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• android mediarecorder exception

  - by Arutha

  I try to use the MediaRecorder class to record a video but I get an exception : failed to get Camera parameters. Prepare failed. Here's my code : camera = Camera.open(); recorder = new MediaRecorder(); recorder.setCamera(camera); recorder.setVideoSource(VideoSource.CAMERA); recorder.setPreviewDisplay(m_holder.getSurface()); recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); recorder.setVideoEncoder(MediaRecorder.VideoEncoder.DEFAULT); recorder.setMaxDuration(10000); recorder.setOutputFile(file.getPath()); recorder.prepare(); Any idea ?

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• Is there any reason to throw a DivideByZeroException?

  - by Atomiton

  Are there any cases when it's a good idea to throw errors that can be avoided? I'm thinking specifically of the DivideByZeroException and NullReferenceException For example: double numerator = 10; double denominator = getDenominatorFromUser(); if( denominator == 0 ){ throw new DivideByZeroException("You can't divide by Zero!"); } Are there any reasons for throwing an error like this? NOTE: I'm not talking about catching these errors, but specifically in knowing if there are ever good reasons for throwing them.

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• Clojure / HBase: How to Import HBaseTestingUtility in v0.94.6.1

  - by David Williams

  In Clojure, if I want to start a test cluster using the hbase testing utility, I have to annotate my dependencies with: [org.apache.hbase/hbase "0.92.2" :classifier "tests" :scope "test"] First of all, I have no idea what this means. According to leiningens sample project.clj ;; Dependencies are listed as [group-id/name version]; in addition ;; to keywords supported by Pomegranate, you can use :native-prefix ;; to specify a prefix. This prefix is used to extract natives in ;; jars that don't adhere to the default "<os>/<arch>/" layout that ;; Leiningen expects. Question 1: What does that mean? Question 2: If I upgrade the version: [org.apache.hbase/hbase "0.94.6.1" :classifier "tests" :scope "test"] Then I receive a ClassNotFoundException Exception in thread "main" java.lang.ClassNotFoundException: org.apache.hadoop.hbase.HBaseConfiguration Whats going on here and how do I fix it?

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• Entity Relationship Multiple 1:1's

  - by Evan

  I have an application where I have a generic object (table) called Hull. Each hull in the table is unique. I have another object that has three hulls, but they are specifically the Port_Hull, Center_Hull and Starboard_Hull. Rather than create a One to Many relationship, I was trying to create a one to one relationship for each one, but this results in numerous errors unless I make the relationship from Hull to Vessel one to many (which it is not). Any idea how I go about this, or should I abandon the concept and make the vessel to hull relationship one to many and deal with lists that always have three entries? p.s. Using uniqueidentifiers as many users can be adding records while disconnected. Hull Table HullID uniqueidentifier (primary key) plus bunch of hull data fields Vessel Table VesselID uniqueidentifier (primary key) MainHullID uniqueidentifier (tried as key and non-key) PortHullID uniqueidentifier StarboardHullID uniqueidentifier plus bunch of Vessel data fields

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• Authentication for SaaS

  - by josh

  What would be recommended as an authentication solution for a Software-as-a-service product? Specifically, my product would have clients that would typically have low information technology skills, potentially not even having an IT department within their organization. I would still like to have my application authenticate against their internal directory service (eDirectory, Active Directory, etc.). I don't want them, however, to have to open/forward ports (for instance, opening up port 636 so I can do LDAPS binds directly to their directory service). One idea I had was to have an application installed on a server within their organization's network that would backconnect to my service. This would be a persistant socket. When I need to authenticate a user, I send the credentials via the socket (encrypted) - the application then performs a bind/whatever to authenticate against the directory service and replies with OK/FAIL. What would you suggest? My goal here is to essentially have the client install an application within their network, with very little configuration or intervention.

