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Articles indexed in June 2010

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  • Comparison between pointer and integer (cocoa)

    - by Cal S
    Hi, I'm just learning cocoa (coming from C#) but I'm getting a strange error for something that seems really simple... (charsSinceLastUpdate=36) #import "CSMainController.h" @implementation CSMainController //global vars int *charsSinceLastUpdate = 0; NSString *myString = @"Hello world"; // - (void)applicationDidFinishLaunching:(NSNotification *)aNotification { ... } //other functions - (void)textDidChange:(NSNotification *)aNotification { NSLog(@"charsSinceLastUpdate=%i",charsSinceLastUpdate); if (charsSinceLastUpdate>=36) { // <- THIS line returns the error: Comparison between pointer and integer charsSinceLastUpdate=0; [statusText setStringValue:@"Will save now!"]; } else { charsSinceLastUpdate++; [statusText setStringValue:@"Not saving"]; } } //my functions - (void)showNetworkErrorAlert:(BOOL)showContinueWithoutSavingOption { ... } // @end Any help would be appreciated, thanks!

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  • Does correcting a value in an validation method mark the object as dirty?

    - by dontWatchMyProfile
    From the docs: If you change the input value in a validate:error: method, you must ensure that you only change the value if it is invalid or uncoerced. The reason is that, since the object and context are now dirtied, Core Data may validate that key again later. If you keep performing a coercion in a validation method, this can therefore produce an infinite loop. So when I modify a value in a validation method, the context gets dirtied? And the next time I save, the validation happens again - and when I change the value even if the validation is OK, then the context is again dirtied, and revalidated again - and I change the value, and Core Data validates, again, because the context is dirtied. And so on...for ever... is that right? Or did they try to say something different?

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  • Urllib's urlopen breaking on some sites (e.g. StackApps api): returns garbage results

    - by Edan Maor
    I'm using urllib2's urlopen function to try and get a JSON result from the StackOverflow api. The code I'm using: >>> import urllib2 >>> conn = urllib2.urlopen("http://api.stackoverflow.com/0.8/users/") >>> conn.readline() The result I'm getting: '\x1f\x8b\x08\x00\x00\x00\x00\x00\x04\x00\xed\xbd\x07`\x1cI\x96%&/m\xca{\x7fJ\... I'm fairly new to urllib, but this doesn't seem like the result I should be getting. I've tried it in other places and I get what I expect (the same as visiting the address with a browser gives me: a JSON object). Using urlopen on other sites (e.g. "http://google.com") works fine, and gives me actual html. I've also tried using urllib and it gives the same result. I'm pretty stuck, not even knowing where to look to solve this problem. Any ideas?

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  • How do I map a texture onto a Octahedron?

    - by Justin808
    I'm about to go mad. I cant for the life of me figure out texture coords. I have a Octahedron defined by the 8 triangles below. I want to map a texture of the earth on it. See the texture here: http://img37.imageshack.us/f/earthmap1k.jpg/ I would like the north pole at the top point and the south pole at the oposite point with the equator wrapped around the center points. Can someone show me the UVs for each point to map the texture please? 0, 0, 1 1, -1, 0 1, 1, 0 -1, 1, 0 0, 0, 1 1, 1, 0 0, 0, 1 -1, 1, 0 -1, -1, 0 1, -1, 0 0, 0, 1 -1, -1, 0 1, -1, 0 0, 0, -1 1, 1, 0 0, 0, -1 -1, 1, 0 1, 1, 0 0, 0, -1 -1, -1, 0 -1, 1, 0 0, 0, -1 1, -1, 0 -1, -1, 0

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  • Natural language processing and semantic

    - by laknath27
    i would like know how to identify the semantic of the user input in NLP. i made a ontology make a relationship.there are 3 categories in my ontology... accommodation, culture,location.i faced some problem with this, how to redirect the user input into the specific area of the ontology? eg: input --- trip to Canada ... then it redirect all the categories in my ontology. input --- culture in Canada .. then it redirect only the Culture in my ontology. can u show me the way :::: thanks ::

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  • Flash CS5 projects panel totally gone?

    - by Jesse
    So, I popped open up Flash CS5 just now, and I couldn't find my projects panel. I was working on a dual screen set up previously, so my windows were everywhere anyways (sans external). I switched over to a smaller screen workspace, and popped opened the projects panel. Oddly enough, the code snippets panel came up instead. So, I switched off the code snippets, and tried again. I've been trying different ways of opening this panel for about 15 minutes, and I'm totally stumped. Some thorough googling didn't present any relevant results, so, StackOverflow, I turn to you. Is this a known issue? is there a secret backdoor way to open this panel? Am I totally missing something?

