Orange 6 | 3 | Banana As you can see Pat has both Orange and Apple and he needs to be excluded and it has to be via joins and i can't seem to get it to work. Ultimately the data should only return Rob

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• Redirects in RoR: Which one to use out of redirect_to and head :moved_permanently?

  - by scrr

  Hello, we are making a website that takes a generated incoming link and forwards the user who is clicking on it to another website while saving a record of the action in our DB. I guess it's basically what ad-services like AdSense do. However, what is the best way to redirect the user? I think html-meta-tag-redirects are out of question. So what other options are there? head :moved_permanently, :location => "http://www.domain.com/" This one is a 301-redirect. The next one is a 302: redirect_to "http://www.domain.com" Are there any others? And which is best to use for our case? The links are highly-dynamic and change all the time. We want to make sure we don't violate any existing standards and of course we don't want search-engines to tag us as spammers (which we are not, btw). Thanks!

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• Facebook graph api - delete like

  - by Martin

  Hi there, I'm developing an app for Facebook in PHP, part of which lists the user's "likes". I would like to add a link next to each like so that the user can manage their likes by deleting them where they see fit. Facebook mentions this in their graph api docs: "You can delete a like by issuing a DELETE request to /POST_ID/likes (since likes don't have an ID)." But each like must have an id - how else would you delete it? Has anyone done this before, any help will be appreciated.

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• Python+Windows+GStreamer = Impossible (for me)?

  - by james

  Hi :) essentially, my problem is, ater a long time searching, finding only this other question, i decided i was just going to ask my own... i am on windows 7 with python 2.6 and ossbuild GStreamer, but i am trying to get the python binding for it, and struggling. i have got gst-python from http://gstreamer.freedesktop.org/src/gst-python/ but as my eyes and research tell me, it does not work in the setup.py way, and the other question has a link to a site that he says has a binary avaiable, which no longer does, http://www.gstreamer-winbuild.ylatuya.es/doku.php?id=download and even the sdk is gone, and ossbuild dont seem to have anything useful either. so essentially, my question is, can anyone tell me a method, however convoluted, of getting my setup so if i write a script for (py)gst, with an import gst it will work? not the best of explanations... im tired k? xxx :)

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• An "About" message box for a GUI with QT

  - by Narek

  QMessageBox::about( this, "About Application", "<h4>Application is a one-paragraph blurb</h4>\n\n" "Copyright 1991-2003 Such-and-such. " "For technical support, call 1234-56789 or see\n" "<a href=\"http://www.such-and-such.com\">http://www.such-and-such.com</a>" ); This code is creating the About message box which I wanted to have with two excaptions: 1. I would like to change the icon in the message box with an aaa.png file 2. And I would like to have the link clickable. It looks like hyperlink (it is blue and underlined) but mouse click does not work Any ideas?

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• [Devise] confirmation_url points to localhost

  - by Ved

  I am using Devise and omniauth for authentication in my rails app. I have followed readme and put the following line in my production.rb : config.action_mailer.default_url_options = { :host => 'http://morning-autumn-487.heroku.com' } My mailer has the following code: <%= link_to 'Confirm my account',confirmation_url(@user, :confirmation_token => @user.confirmation_token) %> When I upload the app to heroku, the confirmation mail has the following link for registration in the email : http://127.0.0.1:3000/users/confirmation?confirmation_token=8TyGWQo6y... Is there a setting that governs this host name ?

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• Record video file with 'thumbnail' image in Windows phone 8

  - by Deepak

  I'm trying to create a video capturing application store video file with 'thumbnail' image in Windows phone 8. I got some hint from the following link : How to get the thumbnail of a recorded video - windows phone 8?. But the result is quite annoying. I think there is some problem with the function. void captureSource_CaptureImageCompleted(object sender, CaptureImageCompletedEventArgs e) { using (IsolatedStorageFile isoStore = IsolatedStorageFile.GetUserStoreForApplication()) { WriteableBitmap wb = e.Result; string fileName = "CameraMovie.jpg"; if (isoStore.FileExists(fileName)) isoStore.DeleteFile(fileName); IsolatedStorageFileStream file = isoStore.CreateFile(fileName); Extensions.SaveJpeg(wb, file, wb.PixelWidth, wb.PixelHeight, 0, 85); file.Close(); captureSource.Stop(); fileSink.CaptureSource = null; fileSink.IsolatedStorageFileName = null; } } e.Result has some invalid data in it.while i bind it to an image control it shows some annoying image. Anyone please help me.

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• Spring-webflow error popup tweak

  - by igorp1024

  There is a link in a spring-webflow2 based application which start different flows. Flows are shown in popup (popup=true). If the session is expired or server is unavailable, the spring-webflow shows small empty popup with "Ajax Request Error" tooltip shown on mouse over. Is it possible to tweak the popup in order to give the user an ability to either re-login or to just close the popup and retry the request? EDIT: Or maybe some ideas how to force Spring-Dojo to make a redirect to login page?

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• awk / sed script to remove text

  - by radman

  Hi, I am currently needed of way to programmatically remove some text from Makefiles that I am dealing with. Now the problem is that (for whatever reason) the makefiles are being generated with link commands of -l<full_path_to_library>/<library_name> when they should be generated with -l<library_name>. So what I need is a script to find all occurrences of -l/ and then remove up to and including the next /. Example of what I'm dealing with -l/home/user/path/to/boost/lib/boost_filesystem I need it to be -lboost_filesystem As could be imagined this is a stop gap measure until I fix the real problem (on the generation side) but in the meantime it would be a great help to me if this could work and I am not too good with my awk and sed. Thanks for any help.

