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• Access Internet From My Blackberry App

  - by Ankit

  Hi all, This is my first attemp to code a blackberry app so please bear with me. I am developing an app to make it easy to access certain information from certain websites using screenscrapping. Now I am done with the ui part of the application onto the internet access part. My question is how do i access internet from my app ? I see that blackberry offers http, wifi and some other forms to access the internet ... does my app need to be worried about what mode is being used ? or as far as my app is concerned theres a general api to access the net with the logic of connecting to the internet being handled by the device itself ..? any pointers with some sample code would be much appreciated. thank you, ankit

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• Exposing a pointer in Boost.Python

  - by Goose Bumper

  I have this very simple C++ class: class Tree { public: Node *head; }; BOOST_PYTHON_MODULE(myModule) { class_<Tree>("Tree") .def_readwrite("head",&Tree::head) ; } I want to access the head variable from Python, but the message I see is: No to_python (by-value) converter found for C++ type: Node* From what I understand, this happens because Python is freaking out because it has no concept of pointers. How can I access the head variable from Python? I understand I should use encapsulation, but I'm currently stuck with needing a non-encapsulation solution.

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• Best way to learn iphone audio queue services, step by step tutorial

  - by optician

  Hi Everyone, I'm trying to learn how to handle audio at a fairly low level with audio queue services. I have been progrmaing in memory managed languages for quite a while, and have just completed the c programing tutorial by vtc (2007). This has left me comfortable with the understanding of pointers and memory allocation, but the apple documention still leaves me wanting for a simpler implenation and explaination. Maybe I need to learn objective c and cocoa better. I have heard that this book is good. Cocoa(R) Programming for Mac(R) OS X (3rd Edition) Could someone suggest a learning path that is going to help me get an better understanding of working with audio and an iphone. I want to be able to play mp3 files back and also alter the pitch of them as they are playing. I am prepared that I may have to temporarily convert the mp3 files into pcm files to do things like that to them. Thanks everyone.

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• ASP.NET MVC Get a list of users with particular profile properties

  - by Sam Huggill

  Hi, I'm using ASP.NET MVC 1 and I have added a custom Profile class using the WebProfile Builder VS add-in (found here: http://code.msdn.microsoft.com/WebProfileBuilder/Release/ProjectReleases.aspx?ReleaseId=980). On one of my forms I want a drop-down list of all users who share a specific profile value in common. I can see that I can get a list of all users using: Membership.GetAllUsers() However I cannot see how to get all users who have a specific profile value, which in my case is CellId. Am I approaching this in the right way? I have used membership roles to define which users are administrators etc, but profiles seems like the right place to group users. Any pointers both in specifics of how to access the user list but also comments on whether am I pursuing the right avenue here would be greatly appreciated. Many thanks, Sam

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• Storing callbacks in a dictionary (Objective C for the iPhone)

  - by Casebash

  I am trying to store callbacks in a dictionary. I can't use blocks as the iPhone doesn't support this (unless you use plblocks). I tried using functions, but apparently NSMutableDictionary doesn't allow these pointers (wants an id) I tried using class methods, but I couldn't find a way to obtain a pointer to these I could try using functions with the c++ stl hashmap (if it is supported in Objective C++), but apparently this can slow compilation times. I could try storing both a class and a selector, but that seems rather messy. What would be the best way to do this?

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• Java JDBC: Reply.fill()

  - by Harv

  Hi, I get the following exception at times: com.ibm.db2.jcc.b.gm: [jcc][t4][2030][11211][3.50.152] A communication error occurred during operations on the connection's underlying socket, socket input stream, or socket output stream. Error location: Reply.fill(). Message: Connection reset. ERRORCODE=-4499, SQLSTATE=08001 The problem is that, the code executes successfully for quite some time and then suddenly I get this exception. However it runs perfrectly when I run the code again. Could some one please tell me what could be wrong and provide me some pointers to resolve this. Thanks, Harveer

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• How to find (in javascript) the current "scroll" offset in mobile safari / iphone

  - by mintywalker

  I'd like to know the x/y offset of the how far the user has "scrolled" within the viewport in mobile safari on the iphone. Put another way, if I (through javascript) reloaded the current page, I'd like to find the values I'd need to pass into window.scrollTo(...) in order to reposition the document/viewport as it is currently. window.pageXOffset always reports 0 jquery's $('body').scrollTop() always reports 0 events have a pageX, but this won't account for the scrolling of the page that happens after you release your finger if your gesture was to "flick" the page up/down. Namely, it'll give me a point when the finger leaves the screen, but that doesn't always match where the page will be after it's finished scrolling. Any pointers?

