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Articles indexed Sunday June 13 2010

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  • Memory ReAllocation

    - by davispuh
    What is the right and best way to reallocate memory? for example I allocate 100 bytes with WinAPI function HeapAlloc then I fill 100 bytes of that memory with some data and now I want to add more new data at end of previous... What Should I do? Make a new allocation with more bytes and then copy old+new to new location and free old memory? Or there is some way to allocate new memory at end of old data and then copy only new data?

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  • Redirecting search results into an ASP.NET page

    - by Arjun Vasudevan
    I've an ASP.NET page with a textbox and a option from user of the following choices: Wikipedia, Google, Dictionary.com, Flickr, Google images. The user enters a word(s) in the textbox and selects a choice among the following. Depending on the choice select by the user I wish to return the following. Wikipedia: Return the content and link to the page corresponding to the topic about the word. Google: Return the top 10 results of google search for this word. Flickr: Return a few images atmost 10 images from flickr search GoogleImage: Return a few images from google image search. Dictionary: Return the meaning of the word. How can I do that?

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  • 1120: Why can't it access the variable?

    - by Oden
    I'm new at as3, maybe thats the reason why i don't understand, why the setInterval causes an error. <mx:Script> <![CDATA[ import flash.utils.setInterval; import mx.controls.Alert; [Bindable] public var MyInt:int = 500; setInterval(function():void{ ++MyInt; },1000); ]]> </mx:Script> I have a label where the value of MyInt gets visible, the bind works perfect, i've tested it several ways, and i i create a button it grows the number, but if i use the setInterval function i get an error: Access of undefined property myInt. Why? What does cause this? Please explain it, so I can avoid errors like this. Thanks

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  • Problem with writing mobilesubstrate plugins for iOS

    - by overboming
    I am trying to hooking message sending for iOS 3.2, I implement my own hook on a working ExampleHook program I find on the web. But my hook apparently caused segmentation fault everytime it hooks and I don't know why. I want to hook to [NSURL initWithString:(NSString *)URLString relativeToURL:(NSURL *)baseURL; and here is my related implementation static id __$GFWInterceptor_NSURL_initWithString2(NSURL<GFWInterceptor> *_NSURL, NSString *URLString, NSURL* baseURL){ NSLog(@"We have intercepted this url: %@",URLString); [_NSURL __HelloNSURL_initWithString:URLString relativeToURL:baseURL]; establish hook Class _$NSURL = objc_getClass("NSURL"); MSHookMessage(_$NSURL, @selector(initWithString:relativeToURL:), (IMP) &__$GFWInterceptor_NSURL_initWithString2, "__HelloNSURL_"); original method declaration - (void)__HelloNSURL_initWithString:(NSString *)URLString relativeToURL:(NSURL *)baseURL; and here is my gdb backtrace Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_INVALID_ADDRESS at address: 0x74696e71 0x335625f8 in objc_msgSend () (gdb) bt 0 0x335625f8 in objc_msgSend () 1 0x32c05b1a in CFStringGetLength () 2 0x32c108a8 in _CFStringIsLegalURLString () 3 0x32b1c32a in -[NSURL initWithString:relativeToURL:] () 4 0x000877c0 in __$GFWInterceptor_NSURL_initWithString2 () 5 0x32b1c220 in +[NSURL URLWithString:relativeToURL:] () 6 0x32b1c1f4 in +[NSURL URLWithString:] () 7 0x3061c614 in createUniqueWebDataURL () 8 0x3061c212 in +[WebFrame(WebInternal) _createMainFrameWithSimpleHTMLDocumentWithPage:frameView:withStyle:editable:] () and apparently it hooks, but there is some memory issue there and I can't find anything to blame now

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  • Checking for multiple images loaded

    - by Stanni
    Hi, I'm using the canvas feature of html5. I've got some images to draw on the canvas and I need to check that they have all loaded before I can use them. I have declared them inside an array, I need a way of checking if they have all loaded at the same time but I am not sure how to do this. Here is my code: var color = new Array(); color[0] = new Image(); color[0].src = "green.png"; color[1] = new Image(); color[1].src = "blue.png"; Currently to check if the images have loaded, I would have to do it one by one like so: color[0].onload = function(){ //code here } color[1].onload = function(){ //code here } If I had a lot more images, Which I will later in in development, This would be a really inefficient way of checking them all. How would I check them all at the same time?

