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• How to disable Skype from using system tray (notification area) on Linux?

  - by Ivan

  I use AWN dock on Linux (which behaves much like Windows 7 panes, using one icon for launching an application and managing its windows). It loses Skype (as well as any other application) when it goes minimized to system tray (notification area). Can I disable Skype from minimizing to system tray favouring Win7-like behaviour? Skype version I use is 2.1 beta, but I would not mind reinstalling it in favour of another version. I use Arch Linux with all the latest kernel, x.org and xfce.

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• shell_exec syntax error. running in terminal directly is ok

  - by Alex

  Having this command: $command = "diff -bBdH --ignore-all-space <(echo 'hi') <(echo 'hi1')"; echo $command; $result = shell_exec($command); On the screen I see: sh: 1: Syntax error: "(" unexpected diff -bBdH --ignore-all-space <(echo 'hi') <(echo 'hi1') If I copy-paste the second line from the console output into the terminal, the result would be correct. (Reproduced on another machine too). I'm missing something dead simple here and can't see what it is. besides, why is my output reversed? I'm clearly echoing the command before executing it, thus the syntax error of the shell should appear after the shell_exec

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• How to split strings at specific intervals to arrays in javascript

  - by t3st

  how to split strings at specific interveals to arrays in javascript for example: split this string into 4 characters (including space and characters) this is an example should be split,numbers(123),space,characters also included to this ------> 1st array is ------> 2nd array an ------> 3rd array exam ------> 4th array ple ------> 5th array shou ------> 6th array ............ etc till..... ..ed ------> last array

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• How do I update Safari on Windows?

  - by James A. Rosen

  I'd like to update Safari to 4.0.5 for security reasons, but I can't figure out how to run the Apple updater manually. On Mac there's usually a "Check for Updates" menu item, but I don't see one on the Windows version. I tried downloading the latest version from http://www.apple.com/safari/download/, but Windows won't let me open the file, saying it is a security risk.

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• Where are all my Java VMs installed in ubuntu?

  - by michael

  In my Ubuntu 8.04 'Other' menu, it has 'OpenJDK Java 6 Runtime', 'Sun Java 5.0 Runtime' , 'Sun Java 6 Runtime'. Can you please tell me where are these actually installed? I can only fine 1, the OpenJDK : $ which java /usr/bin/java $ java -version java version "1.6.0_0" OpenJDK Runtime Environment (build 1.6.0_0-b11) OpenJDK Server VM (build 1.6.0_0-b11, mixed mode) How can I find the others? Thank you.

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• Compile Qt Project To Run On A Linux System

  - by ForgiveMeI'mAN00b

  I have a Qt project. It uses the cross platform libraries SDL, OpenGL and FLTK. I want to be able to compile the project so that it can run on a Linux computer. I'm looking at a bunch of articles I have seen so far two ways to do this. Use a cross compiler, which seems to me a rather complicated thing to setup and compile with, or, the other options, is to compile the project simply on a Linux computer, simply the Linux version of Qt creator/SDK. My question is, If I have a Qt project that uses only cross platform libraries, then is creating a Windows version easy as compiling it in Qt/Windows, and creating the Linux version as easy as doing it in Qt/Linux? PS. Please don't ask/complain about why I didn't just try to see if it works myself, I don't have any Linux OS's installed on my computer right now, and I don't want to risk going into the trouble of installing a whole new OS just to have it not work in the end.

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• Building Boost with LSB C++ Compiler

  - by Alex Farber

  I want to build my program with LSB C++ Compiler from the Linux Standard Base http://www.linuxfoundation.org/collaborate/workgroups/lsb. Program depends on the Boost library, built with gcc 4.4 version. Compilation fails. Is it possible to build the Boost library with LSB C++ Compiler? Alternatively, is it possible to build the Boost library with some old gcc version, what version is recommended? My final goal is to get my executable and third-party Boost libraries running on most Linux distributions. Generally, what can be done to get better binary compatibility for Linux distributions, developing C++ closed-source application depending on the Boost library?

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• Binary tree to BST

  - by dsiap

  How wil you convert Binary Tree to Binary Search Tree with O(n) extra space ?

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• not null usage in mysql

  - by pradeep

  Hi, I use syntax like name varchar(20) NOT NULL in mysql..i have a big confusion over here. typically does it mean that this field is mandatory? but when i store a space in this field it accepts it.is it correct. its like while insert i say '".$_POST['name']."'. even if the name does not have any value query is executed. can any1 just clarify me on this ? is NULL and blank space same ?

