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• How to see the memory usage of NIO buffers?

  - by festerwim

  Is there a way to see the memory usage of NIO buffers? There is the non-heap memory section in JConsole, but I do not think this includes the NIO buffers? Operating system is Linux (Ubuntu or CentOS) if that would matter. regards, Wim

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• How can the audio data being sent to the speakers be captured from an application?

  - by witch

  Is there an API that is suitable for doing this? A possible application of this is for writing a visualiser, and to play with real time signal processing. EDIT: The operating system in question is Windows. On Linux, a roundabout way to accomplish this is with Jack, but I'm hoping for a way to read the data in the audio buffer without having to couple apps to Jack.

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• Reading the registry of a (windows computer) from a web app (silverlight? php? etc)

  - by Tommy

  Is there a way to read the windows registry from a web based application with no user interaction? im open to language suggestions, any language will work i just need to know how to pull a certain string from one particular registry key. EDIT: incase this wasnt clear, im operating inside of a web-browser, obviously.. its a web application, weather it be silverlight, java, php, or something else.

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• Mercurial local branching and pushing to shared repository

  - by Steve Horn

  I created a branch on my local Mercurial repository. I want to push to the shared repository so my work can be backed up, but I don't want other project members to see the branch. What's the standard operating procedure in this case? I'd like to avoid having the repository get full of developer branches that I don't need to see.

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• how is this dropdown working ? on selection it displays another record.

  - by ida

  this website here: http://www.offpricecars.com/inventory2.html?F=C when you select a dropdown the record based on your selection is displayed. ive tried copying it to localhost and it wont work. ive also tryed reading its headers and cant seem to figure out how javascript is making the records display on selection. i do understand that its extension isnt really html and might be another but based on how its operating as a html file i cant seem to find anywhere on how its sending the string to show the records. thanks

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• Most valuable course in the CS degree.

  - by danielrutledge

  I was a math major and I took OOP and Algorithms & Data Structures from the CS department while in school, but didn't continue to any upper-division courses. What were the most valuable courses to your programming career (Operating systems, Compiler Design, Computer architecture, etc) in your CS degree? Alternatively, if you're like me and don't have one, are there any courses you wish you had taken? What would be the best way to fill in the gaps in my knowledge outside of school?

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• Distributing programs as 'setup' packages in Linux

  - by asha

  I have made a firewall project in c language on Linux operating system, now I want to know how to make setup of this project so that I can run this application on other system by installing it. Please give an example, thanks in advance.

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• Free Offline Map Provider (and not OpenStreetMaps)

  - by Radian

  I am making for my Graduation Project a low price Navigation device, using Android as Operating System I tried the Native Google's Map-view Control, but it works only Online .. and of-course I want to store maps for offline navigation So.. I want a map provider (like OpenStreetMaps) that : I can use offline Contain Searchable Street names (not only a rendered image) for commercial use Free or at low price The problem with OpenStreetMaps that it doesn't provide detailed map for most cities in Egypt.

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• Invoke Blue Screen of Death using Managed Code

  - by Matthew Ruston

  Just curious here: is it possible to invoke a Windows Blue Screen of Death using .net managed code under Windows XP/Vista? And if it is possible, what could the example code be? Just for the record, this is not for any malicious purpose, I am just wondering what kind of code it would take to actually kill the operating system as specified.

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• Java - How to set focus the already running application ?

  - by Brad

  I am using a ServerSocket port to run one instance only of my Java Swing application, so if a user tries to open another instance of the program, i show him a warning that "Another instance is already open". This works fine, but instead of showing this message i want to set focus on the running application itself, like some programs does (MSN Messenger), even if it was minimized. Is there a solution for this for various operating systems ?

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• How bad is it to use a virtual file system with VMWare? [closed]

  - by user30997

  IT is running a series of VMs that we'd like to see optimized further: if the VMs' are Windows XP, storing their NTFS images out to the virtual disk (ext3) provided by Linux/VMWare, how much of a hit are we taking - as opposed to having a partition of the host hard drive formatted NTFS to eliminate the translation layer and the extra level of operating system IO preparation?

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• regarding setup (object file)

  - by asha

  i have made a firewall project in c language on linux operating system ,now i want to know how to make set of this project so that i can run this application on other system by installing it ?

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• remote_addr problem

  - by Andrew Kolvik

  I am using xampp on localhost and when I use _SERVER["REMOTE_ADDR"] it returns ::1 (also does this in phpinfo()). Why does it do this? I want it to return a normal ip address like 127.0.0.1. My operating system is windows vista.

