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• Java portable media detection

  - by quosoo

  I would like to write a piece of java code that synchronizes files between local hard drive and a usb storage. I would like to have a different synchronization configuration depending on which usb storage is plugged in and I would like to have apropriate configuration to be selected automatically rather than chosen by the user. I've just read the JSR-80 and jUSB documentation as well as a bunch of articles and SO posts, but all of those are very old and it seems that since that time (around 2005) all the efforts have been abandoned especially for Windows platform, while the OS-independence is quite important to me (at least Windows and Linux need to be supported). Do I really need to use any of the USB APIs to recognize external drives that are connected to the system? I need something that is more unique than file path, drive letter or drive label... And if yes which one would you recommend (unless I missed something jUnit is actually the only for which Windows support exists).

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• How to determine user's language setting from LocalSystem

  - by Louis

  I have a Windows system service that needs to communicate string information to an application running under the user's account. The strings will appear to the user so I want to make sure that the strings that the service passes to the application are in the same language as the user account. How can I tell what display language the currently logged in user has from the service code? If I can determine this, I can just load the correct resource file and be done. I don't have to support multiple user's logged in so the service will only communicate with one application instance at a time.

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• How can I find out which version of emacs introduced a function?

  - by Chris R

  I want to write a .emacs that uses as much of the mainline emacs functionality as possible, falling back gracefully when run under previous versions. I've found through trial and error some functions that didn't exist, for example, in emacs 22 but now do in emacs 23 on the rare occasion that I've ended up running my dotfiles under emacs 22. However, I'd like to take a more proactive approach to this, and have subsets of my dotfiles that only take effect when version = <some-threshold> (for example). The function I'm focusing on right now is scroll-bar-mode but I'd like a general solution. I have not seen a consistent source for this info; I've checked the gnu.org online docs, the function code itself, and so far nothing. How can I determine this, without keeping every version of emacs I want to support kicking around?

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• Expression Encoder SDK - WMA Pro Codec Issues with Windows Server 2003

  - by PortageMonkey

  I am using the Expression Encoder SDK to encode .avi and Flash files to a .wmv format suitable for Silverlight. By default, EE encodes files with audio using the the WMA PRO codec. If you are running Windows Server 2003, this is a problem as it doesn't support the WMA PRO codec and produces and error message similar to the following. Error Message: The Audio Profile settings do not match a valid system profile. Error Source: Microsoft.Expression.Encoder Error Target Site: System.String GetProfileString() I am looking for a way to change the default audio codec to something suitable for WS 2003. I am aware that although not supported natively, there is a highly invasive way to install Windows Media Player 11 and it's codecs on WS 2003 but this involves registry tinkering and other hacks not suitable for our production environments so that solution is out.

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• MongoDB C# Driver Unable to Find by Object ID?

  - by Hery

  Using MongoDB C# driver (http://github.com/samus/mongodb-csharp), seems that I'm unable to get the data by ObjectId. Below the command that I'm using: var spec = new Document { { "_id", id } }; var doc = mc.FindOne(spec); I also tried this: var spec = new Document { { "_id", "ObjectId(\"" + id + "\")" } }; var doc = mc.FindOne(spec); Both return nothing. Meanwhile, if I query it from the mongo console, it returns the expected result. My question is, does that driver actually support the lookup by ObjectId? Thanks..

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• HTML-5 : video tag. Video not playing

  - by Microkernel

  Hi guys, I was trying use/test video tag of HTML-5. Here is the code <!DOCTYPE HTML> <html> <body> <video src="./Pilot.avi" controls="controls"> your browser does not support the video tag </video> </body> </html> Pilot.avi is stored in the same same directory as this HTML page. The problem is, I am seeing the controls being displayed but can't play the video. I tried with, 1) Mozilla Firefox 3.6.13 2) Google Chrome 8.0.552.224 What could be the problem? Regards, Microkernel

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• MS Word: Mailmerge hyperlinks with query get url string with a mergefield.

  - by oterrada

  Hi, I'm trying to send an email merging one document (docx) with a contacts database (via OleDB). Using MSWord2007, it seems easy (it works for easy things: name, address, ...) but I can't find how fill an query-get url string with a merge field inside an hyperlink. An hyperlink like: Click here where here is an hyperlink to http://domain.com/[email protected] where [email protected] is the address of the contact, a merge field. I've tried the special/merge fields: {HYPERLINK "http://domain.com/test.php?contact={MERGEFIELD contactEmail}" \o "Here"} but it doesn't work, sometimes it merge only the first record and then send all the mails with the same address, I got this alternating the view with ALT+F9. This support doc doesn't work for me because I don't have the complete URL in my database for each contact, and I can't change the design of the table or add a view (it's from the CRM), I don't like to do it exporting the table and adding the field. Any idea? Thanks in advance,

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• Direct3D 11 effect files deprecated?