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  • How to add an item to the top of a dynamic list

    - by user181318
    Like the title states, does anyone out there have a clear way to implement this type of functionality? Example: If you go to http://weewar.com, in their front page you noticed an ajax module that updates every second. However, all of the new items are added to the top of the list. My question is around that very same functionality. Does anyone have an easy and clear idea as to how one would implement this functionality? So far I have a method that initially creates the list, then another method is called in an interval that pulls the most recent data from the server.. However, I'm stuck with, how can I add the new dynamic node to the top of the list. If you can guide me to where I can find this information or give me an idea as to how I can implement this I will be very happy and grateful :) Thanks in advanced.

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  • How to remove music/videos DRM protection and convert to Mobile Devices such as iPod, iPhone, PSP, Z

    - by tonywesley
    The music/video files you purchased from online music stores like iTunes, Yahoo Music or Wal-Mart are under DRM protection. So you can't convert them to the formats supported by your own mobile devices such as Nokia phone, Creative Zen palyer, iPod, PSP, Walkman, Zune… You also can't share your purchased music/videos with your friends. The following step by step tutorial is dedicated to instructing music lovers to how to convert your DRM protected music/videos to mobile devices. Method 1: If you only want to remove DRM protection from your protected music, this method will not spend your money. Step 1: Burn your protected music files to CD-R/RW disc to make an audio CD Step 2: Find a free CD Ripper software to convert the audio CD track back to MP3, WAV, WMA, M4A, AAC, RA… Method 2: This guide will show you how to crack drm from protected wmv, wma, m4p, m4v, m4a, aac files and convert to unprotected WMV, MP4, MP3, WMA or any video and audio formats you like, such as AVI, MP4, Flv, MPEG, MOV, 3GP, m4a, aac, wmv, ogg, wav... I have been using Media Converter software, it is the quickest and easiest solution to remove drm from WMV, M4V, M4P, WMA, M4A, AAC, M4B, AA files by quick recording. It gets audio and video stream at the bottom of operating system, so the output quality is lossless and the conversion speed is fast . The process is as follows. Step 1: Download and install the software Step 2: Run the software and click "Add…" button to load WMA or M4A, M4B, AAC, WMV, M4P, M4V, ASF files Step 3: Choose output formats. If you want to convert protected audio files, please select "Convert audio to" list; If you want to convert protected video files, please select "Convert video to" list. Step 4: You can click "Settings" button to custom preference for output files. Click "Settings" button bellow "Convert audio to" list for protected audio files Click "Settings" button bellow "Convert video to" list for protected video files Step 5: Start remove DRM and convert your DRM protected music and videos by click on "Start" button. What is DRM? DRM, which is most commonly found in movies and music files, doesn't mean just basic copy-protection of video, audio and ebooks, but it basically means full protection for digital content, ranging from delivery to end user's ways to use the content. We can remove the Drm from video and audio files legally by quick recording.

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  • How to setup prawn on heroku when installed as a git submodule

    - by brad
    I have a rails app that I am trying to deploy to heroku. This app generates pdfs using prawn. I installed prawn as a git submodule rather than as a gem as this is what is recommended on the prawn website (here). This has not worked well with heroku so far though. As stated on heroku's application constraints page submodules are not supported so I followed their instructions to track the submodule in the main project and tried again. This has not worked and when I access my application I get the following error: App failed to start An error happened during the initialization of your app. This may be due to a typo, wrong number of arguments, or calling a function that doesn’t exists. Check the stack trace below for specific details. Make sure the app is working locally in production mode, by running it with RAILS_ENV (for Rails apps) or RACK_ENV (for Sinatra or other rack apps) set to production. e.g. RAILS_ENV=production script/server. Original Error /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': /disk1/home/slugs/208590_03c9c22_67f5/mnt/app/controllers/invoices_controller.rb:37: syntax error, unexpected ')' (SyntaxError) ).to_pdf(@invoice) (and then a whole lot more that I'll spare you from) The .to_pdf function described in the last line is called in a controller in exactly the way described in the prawn how-to that I linked to above so my interpretation of the error message is that prawn is not being installed/detected. Does anyone know how I can address this? I'm new to heroku so have little idea how to approach this. Is the submodule approach for prawn dead in the water from the get-go? Do I need to install it as a gem instead. I'd rather keep it as a submodule just because that works for now and I don't want to break it.

