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• How to implement Persistent List or Persistent Mapping in ZODB

  - by gizgok

  One to many relationships not working in ZODB as list is mutable.They say solution is Persistent Mapping or Persistent List or BTree.Can someone please tell me how is it exactly done

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• How to get the exit status of a Java program in Windows batch file

  - by pugmarx

  Analogous to the $? in Linux, is there a way to get the exit status of a program in a Windows batch file (.bat)? Say for example the program has a System.exit(0) upon successful execution, and a System.exit(1) upon a failure, how do I trap these exit values in a .bat file?

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• Why is fisher yates the most useful shuffling algorithm?

  - by Phoenix

  Would you say modern version of fisher yates is the most unbiased shuffling algorithm? How would you explain that each element in the array has a probability of 1/n being in its original spot?

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• C - converting to 2s complement

  - by tom

  I've decided to do it this way flip numbers 0=1, 1=0 add 1 to LSB if carry, loop until array[i]==0 But I'm stuck on the last point; how can I say that in a conditional loop?

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• write a opengl frame into a PPM using glReadPixels function

  - by small_potato

  I am using to use following code to write a frame in opengl to a PPM file: GLubyte buffer[window_width][window_height][3]; glReadPixels(0, 0, window_width, window_height, GL_RGB, GL_UNSIGNED_BYTE, buffer); My question is how can I convert Glubyte into unsigned char say unsigned char* c?

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• How do I create a custom python interpreter? i.e. with certain modules already included?

  - by Johnny Brown

  If you've used Ruby on Rails, I'm thinking of the feature where the user types 'rails console' and instantly gets a Ruby console with rails and the current app already loaded. I want to make something like this for a python program I'm working on, does anyone know how I would get to type say, 'python myPythonConsole.py' and open up a regular python interpreter but with my program and all its dependencies loaded?

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• iPhone: Set the title of a UIButton with a single method invocation?

  - by Greg Maletic

  I'd like to set the title of a UIButton via code. I find myself having to call -[UIButton setTitle:forState:] for UIControlStateNormal, UIControlStateHighlighted, UIControlStateDisabled, UIControlStateSelected. And that doesn't even take into account all of the combinations of these states together. Needless to say, this is tiresome. Is there a single call I can make that will set one string as the title for all of the states? (Since, I assume that in 95% of the cases, that's the desired behavior?)

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• uitableview delegate methods are not called

  - by Sean

  hi all i got the problem that the tableview methods are not called the first time the tableview is shown. if switch back to the previous view and then click the button to show the tableview again, the methods are called this time. i've to say that i show an actionsheet while the tableview is loading. the actionsheet i call in the ViewWillAppear method. thanks in advance sean

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• Zoom to specified mesh

  - by David

  Say we have 3 mesh in the viewport3d and one camera. If I select mesh 1 I want the camera to zoom to the specified mesh?

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• Proprietary software based on MIT license.

  - by Kevin_Jim

  As far as I understand. I can use a project licensed under MIT license into a proprietary software. Am I right? It dosen't force any copyleft and I don't have to say that my project is based on something else. That means I can fork the hell out of it, right? Can someone shed some light over this?

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• How to get the reference of latest version of MS Excel in VB.net application?

  - by Varun Mahajan

  I am using Excel Interop in my VB.net application. I am using Microsoft Office 11.0 Object Library and Microsoft.Office.Interop.Excel for excel automation. Both the dlls are for Office 2003. My question is, how can I get my project to refer to the latest version of MS Office( say Office 2010)

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• android incoming call screen

  - by shaimagz

  I would like to add details to the incoming call screen on android. lets say I have a string 'x', so I want 'x' to show up on the incoming call screen under the name of the person who is currently calling. I know this is possible because of this apps: CallerId, Vringo I'm pretty new to this area, so I need to know what is the process to achieve that, for example: get the event of incoming call, go to the incoming call interface and so on. Thanks!

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• Create controls from code - VB.NET

  - by Kevin

  Hello everyone, I want to know if I can create a WebBrowser through code in Vb.NET, instead of dragging a webbrowser into the form. Simple enough to say, I would greatly appreciate your help.

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• Best practices for custom http user-agent strings?

  - by Noufal Ibrahim

  I'm developing an application that communicates with an internal web service using HTTP. Are there any "best practices" for custom user-agent strings so that I can put a nice one in my app? It's a Python library and the lower transport is Python's own httplib. Should the user-agent string say that or something else?

