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• recaptcha still submits form when one word invalid

  - by luckytaxi

  Um so I was in for a little bit of a surprise tonight. I spent a good 20 mins trying to figure out why I was able to submit a form knowing that what I entered into the recaptcha field was invalid. Is it true that you don't need to input the exact words it displays? If it shows me two words and I misspelled one of the words, I still pass validation? Same goes if "hello world" and I input "hell man" it still works.

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• Adobe Air Debugger not visible

  - by Chin

  Have a little conundrum, when I debug my air app. It goes through the build process and seemingly launches. I can see the process in windows task manager, but can not see the actual application. Kind of strange I know. If anyone has had the same problem and can offer a shortcut to success, I'd much appreciate a pointer. Thanks

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• Cactus versus mock objects (jMock, Easy mock)

  - by Thomman

  I'm little confused with Cactus and mock objects (jMock, Easy mock). Could anyone please answer the following questions? When to use Cactus for testing? When not to use Cactus for testing? When to use mock objects for testing? When not to use mock objects for testing?

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• Apache: get client socket descriptor from request_rec?

  - by Mark Harrison

  I would like to call sendfile() to send some data to the client with as little overhead as possible. Given an Apache struct request_rec, how can I get the fd associated with the client socket?

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• Div positioning on a canvas with arrows bindings

  - by ideotop

  I'm searching for a little piece of javascript that can attach to a div (in data-x data-y attributes for example) the x,y coordinates of a draggable div. And then be able to draw arrows between them (using a data-targetid attribute?). If the solution can look like a simple version of graphview, jsPlumb or vizster but without the complicated library, and only in javascript/html

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• What is html5 canvas?

  - by Dan

  I'm a little confused to what html5 canvas is. I've been told it is javascript, but it seems to be a much bigger deal? What makes it different than javascript? Why is it so amazing? Does it do other things than javascript? Thanks, Dan

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• Are wrapper classes banned in the iPhone OS Developer Agreement?

  - by barfoon

  Hey everyone, I am a little confused after reading this thread on the revisions to the iPhone Developer Agreement. While it lists the languages that are permitted, I don't understand what classifies as falling under what is banned. Does this include wrapper classes? What if the code is written in Objective C but is not an official Apple class/library? I'm wondering about things like: Three20 from Facebook SQLite Wrappers such as this one Charting / Graphing Libraries If anyone could clarify this, I'd greatly appreciate it.

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• Fixing VBSCRIPT inaccurate mathematical results due to rounding

  - by jay

  Try running this in a .VBS file MsgBox(545.14-544.94) You get a neat little answer of 0.199999999999932! This rounding issue also occurs unfortunately in Sin(2 * pi) since VB can only ever see the (user defined) variable pi as accurate as 3.14159265358979. Is rounding it manually (and loosing accuracy) the only way to improve the result? What is the most effective way of dealing with this kind of problem?

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• Register an Interceptor with Castle Fluent Interface

  - by Quintin Par

  I am trying to implement nhibernate transaction handling through Interceptors and couldn’t figure out how to register the interface through fluent mechanism. I see a Component.For<ServicesInterceptor>().Interceptors but not sure how to use it. Can someone help me out? This example seemed a little complex.

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• Beans, Lists and JSP

  - by Luigi 1982

  Hi at All I have a little question... On my JSP page I have a List of beans. I want to extract a sublist of beans with a specific property (Ex. all Horror books). Can Apache Beanutils help me? Thanks in advance...

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• Fixed point math in c#?

  - by x4000

  Hi there, I was wondering if anyone here knows of any good resources for fixed point math in c#? I've seen things like this (http://2ddev.72dpiarmy.com/viewtopic.php?id=156) and this (http://stackoverflow.com/questions/79677/whats-the-best-way-to-do-fixed-point-math), and a number of discussions about whether decimal is really fixed point or actually floating point (update: responders have confirmed that it's definitely floating point), but I haven't seen a solid C# library for things like calculating cosine and sine. My needs are simple -- I need the basic operators, plus cosine, sine, arctan2, PI... I think that's about it. Maybe sqrt. I'm programming a 2D RTS game, which I have largely working, but the unit movement when using floating-point math (doubles) has very small inaccuracies over time (10-30 minutes) across multiple machines, leading to desyncs. This is presently only between a 32 bit OS and a 64 bit OS, all the 32 bit machines seem to stay in sync without issue, which is what makes me think this is a floating point issue. I was aware from this as a possible issue from the outset, and so have limited my use of non-integer position math as much as possible, but for smooth diagonal movement at varying speeds I'm calculating the angle between points in radians, then getting the x and y components of movement with sin and cos. That's the main issue. I'm also doing some calculations for line segment intersections, line-circle intersections, circle-rect intersections, etc, that also probably need to move from floating-point to fixed-point to avoid cross-machine issues. If there's something open source in Java or VB or another comparable language, I could probably convert the code for my uses. The main priority for me is accuracy, although I'd like as little speed loss over present performance as possible. This whole fixed point math thing is very new to me, and I'm surprised by how little practical information on it there is on google -- most stuff seems to be either theory or dense C++ header files. Anything you could do to point me in the right direction is much appreciated; if I can get this working, I plan to open-source the math functions I put together so that there will be a resource for other C# programmers out there. UPDATE: I could definitely make a cosine/sine lookup table work for my purposes, but I don't think that would work for arctan2, since I'd need to generate a table with about 64,000x64,000 entries (yikes). If you know any programmatic explanations of efficient ways to calculate things like arctan2, that would be awesome. My math background is all right, but the advanced formulas and traditional math notation are very difficult for me to translate into code.