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  • passing a parameter from an other model on ruby

    - by MAGE
    I'm very newbie in ruby and need your help. I must save a "Topic" and make it like this : @topic = Topic.new(params[:topic]) But I would like to pass an other information to this topic. It has a field "community_id" that link it to a community. The logged user has this information on his table. How can I pass the "community_id" from the logged user to the "community_id" of the "topic" created ? thx for your help

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  • Need help with jQuery/AJAX call in Safari/Mac

    - by protohominid
    I've got something that works perfectly in FF and MSIE but it's not working properly in Safari. It's a form with selects that get updated via AJAX/jQuery from a MySQL DB. In Safari, when you select the first item, it correctly loads the options for the next select menu; however, when you choose one of those (which loads new options in a subsequent select menu), the whole form resets and is broken from that point on. Does anyone know of a Safari bug that would cause this? Here's the JS: $(document).ready(function(){ $("#searchForm select").change(updateSearchForm); }); function updateSearchForm() { $.ajax({ url: '/elements/search_form.php?ajax=true', data: $('#searchForm').serialize(), error:function(xhr,err){ alert("readyState: "+xhr.readyState+"\nstatus: "+xhr.status); alert("responseText: "+xhr.responseText); }, success: function(data) { $("#searchForm").html(data); $("#searchForm select").change(updateSearchForm); } }); } I can post the relevant PHP/HTML for the form, but it's lengthy. I'm relatively new to JS so I'm not sure where to start debugging this... TIA

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  • how to demonstrate that a protocol is certain with those specifications.

    - by kawtousse
    Hi every one, we have 4 persons A, B, C and D witch want to know the averge of their salary SA SB SC SD but no one wants that the others know his salary. For that they use this protocol: A-B: [N+SA ]KB B-C:[N+SA+SB]KC C-D:[N+SA+SB+SC]KD D-A:[N+SA+SB+SC+SD]KA where the notation [m]KY represents the message x crypted xith the public key of y Is this protocol certain. can we trust it. want you please give me justification. thanks for help.

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  • Display a flash message for a specific loggedin user upon receiving request.

    - by ShenoudaB
    Dears, how can i trigger a prompt (or flash message with links) display (notifying) for one of the logged in agent (specific agent screen) on my web application when receiving a request from a client. using rails and jquery. as my application is serving a call center, and the my client request ... when a call coming to the system a prompt appears to an agent this call dedicated to with some info from the call.

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  • Hosting WCF service in IIS 7 (WAS) with net.tcp binding on TWO tcp ports

    - by Yuri
    By default IIS 7 Web site has net.tcp binding with "808:" binding information string. If i add another net.tcp binding with "xxx:" exception occurs: This collection already contains an address with scheme net.tcp. There can be at most one address per scheme in this collection. Parameter name: item How can i solve this problem and listen my service at TWO ports?

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  • FaultException<T>() exception thrown by the service is not caught by the client catch(FaultException

    - by Ashish Gupta
    Ok, I know I am missing something here. I have the following operation contract: public double DivideByZero(int x, int y) { if (y == 0) { throw new FaultException<ArgumentException> (new ArgumentException("Just some dummy exception") ,new FaultReason("some very bogus reason"), new FaultCode("007")); } return x / y; } And following is taken from the client:- Console.WriteLine("Enter the x value"); string x = Console.ReadLine(); Console.WriteLine("Enter the Y value"); string y = Console.ReadLine(); try { double val = client.DivideByZero(Convert.ToInt32(x), Convert.ToInt32(y)); Console.WriteLine("The result is " + val.ToString()); } catch(FaultException<ArgumentException> exp) { Console.WriteLine("An ArgumentException was thrown by the service "+ exp.ToString()); } catch (Exception exp) { Console.WriteLine(exp.ToString()); } In the above case catch(FaultException exp) (the first catch block with ArgumentException in the client code) block does not get executed. However, when I remove ArgumentException to have catch(FaultException exp), the same catch block gets executed. I am not sure about this as I am throwing FaultException from my operation contract. Am I missing anything here. Appreciate your help, Ashish

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  • Good book for Flex 4?

    - by John Isaacks
    I read the O'Really Book: Programming Flex 3 and I thought it was awesome. I am now migrating to Flex 4 and wanted to read a great book for Flex 4. There are many Flex 4 books out there and I really just want to read 1 to get me up and running fast. So if anyone can share/recommend some books that would be great!

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  • Boost Test dynamically or statically linked?

