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• IOException opening RFCOMM on openSUSE

  - by Chief A-G

  I have a permissions problem on openSUSE with Bluetooth /dev/rfcomm0. I've written a small test application which opens /dev/rfcomm0 and sends a request message and retrieves a response message. At first my problem was a permission denied error on /dev/rfcomm0 until I added the user account to the dialup users group. Now I get a System.IO.IOException Interrupted system call error whenever I run the app. I can sudo my application and it runs fine. I'm not sure how and which permissions to set to get this work work under my normal user account.

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• Help me to Create a Color ProgressBar in delphi?

  - by NiliDelphi

  hi friends. i want to create a color progress bar in delphi language within use by XPMan component (it is : with win xp style). what do i do? what code using?

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• Define a default .properties file in JAVA

  - by bnabilos

  Hello, I have 2 .properties files in my java project and I want to define one of them as default file to be used when the language of the operating system is different from the 2 languages already defined. Can you tell me please what should I add to my code to make that possible? Thank you

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• Best way to password protect a folder?

  - by Mahmoud

  I am trying to create a similar way to Cpanel password protect directory, where a pop up comes out asking the user for a username and a password, but Cpanel way is amazing but my client doesn't know anything on how to do that, so i wanted to create a pop up msgbox informing the visitor to enter a user name and a password, and i totaly confused on how to create it, and which programming language support similar to CPanel

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• What is the one programming skill you have always wanted to master but haven't had time?

  - by KevDog

  For me, I've always wanted to finish the O'Reilly "Mastering Regular Expressions" book. When I need a Regexp, I manage to get the one I need eventually, but it takes more effort than it should. Learning a specific technology or language always seems to bubble up ahead of this.

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• Developers portfolios

  - by Alex

  I'm wondering if you have one, or u know any developer/programmer online portofolio. I know many web developers have one (and in many cases very well designed), but not any C++ developer (for example). On the net there are only some good blogs about some programming language, but in many cases these are extremely poor from a design point of view and i'd say very "nerdy".

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• Crackers - How do they do it, how do we fight back?

  - by zedo

  As someone who is interested in learning more about the security side of technology, I ask you all the following questions: How is it that crackers crack software? What techniques are used to do so? I would imagine that the cracking methods depend upon the language the software is written in, right? Aside from using something like cloud-based security for SaaS ((software as a service) which isn't always an option), what choices does one have to prevent their software from being compromised?

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• What Read-eval-print-loops (REPL's) are available for C++ ?

  - by Justin Ethier

  REPL's are very useful for live debugging and experimentation. Most dynamic languages such as Ruby, Python, etc come with one built-in, however it is more difficult to build one for a statically-typed language such as C++. Despite the technical challenges, are there any REPL's available for C++?

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• Manipulate data in the DB query or in the code

  - by DrDro

  How do you decide on which side you perform your data manipulation when you can either do it in the code or in the query ? When you need to display a date in a specific format for example. Do you retrieve the desired format directly in the sql query or you retrieve the date then format it through the code ? What helps you to decide : performance, best practice, preference in SQL vs the code language, complexity of the task... ?

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• Bpm audio detection Library

  - by user58815

  I'm looking for a library that simplify tempo/bpm audio detection. Something similar to this http://adionsoft.net/bpm/ , but to use on *NIX machines. Any language, but preference goes to php, perl, python.

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• Are there machine (and human) readable specification languages for algorithm collections and meta-li

  - by Jabavu Adams

  Is there high-level language out there for describing algorithms, that's geared towards specification, rather than implementation? The idea would be to have a machine-readable archive of standard algorithms, with machine-readable annotations on trade-offs, and variants. I'm thinking of something like CycL / OpenCyC, but for algorithms and programming patterns.

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• What can you do in C without "std" includes? Are they part of "C," or just libraries?

  - by Chris Cooper

  I apologize if this is a subjective or repeated question. It's sort of awkward to search for, so I wasn't sure what terms to include. What I'd like to know is what the basic foundation tools/functions are in C when you don't include standard libraries like stdio and stdlib. What could I do if there's no printf(), fopen(), etc? Also, are those libraries technically part of the "C" language, or are they just very useful and effectively essential libraries?

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• Is ctrl-s save universal for save or are there different combinations for different languages

  - by aepheus

  I imagine that there are different combination, just looking for an affirmation. Or, are we developers really that english-centric? If I were in japan, using a word processor on some computer, would ctrl-s save? Are there keyboards where ctrl-s doesn't even exist (non-english keyboards)? Most of what I've seen usually has latin + [insert language here] characters, usually overridden on the normal qwerty keyboard.

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• Unmanaged C++ in .net

  - by _Avishay_

  Hi, can someone please tell why , Great Microsoft that created C# language and now we're in C# 4.0 , dont have an important feature that C++\CLI has !!,which is to directly compile and link with un-managed c++ ??

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• How do I use the conditional operator?

