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• Is algebraic sound synthesis possible?

  - by The Rook

  Lets say you have an normal song with two layers, one instrumental and another of just vocals. Now lets say you also have just the instrumental layer. Is it possible to "subtract" the instrumentals and obtain the pure vocals? Is there going to be loss? How would I go about performing this specific type of subtractive synthesis?

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• How can I access x:Name from Code Behind?

  - by viky

  I have a datagrid in which I am using DataGridTemplateColumn and DataGridTextColumn. I want to access these columns at runtime so I have assigned x:Name property to them. But I was not getting that value in code behind, so I looked for DataGrid and then read objects by iterating through DataGrid.Columns. How can I read x:Name property from that object in C#? I need this to perform some specific operations with particular columns at runtime.

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• php date list for specified duration

  - by user301584

  hi is there any php classes or functions, which will gives us all the days from specific duration? for example, if i want a list of dates from 25/03/2010 (25th march 2010) to 15/05/2010 (15th May 2010), it will give me: 25/03/2010 26/03/2010 26/03/2010 .... .... .... 14/05/2010 15/05/2010 thanks a lot for any help!

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• Tomcat: Cache-Control

  - by Itay

  Jetty has a CacheControl parameter (can be specified webdefault.xml) that determines the caching behavior of clients (by affecting headers sent to clients). Does Tomcat has a similar option? In short, I want to turn off caching of all pages delivered by a tomcat server and/or by a specific webapp?

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• What .gitignore I should use with QT projects? (QT Creator)

  - by Envek

  So, after little thinking I have wrote the following: # In repository we don't need to have: # Compiled object files *.o # Generated MOC, resource and UI files moc_*.cpp qrc_*.cpp ui_*.h # Built windows .exe and linux binaries # NOTE: PROJECT is a your project's name, analog of PROJECT.exe in Linux *.exe *.dll PROJECT # Windows-specific files Thumbs.db desktop.ini # Editors temporary files *~ # Debug and Release directories (created under Windows, not Linux) Debug/ Release/ Please ask, what needs to be added or fixed (especially for Windows - I haven't one under hand now. And Mac too [haven't work in it at all]). I want to keep my repository clear :-)

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• Specifying a callback in Matlab after any runtime error

  - by JmG

  Is there a way to specify code to be run whenever an error occurs in Matlab? Googling I came across RunTimeErrorFcn and daqcallback, but I believe these are specific to the Data Acquisition Toolbox. I want something for when I just trip over a bug, like an access to an unassigned variable. (I use a library called PsychToolbox that takes over the GPU, so I want to be able to clear its screen before returning to the command prompt.)

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• Do Django Models inherit managers? (Mine seem not to)

  - by Zach

  I have 2 models: class A(Model): #Some Fields objects = ClassAManager() class B(A): #Some B-specific fields I would expect B.objects to give me access to an instance of ClassAManager, but this is not the case.... >>> A.objects <app.managers.ClassAManager object at 0x103f8f290> >>> B.objects <django.db.models.manager.Manager object at 0x103f94790> Why doesn't B inherit the objects attribute from A?

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• WPF RichTextBox to create editor with line numbers

  - by John Alden

  I'm creating a text editor for a domain specific language. I'm using the WPF RichTextBox as the basic control. I don't know how to gracefully include line numbering. Does anyone know of any examples?

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• How do I list Clearcase versions without the Fully-qualified verison?

  - by Luciano

  In Clearcase: I'm trying to find the names of all files in the current view without a specific label. So far I've come up with the following: cleartool find -cview -all -version '\!lbtype(LABEL_1)' -print But this ends up displaying the filenames with the "@@/main/BRANCH1/SUBBRANCH" appended to the end, and I really want just the filename. I've tried adding a -short, but the find command doesn't like that option, and I can't find an option in the manuals to change the behavior.

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• What can I do using awk that I cannot do in Perl?

  - by alvin

  I had read somewhere about one specific feature that is present in awk but not in Perl. I have failed in locating it again. I would appreciate it if anyone here can point it out. This might be a useless trivia, but I am still curious to know.

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• In C#, given a DateTime object, how do I get a ISO 8601 date in string format?

  - by Iain

  Given: DateTime.UtcNow How do I get a string which represents the same value in an ISO 8601 compliant format? Note that ISO 8601 defines a number of similar formats: (Wikipedia). The specific format I am looking for is: yyyy-MM-ddTHH:mm:ssZ

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• Can we print only a certain page in a multi page jasper report?

  - by Vaishak Suresh

  Is there a way to print only specific pages in jasper. I need it for pagination purpose. ex: if I have 20 pages, i should be able to get jasper to generate one page report at a time. Can i pass the page number as a param?

