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• Solving simultaneous equations

  - by Milo

  Here is my problem: Given x, y, z and ratio where z is known and ratio is known and is a float representing a relative value, I need to find x and y. I know that: x / y == ratio y - x == z What I'm trying to do is make my own scroll pane and I'm figuring out the scrollbar parameters. So for example, If the scrollbar must be able to scroll 100 values (z) and the thumb must consume 80% of the bar (ratio = 0.8) then x would be 400 and y would be 500. Thanks

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• How to make "Open File..." window in netbeans PLATFORM?

  - by joseph

  Hello, I need to create something like internal frame in netbeans platform, which loads file from any location. I tried it by jInternalFrame, but I was not able to find some container to which I can add my frame. I am working in netbeans platform, which has own pre-created main window. Pease help me by any advice, I am dealing with this about 10 hours, still without result.

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• Getting HWND of current Process

  - by Arman

  I have a process in c++ in which I am using window API. I want to get the HWND of own process. Kindly guide me how can I make it possible.

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• PHP OOP Design Patterns: Should I Create two seperate classes for registration and form validation?

  - by Joshua Poshua

  So here's my problem: I have two types of registration, registration A and registration B, each will have some of the same fields and some different fields. I was going to create abstract class registration and both A and B would have their own classes that extend from registration. My question is, should I create a seperate Validation class with seperate A and B validation classes that extend? or is there a better pattern to use for something like this? Thanks

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• friendship database schema

  - by Daniel Hertz

  I'm creating a db schema that involves users that can be friends, and I was wondering what the best way to model the ability for these friends to have friendships. Should it be its own table that simply has two columns that each represent a user? Thanks!

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• Will NKDbgPrintfW be compiled to nop in release build?

  - by Johann Gerell

  I know about and have used the macros DEBUGMSG, RETAILMSG, ERRORMSG, that all take a condition parameter. For general formatted debug output, though, I want to use ::NKDbgPrintfW directly and wonder if someone knows if it compiles to a nop in optimised release builds or if my own macro wrapper around it with #ifdef DEBUG is still needed?

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• Generating an Excel file in ASP.NET

  - by Dan Coates

  I am about to add a section to an ASP.NET app (VB.NET codebehind) that will allow a user to get data returned to them as an Excel file, which I will generate based on database data. While there are several ways of doing this, each has its own drawbacks. How would you return the data? I'm looking for something that's as clean and straightforward as possible.

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• cleaning up expired sessions with a custom SessionStateStoreProvider

  - by CountCet

  I'm implementing my own SessionStateStoreProvider with a schemaless database. It's a little hard to tell from the documentation but it seems as though I will have to have a separate process for cleaning up expired sessions since the database will not have a way to notify the session state store that a session has expired. Am I wrong about this? I haven't seen an alternative example for overriding the SetItemExpireCallback method.

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• What is the best Linux distribution as a Xen host?

  - by St3fan

  I ordered a server for the home office and I would like to partition it with Xen. I think this will keep things clean and easier to maintain. I will be running things like MySQL, PostgreSQL, Tomcat and my own code on this machine. My question is: what freely available Linux distribution has the best Xen hosting facilities?

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• Is it possible to invoke SOAP request in JavaFX?

  - by isaacniu

  I've been spending considerable time on this, while finally realized that most articles are teaching how to access RESTful web services but not SOAP. Is this possible? I mean can I write my own clients codes to invoke SOAP request to remote web server?

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• How do I begin with making a small cross-site AJAX script using someone's API?

  - by Daddy Warbox

  Let's say I want to use this API: http://hiveminder.com/help/reference/API.html The instructions walk through its use via. the curl command line tool, which I'm unfamiliar with. I want to access this API through a simple script on my own page. What are the steps I need to do this?

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• How do you get log4j to roll files based on date and size?

  - by Jose Chavez

  So log4j comes with two existing log rollers: RollingFileAppender, and DailyRollingFileAppender. Has anyone heard of an appender that does both of what the former do? I need an appender that will roll log files based on filesize, but also append the current date to it. I've been thinking about creating my own appender, but if there is already one that has been created, why not save the time and use that one?

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• How can I use the HSL colorspace in Java?

  - by Eric

  I've had a look at the ColorSpace class, and found the constant TYPE_HLS (which presumably is just HSL in a different order). Can I use this constant to create a Color from hue, saturation, and luminosity? If not, are there any Java classes for this, or do I need to write my own?

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• In actionscript, why is my static class member variable not the same when accessed from different pa

  - by Ryan M

  I have an actionscript class with a static member variable defined. public class A { public static var x:int; } When I try to access it from different parts in my code I don't get the same value in each spot. A.x I am accessing the variable in different modules that are loaded, so they are all in their own separate .swf file. Could this by why?

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• Typing enter/return key in selenium

  - by Nathan

  Looking for a quick way to type an enter or return key in Selenium. Unfortunately the form I'm trying to test (not my own code so I can't modify) doesn't have a submit button. When working with it manually, I just type enter or return, and just need to know how to do that with the Selenium "type" command

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• Base32 Decoding

  - by trampster

  I have a base32 string which I need to convert to a byte array. And I'm having trouble finding a conversion method in the .net framework. I can find methods for base64 but not for base32. Convert.FromBase64String – something like this for base32 would be perfect. Is there such a method in the framework or do I have to roll my own?