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• Retrieving well formed HTML using Jericho HTML parser in Java

  - by Raj

  Hello, I've looked at jTidy for converting a snipped of malformed/real-world HTML into well-formed HTML/XHTML. However, there's a bug in the latest version due to which I'm not able to use it. I'm looking at Jericho since it has a lot of positive reviews around the net. However, its not immediately obvious to me how one would go about implementing a method like: public String getValidHTML(String messedUpHTML) For instance, if it was passed <div>bar, it would return <div>bar</div> Any pointers would be helpful. Thanks in advance!

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• how many fps can iPhone's UIGetScreenImage() actually do?

  - by M Katz

  Now that Apple is officially allowing UIGetScreenImage() to be used in iPhone apps, I've seen a number of blogs saying that this "opens the floodgates" for video capture on iPhones, including older models. But I've also seen blogs that say the fastest frame rate they can get with UIGetScreenImage() is like 6 FPS. Can anyone share specific frame-rate results you've gotten with UIGetScreenImage() (or other approved APIs)? Does restricting the area of the screen captured improve frame rate significantly? Also, for the wishful thinking segment of today's program, does anyone have pointers to code/library that uses UIGetScreenImage() to capture video? For instance, I'd like an API something like Capture( int fps, Rect bounds, int durationMs ) that would turn on the camera and for the given duration record a sequence of .png files at the given frame rate, copying from the given screen rect.

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• IBM MQ corrupted messages

  - by Anand

  Hi I posted the question below in the forum and now I am asking another question in the hope that I get some pointers to my answers. my previous post Ok lets begin: Now the problem is like this: OS: Linux 1. I post messages to the IBM MQ 2. The some random messages in the queue get randomly corrupted as posted in the previous stackoverflow question OS: Windows 1. I post messages to the IBM MQ 2. The some random messages in the queue get randomly corrupted as posted in the previous stackoverflow question OS: Windows 1. I post messages to the IBM MQ 2. Now I read the messages and write them to a file just to observe them 3. Also I allow the messages to pass through as is after writing them to file Now everything goes through fine How can I resolve this problem

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• Java interface to Windows communications? (OLE, OPC, DDE)

  - by Jared

  I need to integrate an off-the-shelf Windows application with a Java application. At a few key points, I need the Windows application to send an "event" and some data to the Java application. The Windows application anticipated this need, and can be configured to "Poke a DDE Item", "Set an OLE Auto-Property" or "Write an OPC Item". I'm already using JACOB to call COM methods and set COM properties on a COM object. However, I'm guessing that's pretty unrelated to these "event" notification capabilities. Anyone have any experience calling FROM a Windows application to a "DDE Item", "OLE Auto-Property" or "OPC Item" that's actually in a JVM? Any pointers, advice, etc, would be appreciated.

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• Using a Generic Repository pattern with fluent nHibernate

  - by alex

  I'm currently developing a medium sized application, which will access 2 or more SQL databases, on different sites etc... I am considering using something similar to this: http://mikehadlow.blogspot.com/2008/03/using-irepository-pattern-with-linq-to.html However, I want to use fluent nHibernate, in place of Linq-to-SQL (and of course nHibernate.Linq) Is this viable? How would I go about configuring this? Where would my mapping definitions go etc...? This application will eventually have many facets - from a WebUI, WCF Library and Windows applications / services. Also, for example on a "product" table, would I create a "ProductManager" class, that has methods like: GetProduct, GetAllProducts etc... Any pointers are greatly received.

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• mongomapper, rails3 edge: undefined method `to_key' on form_for

  - by z3cko

  when i am trying to get the basic devise examples running with current git versions from rails, mongomapper and devise, i have the following error appearing: undefined method `to_key' for #<Admin:0x23dee04> here is my actual source: 4: = form_for @admin, :url => admins_path do |f| 5: - field_set_tag 'Update my email' do 6: %p= f.text_field :email 7: %p= error_message_on @admin, :email @admin is the currently logged in user (@admin= current_admin) the same error occurs when trying to use @admin=Admin.first in the controller i am not quite sure if this is a mongomapper problem, might also be rails3 related... thanks for any pointers...