  - by Toji

  I've been playing around with Direct3D 11 a little bit lately and have been frustrated by the lack of documentation on the basics of the API (such as simple geometry rendering). One of the points of confusion brought on by the sparse documentation is the (apparent) move away from the use of effects for shaders. In D3D11 all of the effect (.fx) support has been removed from the D3DX libraries and buried away in a hard to find (sparsely documented, of course) shared source library. None of the included examples use it, preferring instead to compile HLSL files directly. All of this says to me that Microsoft is trying to get people to stop using the effect file format. Is that true? Is there any documentation of any kind that states that? I'm fine doing it either way, but for years now they've been promoting the .fx format so it seems odd that they would suddenly decide to drop it.

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• Windows XP Home Edition SP3 cant recognise PCMIA SD Card

  - by Pozo

  System Specifications: Laptop : Dell Inspiron 6000 OS: Windows Home Edition SP3 SD Adapter: Hagiwara Smart Media Adapter I inserted the card into the slot, windows xp recognises the device, lists the pcmia controller on the device manager list, an entry appears under the IDE ATA/ATAPI category on the device manager as well. However, the device does not show under my computer and the driver does not get assigned a letter number. I checked the system logs from the device manager and there were no logged errors. Checking the Hagiwara support website, the manufacturer indicates that the adapter driver is the same as the windows xp pcmia controller. Checking Dell's website, no specific drivers were listed for that either. General Search on the web indicates that multiple people face similar problems with their SD cards, yet none actually spell out the route issue that causes this. Please let me know if you have any suggestions for further debugging. Thanks in advance

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• How do you diagnose a 500 error on Heroku when there is no error message in the logs?

  - by lala

  I have a Rails app on Heroku that is serving 500 errors at random intervals. Web pages will display "Internal server error" in plain text, instead of the usual "We're sorry. Something went wrong." page. When I refresh the page, it works fine. The logs don't show me an error message, just » 14:20:34.107 2013-10-11 12:20:33.763690+00:00 heroku router - - at=info method=HEAD path=/ host=www.mydomain.com fwd="184.73.237.85/ec2-184-73-237-85.compute-1.amazonaws.com" dyno=web.1 connect=1ms service=63ms status=200 bytes=0 » 14:21:03.957 2013-10-11 12:21:03.561867+00:00 heroku router - - at=info method=GET path=/ host=www.mydomain.com fwd="50.112.95.211/ec2-50-112-95-211.us-west-2.compute.amazonaws.com" dyno=web.1 connect=0ms service=1ms status=500 bytes=21 Support has told me to look at request queuing in New Relic, but New Relic only shows a big red mark saying the server is down (even though the site works fine when refreshed). With no error messages, I'm at a loss for how to diagnose this issue.

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• Integration of Photoshop and MySQL

  - by NewToProgrammingWorld

  I’m working to integrate Photoshop (CS4, local) with MySQL (Linux, remote), such that: a) image file information, data and meta data can be exported from PS into MySQL where same can be manipulated both manually and calculated, and then b) the MySQL fields can be referenced in Photoshop scripting for further automated image file manipulation, and c) the MySQL fields can be referenced for other purposes such as dynamic propagation of files and associated file data to a website, for example. I’ve spent many hours running searches for these concepts on StackOverflow, Google, and Adobe Support. I’m coming up empty, which leads me to believe that it’s not natively possible, and that I’ll need some middle language like PHP. Does anyone know if it’s possible for Photoshop and MySQL to bi-directionally share data? If so, how? If that’s not possible, what solution(s) might you recommend, in terms of specific tools/technologies that I can research further. Thank you.

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• Is it bad practice to extend the MongoEngine User document?

  - by Soviut

  I'm integrating MongoDB using MongoEngine. It provides auth and session support that a standard pymongo setup would lack. In regular django auth, it's considered bad practice to extend the User model since there's no guarantee it will be used correctly everywhere. Is this the case with mongoengine.django.auth? If it is considered bad practice, what is the best way to attach a separate user profile? Django has mechanisms for specifying an AUTH_PROFILE_MODULE. Is this supported in MongoEngine as well, or should I be manually doing the lookup?

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• Packaging PHPUnit tests as a PHAR archive?

