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• How to use VisualStyleRenderer in Windows 7?

  - by Paulo Santos

  In a small project of mine I've came across the need of a collapsible group box. Searching the Net, I've found one here. In one of the comments there's an improvement on the original code that uses the VisualStyleRenderer class in order to acquire the TreeView open and closed glyph. Running the code it draws properly the Plus and Minus sing as…

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• how to handle duplicates in AVL tree

  - by Ahmed Kotb

  I want to make my avl tree support adding duplicates but there is a problem with the default behavior of the binary search tree with duplicates that the rotation could make nodes with equal key be on the left and the right of the parent for example adding A,A,A will cause the tree to do a rotation to be something like that A / \ A …

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• Precomputed Kernels with LibSVM in Python

  - by Lyyli

  I've been searching the net for ~3 hours but I couldn't find a solution yet. I want to give a precomputed kernel to libsvm and classify a dataset, but: How can I generate a precomputed kernel? (for example, what is the basic precomputed kernel for Iris data?) In the libsvm documentation, it is stated that: For precomputed kernels, the first…

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• Reading from compressed lucene index

  - by Akhil

  I created a lucene index and compressed the index directory with bz2 or zip. I donot want to uncompress it. Is there any API call that can read the index from this zipped directory and thus allow searching and other functionalities. That is, can lucence IndexReader read the index from a compressed file. I saw that Lucnene IndexReader does…

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• Loading fixtures in django unit tests

  - by loder

  I'm trying to start writing unit tests for django and I'm having some questions about fixtures: I made a fixture of my whole project db (not certain application) and I want to load it for each test, because it looks like loading only the fixture for certain app won't be enough. I'd like to have the fixture stored in…

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• Gecko/Firefox support for HTML5 Notifications

  - by jAndy

  Hi Folks, I'm wondering if there is any build-in support for the HTML5 Notification feature in Gecko browsers so far? Maybe some hidden developer thingy ? I'm aware of WebKits window.webkitNotifications which works great, so, is there a Firefox implementation ? update After searching and reading some w3c HTML5…

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• Java - sorted stack

  - by msr

  Hello, I need a sorted stack. I mean, the element removed from the stack must be the one with great priority. Stack dimension varies a lot (becomes bigger very fast). I need also to search elements in that stack. Does Java give some good implementation for this? What class or algorithm do you suggest for this? …

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• JQuery Autocomplete - format listing and only return a part to the text box

  - by Jason

  I'm using the JQuery Autocomplete and it's working just fine. I'm using it to allow someone to search for users out of a database by searching on last name or id number. Right now the drop down list that is created is the resultes of a SQL query and looks something like: $row_rst['lName'] . ', ' .…

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• How can I fix "[Error 6] The handle is invalid." with PySerial

  - by alnorth29

  I'm trying to connect to my phone from my Windows 7 PC using PySerial with the following code: import wmi import serial c = wmi.WMI() modem = c.query("SELECT * FROM Win32_POTSModem").pop() ser = serial.Serial(modem.AttachedTo, modem.MaxBaudRateToSerialPort) try: ser.write('at \r\n') print…

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• Explain BFS and DFS in terms of backtracking

  - by HH

  Wikipedia about DFS Depth-first search (DFS) is an algorithm for traversing or searching a tree, tree structure, or graph. One starts at the root (selecting some node as the root in the graph case) and explores as far as possible along each branch before backtracking. So is BFS? …

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• ErrorProvider customization with nice features

  - by user302745

  Hi all. someone has a link to a similar project like this but more complete or in c# ?? PROJECT LINK Or someone can translate me the project to c#.NET; I'm unable to do that.So many Errors that I can´t avoid. Thanks a lot. And if someone find this project searching by errorProvider…

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• NSStatusItem (cocoa) location on screen

  - by Craig

  I am trying to get the on screen location of an NSStatusItem so that I can perform a click on that area via code like below. I am doing this so that my users can press a hotkey to see the menu. event = CGEventCreateMouseEvent(NULL, kCGEventLeftMouseDown, newLocation, kCGMouseButtonLeft);…

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• CMS Preventing Bad HTML Insertion by Client?

  - by Jascha

  I'm building a small CMS in PHP for a client and something I've noticed that comes up fairly often is a client will enter a bit of HTML in a field without closing his/her tag. I'm wondering if there is some parsing technique to prevent bad HTML from rendering my whole output page in…

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• Compute average distance from point to line segment and line segment to line segment

  - by Fred

  Hi everyone, I'm searching for an algorithm to calculate the average distance between a point and a line segment in 3D. So given two points A(x1, y1, z1) and B(x2, y2, z2) that represent line segment AB, and a third point C(x3, y3, z3), what is the average distance between each…

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• MySQL full text search with partial words

  - by Rob

  MySQL Full Text searching appears to be great and the best way to search in SQL. However, I seem to be stuck on the fact that it won't search partial words. For instance if I have an article titled "MySQL Tutorial" and search for "MySQL", it won't find it. Having done some…

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• Locating binding errors

  - by softengine

  I'm dealing with a large WPF application that is outputting a large number of binding errors. A typical error looks like this: System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor,…

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• Do not fetch app.manifest each time

  - by Kristof

  For creating an offline version of a bunch of linked web pages I use an app.manifest-file that lists all the web pages for offline caching. I would like it that the app.manifest file is not fetched every time when a user jumps from…

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• MTU mismatch between GetIfEntry and netsh

  - by ChrisJ

  I'm working on pseudo-transport layer software that runs over UDP, providing reliable connection-oriented transmission, as an alternative to TCP. In order to maximize network efficiency, we query the MTU of the "best" network…

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• Break nested loop in Django views.py with a function

  - by knuckfubuck

  I have a nested loop that I would like to break out of. After searching this site it seems the best practice is to put the nested loop into a function and use return to break out of it. Is it acceptable to have functions…

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• Rotation of a single UIViewController in a UITabBarController

  - by burki

  Hi! I have a UITabBarController with four UINavigationControllers. Well, I want to enable the rotation just for one of the four UIViewControllers. According to Apple's doc you shouldn't subclass UITabBarController, so I…

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• converting JSON to an object / dictionary / dynamic

  - by benpage

  I'm currently using jqGrid to display data. Part of jqGrid's interface will give you search options, posting back the search details in a JSON string, for example: …

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• Eclipse - no Java (JRE) / (JDK) ... no virtual machine...

  - by Wallter

  I am trying to get Eclipse Galileo to re-run on my computer - i have run it before with no problems but now i keep getting this error: A java Runtime…

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• Azure - Microsoft.IdentityModel not found

  - by Andy

  Hi There, I'm working with a WCF service in Azure, which uses Windows Live ID authentication with the recent deviceid requirements. When I host my WCF…

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• lucene.net get starting and end index of a highlighted fragment in a searched field

  - by user339995

  "My search returns a highlighted fragment from a field. I want to know that in that field of particular searched document, where does that fragment…

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• Rails 3: What is the proper way to respond to REST-ful actions with JSON in rails?

  - by Damien Wilson

  Hello SO. I'm trying to make an API for my rails application using JSON responses to RESTful resource controllers. This is a new experience for…

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