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  • How to help Open Source Softwares?

    - by Rajan Walia
    I know basic C++ like about classes and other basic stuff what are the things which i need to know so that i can understand the source code of some advance open source projects and be able to make one too. Like if i read the code of vlc or some other projects I can't understand many things moreover i am just a beginner have not worked on even multi file programs so please suggest which are the books and what are the basic projects from where i can start.

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  • AppleScript to open URL in Safari crashes for Flash-based websites

    - by Mark
    I'm trying to open a URL in Safari. It works fine for websites without Flash embedded, but crashes Safari for Flash sites. Example (this WORKS): tell application "Safari" to open location "http://google.com" This CRASHES when Safari is not already running: tell application "Safari" to open location "http://grooveshark.com" Two things I noticed: Safari only crashes for websites with embedded Flash The script above only crashes if a new instance of Safari is created (i.e. Safari was not running before) From the second observation I assume that it could be a permission issue of some sort. Maybe the Safari instance launched from the AppleScript has a problem loading plugins?

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  • jena ontology api

    - by laknath27
    i'm new to jena and protege.i did some stuff with these. i have some problems:: 1) Do i need to use sparql query to get the ontology classes,subclasses,property and values? or can do it with owl-api? can u show me the way? 2) how to get the data property values? 3) how to i load the ontology that define in my local machine and access the classes ? thanks:::

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  • Flash ActionScript 2.0 problem with the object's _visible parameter

    - by GMan
    Hey guys, I've been trying to build something simple in Flash 8, and I stumbled across something weird I cannot explain: I have an object, and at some point of the program, I want it to be visible (it is invisible at first), so I write: _root.myObj._visible = true; _root.gameOver.swapDepths(_root.getNextHighestDepth()); //so it will be on the top and this works fine, the object becomes visible and etc. What I planned to happen next is that the user presses a button on that same object, and the object will go invisible: on(release) { trace(_root.myObj._visible); _root.myObj._visible = false; trace(_root.myObj._visible); _root.gotoAndPlay("three"); } The trace returns at first true and later on false, so the command works, but oddly the object stays visible, that's what I don't understand. Thanks everybody in advance.

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  • Using ClaimsPrincipalPermissionAttribute, how do I catch the SecurityException?

    - by Ryan Roark
    In my MVC application I have a Controller Action that Deletes a customer, which I'm applying Claims Based Authorization to using WIF. Problem: if someone doesn't have access they see an exception in the browser (complete with stacktrace), but I'd rather just redirect them. This works and allows me to redirect: public ActionResult Delete(int id) { try { ClaimsPrincipalPermission.CheckAccess("Customer", "Delete"); _supplier.Delete(id); return RedirectToAction("List"); } catch (SecurityException ex) { return RedirectToAction("NotAuthorized", "Account"); } } This works but throws a SecurityException I don't know how to catch (when the user is not authorized): [ClaimsPrincipalPermission(SecurityAction.Demand, Operation = "Delete", Resource = "Customer")] public ActionResult Delete(int id) { _supplier.Delete(id); return RedirectToAction("List"); } I'd like to use the declarative approach, but not sure how to handle unauthorized requests. Any suggestions?

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  • jQuery: why does my live() handler declaration error out when the analogous click() one doesn't?

    - by Jason
    I have the following in a javascript file (using jQuery as well): $(function(){ $('#mybutton').live('click',myObject.someMethod); }); var myObject = { someMethod: function() { //do stuff } }; I get a js error on pageload that says "myObject isn't defined". However, when I change the event handler in the doc.ready function to: $('#mybutton').live('click', function(){ myObject.someMethod(); }); it works! I have code structured like the first example all over my codebase that works. W T F??

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  • Exceptions using CruiseControl.NET

    - by Andy
    I recently updated to CC.NET 1.5 and I'm now getting some strange exceptions. On one project I get: - ThoughtWorks.CruiseControl.Core.CruiseControlException: Source control operation failed: svn: Can't create a character converter from native encoding to 'UTF-8' This happens when CC is checking a subversion repository for any mods. If I run the actual command line CC says is failing it works and returns an empty XML (there are no mods). Some other projects also fail to check mods with another "Source control operation failed" exception but no further info. Again the command is an "svn log" which when run from command line works ok. I'm using subversion 1.4.5 client side and my source repository exists on a separate box than my build server. Anyone got any ideas?