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• upgrade or compile phonon from sources

  - by hyperboreean

  I am trying to compile KDE from sources and I get this error when trying to make kdelibs: Could NOT find Phonon: Found version "4.3.1", but required is at least "4.3.80" I am running Kubuntu karmic ... and I have the latest phonon dev files. How can I upgrade it to the version that kdelibs needs?

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• What is the effect on record size of reordering columns in PostgreSQL?

  - by Summer

  Since Postgres can only add columns at the end of tables, I end up re-ordering by adding new columns at the end of the table, setting them equal to existing columns, and then dropping the original columns. So, what does PostgreSQL do with the memory that's freed by dropped columns? Does it automatically re-use the memory, so a single record consumes the same amount of space as it did before? But that would require a re-write of the whole table, so to avoid that, does it just keep a bunch of blank space around in each record? Thanks! ~S

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• insert into several inheritance tables with OUTPUT - sql servr 2005

  - by csetzkorn

  Hi, I have a bunch of items – for simplicity reasons – a flat table with unique names seeded via bulk insert: create table #items ( ItemName NVARCHAR(255) ) The database has this structure: create table Statements ( Id INT IDENTITY NOT NULL, Version INT not null, FurtherDetails varchar(max) null, ProposalDateTime DATETIME null, UpdateDateTime DATETIME null, ProposerFk INT null, UpdaterFk INT null, primary key (Id) ) create table Item ( StatementFk INT not null, ItemName NVARCHAR(255) null, primary key (StatementFk) ) Here Item is a child of Statement (inheritance). I would like to insert items in #items using a set based approach (avoiding triggers and loops). Can this be achieved with OUTPUT in my scenario. A ‘loop based’ approach is just too slow where I use something like this: insert into Statements (Version, FurtherDetails, ProposalDateTime, UpdateDateTime, ProposerFk, UpdaterFk) VALUES (1, null, getdate(), getdate(), @user_id, @user_id) etc. This is a start for the OUTPUT based approach – but I am not sure whether this would work in my case as ItemName is only inserted into Item: insert into Statements ( Version, FurtherDetails, ProposalDateTime, UpdateDateTime, ProposerFk, UpdaterFk ) output inserted.Id ... ??? Thanks. Best wishes, Christian

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• ServiceBus WorkerRole DiagnosticMonitor Error

  - by user1596485

  I have a WebRole and 2 ServiceBus WorkerRoles running, During the OnStart of the roles I get the following Exception: [System.ArgumentOutOfRangeException] invalid syntax for container log4net Parameter name: initialConfiguration Running Azure: ConfigurationManager version=1.7.0.3 ServiceBus version=1.7.0.1 Storage version=1.7.0.0 This occurs while running locally in the dev Azure environment and in the Cloud. All roles have the following Configurtion settings: <LocalStorage name="Log4Net" cleanOnRoleRecycle="true" sizeInMB="2048" /> All Roles have the following code in the OnStart: try { // Configure Disgnostics to poll Log file to Blob Storage var diagnosticsConfig = DiagnosticMonitor.GetDefaultInitialConfiguration(); diagnosticsConfig.Directories.ScheduledTransferPeriod = TimeSpan.FromMinutes(5); diagnosticsConfig.Directories.DataSources.Add( new DirectoryConfiguration { Path = RoleEnvironment.GetLocalResource("Log4Net").RootPath, DirectoryQuotaInMB = 512, Container = "wad-WebRolelog4net" }); DiagnosticMonitor.Start("Microsoft.WindowsAzure.Plugins.Diagnostics.ConnectionString", diagnosticsConfig); } catch { OnStop(); return false; }

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• Image size in DB?

  - by user1104916

  I made an application that store Item pictures (jpeg) in SQL Server DB, the use shot pictures with his camera (file size ~ 2 M), in my aaplication I check if picture.Width 800 or picture.Height 600, I resize the picture to 800x600. -- if I export picture from DB, the file size is about 100k, if I open the same picture in photoshop, the image size shows 1.37M. 01-- I want to know the space that takes this picture in my DB. The reason I'm resizing the picture before storing it in my DB, is that I imagine it take a huge space in my DB. 02-- How to resize a picture to keep it' s aspect ratio?