  - by therefromhere

  Is it possible to package PHPUnit tests as a PHAR archive, and run them using phpunit? I've created a .phar with the follow script: $cPhar = new Phar('mytests-archive.phar', 0); $cPhar->addFile('mytest.php'); $stub = <<<ENDSTUB #! /usr/bin/php <?php Phar::mapPhar('mytest-archive.phar'); require 'phar://mytests-archive.phar/mytest.php'; __HALT_COMPILER(); ENDSTUB; $cPhar->setStub($stub); $cPhar->compressFiles(Phar::GZ); $cPhar->stopBuffering(); But when I then try running the resulting archive as follows: phpunit mytests-archive.phar I get the error message: #! /usr/bin/php PHPUnit 3.3.17 by Sebastian Bergmann. Class MyTestClass could not be found in /path/to/mytests-archive.phar Does PHPUnit not support PHAR files, or am I missing a step in my build script? (This is my first attempt at using PHAR)

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• Red5 RTMP Streaming

  - by SyntaxError

  I'm very new to RTMP streaming and am seeking help. Just enough to get me started. I have been Googling for about 5-7 hours now and still cannot determine my answer! The documentation of Red5 is limited and cannot find any support at all! Even similar questions to mine are unanswered on stackoverflow :( My questions are: Why can't I simply place an .mp3 inside red5's server root and play it? To serve a simple MP3 file over RTMP. Do I need to write a Java application? If so, any pointers? To make matters worse, I have little to none Java experience. Please help ST.

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• jQuery - improve/reduce my ipod-style dropdown code! - challenge?

  - by aSeptik

  Hi all guys! by keeping inspiration from this http://www.filamentgroup.com/examples/menus/ipod.php i have maked my own from scratch cause i have needed this smarty dropdown solution for a client, but more lightweight & efficient! so with a good cup of coffe in my hand i have maked this DEMO: http://jsbin.com/ufuga SOURCE: http://jsbin.com/ufuga/edit since this is a proof o concept, whould be nice to know, before port this into a plugin, what you think about it! is good, bad or can be improved or reduced in size!? i'm glad to share this code with you and whould be nice if you want give me any feedback! ;-) PS: work perfectly in IE6+, Firefox, Chrome, Opera and of course support the jQuery Theme Roller and have zero configuration steps! thank you guys!

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• Diagonal Wedge Shaped CSS - Edge to Edge Centered in Browser

  - by Varazi

  I have been trying to make this shape in CSS. Ideally it will span the entire length of the browser window and probably extend outside the field of view to support larger screens and also be centered so that the angle does not change. Anyone have any solutions? Also I think I might run into a problem of the angle aliasing harshly. I might need to resort to using an image. Would like to use CSS though. ** Image Spelling Error. (Indefinitely not Inevitably)

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• document directory problem?

  - by senthilmuthu

  When i write Data(53MB ) to Document directory ,the data is not written when i check directly through application support path.i coded like this, - (BOOL)writeApplicationData:(NSData *)data toFile:(NSString *)fileName { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; if (!documentsDirectory) { NSLog(@"Documents directory not found!"); return NO; } NSString *appFile = [documentsDirectory stringByAppendingPathComponent:fileName]; return ([data writeToFile:appFile atomically:YES]); } it works fine, but when i read the data using follwing code, the data is null, anyhelp pls? - (NSData *)applicationDataFromFile:(NSString *)fileName { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *appFile = [documentsDirectory stringByAppendingPathComponent:fileName]; NSData *myData = [[[NSData alloc] initWithContentsOfFile:appFile] autorelease]; return myData; }

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• How to deploy and register a VSPackage supporting multiple versions of Visual Studio (2005, 2008, 20

  - by Steve Cadwallader

  I have an open source VSPackage that I would like to release with support for Visual Studio 2005, Visual Studio 2008, and Visual Studio 2010. I'm trying to figure out how to create the installer and how to perform the package registration with each edition of Visual Studio. The deployment research I've done indicates my best bet for an installer is a VSIX inside an MSI. The registration research I've done is a lot less clear. VSPackage registration seems to differ for every edition (VS2005 uses regpkg, VS2008 uses pkgdef, VS2010 uses VSIX). Can anyone share their experiences and/or point me towards any information about the best approach for targeting multiple versions of Visual Studio? I'm looking for the easiest implementation and preferably keeping it in a single installer if reasonably feasible. Any help would be greatly appreciated!

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• ActiveRecord fundamentally incompatible with composite keys?

  - by stimms

  I have been attempting to use subsonic for a project on which I'm working. All was going quite well until I encountered a link table with a composite primary key. That is a key made up of the primary keys of the two tables it joins. Subsonic failed to recognize both keys which was problematic. I was going to adjust subsonic to support compound keys but I stopped and though "Maybe there is a reason for this". Normally active record relies on a single primary key field for every record, even in link tables. But is this necessary? Should I just give up on active record for this project or continue with my modifications?