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  • Checkout multiple revision of one file in CVS repository

    - by Andrew
    Hi, To checkout I use the following command CVSROOT="/home/projects/stuff/" cvs co mywork with the mywork directory I have text files as well as pictures, i.e., looks something like this - paper.tex - pic1.jpg - pic2.jpg etc. In particular, I am interested in checking out all the version of paper.tex over time. Is there a way how I can check all revisions of this file out at once? Or which command can I use to see when revision have been made to this particular file? many thanks for your help, Andrew

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  • learn dbms online

    - by siva
    Hi I want to learn DBMS including the concepts of complex SQL writing and normalisation and other stuff. Can anyone please help me to find some useful online resources.....

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  • Are Cross Domain Flash Local Shared Objects (LSO aka Flash Cookie) possible

    - by user85155
    Hi, I found several solutions for creating Flash LSOs from JavaScript (for example: http://www.nuff-respec.com/technology/cross-browser-cookies-with-flash ) If Page (www.hostA.com/index.html) and the .swf file are from the same site, everything works fine. No I'm trying to load the page form www.hostA.com/index.html, which includes www.hostB.com/flashcookie.swf (different sites). But then I cannot read or store the LSO. I have tried several configurations (crossdomain.xml, Security.allowDomain("...") ), but nothing works. Is this kind of cross domain access to a LSO possible? Thanks -stephan

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  • perl Getopt::Long madness

    - by ennuikiller
    The following code works in one script yet in another only works if a specify the "--" end of options flag before specifying an option: my $opt; GetOptions( 'help|h' => sub { usage("you want help?? hahaha, hopefully your not serious!!"); }, 'file|f=s' => \$opt->{FILE}, 'report|r' => \$opt->{REPORT}, ) or usage("Bad Options"); In other words, the same code words in good.pl and bad.pl like so: good.pl -f bad.pl -- -f If I try bad.pl -f I get "unknown option:f" Anyone have any clue as to what can cause this behavior? Thanks in advnace!

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  • nyroModal Window on flash background

    - by Lowgain
    I've got a Flex App running at 100% width and 100% height. The embed code is: <script type="text/javascript"> var fVars = {}; fVars.wmode = "transparent"; //also tried "opaque" swfobject.embedSWF("/swf/app.swf", "app", "100%", "100%", "9.0.0", "expressInstall.swf", fVars); </script> <div class="app"></div> I've also got the nyroModal call, which is essentially $.nyroModalManual({ url: urlPath, wrap: {}, closeButton: "" }); The modal window I am trying to open in this case is a div with some text and another flash embed, which works. I've also got the app div's z-index to 0. In Firefox this looks fine, everything works. In Chrome however, nyroModal's fade-in/transparent overlay does not show up, and only the second swf is visible overtop the background flash. Am I missing anything here? Is this a known issue with Chrome?

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  • Is this asking too much of a browser?

    - by Matt Ball
    I'm embedding a large array in <script> tags in my HTML, like this (nothing surprising): <script> var largeArray = [/* lots of stuff in here */]; </script> In this particular example, the array has 210,000 elements. That's well below the theoretical maximum of 231 - by 4 orders of magnitude. Here's the fun part: if I save JS source for the array to a file, that file is 44 megabytes (46,573,399 bytes, to be exact). If you want to see for yourself, you can download it from my Dropbox. (All the data in there is canned, so much of it is repeated. This will not be the case in production.) Now, I'm really not concerned about serving that much data. My server gzips its responses, so it really doesn't take all that long to get the data over the wire. However, there is a really nasty tendency for the page, once loaded, to crash the browser. I'm not testing at all in IE (this is an internal tool). My primary targets are Chrome 8 and Firefox 3.6. In Firefox, I can see a reasonably useful error in the console: Error: script stack space quota is exhausted In Chrome, I simply get the sad-tab page: Cut to the chase, already Is this really too much data for our modern, "high-performance" browsers to handle? Is there anything I can do* to gracefully handle this much data? Incidentally, I was able to get this to work (read: not crash the tab) on-and-off in Chrome. I really thought that Chrome, at least, was made of tougher stuff, but apparently I was wrong... Edit 1 @Crayon: I wasn't looking to justify why I'd like to dump this much data into the browser at once. Short version: either I solve this one (admittedly not-that-easy) problem, or I have to solve a whole slew of other problems. I'm opting for the simpler approach for now. @various: right now, I'm not especially looking for ways to actually reduce the number of elements in the array. I know I could implement Ajax paging or what-have-you, but that introduces its own set of problems for me in other regards. @Phrogz: each element looks something like this: {dateTime:new Date(1296176400000), terminalId:'terminal999', 'General___BuildVersion':'10.05a_V110119_Beta', 'SSM___ExtId':26680, 'MD_CDMA_NETLOADER_NO_BCAST___Valid':'false', 'MD_CDMA_NETLOADER_NO_BCAST___PngAttempt':0} @Will: but I have a computer with a 4-core processor, 6 gigabytes of RAM, over half a terabyte of disk space ...and I'm not even asking for the browser to do this quickly - I'm just asking for it to work at all! ? *other than the obvious: sending less data to the browser

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  • iPhone: CALayer + rotate in 3D + antialias?