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• Memory leaks getting sub-images from video (cvGetSubRect)

  - by dnul

  Hi, i'm trying to do video windowing that is: show all frames from a video and also some sub-image from each frame. This sub-image can change size and be taken from a different position of the original frame. So , the code i've written does basically this: cvQueryFrame to get a new image from the video Create a new IplImage (img) with sub-image dimensions ( window.height,window.width) Create a new Cvmat (mat) with sub-image dimensions ( window.height,window.width) CvGetSubRect(originalImage,mat,window) seizes the sub-image transform Mat (cvMat) to img (IplImage) using cvGetImage my problem is that for each frame i create new IplImage and cvMat which take a lot of memory and when i try to free the allocated memory I get a segmentation fault or in the case of the CvMat the allocated space does not get free (valgrind keeps telling me its definetly lost space). the following code does it: int main(void){ CvCapture* capture; CvRect window; CvMat * tmp; //window size window.x=0;window.y=0;window.height=100;window.width=100; IplImage * src=NULL,*bk=NULL,* sub=NULL; capture=cvCreateFileCapture( "somevideo.wmv"); while((src=cvQueryFrame(capture))!=NULL){ cvShowImage("common",src); //get sub-image sub=cvCreateImage(cvSize(window.height,window.width),8,3); tmp =cvCreateMat(window.height, window.width,CV_8UC1); cvGetSubRect(src, tmp , window); sub=cvGetImage(tmp, sub); cvShowImage("Window",sub); //free space if(bk!=NULL) cvReleaseImage(&bk); bk=sub; cvReleaseMat(&tmp); cvWaitKey(20); //window dimensions changes window.width++; window.height++; } } cvReleaseMat(&tmp); does not seem to have any effect on the total amount of lost memory, valgrind reports the same amount of "definetly lost" memory if i comment or uncomment this line. cvReleaseImage(&bk); produces a segmentation fault. notice i'm trying to free the previous sub-frame which i'm backing up in the bk variable. If i comment this line the program runs smoothly but with lots of memory leaks I really need to get rid of memory leaks, can anyone explain me how to correct this or even better how to correctly perform image windowing? Thank you

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• Autocomplete for generic types in Eclipse

  - by AvrDragon

  "Refer to objects by their interfaces" is a good practise, as mentioned in Effective Java. So for example i prefer List<String> al = new ArrayList<String>(); over ArrayList<String> al = new ArrayList<String>(); in my code. One annoying thing is that if i type ArrayList<String> al = new and then hit Ctrl+Space in Eclipse i get ArrayList<String>() as propostal. But if i type List al = new and then hit Ctrl+Space i will get only propostal to define anonymous inner class, but not propostals such as new ArrayList<String>(), what is 99% the case, or for example new Vector<String>(). Is there any way to get the subclasses as propostals for generic types?

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• Linux binary built for 2.0 kernel wouldn't execute on 2.6.x kernel.

  - by lorin

  I was installing a binary Linux application on Ubuntu 9.10 x86_64. The app shipped with an old version of gzip (1.2.4), that was compiled for a much older kernel: $ file gzip gzip: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.0.0, stripped I wasn't able to execute this program. If I tried, this happened: $ ./gzip -bash: ./gzip: No such file or directory ldd was similarly unhappy with this binary: $ ldd gzip not a dynamic executable This isn't a showstopper for me, since my installation has a working version of gzip I can use. But I'm curious: What's the most likely source of this problem? A corrupted file? Or a binary incompatibility due to being built for a much older {kernel,libc,...}?

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• Convert a complicated string into an array in php

  - by Patrick Beardmore

  I have a php variable that comes from a form that needs tidying up. I hope you can help. The variable contains a list of items (possibly two or three word items with a space in between words). I want to convert it to a comma separated list with no superfluous white space. I want the divisions to fall only at commas, semi-colons or new-lines. Blank cannot be an item. Here's a comprehensive example (with a deliberately messy input): Variable In: "dog, cat ,car,tea pot,, ,,, ;;(++NEW LINE++)fly, cake" Variable Out "dog,cat,car,tea pot,fly,cake" Can anyone help?