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• Getting Revisions from CVS repository

  - by Rob

  Hi, I am trying to get somehow all the revision log that were made to a particular file, but I seem to stupid to do that :( To checkout a module I do the following CVSROOT="/home/projects/stuff/" cvs co myworkingdir within myworkingdir I have a testfile called paper.tex and from this I wanna try to get the revisions but I tried the following but nothing works ... CVSROOT="/home/projects/stuff/" cvs log paper.tex cvs log: cannot open CVS/Entries for reading: No such file or directory cvs log: nothing known about paper.tex -bash-3.2$ CVSROOT="/home/projects/stuff/" cvs log myworkingdir/paper.tex cvs [log aborted]: no such directory `myworkingdir' Anyone an idea how I could get the log of the revisions of the paper.tex file in the myworkingdir module? Many thanks for your help! Claus

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• building mono from svn - android target

  - by Jeremy Bell

  There were patches made to mono on trunk svn to support android. My understanding is that essentially instead of Koush's system which builds mono using the android NDK build system directly, these patches add support for the android NDK using the regular mono configure.sh process. I'd like to play around with this patch, but not being an expert in the mono build system, I have no idea how to tell it to target the android NDK, or even where to look. I've been able to build mono from SVN using the default target (linux) on Ubuntu, but no documentation on how to target android was given with the patches. Since anyone not submitting or reviewing a patch is generally ignored on the mono mailing list, I figured I'd post the question here.

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• Excel 2007 Visual Basic Editor: eats spaces, throws cursor around

  - by Vincent

  I can't resolve this issue, I found a similar question here but: setting the workbook to Manual calculation (alt-m-x-m or alt-t-oformulas) didn't work Setting editor options to disable: Auto syntax check & Background compile didn't work anybody have any idea how to fix this very annoying behaviour, I'm used to quickly pop up VBA (alt-f11), f7 to get into code and write some quick procedures there... and it's hard to get out of that habit, I don't want to write any office extension to just add a single quote to every cell in the range For Each rg In Selection rg = chr(39) & rg.value Next F5, done...

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• xsl with javascript

  - by Vignesh

  I've a file with xml data. And I want to generate a report out of it. I tried to integrate xsl with java script, but can I get a handle of individual data elements in xsl and pass it on to a java script function. Lets say <value>true</value> is in the xml and I want to pass it on to a javascript function while doing something like this in xsl. <xsl:for-each select="/valgroup"> <xsl:value-of select="value"/> </xsl:for-each> The alternative is to parse the xml in java script and get the values, I've got little idea of how to integrate it with xsl. Are there any java script libraries. I've seen my libraries that run on servers(AJAXSLT), but I need something that runs locally. I'm a new to xslt, so consider this a worthy question.

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• How to make a 3D UI for an application ?

  - by wacky_coder

  I'm building an application and I'd like its User Interface to be 3D, most probably a cylinder. The user would see the cylinder[Horizontally laid] and the cylinder's curved surface would have the buttons and any other controls that need to be placed. The cylinder needs to rotate and later, I'd like to add some other effects to the cylinder too. Someone told me that such a UI can be modelled using Maya or Blender and exported to openGL and then I could use C/C++ (with Qt) to carry out the actions. How can this be done?? Is there any other way to build the UI and do all the other things that I need ?? I really need some help because I have the UI in mind, but no idea on how to implement it. Thanks

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• Android ndk build mysteriously failing under cygwin with "Error 126"

  - by Jan Hudec

  I have a JNI application built by ndk-build (using Android NDK r5b and cygwin make 3.81). The build usually works, by occasionally fails with: ... Compile++ thumb : components <= Component.cpp make: *** [/c/.hudson/jobs/Nightly/workspace/application/obj/local/armeabi/objs/components/Component.o] Error 126 make: Leaving directory `/c/.hudson/jobs/Nightly/workspace/application/obj/local/armeabi/objs/components' There is no other error. Make than exits with status 2. It happens in different file each time (the name above is anonymized). It seems to happen more often with parallel builds, but sometimes happens with non-parallel builds too. Does anybody have an idea what it might be or at least how to debug it?