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• How to detect Windows 64 bit platform with .net?

  - by Marc

  In a .net 2.0 C# application I use the following code to detect the operating system platform: string os_platform = System.Environment.OSVersion.Platform.ToString();<br/> This returns "Win32NT". The problem is that it returns "Win32NT" even when running on Windows Vista 64bit. Is there any other method to know the correct platform (32 or 64bit)? Note that it should also detect 64bit when run as 32bit app on Windows 64bit.

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• Screen Capture in DOS

  - by Arman

  Is it possible to capture screen in Disk operating system and save the screen as static jpg image. Kindly give me some direction.

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• Double paging definition

  - by Albinoswordfish

  This is not a programming question but more of an operating system question Right now I'm trying to learn what exactly Double paging means. I see two different terms, double paging on disk and double paging in memory. Apparently this problem arises when we introduce a buffer cache to store disk blocks when doing File I/O But I'm not really sure what exactly this term means. If anybody could specify it would be very helpful.

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• If you could take one computer science course now, what would it be?

  - by HenryR

  If you had the opportunity to take one computer science course now, and as a result significantly increase your knowledge in a subject area, what would it be? Undergraduate or graduate level. Compilers? Distributed algorithms? Concurrency theory? Advanced operating systems? Let me know why. (Note that I appreciate this isn't a far fetched scenario - but time and inertia might be preventing people from taking the course or reading the book or whatever)

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• How to preselect Administrator when running an application using ShellExecuteEx with verb "runas"? (

  - by Xinxua

  I have an application which runs another application (mine) using the WinAPI "ShellExecuteEx" with the verb "RunAs" so that the other application should start with "Administrator" credentials. My OS is Windows XP. (Do not bother about other operating system, as I have specific code in place) The only problem with this thing is that the "Current User" comes preselected. I want it to be the "Following User" with Administrator selected. How to do this?

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• optimizing any OS for maximum informix client/server performance

  - by Frank Developer

  Is there any Informix documentation for optimizing any operating system where an ifx engine is running? For example, in Linux, strip-down to a bare minimum all unnecessary binaries, daemons, utilities, tune kernel parameters, optimize raw and cooked devices (hdparm), place swap space on beginning tracks of a disk, etc. Someday, maybe, Informix can create its own proprietary and dedicated PICK-like O/S to provide the most optimized environment for a standalone ifx server? The general idea is for the OS where ifx sits on have the smallest footprint and lowest overhead impact.

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• File compare on ftp-server and in a folder in linux?

  - by alex

  Need solution for file compare on ftp-server and in local folder. Operating sytem - Linux Ubuntu. Thanks!

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• Calling LoadLibrary on a 64-bit dll from a 32-bit process

  - by Spilly

  Hi, i have a 32-bit exe that needs to dynamically load a 64-bit dll when it detects that the operating system is 64-bit. Is this possible through LoadLibrary? If not, is there another way to accomplish the same goal?

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• How does a GUI Framework work?

  - by AlexW.H.B.

  I have been all over the web looking for an answer to this, and my question is this: How does a GUI framework work? for instance how does Qt work, is there any books or wibsites on the topic of writing a GUI framework from scratch? and also does the framework have to call methods from the operating systems GUI framework? -- Thank you to any one who takes the time to try to answer this question, and forgive me if i misspelled anything.

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• Books for transport layer protocol implementation in Computer Networks

  - by bala1486

  Hello. I am trying to implement a transport layer protocol for my project. I am going to use Linux as my operating system. Could you please suggest me some books or links that explain the implementation of transport layer (like TCP)? Thank you.. Thanks, Bala

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• Open source C program with little requirements and at least 2MB binary size.

  - by max

  Hi, I'm developing a operating system and I need a test program (function of any kind) to test certain internal features. I cannot find any appropriate program to do this job. Probably one of you knows one. The program should be open source, written in C with very little user library usage (only file IO, pthreads, stdio, stdlib preferred) and must have a binary size of at least 2MB. Thanks for any suggestions.

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• Read File/Directory properties with java

  - by Pizza

  How can I read the file information (for example size, line count, last modification, etc) from a file in the file-system or the directory content with JAVA? I need it for a linux operating system. Thanks Ps. This is my first question, althought I have user this forum for a while so please be kind :P

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