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  • Installing Daemons

    - by Shahmir Javaid
    Dear Stackoverflowers, A simple link would be nice for me to understand how to install my C++ program as a deamon in UNIX, now i know some will say this should be on SERVERFAULT but as far as i understand it i need the init.d shell script to actually create the start and stop for the daemons. But if you guys can show me a simple shell script for the daemon and the file directories every thing required is associated with, that would be great. I was going to do this http://www.linux.com/archive/feed/46892 but if you read the comments every one is moaning x( . P.S. ive already done the required code for C++ to run as a daemon i just need to know how to actually install it as a daemon. At the moment im using crontab which is just not a good idea for the future of my problem. Thanks in advance

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  • .net 4.0 Adoption Rate

    - by AKRamkumar
    What is the adoption rate of .net 4.0? When will it be on Windows Update? I heard that it is smaller than 3.5, does that mean if I install .net 4.0, it will decrease the space used by the framework? If I make an application in 3.5 and it runs on a computer that has 4.0, will my application get some of the optimizations that 4.0 uses?

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  • Is there a calculator with LaTeX-syntax?

    - by Jørgen Fogh
    When I write math in LaTeX I often need to perform simple arithmetic on numbers in my LaTeX source, like 515.1544 + 454 = ???. I usually copy-paste the LaTeX code into Google to get the result, but I still have to manually change the syntax, e.g. \frac{154,7}{25} - (289 - \frac{1337}{42}) must be changed to 154,7/25 - (289 - 1337/42) It seems trivial to write a program to do this for the most commonly used operations. Is there a calculator which understand this syntax? EDIT: I know that doing this perfectly is impossible (because of the halting problem). Doing it for the simple cases I need is trivial. \frac, \cdot, \sqrt and a few other tags would do the trick. The program could just return an error for cases it does not understand.

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  • How do you set the sitemap priority for flatpages in django?

    - by mlissner
    I have a site with about 60,000 pages that are getting placed in the sitemap, and which have a priority of 0.3. These are all really long pages that are rich in keywords. I also have a few pages (like the about page), that need high priority, but which I've implemented with the django flatpages framework. Is it possible for pages created this way to have a higher priority in the sitemap?

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  • MKReverseGeocoder server returned error: 503

    - by raaz
    Hi all, Currently i am developing an iPhone application where i have to show user's current city and location for which i am using Mapkit Framework.When i build the application it works fine and show me the exact city details .But right now when i try to build the application again application shows following error message in my log /SourceCache/ProtocolBuffer_Sim/ProtocolBuffer-26/Runtime/PBRequester.m:523 server returned error: 503 reverseGeocoder: didFailWithError:Error Domain=PBRequesterErrorDomain Code=6001 "Operation could not be completed. (PBRequesterErrorDomain error 6001.)" Is any body facing the same issue and how can i resolve it?

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  • Timezones and the DateTimeField - Django

    - by RadiantHex
    Hi folks, I'm trying to implement a "time ago" feature, for the displaying of items on a site. As I'm caching the pages I wish to use javascript in order to render the "time ago". Javascript knows local time and problably the Timezone of the local machine so I could play with that, but that would require to hard code the server's timezone. Therefore I'm trying to figure out a simple way to pass a ISO 8601 timestamp, in GMT time. Is there any simple and straight forward way for doing this? Help would be much appreciated! =)

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  • google-app-engine-django: authentication without Google accounts?

    - by cv12
    google-app-engine-django/ claims to have an "App Engine compatible implementation of the Django authentication framework". Does this authentication work only with Google Accounts? Is it possible to register a user with a username/password and authenticate him/her with that username/password without that user having a Google account? I would appreciate any pointers to how this could be done with google-app-engine-django without Google Accounts authentication.

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  • MVC in a Google App Engine Java world

    - by thatismatt
    I'm coming to Java from C# & ASP.NET MVC, I'd love to find an equivalent in the Java world that I could use on the Google App Engine. I've already started to have a play with FreeMarker and even made the first steps towards writing a very simple framework. Ideally I wouldn't have to do all the hard work though, someone must have done this already! So my question is - what frameworks are there out there that would be familiar for me coming from ASP.NET MVC and I could use them on Google App Engine for Java. The key things I'd want are: Simple Routing - /products/view/1 gets mapped to the view action of the products controller with the productid of 1 Template Engine - some way of easily passing 'ViewData' to the view, and from the view easily accessing it, ideally I'd love to avoid anything that is too XMLy (thus why I like FreeMarker).

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  • iPhone 3.5mm jack based application

    - by maverick
    I want to encode data via a DTMF encoder and send it back to the iPhone via the 3.5mm Jack. Is it possible to send data back into the 3.5mm jack. conventionally audio signals are sent out over the iPhone 3.5mm jack? Is there provision to deal with DTMF and 3.5mm jack based input applications in Iphone's External Accessory framework?

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  • How to pretend to be a Printer on iOS like the Apps Save2PDF or Adobe® CreatePDF?

    - by Lindemann
    I want to convert HTML to PDF on an iOS Device... ...but I dont want to load my HTML in a UIWebView, take a snapshot and generate an ugly PDF from this snapshot picture...because the text must be selectable for my purpose. I wonder how Apps like Save2PDF or Adobe® CreatePDF are able to converting multiple files into PDF and save them. I guess they don't generate the PDF's by their own, but get them from Apples Printing Framework. How does this Apps work?