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• Importing large datasets on iPhone using CoreData

  - by Matthes

  Hi there, I'm facing very annoying problem. My iPhone app is loading it's data from a network server. Data are sent as plist and when parsed, it neeeds to be stored to SQLite db using CoreData. Issue is that in some cases those datasets are too big (5000+ records) and import takes way too long. More on that, when iPhone tries to suspend the screen, Watchdog kills the app because it's still processing the import and does not respond up to 5 seconds, so import is never finished. I used all recommended techniques according to article "Efficiently Importing Data" http://developer.apple.com/mac/library/DOCUMENTATION/Cocoa/Conceptual/CoreData/Articles/cdImporting.html and other docs concerning this, but it's still awfully slow. Solution I'm looking for is to let app suspend, but let import run in behind (better one) or to prevent attempts to suspend the app at all. Or any better idea is welcomed too. Any tips on how to overcome these issues are highly appreciated! Thanks

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• Encrypt php code

  - by riad

  Hi all, I create a software using php. Now need to sale this software .So, I need to encrypt my code that nobody can view my source code. can anybody help me to do: 1. Encrypt my PHP code but software functioning will remaining same. 2. Also I need to bind the software for a particular authorized pc & it will not run any other pc except my authentication. How can I do that? encrypt using LAN MAC address? or any other idea? pls help!

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• Computer science advances in the past 5 years

  - by Doug Stanhope

  I don't have a computer science background and only have a rudimentary knowledge of what CS is all about. However, I wonder, what are the most significant CS advances of the last five years? To give you an idea of how clueless I am, I couldn't name one of these advances. But, please don't spare me all the gory details. I'm not looking for an education in CS or a story about the history of CS. As far as this question is concerned only the past five years matter! :-)

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• Why am I unable to Debug my ASP.NET website in Visual Studio?

  - by willem

  I used to be able to attach to my w3wp process and Debug my web application, but this is not working anymore. I have no idea what changed to break this. My breakpoints simply have the "breakpoint will currently not be hit. The source code is different from the original version." What I have tried: Did a solution Clean. Did a solution Rebuild. Deleted the bin folder Restarted Visual Studio Restarted IIS Restarted my Computer Added a simple Response.Write to ensure that the latest DLL is being used. It is. Made sure that Debug ASP.NET is checked in my project properties. It is. Made sure that all my projects are compiled in my build configuration. They are. But none of these help. I attach to w3wp, but my breakpoints never get hit. Any ideas?

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• Click GEvent.addListener with jquery

  - by Jason

  Created a google map with GMap2 and put pinpoints on there that open up a balloon with the address when the pinpoint is clicked. I would like users to be able to click text on the page itself and use jquery to open up the corresponding balloon. However I can't figure out the ID to use to call a jquery click event. Basically I've got a store listing down the left side and when user clicks store name I want it to open up the corresponding balloon. GEvent.addListener(marker_500, "click", function () { map.openInfoWindowHtml(point, myHtml); } Any idea what element tied to this click event is? Tried $("#marker_500").click(); And that doesn't work. Also tried alerting $(this).attr('id'); inside the click function and that is undefined. thanks jason

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• AVAudioPlayer currentTime problem

  - by StrAbZ

  Hi, I'm trying to use the audioplayer with a slider in order to seek into a track (nothing complicated). But I have a weird behavior... for some value of currentTime (between 0 and trackDuration), the player stop playing the track, and goes into "audioPlayerDidFinishPlaying:successfully:" with successfully to NO. And it did not go into "audioPlayerDecodeErrorDidOccur:error:" It's like it can't read the time i'm giving to it. For exemple the duration of the track is: 295.784424 seconds i set the currentTime to 55.0s (ie: 54.963878 or 54.963900 or 54.987755, etc... when printed as %f). The "crashes" always happen when the currentTime is 54.987755... and I really don't understand why... So if you have any idea... ^^

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• Ruby &&= edge case

  - by Alan O'Donnell

  Bit of an edge case, but any idea why &&= would behave this way? I'm using 1.9.2. obj = Object.new obj.instance_eval {@bar &&= @bar} # => nil, expected obj.instance_variables # => [], so obj has no @bar instance variable obj.instance_eval {@bar = @bar && @bar} # ostensibly the same as @bar &&= @bar obj.instance_variables # => [:@bar] # why would this version initialize @bar? For comparison, ||= initializes the instance variable to nil, as I'd expect: obj = Object.new obj.instance_eval {@foo ||= @foo} obj.instance_variables # => [:@foo], where @foo is set to nil Thanks!

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• basic boost date_time input format question

  - by Chris H

  I've got a pointer to a string, (char *) as input. The date/time looks like this: Sat, 10 Apr 2010 19:30:00 I'm only interested in the date, not the time. I created an "input_facet" with the format I want: boost::date_time::date_input_facet inFmt("%a %d %b %Y"); but I'm not sure what to do with it. Ultimately I'd like to create a date object from the string. I'm pretty sure I'm on the right track with that input facet and format, but I have no idea how to use it. Thanks.