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• How to write my own download manager using Objective C for iOS devices

  - by Saurabh

  I am writing a download manager for iPhone using objective C. I am using ASIHTTP framework and its working great. But my problem is I am not able to download from file sharing sites like filesonic, rapidshare, hotfile etc. I want to know how can I get download (actual download) url from these sites, or at least how these sites are hiding this info (and where), so I can get that somehow... Is there any open source library or framework to help me with this? How firefox or other desktop browser get this link? Any help will be much appreciated! Update 1 : I don't want to bypass their advertising and revenue streams. Almost all file sharing companies also provide free downloads with low bandwidth, I only want to use that service. there are many download managers available now for iPhone like - "Downloads Lite". I just want to build a similar functionality.

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• Rails: How to toggle a boolean field from a view?

  - by sscirrus

  Very simple question. I have a boolean field called "saved" in my database. I want to toggle this field by clicking on a text link that changes from "Save" to "Unsave" depending on the situation, and updates my "Customer" table with 0 or 1. I imagine Javascript may be a way to go for this but I am not experienced enough (yet!) in Javascript to know how to code it. What is the best way to approach this problem, and how can I find the code I would need to drop into my view to make this toggle work? Thank you very much.

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• Finding the best jquery plugins

  - by Lan

  Is there a resource for finding the "best" jquery plugins, or at least just the most used ones? For example, I wanted to find a menu jquery plugin but when I goto the jquery website there are so many to look through and I don't see a way to see how popular each one is. For ruby there's the http://ruby-toolbox.com/ which lists many plugins, how popular they are, info about them, etc. Is there something similar or at least some way to filter through all the jquery plugins? EDIT 1: To shed some more light on this - the "most popular" link on the jquery page is useless. I can't find a way to search through it but even worse, the ratings don't seem to mean much. Ex - the first item, in other words the most popular plugin in that list has 5 stars and TWO votes. Doesn't seem like a very reliable resource to me.

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• "digg" button and encoded url :S

  - by guest86

  Hi! I wrote a php site (it's still a prototype) and i placed a "Digg" button. Placing the button was easy but.... Official manual says "url has to be encoded". I did that with urlencode(). After urlencode, my url looks like this: http%3A%2F%2Fwww.mysite.com%2Fen%2Fredirect.php%3Fl%3Dhttp%3A%2F%2Fwww.othersite.rs%2FNews%2FWorld%2F227040%2FRusia-Airplane-crashed%26N%3DRusia%3A+Airplane+crashed So far, so good but when i want to submit that url to digg, it is recognized as invalid url: http://www.mysite.com/en/redirect.php?l=http://www.othersite.rs/News/World/227040/Rusia-Airplane-crashed&N=Rusia:+Airplane crashed If i place a "+" between "Airplane" and "crashed" (mere end of a link), then digg recognize it without any problems! Please help, this bizare problem is killing my braincells! P.S. for purpose of this answer urls are changed (nonexisting) because, in original, non-english sites are involved P.S.S. Happy New Year! :)

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• Detecting if a browser's cache is full

  - by abitgone

  We've identified that full browser caches are the cause of a problem on our extranet. It only affects a small number of our users, but we'd like to alert them to the problem and give them some guidance on how to fix the problem for themselves. We'd like to use a similar system to the one which GMail uses. When it detects that your browser's cache is full, it shows a warning message telling users that their cache is full and that it may cause problems with GMail, along with a link to a Gmail Help page on clearing your browser's cache. Does anyone know if there any resources out there, or examples of how to use JavaScript to detect that the browser's cache is full? Thanks.

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• PL DOC source forge - 2 issues

  - by user1792793

  I'm attempting to use PLDOC source forge (http://pldoc.sourceforge.net/maven-site/) with my code to generate a neat page with comments of my liking. I'm coming across 2 issues, any help would be appreciated. 1 I've been using tags (/**, */) to make comments and this works perfectly for functions, but does not appear in procedures. My Functions and procedures are independent and not in packages, and trying to add comments before the PROCEDURE declaration just gets deleted when saved. 2 if i try to use the recommended method of getting the data directly from teh database (call pldoc.bat -url jdbc:oracle:thin:@localhost:1521:ORCL -user SCOTT -password TIGER -sql SYS_OWNER.DBMS_PIPE,SYS_OWNER.DBMS_OUTPUT), it puts all the available functions and procedures under the user SIS_OWNER (SIS_owner is the only link available on the left hand side). I want to change this so that I can view all the methods in the list instead. Problem with procedures stated in 1 still exists with this method. Please let me know if you have overcome this and any pointers would be great. Thanks

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• Sharing variable within different javascript file at client side

  - by Aman

  I was actually going through this link. which explains how we can share global variable across multiple js. but the point is what need to be done if I am getting some variable into one js and need to pass to another one mentioned in same document after the 1st one. approach which followed was: Script 1 <script type="text/javascript" src="js/client.js"></script> body added some hidden input with id myHiddenId, where values are set using client.js Script 2 <script type="text/javascript" src="js/anotherJS.js"></script> inside script 2 I am simply using $("#myHiddenId").val(); and using for my purpose. I want to know whether I am following correct approach, because that hidden field may have some data which client should not get aware of. is there any other way through which I can pass the variable values across the js files ? Since I am at beginner level hence digging up some resources/books but still no luck.

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