    - by Halt
    We use Boost statically linked with our app but now I wan't to use Boost Test with an external test runner and that requires the tests themselves to link dynamically with Boost.Test through the use of the required BOOST_TEST_DYN_LINK define. Is this going to be a problem or is the way Boost Test links completely unrelated to the way the other Boost libraries are linked? Thx.

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  • Unreachable, existing variable

    - by Oden
    I'm new at as3, maybe thats the reason why i don't understand, why the setInterval causes an error. <mx:Script> <![CDATA[ import flash.utils.setInterval; import mx.controls.Alert; [Bindable] public var MyInt:int = 500; setInterval(function():void{ ++MyInt; },1000); ]]> </mx:Script> I have a label where the value of MyInt gets visible, the bind works perfect, i've tested it several ways, and i i create a button it grows the number, but if i use the setInterval function i get an error: Access of undefined property myInt. Why? What does cause this? Please explain it, so I can avoid errors like this. Thanks

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  • Real Time Sound Captureing J2ME

    - by Abdul jalil
    i am capturing sound in J2me and send these bytes to remote system, i then play these bytes on remote system.five second voice is capture and send to remote system. i get the repeated sound again .i am making a sound messenger please help me where i am doing wrong i am using the follown code . String remoteTimeServerAddress="192.168.137.179"; sc = (SocketConnection) Connector.open("socket://"+remoteTimeServerAddress+":13"); p = Manager.createPlayer("capture://audio?encoding=pcm&rate=11025&bits=16&channels=1"); p.realize(); RecordControl rc = (RecordControl)p.getControl("RecordControl"); ByteArrayOutputStream output = new ByteArrayOutputStream(); OutputStream outstream =sc.openOutputStream(); rc.setRecordStream(output); rc.startRecord(); p.start(); int size=output.size(); int offset=0; while(true) { Thread.currentThread().sleep(5000); rc.commit(); output.flush(); size=output.size(); if(size0) { recordedSoundArray=output.toByteArray(); outstream.write(recordedSoundArray,0,size); } output.reset(); rc.reset(); rc.setRecordStream(output); rc.startRecord(); }

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  • Unable to relate two MySQL tables (foreign keys)

    - by KPL
    Hello people, Here's my USER table CREATE TABLE IF NOT EXISTS `users` ( `id` int(11) NOT NULL AUTO_INCREMENT, `username` varchar(100) NOT NULL, `expiry` varchar(6) NOT NULL, `contact_id` int(11) NOT NULL, `email` varchar(255) NOT NULL, `password` varchar(100) NOT NULL, `level` int(3) NOT NULL, `active` tinyint(4) NOT NULL DEFAULT '1', PRIMARY KEY (`id`,`email`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ; And here's my contact_info table CREATE TABLE IF NOT EXISTS `contact_info` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(255) NOT NULL, `email_address` varchar(255) NOT NULL, `company_name` varchar(255) NOT NULL, `license_number` varchar(255) NOT NULL, `phone` varchar(30) NOT NULL, `fax` varchar(30) NOT NULL, `mobile` varchar(30) NOT NULL, `category` varchar(100) NOT NULL, `country` varchar(20) NOT NULL, `state` varchar(20) NOT NULL, `city` varchar(100) NOT NULL, `postcode` varchar(50) NOT NULL, PRIMARY KEY (`id`,`email_address`), ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ; The system uses username to login users.I want to modify it in such a way that it uses email for login. But there's no email_address in users table. I have added foreign key - email in user table(which is email_address in contact_info). How should I query database?

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  • Wordpress : display all articles of a month on one page

    - by Jérôme
    I would like to change the default behavior of Wordpress regarding the number of articles displayed on a same page to be the following : when displaying the home page, the 10 most recent articles should be displayed, 10 being the setting which can be changed through the admin panel (posts_per_page) when displaying the articles of a specific month (given through the URL like this : ?m=200906&order=ASC, I'd like to display on the same page all articles of this month (in other words, I don't want to have to browse through articles using previous entries or next entries. EDIT : I forgot something else I'd like to change : On the page where all articles of the specified month are displayed, I would like to display the comments for each article. Is this possible to do ? How ?

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  • What's the best way to run Wordpress on the same domain as a Rails application?

    - by Brian Deterling
    I've got a standard Rails app with Nginx and Mongrel running at http://mydomain. I need to run a Wordpress blog at http://mydomain.com/blog. My preference would be to host the blog in Apache running on either the same server or a separate box but I don't want the user to see a different server in the URL. Is that possible and if not, what would you recommend to accomplish the goal?

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