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• Why won't IE css fix work for internet explorer8? ie statement end if

  - by judi

  Hi I've applied an ie fix for my site but it doesn't work for ie8. Do I have to be more specific? <!--[if IE]> <link rel="stylesheet" type="text/css" href="/AEBP_Homepage_12887/css/ie.css" /> <![endif]--> Thanks for your help Regards Judi

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• php regex - can't find the error

  - by peirix

  Just one simple, specific question: I've got the string {var1}12345{var2}, and I want to get the variable names used. if (preg_match("/{([a-zA-Z0-9]*)}/g", $url, $matches)) { print_r($matches); } If I remove the global flag, it works, but I only get the first variable, as expected. Why isn't it working with a global flag? It works when I'm testing it with the Regex Tester

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• asp.net state server session - cross appDomain?

  - by newone1

  When using a State server for session, are sessions still appDomain specific? So for example, I have two different IIS applications(virtual directories) on a web server, and they both point to one state server for session. The session guid from the cookie will be the same across requests from both applications, so will the same session be accessible across both of these applications? Thanks.

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• IE6 and IE7 Input padding CSS

  - by Podlsk

  I have input boxes with a height of 25 pixels. In Firefox, Safari and IE8 automatically vertically align the text of it in the middle correctly. However in IE6 and IE7 the text is aligned to the top. How may I resolve this? Adding padding-top increased the total height of the input as I have explicitly declared its height. I don't wish to use browser specific CSS. Thanks.

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• Getting Console Logs for My Cocoa App

  - by enchilada

  I'm making a crash reporter, and I can read the crash reporter files just fine within ~/Library/Logs/CrashReporter. However, I want to also send along with the report any console (NSLog) information that was printed to the console (the stuff that one can see both in Xcode and in Console.app). However, I want to make sure I get only the logs for my app. I don't want logs from other apps. How does one get the console logs for a specific app?

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• Authentication between domains

  - by gneash

  I have: a service running under user account domainA\userA on hostA from domainA SPNs created for the service running on hostA for user account domainA\userA a client part of my application is trying to access resources (through remoting) from the service running on hostA but this client part is running on hostB from domainB and under the user account domainB\userB appropriate delegation settings are done for user account domainA\userA trusted for delegation SPNs set properly with no duplicates domainA and domainB have two way trust I get this error: A secuity package specific error occured: Unspecified error (0x80004005) Could you please see if there is any authentication setting I missed?

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• Is there a way to add a virtual directory to Visual Studio Development Server?

  - by David Hodgson

  Hi, I'm using the Visual Studio Development Server, with a specific port. Is there a way to add a virtual directory to it? EDIT: Sorry, I wasn't very clear. I'd like to be able to add one or more virtual directories to arbitrary physical directories. For instance: http://localhost/c_drive/ would map to C:\, http://localhost:/d_drive/ would map to D:\, etc.

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• Looking for icon shop

  - by citronas

  I'm looking for nice icons for my webapplications. Some of these applications are commercial applications. I want to polish them up by using nice looking icons, but where do I find specific icons/grafics? Does anybody know a icon shop, that allows me to buy single icons for commercial use? Payable via paypal or credit card.

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• Children in Enumeration

  - by marionmaiden

  Hello I have a enumeration for elements in a JTree When I find some specific element in this JTree, I want to check it's children. Do the method children() in a Enumeration check it's grandcildren too? For example, let's supose this JTree, considering the identation as new levels of the tree: Fruits apple grape orange peach pineapple strawberry banana If I get the children of grape, will I have just orange and peach or will I get peach children (pineaple) too?

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• How do I tag files in a directory in a SVN repository with a global version number that will appear

  - by mithaldu

  I am working on a project that stores multiple versions in the same svn repo but in different directories. For ease of reference for the coders working on the project I'd like to be able to add a commented tag similarly to # $Revision: 144 $ However, instead of the file revision it should contain a simple version number like so: # $Version: 1.63 $ # $Version: 1.64 $ # $Version: 2.0 $ Is there a way to get subversion to do this automatically for a specific directory and all sub-directories as well as for any new files added to those?

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• SQL Injection When Using MySQLi Prepared Statements

  - by Sev

  If all that is used to do any and all database queries is MySQLi prepared statements with bound parameters in a web-app, is sql injection still possible? Notes I know that there are other forms of attack other than sql-injection, but my question is specific to sql-injection attacks on that particular web application only.

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• Generalized Bottom up Parser Combinators in Haskell

  - by Panini Sai

  I am wondered why there is no generalized parser combinators for Bottom-up parsing in Haskell like a Parsec combinators for top down parsing. ( I could find some research work went during 2004 but nothing after https://haskell-functional-parsing.googlecode.com/files/Ljunglof-2002a.pdf http://www.di.ubi.pt/~jpf/Site/Publications_files/technicalReport.pdf ) Is there any specific reason for not achieving it?

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• Getting events out of Facebook?

  - by RD

  Is it possible to get event info from Facebook so the following is true: Add events that are not just your own events (i.e. search for general events and not just grab the events you have set as attended by your user) Specify criteria (e.g. get all events for one specific city) If this is possible, what should one use? where do you start?

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