    - by Colin
    Hi all, An iPhone SDK question: I'm drawing a UIImageView on the screen. I've rotated it in 3D and provided a bit of perspective, so the image looks like it's pointing into the screen at an angle. That all works fine. Now the problem is the edges of the resulting picture don't seem to be antialiased at all. Anybody know how to make it so? Essentially, I'm implementing my own version of CoverFlow (yeah yeah, design patent blah blah) using quartz 3d transformations to do everything. It works fine, except that each cover isn't antialiased, and Apples version is. I've tried messing around with the edgeAntialisingMask of the CALayer, but that didn't help - the defaults are that every edge should be antialiased... thanks!

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  • Silverlight running in IE kiosk mode

    - by JimmySavile
    Hi, We are having a weird problem where by we are running a silveright application in IE8 kiosk mode, the shortcut is added to windows startup. The silverlight app runs on localhost. It all works fine until you reboot, IE displays "navigation to the webpage was canceled" when it loads. Yet the shortcut works fine, if you close IE and manually go into the startup folder and run the shortcut, or run the same shortcut from the desktop. I assume there is some sort of timing issue but have no idea what. Tried using 127.0.0.1 instead of localhost incase DNS hadn't been properly initialised at that point or something. Maybe an IIS initialisation problem? Anyone have any ideas? Thanks for your time

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  • Is it possible to port a Windows RT app to a Windows Phone app?

    - by balint
    Just recently released an application to the Windows Store, and I'm wondering if it is possible to "downgrade" it to Windows Phone 7.1 - until Windows Phone 8 will arrive. The real problem is with the async stuff, I've found the "Async Targeting Pack", but it requires Visual Studio 2012; however VS2012 doesn't work with the Phone SDK 7.0, 7.1. I'm not in the mood to install old and ugly Visual Studio 2010 on my brand new Windows 8 machine :) Does anyone know a workaround?

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  • Fuzzy string matching algorithm in Python

    - by Mridang Agarwalla
    Hi guys, I'm trying to find some sort of a good, fuzzy string matching algorithm. Direct matching doesn't work for me — this isn't too good because unless my strings are a 100% similar, the match fails. The Levenshtein method doesn't work too well for strings as it works on a character level. I was looking for something along the lines of word level matching e.g. String A: The quick brown fox. String B: The quick brown fox jumped over the lazy dog. These should match as all words in string A are in string B. Now, this is an oversimplified example but would anyone know a good, fuzzy string matching algorithm that works on a word level. Thanks in advance.

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  • Why can't I retrieve UIDeviceOrientation correctly while playing a movie in MPMoviePlayerController?

    - by Zelldweller
    Everything works fine while I'm not playing anything (I'm calling beginnotifications, etc, and using the orientation to rotate my view). But after I start playing with MPMoviePlayerController every time I try a... UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation]; ...orientation gets a UIDeviceOrientationUnknown. Any clue? When the movie stops everything works alright again. I need this orientation to rotate the player's window, because Im using Iphone OS 3.1 so I can't directly use the view property inside MPMovie player controller.

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  • C# VSTO: Coloring pivottable cells

    - by tomboz
    HI, I'm trying to make some code color a PivotTable. It works just fine coloring the cells it's supposed to, but if I refresh the table, all the colors disappear, as if the colors haven't been properly attached to the PivotTable. I have the following code (this is a snip from a larger code): myPivotTable.PivotSelect("'" + item["Name"].ToString() + "'[All;Total]", XlPTSelectionMode.xlDataAndLabel, true); ((Range)Globals.ThisWorkbook.Application.Selection).Interior.Color = 15962653; I've tried doing a macro in Excel in VB, and when it runs, it work works perfectly, so I don't understand why the C# VSTO won't work... ActiveSheet.PivotTables("PivotTable1").PivotSelect "'ItemName'[All;Total]", xlDataAndLabel, True Selection.Interior.Color = 15962653 Help is much appreciated :)

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  • NSTimer timestamp timeinterval question

    - by okami
    I have the following code: [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(timerCount:) userInfo:nil repeats:YES]; -(void)timerCount:(NSTimer *)timer { NSTimeInterval dt = [timer timeInterval]; // do something } The NSTimeInterval I got will be 0.5, the time interval I've put on scheduledTimerWithInterval, this means the timerCount will be called each 0.5 seconds. But I now that there are some stuff as timeStamps, and I want to know if the NSTimer will call the timerCount method in PRECISELY 0.5 seconds each time.

