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• How to negotiate red5 connection parameters for streaming with JAVA

  - by baba

  Hi, I have been creating a thin browser client (on java) that sends an RTMP stream to a specified red5 instance. I also use RTMP Researcher to monitor the traffic and events that occur between the client and the server. Here is what I note: There is obviously a map with options that is being exchanged between the red5 instance and the client. You can see it here: (direct link : http://img716.imageshack.us/img716/661/newbitmapimagelb.png ) What I am wondering about is is there a programmatic way to obtain this map in the client side and maybe change some of the parameters or just examine them Edit: I am connecting like this connect ( host, port, app, callback ); . I assume I am sending some default parameters along, because the other connect methods have also an optionsMap as an argument. I was wondering what are the possible values that could be put in such an optionsMap and where to obtain a list of them?

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• inline divs with hidden overflow

  - by Jim

  I want to create 3 divs side by side when only one of them is visible. -------------- -------------- -------------- | visible | | invisible | | invisible | | | | | | | -------------- -------------- -------------- In order to do this I have tried to create a wrapping div with a 100px width, and hidden overflow. What am I doing wrong? <div style="width:50px;height:349px; overflow:hidden"> <div style="display: inline;">first div</div> <div style="display: inline;">second div</div> <div style="display: inline;">third div</div> </div>

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• Possible to use a .dll on Linux

  - by random_hero

  Question: Is it possible to compile a program on linux using a .dll file? Where this is going: This .dll will be used to write a php extension to some proprietary software from a third party. Background and Research: I have been given a library called proprietary.lib. I was curious, as I have never seen the .lib extension before, so I typed: file proprietary.lib The output was: proprietary.lib: current ar archive I did some research and found that ar is more-or-less tar (and in fact, I guess tar has since replaced ar in most *nix environments). Upon inspecting the ar manpage, I saw the t option, which displays a table listing of the contents of that archive. Cool. So I type: ar t proprietary.lib And get: proprietary.dll proprietary.dll ... (snip X lines) ...

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• NSSortDescriptor for NSFetchRequest sorting unexpectedly

  - by E-Madd

  My entity has a property (sortOrder) that is of the type Decimal(NSDecimalNumber) but when I execute a fetch request using that property as a key, I get back results in a seemingly random order. If I output the value of the property I get really strange values until I get it's intValue. Example: The first run produces this result. The first value is the raw value of the property. The second is the intValue, the actual value of the property when I created the object - or at least I thought. 85438160 10 74691424 20 Second run... 85333744 10 85339168 20 Third... 85263696 20 85269568 10 What the hell?

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• What web server should I use if I want to run Java code behind it?

  - by Boaz

  At the moment, I have lot's of Java which does all kind of nifty stuff and I'm happy with it. The code is command line driven which have been great so far, but I recently decided I want to make the functionality available through web-services. Since my is complex and I'm happy with the way it's written , I don't want go through the pain of porting it to other languages. So I set out on a google journey to find out what web servers exist (on a Linux machine, though it's interesting to hear the answer without that limitation). From what I could find, it seems that there are two viable options: Apache Tomcat and Sun Java Server. What are the reason to choose one on top of the other? what are the strength of each and what are the weaknesses? Or, perhaps, there is a third one which is much easier, flexible and less cumbersome. Anyone?

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• How to activate nVidia cards programmatically on new MacBookPros for CUDA programming?

  - by Carsten Kuckuk

  The new MacBookPros come with two graphic adapters, the Intel HD Graphics, and the NVIDIA GeForce GT 330M. OS X switches back and forth between them, depending on the workload, detection of an external monitor, or activation of Rosetta. I want to get my feet wet with CUDA programming, and unfortunately the CUDA SDK doesn't seem to take care of this back-and-forth switching. When Intel is active, no CUDA device gets detected, and when the NVidia card is active, it gets detected. So my current work-around is to use the little tool gfxCardStatus (http://codykrieger.com/gfxCardStatus/) to force the card on or off, just as I need it, but that's not satisfactory. Does anybody here know what the Apple-blessed, Apple-recommended way is to (1) detect the presence of a CUDA card, (2) to activate this card when present?