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• taskbar-free window manager

  - by 7vies

  I'm looking for a window manager that is not based on the "standard" taskbar (which I find a poor idea and I'm completely tired of). I'm aware of tiling window managers and improvements in last versions of operating systems, but I can't find what I need. I suppose that any window takes the whole screen (or can be tiled), and I imagine switching between windows like that: on a hotkey or mouse hot zone the screen becomes a task switcher where tasks are organized in a somewhat convenient manner. Well, it's a bit like a taskbar with autohide, but I think there could be some more convenient ideas than simply stacking icons and descriptions... It is also supposed to be lightweight enough, for example to run on a netbook. Any suggestions?

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• Howto extract text from a file where date -time is the index

  - by Soham

  I have got around 800 files of maximum 55KB-100KB each where the data is in this format Date/Time/Float1/Float2/Float3/Float4/Integer Date is in DD/MM/YYYY format and Time is in the format of HH:MM Here the date ranges from say 1st May to 1June and each day, the Time varies from 09:00 to 15:30. I want to run a program so that, for each file, it extracts the data pertaining to a particular given date and writes to a file. I will not face any problem in writing into directory operations. I am trying to get around, to form a to do a search and extract operation. I dont know, how to do it, would like to have some idea. Thanks Soham

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• problem with sql job and datetime parameter

  - by geoff swartz

  Another developer created a stored procedure that is set up to run as a sql job each month. It takes one parameter of datetime. When I try to invoke it in the job or in just a query window I get an error "Incorrect syntax near ')'" The call to execute it is... exec CreateHeardOfUsRecord getdate() When I give it a hard coded date like exec CreateHeardOfUsRecord '4/1/2010' it works fine. Any idea why I can't use getdate() in this context? Thanks.

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• Excluding files from web logs

  - by Ray

  Looking through my web logs, I see a lot of entries that don't interest me. Some of them are commonly used images, css files, and scripts, which I can easily exclude by un-checking the 'log visits' check box in IIS for the folder properties. I would also like to exclude log entries for certain common requests which are not in their own folders. Mostly, 'favicon.ico'. 'scriptresource.axd', and 'webresource.axd'. These (especially scriptresource.axd) make up almost a third of a typical log file on my site. So, the question is, how do I tell IIS not to log these requests? And is there any reason that this is a bad idea?

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• Vim: Goot AutoCompletion Plugin for Python and PHP

  - by Rafid K. Abdullah

  I use Vim with ctags for development. I found ctags to be very useful in going to definitions, but I don't know a good plugin to make use of ctags for clever auto completion. It seems that the default Vim auto completion is not good. When I write set omnifunc? in Vim, I get this: omnifunction=pythoncomplete#Complete I do know about OmniComplete for C++, but I don't know any good plugin for Python and PHP. Does anybody have an idea?

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• Is there an "extended" UIHint attribute to apply CSS styles for DisplayFor - EditorFor templates?

  - by AJ

  Intro: After reading Brad Wilson Metadata series and searching unsuccesfully on google, I was wondering: Question: Has any OS project / code been created that allows you to tag CSS styles in the Meta information, for example in my (buddy) Model, I want to be able to decorate a property with multiple CSS styles (a single style you can fake with UIHint, I want to set many possible styles - and be able to "cross-utilise") eg. public class MyModel { [DisplayCssHint("h5")] [DisplayCssHint("color:#777;")] [EditorCssHint(".myCoolTextClass")] [EditorCssHint(".myOtherCoolTextClass")] public string Title{ get;set; } [DisplayCssHint(".normaltext")] [EditorCssHint(".myCoolTextClass")] [EditorCssHint(".myOtherCoolTextClass")] public string Message {get;set;} } Thoughts: I know that this does not seem like a logical place to put styling information, however as it is metadata and is discriptive... besides it would be nice to do this while prototyping - (especially being able to apply class styles and extending it further - to generate .Less files would really be cool! more to the point I would hate to write it, if its already been done ;). Any links/pointers/idea's would be appreciated. Thanks,

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