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  • Performance using T-SQL PIVOT vs SSIS PIVOT Transformation Component.

    - by Nev_Rahd
    Hi I am in process of building Dimension from EDW (source), wherein I need to pivot columns of source to load Dimension. Currently most of the pivoting stuff am doing is by using T-SQL PIVOT which further get used in my SSIS package to merge with Dim table This pivoting can also be achieved by SSIS PIVOT Transformation component. In regards to Performance which approach would be the best? Thanks

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  • Interchanging presentModalViewController and pushViewController

    - by Neffster
    I am using a sample ViewController that is displayed in the sample program as a presentModalViewController. However, I want to use pushViewController on the UIViewController instead. The problem is that when I switch to pushViewController, the ViewController no displays properly. Functions in the ViewController are called, but I don't see anything. I change back to presentModalViewController and everything works. The question is what do I need to do to make pushViewController work? FCVC *fcVC; NSArray *array = [[NSBundle mainBundle] loadNibNamed:@"fcVC" owner:self options:nil]; fcVC = [array objectAtIndex:0]; A. [self presentModalViewController:fcVC animated:YES]; // "WORKS" or B. [self.navigationController pushViewController:fcVC animated:YES]; // "Doesn't work

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  • How to identify WHICH NSURLConnection did finish loading when there are multiple ones?

    - by RexOnRoids
    Multiple NSURLConnections being started (in a single UIViewController) to gather different kinds of data. When they return (-connectionDidFinishLoading) I wanna do stuff with the data, depending on the type of data that has arrived. But one prob, HOW DO I KNOW WHICH NSURLConnection returned? I need to know so I can take action specific to the type of data that came. (Eg. display a twitter update if it was the twitter xml data)(Eg. display an image if it was a photo) How do people usually solve this?

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  • Can I create a custom roleprovider through a WCF service?

    - by RJ
    I have a web application that accesses a database through a wcf service. The idea is to abstract the data from the web application using the wcf service. All that works fine but I am also using the built in roleprovider using the SqlRoleManager which does access the aspnetdb database directly. I would like to abstract the roleprovider by creating a custom roleprovider in a wcf service and then accessing it through the wcf service. I have created the custom role provider and it works fine but now I need to place it in a wcf service. So before I jump headlong into trying to get this to work through the WCF service, I created a second class in the web application that accessed the roleprovider class and changed my web config roleprovider parameters to use that class. So my roleprovider class is called, "UcfCstRoleProvider" and my web.config looks like this: <roleManager enabled="true" defaultProvider="UcfCstRoleProvider"> <providers> <add name="UcfCstRoleProvider" type="Ucf.Security.Wcf.WebTests.UcfCstRoleProvider, Ucf.Security.Wcf.WebTests" connectionStringName="SqlRoleManagerConnection" applicationName="SMTP" /> </providers> </roleManager> My class starts like this: public class UcfCstRoleProvider : RoleProvider { private readonly WindowsTokenRoleProvider _roleProxy = new WindowsTokenRoleProvider(); public override string ApplicationName { get { return _roleProxy.ApplicationName; } set { _roleProxy.ApplicationName = value; } } As I said, this works fine. So the second class is called BlRoleProvider that has identical properties and parameters as the roleprovide but does not implement RoleProvider. I changed the web.config to point to this class like this: <roleManager enabled="true" defaultProvider="BlRoleProvider"> <providers> <add name="UcfCstRoleProvider" type="Ucf.Security.Wcf.WebTests.BlRoleProvider, Ucf.Security.Wcf.WebTests" connectionStringName="SqlRoleManagerConnection" applicationName="SMTP" /> </providers> </roleManager> But I get this error. "Provider must implement the class 'System.Web.Security.RoleProvider'." I hope I have explained well enough to show what I am trying to do. If I can get the roleprovider to work through another class in the same application, I am sure it will work through the WCF service but how do I get past this error? Or maybe I took a wrong turn and there is a better way to do what I want to do??

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