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  • Which programme can burn the mts fils to DVD?

    - by liuyesi54
    Dear folks, I just bought a new Canon HF10 which saves video file in .MTS. Yesterday i had a family party,and i recorded it.i would like to burn the recorded files to DVD to send my families.i have tried to burn it with nero version,but it did not work. Please let me know which programme can burn the mts fils to DVD. THANKS.

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  • What is the "box model?"

    - by Chris
    During a recent interview for a front-end developer position I was asked what the box model was. I thought the interviewer was referring to testing (i.e. white box testing, black box testing). I was wrong. What is the box model, in reference to front-end development?

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  • Task Queue Java API

    - by user268515
    Hi when i started to work on Task queue concept i got struck on this line queue.add( DatastoreServiceFactory.getDatastoreService().getCurrentTransaction(), TaskOptions().url("/path/to/my/worker")); What will DatastoreServiceFactory do... How to redirect this page to another servlet.... in the url i gave .url("/myservlet") but it doesn't redirected to servlet Please say what should given in .url.Help me. Regards, sharun

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  • Including tax in total sale price.

    - by Frank Computer
    INFORMIX-SQL 7.3 Perform Screen: Suppose I have a customer who wants to pay a $100 (7% tax included), what logic can I use so that when the cashier clerk enters $100 in the tax included sale amount, it will calculate the sale price and tax so that it adds up to $100. I have the folllowing 3 field tags in my perform screen: sprice = transaction.sale_price; stax = transaction.sale_tax; stotal = transaction.sale_total; after editadd of transaction.sale_price ? ? ?

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  • Using UCMA to connect to 3CX?

    - by Rodney Burton
    Has anyone used Microsoft's UCMA 2.0 SDK to connect to 3CX's free IP PBX to add voice capabilities to their application? If so, does it work? What I am trying to accomplish is having a windows form app running on 2 or more computers, and each person can connect to another person and carry on a voice conversation using their headset connected to their computer. App is in C# w/ .NET3.5 SP1.

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  • Windows 7 DWM weirdness

    - by Max
    I'm looking to write a FOSS "Alt+Tab" replacement (window switcher) for Windows, since there are a few features I feel it's (still) lacking; but I'm noticing two quirks I can't seem to fix: #1. (Somewhat Unrelated) In the default Windows 7 window switcher, one computer allows left clicking on a thumbnail to focus the window; however on another, similarly specced computer, I have to use a right click. The only difference between these two fresh installs is the theme. Any ideas? #2. (Directly Related) In both the default Windows 7 window switcher and the DWM API output, minimized windows often have no thumbnail, and instead show only the taskbar. This has been a long running problem with the Windows API, and in the past I've seen the popular recommendation being "restore (un-minimize) the window, take a screenshot, then re-minimize" - but this is sloppy and causes flickering, etc. Has anyone done this successfully using the newer DWM API? If sharing code, I'd prefer C# syntax, but VB.NET will do as well. Thanks!

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  • Formating a date field in the Model (Codeigniter)

    - by Landitus
    Hi, I', trying to re-format a date from a table in Codeigniter. The Controller is for a blog. I was succesfull when the date conversion happens in the View. I was hoping to convert the date in the Model to have things in order. This is the Model: class Novedades_model extends Model { function getAll() { $this->db->order_by('date','desc'); $query = $this->db->get('novedades'); if($query->num_rows() > 0) { foreach ($query->result() as $row) { $data[] = $row; } } return $data; } } This is part of the controller $this->load->model('novedades_model'); $data['records'] = $this->novedades_model->getAll(); Here's the date conversion as it happens in the View. This is inside the posts loop: <?php foreach($records as $row) : ?> <?php $fdate = "%d <abbr>%M</abbr> %Y"; $dateConv = mdate($fdate, mysql_to_unix($row->date)); ?> <div class="article section"> <span class="date"><?php echo $dateConv ;?></span> ... Keeps going ... How can I convert the date in the Model? Can I access the date key and refactor it?

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  • dynamically create sitemap xml using php

    - by rekhasathvika
    Hi, I have created sitemap for my site using some reference code in the below link http://stackoverflow.com/questions/2747801/creating-an-xml-sitemap-with-php But I am getting error as XML Parsing Error: undefined entity Location: as my content is as follows << alt attribute and it says something like < loc http://www.example.com/700- & laquo;alt & raquo;-attributes-in-images.php< /loc Can anyone tell me how to get rid of this error.

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