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• Biased Random Number Generator

  - by cmptrer

  I am looking for a random number generator that can be biased. For instance, say I want a random number between 1-5, with the probability being: 1: Comes up 20% of the time 2: Comes up 10% of the time 3: Comes up 40% of the time 4: Comes up 25% of the time 5: Comes up 5% of the time Is there anything in the standard library, or other libraries out there that would do this? Alternatively, is there an efficient way to do this myself?

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• COM C# Memory leak Tracing

  - by maxfridbe

  Is there a way to find out the memory usage of each dll within a c# application using com dll's? Or what would you say is the best way to find out why memory grows exponentially when using a com object (IE. Whether the COM object has a memory leak, or whether some special freeing up of objects passed to managed code has to occur(and/or how to do that)).

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• asp.net Chart control - Pie Chart - Text around/outside piechart with tooltip

  - by ramdotnet

  Hi, I am having a requirement, where I need to have a pie-chart, i need text around pie-chart , the text should be a hyperlink. Ex: we have 3 three fields A,B,C. A's ratio is 30%, B's ratio is 40%, c's ratio is 30% So pie chart gets divided into 3 parts, outside the graph , we should get the label A(in A's area only), when we point on , tool tip should say "A's ratio is 30 %'. I am working in .Net 3.5, VS 2008, using MS chart control(added explicitly by executing MSChart.exe. Thanks in Advance Ram

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• insert BibTeX article *here*, not at the end of the article

  - by vy32

  I've seen this before, but I just can't find it. I am writing a resume and want to include the articles from my bibtex file. If I write \cite{FOO} then they all appear at the end. I know that there is some way to say \something{FOO} and the FOO reference appears here. Basically, I want this section of my CV to look like: \something{FOO1} \something{FOO2} What is the \something? Thanks.

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• Licensing software that uses GPL code with licenses other than GPL

  - by swampsjohn

  Let's say I write some code, which we'll call X. It uses some GPL code, let's call it library Y. Clearly I would have to release X with a GPL license. That's fine. My question is, can I additionally release X under a license such as MIT, so that if someone only wants X but not Y they don't need to use it with the GPL?

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• Voice transforming using OpenAL on iPhone

  - by eaglelouk@

  Hi there, I've played a little bit with OpenAL, and I must say that it's pretty fast, even on the iPhone. However, I still got one problem. My app is recording the user voice, and repeats what he said using OpenAL. I've modified the AL_PITCH value, but it's currently also changing the speed, which I don't want to ! Is there a simple way to only change the tonality ? Thanks ;)

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• How to programmatically reference a Silverlight DataGrid cell?

  - by user232228

  Most grids use a syntax such as MyGrid[row, col] to reference a particular cell programatically. How is this done, say, in C#, for the Silverlight DataGrid? All examples I've seen thus far use only XAML. Thanks.

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• How to run concurrency unit test?

  - by janetsmith

  Hi, How to use junit to run concurrency test? Let's say I have a class public class MessageBoard { public synchronized void postMessage(String message) { .... } public void updateMessage(Long id, String message) { .... } } I wan to test multiple access to this postMessage concurrently. Any advice on this? I wish to run this kind of concurrency test against all my setter functions (or any methodn that involves create/update/delete operation). Thanks

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• logout with basic authentication without closing webbrowser like banking sites will display

  - by Satya

  hi, I need to come out of the application after some inactivity session I tried using session.invalidate(); but it is not working as i am using basic authentication and i redirected to JSP page where it asks for login again but it is not asking any login credentials directly logging in to application The only way to logout with basic authentication is to close the Webbrowser. I need an API such that after inactivty say 10 mins it should redirect to one JSP page without closing the browser like banking sites will display session expired please login again Thanks in advance, Satya

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• How can I show figures separately in matplotlib?

  - by Federico Ramponi

  Say that I have two figures in matplotlib, with one plot per figure: import matplotlib.pyplot as plt f1 = plt.figure() plt.plot(range(0,10)) f2 = plt.figure() plt.plot(range(10,20)) Then I show both in one shot plt.show() Is there a way to show them separately, i.e. to show just f1? Or better: how can I manage the figures separately like in the following 'wishful' code (that doesn't work): f1 = plt.figure() f1.plot(range(0,10)) f1.show()

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• Software versioning standards

  - by Yurish

  Are there any software versioning standards? Or i can change version of my product, when i have made some changes to it? Is there any percentage in changes, by which i can say, what version this product will have?

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