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• How can I find out if an data- attribute is set to an empty value?

  - by Stephan Wagner

  Is there a way to find out if an data- attribute is set to an empty value or if it is not set at all? See this fiddle example (Check the console when clicking on the elements): http://jsfiddle.net/StephanWagner/yy8qvwfp/ <div onclick="console.log($(this).attr('data-test'))">undefined</div> <div data-test="" onclick="console.log($(this).attr('data-test'))">empty</div> <!-- this one will also return an empty value --> <div data-test onclick="console.log($(this).attr('data-test'))">null</div> <div data-test="value" onclick="console.log($(this).attr('data-test'))">value</div> Im having the issue with the third example. I need to know if the attribute actually is set to an empty value or if it is not set at all. Is that actually possible? EDIT: The reason I'm asking is that I'm updating content with the attributes value, so data-test="" should update the content to an empty value, but data-test should do nothing at all

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• C++: set of C-strings

  - by Nicholas

  I want to create one so that I could check whether a certain word is in the set using set::find However, C-strings are pointers, so the set would compare them by the pointer values by default. To function correctly, it would have to dereference them and compare the strings. I could just pass the constructor a pointer to the strcmp() function as a comparator, but this is not exactly how I want it to work. The word I might want to check could be part of a longer string, and I don't want to create a new string due to performance concerns. If there weren't for the set, I would use strncmp(a1, a2, 3) to check the first 3 letters. In fact, 3 is probably the longest it could go, so I'm fine with having the third argument constant. Is there a way to construct a set that would compare its elements by calling strncmp()? Code samples would be greatly appreciated.

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• MFC resource.h command/message IDs

  - by ak

  Hi I'm working on an MFC application, that got pretty messy over years and over different teams of developers. The resource.h file, which contains all command/message mappings grew pretty big over time, and has lots of problems (like duplicate IDs). I am not proficient with MFC, so the question might sound pretty stupid... MSDN docs mention that Command IDs and Message IDs should not be less than WM_USER and WM_APP correspondingly. I saw that most of the command IDs in resource.h generated by Visual Studio begin around 100. Shouldn't this cause some interfering with MFC/Windows commands and messages, that overlap with the application defined IDs? For example, I have a command ID : #define ID_MY_ID 101 and there is a windows command that has the same ID. When MC send this command to the APP, it's handled like an application defined ID_MY_ID, and the app is taking unnecessary actions. Is it a possible scenario? Also, is there some third party tool that helps to profile the project resources?

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• Efficient way to create/unpack large bitfields in C?

  - by drhorrible

  I have one microcontroller sampling from a lot of ADC's, and sending the measurements over a radio at a very low bitrate, and bandwidth is becoming an issue. Right now, each ADC only give us 10 bits of data, and its being stored in a 16-bit integer. Is there an easy way to pack them in a deterministic way so that the first measurement is at bit 0, second at bit 10, third at bit 20, etc? To make matters worse, the microcontroller is little endian, and I have no control over the endianness of the computer on the other side.

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• Consolidate the same image used multiple times in a PDF.

  - by Jack

  I am generating PDF documents using DevExpress XtraReports. I am using the same image over and over (in rows of status lights). The PDF generated seems to duplicate the image definition for each image included. I would prefer if it included the image once and referenced it wherever it needed another copy - this would drastically reduce the size of my PDF docs. Is there any way to achieve this using DevExpress or even post processed via a third party application. Any help is appreciated.

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• How to control Time zone formatting in System.Xml.Serialization or during application execution?

  - by Beal

  I'm developing a C# .Net Application that is executing on a system located in the Central Time Zone. The application gets information from a third party using an API they provide. I have used the WSDL to produce the code that my application access the API with...their reporting API allows you to define a start date and end date for the report. These are C# DateTime fields and XSD:dateTime. Now when I set the start date and end dates and allow the API to create the SOAP messages the dates don't always include a Time Zone unless I set the date fields using the ToLocalTime method; however, the method will create the DateTime fields in the Central Time Zone (CST) but I need to have it create these fields in the Pacific Time Zone (PST). If I set my machine time to PST all is good...but of course that causes other time issues. What methods can I use to control the formatting of the DateTime? Alternatively, is there a application setting that can be set in C# that allows timezone control?