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• Clamping a vector to a minimum and maximum?

  - by user146780

  I came accross this: t = Clamp(t/d, 0, 1) but I'm not sure how to perform this operation on a vector. What are the steps to clamp a vector if one was writing their own vector implementation? Thanks clamp clamping a vector to a minimum and a maximum ex: pc = # the point you are coloring now p0 = # start point p1 = # end point v = p1 - p0 d = Length(v) v = Normalize(v) # or Scale(v, 1/d) v0 = pc - p0 t = Dot(v0, v) t = Clamp(t/d, 0, 1) color = (start_color * t) + (end_color * (1 - t))

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• How can I access the C# performance counter in the code?

  - by Lawrence A. Contreras

  I want to use the performance counter output in my program. How can I access the performance counter in code without using the perfmon.exe. I want to create my own performance counter app.

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• BitBucket Wiki: Create a heirarchy structure?

  - by Rosarch

  I want to create a hierarchy in my wiki like so: General FooPages Foo1 Foo2 Foo3 ODP Bar Baz I would like to create these pages, and use <<toc>> table of contents macros to organize them. How can I do that? Do I need to clone and edit the wiki on my own machine, or can I do that exclusively through the web interface?

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• Looking for an Open Source Project in need of help

  - by hvidgaard

  Hi StackOverflow! I'm a CS student on well on my way to graduate. I have had a difficult time of finding relevant student jobs (they seems to be taken merely hours after the notice gets on the board) , so instead I'm looking for an open source project in need of help. I'm aware that I should choose one that I use, but I'm not aware of any OS-project that I use that needs help. That's why I'm asking you. I don't have any deep experience, but I here are some of my biggest projects so far: BitTorrent-ish client in Python (a subset of BitTorrent) HTTP 1.1 webserver in Java Compiler from a subset of Java to run on JRE Flash-framework project to model an iPad look and feel (not to run actual iPad programs) complete with an API for programs. Complete MySQL database for a booking system, with departure and arrival times, so you could only book valid tickets (with a Java frontend). I know, Java and languages like AS3 and C# feels natural per se, Python, and have done a fair bit of hacking around in C, but I don't feel very comfortable with it. Mostly I'm afraid to make a fuckup because I have such a high degree of control. I would like to think I'm well aware of good software design practices, but in reality what I do is ask myself "would I like to use/maintain this?", and I love to refactor my code because I see optimizations. I love algorithms and to make them run in the best possible time. I don't have any preferred domain to work in, but I wouldn't mind it to be graphics or math heavy. Ideally I'm looking for a project in C++ to learn the in's and out's of it, but I'm well aware that I don't know that language very well. I would like to have a mentor-like figure until I'm confident enough to stand on my own, not one to review all my code (I'm sure someone will to start with anyway), but to ask questions about the project and language in question. I do have a wife and two children, so don't expect me to put in 10+ hours every week. In return I can work on my own, I strive to program modular and maintainable code. Know how to read an API, use Google, StackOverflow and online resources in general. If you have any questions, shoot. I'm looking forward to your suggestions.

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• What is the best VCS Solution for Windows?

  - by Alix Axel

  My code base is getting quite big and it's difficult to organize all the different branches using just directories, I was wondering what would be a decent version control system for my own personal use that works (with little hassle) on Windows? PS: I'm not looking for hosted VCS like GitHub, SourceForge or Google Code.

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• Paypal Standard option does not appear on the Checkout page

  - by Avalon

  After I fill in all the information in the backend of my Magento 1.4.0.1 installation as described here, the Paypal option is not available on the One-Page-Checkout. Does anyone have an idea as to why this can be happening? Cache and Var have been emptied and I tried it on the standard and on my own theme. Kind regards, Avalon

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• Do i need to dispose of MySqlCommand?

  - by acidzombie24

  I find it incredibly annoying to write a using statement on every one of my queries (which require its own command or write parameters.clear()) which sometimes require declaring variables outside of the using block. Its so incredibly annoying and looks much dirtier compared to the version without disposing the object. Do i need to dispose of it? what happens if i dont? I do know its good practice to dispose of an object when it has that interface.

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• drupal : How to set separate editing template files for each nodes ?

  - by Thomas John

  Hello guys I have a 3 page drupal(6.20) site, each page has its own template like page-node-1.tpl.php, page-node-2.tpl.php, page-node-3.tpl.php, I would like to set separate templates when editing each node, I tried page-node-1-edit.tpl.php but its not working, but page-node-edit.tpl is working, but its common to all nodes, I need separate editing templates for each node like page-node-1-edit.tpl.php and page-node-2-edit.tpl.php Thanks a lot for your time

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• java how to get top level container of a compoent?

  - by 5YrsLaterDBA

  is there a way to get the top level container of a component? For example I have a JToolbar and I want to know at one monent the top level container of that JToolbar is my JFrame or is its own window, a JDialog.

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