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• Actionscript-3 random numbers between max and min...

  - by Patrick

  hi, I'm generating a random number between min and max with this code: return min + (max - min) * Math.random(); And it works. However, the random numbers are very little usually between "1 or 3" even if the max is 80. How can I better distribute the random numbers over all range ? thanks

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• ie7 z-index problem

  - by rezna

  Hi, I've isolated a little test case of IE7's z-index bug, but don't know how to fix it. Have been playing with z-indeces all day long but it didn't. If someone knows, what to do about it, pls help ;) The test case is located here - http://upload.rezna.info/z-index-test.html The problem is, that in IE7 the second textbox is placed over the red list (suggest box). Thx, rezna

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• edit files in unix

  - by Niklas

  Hi, I started to work in unix for couple of weeks ago and can very little about unix. Everytime I edit a file, a temp file~ appears in the filesystem. What does this mean? Can I just remove all these files? What can I do for removing these files automaticaly everytime I close the original file? /Niklas

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• [C#] WebClient construction overhead

  - by Barguast

  I have a client which makes a limited number of concurrent web requests. I use WebClient for this purpose. I currently have a pool of WebClient-s which I create once and use whichever one is idle. This approach is becoming a little cumbersome though, and I'm wondering if there is any benefit to having a collection of pre-constructed WebClient instances, or if creating them on the fly wouldn't be too much trouble?

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• Clear cache with greasemonkey

  - by Paul

  I have a web application running in a kiosk, which is set up with greasemonkey so that we can customize little things about the application and ensure the customizations only occur at the kiosk. I have been digging through the GM api hoping that it would have some functionality to affect browser settings, but alas it looks like it only affects pages running in the browser. Is there a way for me to tell the browser to clear it's cache when a certain event happens in the application?

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• Android Download Intent

  - by Isaac Waller

  Hello, I was wondering what is the intent for downloading URLs? In the browser, it will download stuff with a little notification icon. I was wondering if I can use that intent (and what it is). Thanks, Isaac Waller

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• Crossbrowser JS...

  - by s4v10r

  Hi there all :) Made this nice little loop for hiding and showing div's, works as a charm in firefox and opera, but IE, safari and chrome say's no.... So my question is; why? function theme(nr){ document.getElementById(nr).style.display = "block"; for (i = 0;i <= 28; i++) { if (i != nr) { document.getElementById(i).style.display = "none"; } } } Thanx:)

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• Android - incremental status bar notification icon

  - by DroidIn.net

  You know what I'm talking about: for example when you get multiple new emails the notification icon in the status bar is augmented with a little red circle that contains number of unread mails. Twitroid has the same icon. Any idea how it's done? I don't think (or so I hope) there are 10000 similar icons. Is this red circle generated and overlaid the notification icon? If so - any code snippets will be much appreciated.

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• Which guru would you interview in a virtual bonus chapter of "coders at work" book?

  - by systempuntoout

  I've really enjoyed reading Peter Siebel's Coders at work book. At the end of the last chapter (Don Knuth), i tought that the interviews selection was good but a little bit too old-school oriented. So, in your virtual 16th chapter, which guru would you interview? In my 16th chapter, i would be amazed to read an interview of John Carmack.

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• Android Webkit: Absolutely positioned elements don't respect z-index

  - by cpharmston

  Nasty little bug, this one. As illustrated in Android ticket 6721, the Android browser seems to not respect z-index when absolutely positioned elements are laid over the top of <a> or <input> tags. I am desperate for any sort of workaround. Has anybody conquered this one before? Thanks in advance!

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• Ruby Canvas (GUI)

  - by Eugene

  Hi dear community! I need draw some lines/circles/rect/etc from ruby into something like canvas. I tried wxRuby and fxRuby but they are have no good examples to draw simple lines. Just tried to install qtruby on Windows and its fall cause of some number of errors. So: 1) Which API for ruby to draw on canvas I need? 2) Give me a little sample of it (full code please)? Sincerely Eugene

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• tweepy documentation

  - by andy

  Hi everybody I just began working on a little twitter-app using tweepy. is there any kind of useful (and complete) documentation for tweepy? I googled like hell but didn't find anything. greetings, Andy

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• Pretty-print HTML5

  - by blinry

  Is there a command line program that pretty-prints (that is, indents, adds line breaks to) HTML5 code? tidy does too much for me (heck, it alters my doctype!), vim too little. What do you use to make your HTML5 code look beautiful?

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• Starting memory allocation for JVM.

  - by C. Ross

  I'm beginning use the -Xmx option on the java command to allow my processes to use a little more memory (256Mb, though I think I'm currently using less than 128Mb). I've also noticed the -Xms option for starting memory, with a default value of 2Mb. What should I set this value to and why? Reference: Java

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