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• is it possible to do partial postback on web?

  - by carter-boater

  Hi all, I read some paragraphs in a book saying that it is not possible to do a partial postback for web, even AJAX is employed. Ajax will postback everything and update only ajaxfied controls. However, on pages I made using ajax, I used Fiddler to monitor the transportation. I found when the page initial load, it loaded everything include pictures .... However, when I click a button and do a ajax postback. I can only see the some data were loaded.... Looks like it doesn't need to reload the whole page again. I don't know if what I see is correct? Or the book I read is correct? Thank you guys.

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• OpenDACS .Net Framework

  - by Goober

  Scenario As some of you may have heard, OpenDACS is an open source data-access control system for enforcing data usage permissions. DACS comes integrated with the Reuters platform but you can use OpenDACS for extending third-party software. I'm using IE6, I can't embed these links properly. http://thomsonreuters.com/products_services/financial/financial_products/real-time/data_access_control_system https://customers.reuters.com/developer/Kits/OpenDACS/opendacs.aspx Question Has anyone used OpenDACS at all? I'm quite interested in it but I have no idea where to start. Ideally some examples would be fantastic, or a startup guide. Thoughts I use C# heavily and am looking to extend a C# application with DACS. I understand that there is currently no C# API, however I've heard that the SFC-COM Edition can used with the .Net/COM interoperability layer Help greatly appreciated. Cheers.

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• ios - compile error: redefinition of label openURL

  - by GeekedOut

  I have a method like this: - (BOOL)webView:(UIWebView *)aWebView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType { if ([request.URL.scheme isEqualToString:@"aaa"]) { openURL:[NSURL URLWithString:@"www.firstwebsite.com"]; } if ([request.URL.scheme isEqualToString:@"abc"]) { openURL:[NSURL URLWithString:@"http://www.someurl.com"]; } if ([request.URL.scheme isEqualToString:@"xyz"]) { openURL:[NSURL URLWithString:@"http://www.anothersite.com"]; } return YES; } and on the second and third uses of openURL I get a compile error: redefinition of label openURL Any idea why that happens and how to resolve it? Thanks!

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• Why is there a seemingly identical copy of the JDK 1.5 core runtime in org.osgi.foundation-1.0.0.jar?

  - by Jonathan Neufeld

  I am maintaining a web application that depends on OSGi and Maven pulls-in a jar called org.osgi-foundation-1.0.0.jar that seems to contain the same classes as part of the JDK core runtime such as: java.util.*; java.io.*; etc. and so on. This seems very strange and I have to ask why this is necessary. More-over, my web-application fails to deploy on JBoss 6 because these are "illegal package names" for a third-party library. What is the purpose of org.osgi-foundation-1.0.0.jar ? is it necessary?

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• What tool can I use to test my web app in different resolutions?

  - by strakastroukas

  Back in the past, i found a third party webpage that was able to capture and save images of my website in different resolutions and browsers. Of course i have no more that bookmark... So is there any webpage or application where i can see how my webpage looks like in different resolution? And here are the resolutions i would like to check for... 1. 1024x768 24.56% 2. 1280x800 22.06% 3. 1280x1024 13.42% 4. 1366x768 7.10% 5. 1440x900 6.68%

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• Reading Windows ACLs from Java

  - by Matt Sheppard

  From within a Java program, I want to be able to list out the Windows users and groups who have permission to read a given file. Obviously Java has no built-in ability to read the Windows ACL information out, so I'm looking for other solutions. Are there any third party libraries available which can provide direct access to the ACL information for a Windows file? Failing that, maybe running cacls and capturing and then processing the output would be a reasonable temporary solution - Is the output format of cacls thoroughly documented anywhere, and is it likely to change between versions of Windows?

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• Is testability alone justification for dependency injection?