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• How to create makefile for Lazarus projects?

  - by Gustavo Carreno

  After doing a light search on the Lazarus site I've come to the conclusion that this question has been asked some times but I haven't found an answer, so I'll ask my SO peers. Is there a a way to create a Makefile to replicate the action of the Lazarus IDE when it compiles a project. If so I really don't mind if it's makefile.fpc or just plain makefile, I just want some pointers on how to get to it. BTW, I've tried the option to enable the Makefile on the Lazarus options. Doesn't work.

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• plone.app.blob or z3c.blobfile?

  - by askvictor

  I need a blob file field as part of a content type in plone. plone.app.blob's BlobField should provide this, but I can't find how to get a URL to download the file including the original filename (e.g. http://plone.site/plone/obj/orig-file-name.avi). Is there a way to do this using plone.app.blob? Alternately, there are a few pointers on the web pointing to plone.namedfile to do this. plone.namedfile seems to rely on z3c.blobfile. How does z3c.blobfile differ from plone.app.blob? Is one of these methods better than the other? vik

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• How can I extract similarities/patterns from a collection of binary strings?

  - by JohnIdol

  I have a collection of binary strings of given size encoding effective solutions to a given problem. By looking at them, I can spot obvious similarities and intuitively see patterns of symmetry and periodicity. Are there mathematical/algorithmic tools I can "feed" this set of strings to and get results that might give me an idea of what this set of strings have in common? By doing so I would be able to impose a structure (or at least favor some features over others) on candidate solutions in order to greatly reduce the search space, maximizing chances to find optimal solutions for my problem (I am using genetic algorithms as the search tool - but this is not pivotal to the question). Any pointers/approaches appreciated.

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• How to render Asian characters in a PDF using xhtmlrenderer

  - by Mark Derricutt

  I was wondering what steps were needed to render Asian characters using the java based xhtmlrenderer (flying saucer) library? I am wanting to render the following: <html> <body>????????</body> </html> Without any font settings being added to the HTML this renders fine in normal browsers, but I can't find anyway to render this to PDF using the iTextRenderer portion of xhtmlrenderer. After following various threads on the mailing list, I see lots of posts talking about adding .TTF files from the c:\windows\fonts directory, and I have modified the examples to run on linux ( https://gist.github.com/643173745182c9becc57 ), which shows me various fonts being displayed, but I don't see any Asian glyffs. Does anyone have any decent pointers, or clean solutions to this problem? Or am I looking at the wrong problem with a really simple solution elsewhere?

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• sharp architecture question - no strongly typed views

  - by csetzkorn

  Hi, I am trying to get my head around the sharp architecture and used the visual studio template as described on the web: http://wiki.sharparchitecture.net/VSTemplatesAndCodeGen.ashx This is all cool. Unfortunately, I cannot add a strongly typed view as easily as I am used to ‘under’ asp.net mvc. What can I do to ‘enable’ this in VS 2008 Prof? I have also installed asp.net mvc 2.0 and would like to reflect this in my ‘vs studio sharp environment’. Any pointers would be very much appreciated. Many thanks in advance. Best wishes, Christian

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• Spring GAE/J Could Not find API version error

  - by Julie Paltrow

  Hello, I am trying to use Spring MVC 3 on GAE/J and I got this error and I do not know what it means, does anybody have an idea and perhaps give me pointers on how to fix this? May 21, 2010 9:50:23 AM com.google.appengine.tools.info.LocalVersionFactory getVersion INFO: Could not find API version from /opt/home/me/workspace/SpringMVC/war/WEB-INF/lib/.svn java.util.zip.ZipException: error in opening zip file at java.util.zip.ZipFile.open(Native Method) at java.util.zip.ZipFile.<init>(ZipFile.java:114) at java.util.jar.JarFile.<init>(JarFile.java:133) at java.util.jar.JarFile.<init>(JarFile.java:97) at com.google.appengine.tools.util.ApiVersionFinder.findApiVersion(ApiVersionFinder.java:37) at com.google.appengine.tools.info.LocalVersionFactory.getVersion(LocalVersionFactory.java:65) at com.google.appengine.tools.info.UpdateCheck.getLocalVersion(UpdateCheck.java:112) at com.google.appengine.tools.info.UpdateCheck.checkForUpdates(UpdateCheck.java:91) at com.google.appengine.tools.info.UpdateCheck.doNagScreen(UpdateCheck.java:164) at com.google.appengine.tools.info.UpdateCheck.maybePrintNagScreen(UpdateCheck.java:132) at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:150) at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:48) at com.google.appengine.tools.development.DevAppServerMain.<init>(DevAppServerMain.java:113) at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:89)