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• Ensuring Updated CSS/JavaScript on Client Side

  - by Alex

  I'm trying to ensure that visitors of my ASP.NET MVC website always have the most-current CSS and Javascript (and not some older cached version). I tried to realize this by generating a seed value when the application domain starts, and automatically append it to the CSS and Javascript URLs (so now instead of /Content/All.js the link is /Content/All.js?549238 etc.). Unfortunately I just found out by debugging via Firebug that this causes now a full download request every time (the new "seeded" response is no longer cached at all, but I only wanted the first check to download the 'updated' version, but then cache again/only check if there is a difference). How can I achieve my goal, is there a better way of doing this? I need the client to always request the newest version, but then cache if no change happened. Edit: This appears to be related to the fact that my page is served over SSL. I asked a follow up question here regarding enabling clientside caching with SSL.

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• Releasing WinForm Program Updates

  - by Tinkerer_CardTracker

  Hello, Another quick question. I'd like to release some updates for a WinForm program, but to date I have simply released an all-new compile. People have to un-install the old version and install the new version. I bet there's a way to get around this, but I don't know what it's called. As you may guess, searches for "updates" "new version" "install" and the other obvious things I've tried have generated an impressive number of irrelevant results. _< I suspect this process has a particular name, which should point me in the right direction, but if it doesn't please link to a tutorial or something. Thanks again, this site is great! :)

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• How to Get SharePoint PowerShell to use .NET 2

  - by EoRaptor013

  I'm having a couple of problems with PowerShell. First, the PS configuration installed by SharePoint 2010 keeps popping this message: The local farm is not accessible. Cmdlets with FeatureDependencyId are not registered. I've googled that, and given everybody and their second cousin Sharepoint_Shell_Access to the config DB, with no luck. So, I wanted to try some of the PS commands. In this case, however, I'm getting a different error: Microsoft SharePoint is not supported with version 4.0.30319.17929 of the Microsoft .Net Runtime. I get that SP can't use .NET 4.0 or 4.5, but I can't find any suggestions on how to get PS to use the "right" version of .NET. I've found some references for something called PowerGUI, and changing the psgui.exe.config, but I don't have that. Does anybody have any suggestions on how to solve the .NET version problem? Thanks.

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• Design ideas for a versioned db schema with related tables also versioned

  - by vfilby

  Here is the drill, I want to version a database. I have done this before using multiple rows where the table primary key becomes a combination of the row id and either a datestamp or a version #. Now I want to version a table that depends on many other small tables. Versioning each table will be a giant PITA, so I am looking for good options to verion a schema where the data to be versioned spreads over multiple tables. All related tables are properly keyed with foreign key relationships. The database is currently on Sql Server 2005.

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• Having 'mvn deploy' in Hudson's build goals and the standard approach of releasing

  - by user68759

  I set up Hudson for my project with the build goals mvn clean deploy site:site, run a build every midnight and whenever there are new changes. One thing I have been wondering is whether I should include deploy in the build goals because it could happen that if I had just released version 1.0.0 of my project (I've changed the pom to be version 1.0.0 and committed it) but not yet increased the version number to 1.0.1-SNAPSHOT for several days, I could end up with multiple different 1.0.0 builds being deployed at different times. But I've seen people are using deploy in their Hudson's build goals - I wonder how they deal with this issue. What's the correct way of doing a release with Maven actually? Thanks for any pointers!

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• Maven. What to do with "homeless" jars?

  - by Jake

  I have some proprietary.jar that I need to include in my project, but I don't wish to install it to the local repository. What I did initially was to put the jar into version control in my project's lib/ folder, and then specify the Maven dependency as: <!-- LOCAL DEPENDENCY --> <dependency> <groupId>topsecret</groupId> <artifactId>proprietary</artifactId> <version>0.0.1</version> <scope>system</scope> <systemPath>${basedir}/lib/java/proprietary.jar</systemPath> </dependency> However, this becomes a big problem when my project becomes someone else's dependency. Maven will not be able to validate this POM because the path is not absolute. What is the best way to overcome this problem?

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• Rails test across multiple environments

  - by DSimon

  Is there some way to change Rails environments mid-way through a test? Or, alternately, what would be the right way to set up a test suite that can start up Rails in one environment, run the first half of my test in it, then restart Rails in another environment to finish the test? The two environments have separate databases. Some necessary context: I'm writing a Rails plugin that allows multiple installations of a Rails app to communicate with each other with user assistance, so that a user without Internet access can still use the app. They'll run a local version of an app, and upload their work to the online app by saving a file to a thumbdrive and taking it to an Internet cafe. The plugin adds two special environments to Rails: "offline-production" and "offline-test". I want to write functional tests that involve both the "test" and "offline-test" environments, to represent the main online version of the app and the local offline version of the app respectively.

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