  - by Jeremy Rudd

  I've always wondered how to write the "A ? B : C" syntax in a C++ compatible language. I think it works something like: (Pseudo code) If A > B C = A Else C = B Will any veteran C++ programmer please help me out?

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• What libraries provide cross-platform 3D and P2P support?

  - by uckelman

  I'm trying to find a constellation of libraries which, taken together, meet the following requirements: Smooth scaling, rotation, panning (in two dimensions). I'll have a large bitmap (or SVG, in some cases), maybe up to 10000x10000 pixels, which serves as map, with some middling number of small bitmaps (or, again, possibly SVG) that can be dragged around over it. I need to be able to zoom, rotate, and pan this scene; however, the view will always be normal to (i.e., looking head-on at) the large bitmap, so I'm not really using the depth dimension. Peer-to-peer. I'd like for multiple users to be able to connect in order to share one of the scenes mentioned above, preferably peer-to-peer, without much configuration by the user. I'm intending to have a server running for cases where users are unable to connect P2P; I'd like to have the failover happen automatically, or possibly have some way of promoting clients who are capable to be servers themselves. Synchronization. Once a user has started dragging one of the small bitmaps (a piece), no other user should be able to drag that piece until the drag stops. I haven't thought of exactly how to do this---there might be a simple solution, or this kind of synchronization might be something that a library provides. Cross(ish)-platform. I need to be able to run on Linux, Windows, and Mac OS. It would be nice to also be able to run on tablets. Having mostly the same code for all platforms is a plus, but not absolutely necessary. (L)GPL compatible. I'm planning to release under the LGPL or GPL, preferably the latter, so I need libraries which have compatible licenses. I'm not set on any particular language, I'd like to use the library or libraries which make the work easiest, though my preference is to work in at most two languages for the project. (The Model could potentially be in one language and the View in another, so they could talk to each other via some protocol I define, if that would get me a better selection of libraries to use.) Can anyone offer suggestions for what to use?

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• Bay Speaker Panel Installation

  - by JordanD

  I purchased a bay speaker panel that has a molex connector and a sound connector. Do I need to run the sound connector through my tower and somehow out the back into the IO panel? Or is there supposed to be a place on my motherboard for it to connect to? This is a replacement for normal desktop speakers for me to save desk space. Edit: Is there an adapter for the sound cable to the mother board? If so; what is it called? Thanks

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• What's the best online source to learn Perl?

  - by Sreenath

  I am new to any scripting language. But, still I worked on scripting a bit like tailoring other scripts to work for my purpose. For me, what is the best online resource to learn Perl?

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• plug-in architecture based c/c++ application

  - by SepiDev

  I need to know how to start writing an application based on plug-in architecture. I mean how to write a base code an let others develop the application by adding the plug-ins they write. I know that there is some problems in doing such in c++. most people use another language such as python to add plug-ins to their c++ application.

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• Uploading to YouTube makes all browser tabs and devices disconnect

  - by fabsenet

  Whenever I upload a video to YouTube all other browser tabs behave like there is no connection at all. It even affects my phone and other computers on the network therefor I think it has to do with my router. When the upload is done everything works normally again. I never observed this behavior with any other upload. My router is a Fritz!Box 7390 and my uploading PC is connected through a 1000mb/s switch (wired) to the router. Uploading through another browser does not change anything. I understand that other sites become slow as the network resources are limited, but stopping altogether feels wrong. speed.io measures for my internet connection: 40.894 Kbit/s down, 2.685 Kbit/s up, 29 ms ping, 2.048 con/m connects

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• Nested function in C

  - by Sachin Chourasiya

  Can we have a nested function in C? What is the use of nested functions? If they exist in C does there implementation differes from compiler to compiler. Are nested functions allowed in any other language? If yes then what is there significance?

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• how to use ffmpeg

  - by Moayyad Yaghi

  hello .. im trying to extract frames from a video .. and i picked ffmpeg ( tell me if you know something better ) for this task i downloaded it's source .. and i don't know how to use it ?? how do i compile it ?? what is the recommended language for it ?? i know python and C++ please note that i use windows vista 64x .

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• iPhone SDK in C++?

  - by seed

  This might be a really silly question, but is the iPhone SDK available in C++? Since I heard C++ is an officially supported language, is their any SDK avaliable for it?

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• BSoD when creating threads

  - by Behrooz

  I am trying to create +5 threads synchronously so there shouldn't be any concurrency error. Code: System.Threading.Thread t = new System.Threading.Thread(proc); t.Start();//==t.BlueScreen(); t.Join(); Is darkness a feature ? I am doing something wrong? OS:Microsoft windows vista(unfortunately) x64 Language:C# 3.0|4.0 .Net version:3.5|4

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• I get a "Deprecated" notice on my page with few of the session functions

  - by OM The Eternity

  I am getting the below message on my sites page there are more than 20 messages like this... pls guide me to rectify the issue... I am using the PHP 5.3.0 Deprecated: Function eregi() is deprecated in C:\wamp\www\bannerbuzz\includes\classes\language.php on line 87

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