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• Migrating from SQL Server to firebird: pro and cons

  - by user193655

  I am considering the migration for 4 reasons: 1) SQLSERVER installation is a nightmare, expecially for 1-user software (Even if typically I have 3-20 users, sometimes I sell my software to single users: it is incredible to have troubles installing the DB, while installing the applicatino means copying an exe...). (note my max installation is 100 users, but there is no an upper limit). Software installs in 10 seconds, SQLServer in 1 hour. Firebird installation is much easier. 2) SQLSERVER runs on windows server only 3) My customers have all the express edition 4) i am not using any advanced feature, I am now starting using filestream, but the main reason for this is that Express edition has 4/10GB db size limit So these are all Pros of moving to Firebird. Which are the cons? I can also plan to support both platforms, but this will backfire I fear.

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• Asynchronous Processing in JBoss 6 ("Comet")

  - by chris_l

  edit: Retagged as tomcat, since this is really a question about the Tomcat embedded inside JBoss 6, rather than JBoss itself I have an extremely simple servlet, which works on Glassfish v3. It uses Servlet 3.0 Asynchronous Processing. Here's a simplified version (which doesn't do much): @WebServlet(asyncSupported=true) public class SimpleServlet extends HttpServlet { @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { final AsyncContext ac = request.startAsync(); ac.setTimeout(3000); } } On JBoss 6.0.0 (Milestone 2), I get the following Exception: java.lang.IllegalStateException: The servlet or filters that are being used by this request do not support async operation at org.apache.catalina.connector.Request.startAsync(Request.java:3096) at org.apache.catalina.connector.Request.startAsync(Request.java:3090) at org.apache.catalina.connector.RequestFacade.startAsync(RequestFacade.java:990) at playcomet.SimpleServlet.doGet(SimpleServlet.java:18) at javax.servlet.http.HttpServlet.service(HttpServlet.java:734) ... Do I have to do anything special to enable Asynchronous Processing in JBoss 6? Or do I need an additional deployment descriptor? ...

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• Should I distinguish OpenIDs based on protocol prefix or not? http vs https

  - by Joannes Vermorel

  I have implemented a straightforward OpenID support for my ASP.NET app with DotNetOpenAuth. Yet I recently realized that the implementation was treating http://johndoe.example.com/ as a distinct user compared to https://johndoe.example.com. This lead to quite a few confused users. I am unsure what to do at this point. Is this a bug or a feature? Indeed, I can consider this behavior as a feature: if the user specifies the HTTPS, the user might not want the system to accept HTTP auth in the first place. On the other hand: if the user specifies HTTPS out of sheer cluelessness (the casual web visitor is clueless concerning the purpose of the "S" part), then rejecting it's authentication attempt is confusing. What is considered as the best practice?

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• How to build a setup package for a desktop application using SQL CE 3.5 and Entity Framework?

  - by Emad

  I am having a WPF desktop application that uses SQL CE (compact edition 3.5 ) and using the Entity Framework as a Datalayer. As It turned out in (http://support.microsoft.com/default.aspx?scid=kb;en-us;958478&sd=rss&spid=2855 ) and (http://social.msdn.microsoft.com/Forums/en-US/sqlce/thread/b6bac277-cf66-4c74-a0b3-e48abedbd161/ ) There Is some problem with the Entity Framework and SQL CE and I had to get the hotfix (basically a new build of the SQL CE called 3.5.1) My problem now is how to build a setup package in order to make it work in case some users already had the SQL CE 3.5 installed on their machines? I have included the DLLs directly in the application but when the sql ce is installed, its DLLs are in the GAC and have precedence over the local ones and the application crashes. I need the build a setup that would work "even if" the user already had the old buggy version.

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• MySQL: Transactions across multiple threads

  - by Zombies

  Preliminary: I have an application which maintains a thread pool of about 100 threads. Each thread can last about 1-30 seconds before a new task replaces it. When a thread end, that thread almost always will result in inserting 1-3 records into a table, this table is used by all of the threads. Right now, no transactional support exists, but I am trying to add that now. So... Goal I want to implement a transaction for this. The rules for whether or not this transaction commits or rollback reside in the main thread. Basically there is a simple function that will return a boolean. Can I implement a transaction across multiple connections? If not, can multiple threads share the same connection? (Note: there are a LOT of inserts going on here, and that is a requirement).

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• Best calculator software to help programmers

  - by RHaguiuda

  As a embedded systems programmer I always need to make lots of base conversions (dec to hex, hex to bin and so on...), and I must admit: Windows 7 calculator is a good calc, but too limited in my point of view. I work a lot with communications protocols and it`s common to need some base conversion in this field of knowledge. I`m looking for a calculator software (not a hardware one), to help with base conversions, but it must also support scientific calc. Can anyone help on this? Since this subject is intended to help programmers, I did not ask this in SuperUser.com. Thanks.

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