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  • How do I show a user's credit based on their session

    - by Jamie
    Hi all - I'm developing a simple LAMP app where users can credit their account using Paypal. I suspect this is a simple issue, but have spent quite a while experimenting to no avail and would appreciate any thoughts: System has a user management system working fine using sessions, but I can't get it to display the current user's credit. But I've been trying things along the lines of: $result = mysql_query(" SELECT * FROM users INNER JOIN account ON account.UserID=account.UserID ORDER BY account.accountID"); while($_SESSION['Username'] = $row['Username'] ) { echo $row['Username']; echo $row['Credit']; } I suspect the while statement is invalid, but I want it to echo username and credit where the current session username = the username stored in the database. Thanks so much for taking a look - very much appreciated.

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  • Are preprocessors obsolete in modern languages?

    - by Earlz
    Hello, I'm making a simple compiler for a simple pet language I'm creating and coming from a C background(though I'm writing it in Ruby) I wondered if a preprocessor is necessary. What do you think? Is a "dumb" preprocessor still necessary in modern languages? Would C#'s conditional compilation capabilities be considered a "preprocessor"? Does every modern language that doesn't include a preprocessor have the utilities necessary to properly replace it? (for instance, the C++ preprocessor is now mostly obsolete(though still depended upon) because of templates.)

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  • How to reflect in the database a new belongs_to and has_many relationship in Ruby on Rails

    - by Ken I.
    I am new to rails (usually a python guy) and have just been trying to build a simple task manager application for fun. I am using Devise for authentication and have a single Task object I am trying to relate to a user. I have added the following to the Task model: class Task < ActiveRecord::Base belongs_to :user end and I have added the following in my User model for Devise: class User < ActiveRecord::Base has_many :dreams <<normal Devise stuff>> end Whenever I added this information I then ran: rake db:migrate. It then gave me an error that the database field did not exist for user_id when I tried to do anything with it. I am sure it is something rather simple that I am missing. Thanks for the help.

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  • Weird result comparing property values using reflection

    - by Brian
    Can someone explain why this is occurring? The code below was executed in the immediate window in vs2008. The prop is an Int32 property (id column) on an object created by the entity framework. The objects entity and defaultEntity were created using Activator.CreateInstance(); Convert.ChangeType(prop.GetValue(entity, null), prop.PropertyType) 0 Convert.ChangeType(prop.GetValue(defaultEntity, null), prop.PropertyType) 0 Convert.ChangeType(prop.GetValue(entity, null), prop.PropertyType) == Convert.ChangeType(prop.GetValue(defaultEntity, null), prop.PropertyType) false

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  • Create XML File Using XML Schema

    - by metdos
    Is there any easy way to create at least a template XML file using XML Schema? My main interest is bounded by C++, but discussions of other programming languages are also welcome.By the way I also use QT framework.

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  • Struts or Spring MVC or Struts & Spring?

    - by Shaw
    I need some information to understand design decision: Is Struts a better choice than Spring MVC? I hear about Strus-Spring-Hibernae combo - Is struts used at MVC layer because its a matured framework than when compared to Spring MVC? Any one used this combination for projects or aware of issues?

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  • How pattern lock disbles screen lock in android

    - by CED
    Hi, In android 2.1, if we enable pattern lock, then the screen lock (slide to unlock) is not displayed and if pattern lock is disabled then screen lock is enabled again. Can someone point me out the java file in framework and the function where this happens. I mean when the screen is about to get locked, how does android decide that whether it will display pattern lock or screen lock and if pattern lock, how it prevents the screen lock from getting displayed.

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  • Examples of Hierarchical-Model-View-Controller (HMVC)?

    - by Stephen
    Hi, I'm interested in the Presentation-Abstraction-Control? (aka Hierarchical-Model-View-Controller (HMVC)) Architectural Pattern for constructing complex user interfaces (GUI or web) and was wondering if anyone was aware of any examples in the wild where I could read the code? My list so far; Cairngorm framework for Adobe Flex any others I'm aware of the JavaWorld article and associated letters cited in the wikipedia article http://en.wikipedia.org/wiki/Presentation-abstraction-control

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  • MVVM in a canvas with usercontrols

    - by Mauro Destro
    I have a MVVM WPF application that basically wants to be a single line diagram designer for an electrical distribution network. I have a canvas that must contains transformers, circuit breaker, lines and cables. My big problem is the design... How can i start? I think about a DesignerView, DesignerViewModel that contains an ObservableCollection of IDesignerItemViewModel that is my base class for all the element. But in this case I have to use ItemsControl to bind the content of the canvas to my collection but the pros is that I don't have to create usercontrol for each element but i'll solve most of the problems with DataTemplate (i suppose). Each element viewmodel mantain a link to a model persisted in a repository where i mantain my logical tree. Any hint about how to proceed, I have looked at many DiagramCanvas example but all of those use simple items most like simple rectangle...

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  • Why are getters prefixed with the word "get"?

    - by Joey
    Generally speaking, creating a fluid API is something that makes all programmers happy; Both for the creators who write the interface, and the consumers who program against it. Looking beyond conventions, why is it that we prefix all our getters with the word "get". Omitting it usually results in a more fluid, easy to read set of instructions, which ultimately leads to happiness (however small or passive). Consider this very simple example. (pseudo code) Conventional: person = new Person("Joey") person.getName().toLower().print() Alternative: person = new Person("Joey") person.name().toLower().print() Of course this only applies to languages where getters/setters are the norm, but is not directed at any specific language. Were these conventions developed around technical limitations (disambiguation), or simply through the pursuit of a more explicit, intentional feeling type of interface, or perhaps this is just a case of trickle a down norm. What are your thoughts? And how would simple changes to these conventions impact your happiness / daily attitudes towards your craft (however minimal). Thanks.

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