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• Observing model changes with Cocoa Bindings and NSArrayController

  - by jbrennan

  I've got an NSArrayController bound to a mutable array in my controller, which manages an array of my model objects. The array controller is bound to my UI. It works well. Now I'm trying to manually observe when a value changes in my model in my controller class (basically I'm marking the changed model as "needsToSave" for later on, but there are a few other tasks I have when it changes). I've read up on KVO but I'm not entirely sure what I need to be observing... The NSArrayController? The array of objects? each model object itself? Confusion. Any pointers would be very helpful. Thanks in advance!

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• Microsoft Visual Studio SDK DSL Tools - Any serious takers?

  - by amazedsaint

  We are considering Microsoft DSL toolkit for creating some abstract designers. I already did some POCs, but would like to get some opinions on the same. Any one here to share their experiences working with Microsoft DSL Toolkit and T4? Also, any pointers to open source DSL projects will help - Eg. Microsoft Service Factory modeling edition is heavily relying on DSL toolkit. As OSLO/Quadrant will take some time to get released, I think the only option we have is to rely on Microsoft DSL designer. (See Kieth's blog on the same) Also, here is some information I already have on DSL: 1 - A Nice Lab in MSDN on DSL tools 2 - A List of Projects in Codeplex using DSL toolkit

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• iPhone SDK: How to add an image to a UIBarButton?

  - by iPhone Developer

  I have used the code below to create a button on the nav bar with an image. I can see the image but I can also see the border of the button around it. My question is, how can I get rid of the button border. All I want to see is the image on the nav bar, no border. UIBarButtonItem *settingsBtn = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"icon_prefs.png"] style:UIBarButtonItemStylePlain target:self action:@selector(openSettings:)]; [[self navigationItem] setLeftBarButtonItem:settingsBtn]; [settingsBtn release]; Thanks in advance. Any pointers, links to read further or examples appreciated.

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• datamapper secondary key

  - by Luc

  Hello, I am using datamapper in a ruby application and I'm facing a problem I do not understand. I have a Appartment model and a Location model. An appartment is at a given location and several appartments can be at the same location. This typically described a 1-n relationship (I guess :-) ) My feeeling is that in the Appartement sql table I need a location_id but I do not want any Appartment pointers within the Location table. For me, Location should live on its own and should not reference appartment. In the Appartement ruby class, I have added: has n, Location but it then creates an appartment_id within the Location ruby class, which I do not want. Would you have any clue ? Thanks a lot, Luc

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• Are there any B-tree programs or sites that show visually how a B-tree works

  - by Phenom

  I found this website that lets you insert and delete items from a B-tree and shows you visually what the B-tree looks like: java b-tree I'm looking for another website or program similar to this. This site does not allow you to specify a B-tree of order 4 (4 pointers and 3 elements), it only lets you specify B-trees with an even number of elements. Also, if possible, I'd like to be able to insert letters instead of numbers. I think I actually found a different site but that was a while ago and can't find it anymore.

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• Can I programatically get hold of the Autos/local variables that is shown when debugging?

  - by Stefan

  Im trying to build an error-logger that loggs running values that is active in the function that caused the error. (just for fun so its not a critical problem) When going in break-mode and looking at the locals-tab and autos-tab you can see all active variables (name, type and value), it would be useful to get hold of that for logging purposes when an error occur and on some other occasions. For my example, I just want to find all local variables that are of type string and integer and store the name and value of them. Is this possible with reflection? Any tips or pointers that get me closer to my goal would be very appreciated. I have toyed with using expression on a specifik object (a structure) to create an automapper against a dataset, but I have not done anything like what I ask for above, so please make me happy and say its possible. Thanks.

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