  - by fearofawhackplanet

  The advantages of DI, as far as I am aware, are: Reduced Dependencies More Reusable Code More Testable Code More Readable Code Say I have a repository, OrderRepository, which acts as a repository for an Order object generated through a Linq to Sql dbml. I can't make my orders repository generic as it performs mapping between the Linq Order entity and my own Order POCO domain class. Since the OrderRepository by necessity is dependent on a specific Linq to Sql DataContext, parameter passing of the DataContext can't really be said to make the code reuseable or reduce dependencies in any meaningful way. It also makes the code harder to read, as to instantiate the repository I now need to write new OrdersRepository(new MyLinqDataContext()) which additionally is contrary to the main purpose of the repository, that being to abstract/hide the existence of the DataContext from consuming code. So in general I think this would be a pretty horrible design, but it would give the benefit of facilitating unit testing. Is this enough justification? Or is there a third way? I'd be very interested in hearing opinions.

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• Best Practice For Referencing an External Module In a Java Project

  - by Greg Harman

  I have a Java project that expects external modules to be registered with it. These modules: Implement a particular interface in the main project Are packaged into a uni-jar (along with any dependencies) Contain some human-readable meta-information (like the module name). My main project needs to be able to load at runtime (e.g. using its own classloader) any of these external modules. My question is: what's the best way of registering these modules with the main project (I'd prefer to keep this vanilla Java, and not use any third-party frameworks/libraries for this isolated issue)? My current solution is to keep a single .properties file in the main project with key=name, value=classhuman-readable-name (or coordinate two .properties files in order to avoid the delimiter parsing). At runtime, the main project loads in the .properties file and uses any entries it finds to drive the classloader. This feels hokey to me. Is there a better way to this?

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• Mercurial clone operation works, but I don't have write access

  - by normalocity

  Somewhere I did something silly. I was deploying my Rails app via cloning the Mercurial repo down onto my Ubuntu server. It worked the first time, and then...well, I made a small change on my dev machine, pushed the changes to the repo, and then deleted the copy on the Ubuntu server and re-cloned from the repo. The clone operation (the second, and third, and 'n' times) works without error, but I don't have write access to the files that were cloned. When I try to startup my mongrel - it can't create the /tmp folder, and because of no write access, fails to start the Rails app.

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• Monitoring outgoing internet traffic

  - by Frane

  Is there a way to monitoring internet traffic programatically? I would like to log the pages users are visiting on the Internet. Can this be achieved with .NET code, is there a 3rd party .NET component that could be used to retrieved data. Information about Internet traffic must be stored to a database so I cannot use a plugin or something for IE. We are also looking to include this code into our existing product so we cannot use a 3rd party product that cannot be redistributed. It would be cool if this thing could monitor traffic for all browsers but monitoring IE traffic might also be sufficient.

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• Anyone knows of a good addressbook implementation?

  - by Tsahi Levent-Levi

  I am looking to add an address book to one of my programs. For that purpose, I want to have something that is flexible and customizable to the point of allowing me to hook up additional metadata to contacts in it from third parties. I don't mind paying for a solution as long as I get something that is usable for me. My requirements: Optimized to run on embedded devices Preferably in source code form Ability to add my own fields to contacts over those the address book provides out of the box Ability to plugin "stuff" to it to enhance it without changing its base code too much Has a C or C++ interface

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• Real-time aggregation of files from multiple machines to one

  - by dmitry-kay

  I need a tool which gets a list of machine names and file wildcards. Then it connects to all these machines (SSH) and begins to monitor changes (appendings to the end) in each file matched by wildcards. New lines in each such file are saved to the local machine to the file with the same name. (This is a task of real-time log files collecting.) I could use ssh + tail -f, of course, but it is not very robust: if a monitoring process dies and then restarts, some data from remote files may be lost (because tail -f does not save the position at which it is finished before). I may write this tool manually, but before - I'd like to know if such tool already exists or not.

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• How to find out who's causing an access violation error?

  - by Fernando

  I'm getting reports that my app is causing a GPF on some Vista machines. The error message is something like this: access violation at 0x75784062 ( tried to write to 0x00000006) In order to fix this, I first need to know exactly who is causing this GPF: my main exe, some third party component, one of my own activex components, a dll, etc... How can I find this out? What tools can pinpoint the exact module that caused this mess? Any help would be greatly appreciated. PS My app is coded in VB6 and my activex controls are written in Delphi 2007.

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