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• what is duck typing?

  - by ashish yadav

  I recently read an article about duck-typing.It said about calling functions of different classes using object of any class. Is it true?And how will the compiler do it on runtime? I apologize if i am not clear.But it really fascinates me , if we could do it dynamically. So if u people got any idea.I am all ears. thank you!! how will the function…

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• Restore iPod Touch

  - by Jason

  Ok.... So I'm part of the iOS developer program and downloaded iOS 6.0 Beta to my iPod Touch. But, I was having troubles getting XCode Beta to run so I tried to downgrade back to the current 5.1.1. Halfway through the downgrade, the process encountered an error. Now my iPod won't boot. I tried restoring it in iTunes, but I think it's trying to…

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• C++ Typing and OOP child classes

  - by Zack

  I'm a bit confused: If I have a base class A, and a class B which extends A, can a variable of the type A hold a value of the type B and vice versa? If yes, why? Aren't they completely different even if B is derived from A? How about type-safety? If this is possible, what things do I have to mind when taking use of this? How would this…

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• is the AOC e2239fwt supported for multi touch on any ubuntu distro?

  - by HybriDPjT

  as the title says i have the e2239fwt monitor and ive tried ubuntu 10.04, 10.10, 11.04, 12.04 and now 13.04 and i cant get it to work. i should state that the single point touch seems to work ok but thats all. ive already tried looking and found no answers so here i am asking the peeps in the know :) i am currently running 13.04 and…

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• Low-level 10-finger multi-touch data on the Nexus 7?

  - by Croad Langshan

  I'm considering getting a Nexus 7 to do some multi-touch development on Ubuntu in the run-up to 13.04 (i.e., now :-). What APIs, /dev files, or protocols are available, or could be made available with not too much work on my part? What data is available from the device? The data I want to get my hands on is -- if I can -- the same…

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• iPod touch has extremely slow wifi, drops packets - only on my router

  - by mskfisher

  I just purchased an iPod Touch. I am having a lot of trouble with its speeds on my Tenda W311R, but it has no speed problems on my neighbor's Netgear router. It will connect and authenticate to my network, but the Speed Test app from speedtest.net shows rates near 20-50 kbps. If I run the speed test immediately after powering the…

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• How do I fully reload my Sencha Touch App when tapping 'refresh'?

  - by torr

  My list view layout is similar to Pinterest, with absolutely positioned blocks. Unfortunately, this seems to require a full re-initialization at refresh. If reload only the store (as below) the new blocks are incorrectly positioned. How do I reload the app when the user clicks on refresh? This is my View: …

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• Android beginner: Touch events in android gridview

  - by jja

  I am using the following code to do things with gridview(slightly modified from http://developer.android.com/resources/tutorials/views/hello-gridview.html). I want to replace the onClicklistener and the onClick() method with their "touch" equivalents i.e. touchlistener and onTouch() so that when i touch an…

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• UIWebViewDelegate returns different error message on iPod Touch 2G and 3G

  - by lostInTransit

  Hi I have an app developed using SDK 3.0. My view has a UIWebView whose delegate is the viewcontroller. I want to show an error message when the webview does not load (in case the touch goes out of wifi range or wifi is turned off) I override this method to show an alert - (void)webView:(UIWebView…

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• Typing tutor games with good playablity

  - by matt wilkie

  Are there any linux typing tutor games which are enjoyable games in their own right? I'm a computer professional, but have never learned to type properly. I also don't want my kids to pick up my bad habits! The kids are okay with TuxTyping, for a time. Something like Typing of the Dead sounds great,…

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• Inconsistent mouse cursor status while typing

  - by Jim

  I have noticed that when I type in some programs, Text Editor, Terminal, Bluefish, Gnome Baker, etc. the mouse cursor disappears while I am typing. In other programs like Firefox and LibreOffice, it does not. I am not an application programmer, but I imagined it has to do with their cross-platform…

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• How to practice typing of programmer keys such as tilde, pipe and programmer quote?

  - by user7893

  It is nice that there are services such as TypeRacer where you can practice casual writing but I want to practice programmer keys, covers more numbers and keys not used by regular typist. There was some tutor with which I practiced some programmer keys and noticed that my speed dropped dramatically…

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• theming sencha touch error: File to import not found or unreadable: sencha-tou ch/default/all

  - by dan

  I just cant find a workarround for this, please help my config.rb in location $PROJECT_HOME/assets/www/theming dir = File.dirname('..Path_to_project_home..\assets\www\theming\config.rb') load File.join(dir, '..', 'lib', 'touch', 'resources', 'themes') sass_path = dir css_path = dir…

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• Sencha Touch Nestedlist JSON format Example

  - by Ankit Shah

  Hello Friends, I'm new to sencha. Using Sencha touch. I would like to make nested listing like first of list comes, when click on one of the link it goes to another listing, when click on second list's any link it opens image like that. http://dev.sencha.com/deploy/touch/examples/nestedlist/ …

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• overflow hidden not working on touch device

  - by Jesper Ong

  I have a problem with overflow:hidden on a touch device. Basically I have my html and body on overflow:hidden. With a contact form outside(bottom) of the window. On clicking a button this form will animate in. This is so far working great on desktop browsers. But on touch devices, I seem to…

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• Tooltip equivalent for touch devices?

  - by eteubert

  Hey folks, Touch devices are on the rise. More and more website developers try to optimize their pages for those devices. Until recently the most common solution was to build a mobile version for the website. But with tablets this will most likely change to adjusting the original pages to…

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• Android: Touch seriously slowing my application

  - by Jason Rogers

  Hi all, I've been raking my brains on this one for a while. when I'm running my application (opengl game) eveyrthing goes fine but when I touch the screen my application slows down quite seriously (not noticeable on powerful phones like the nexus one, but on the htc magic it gets quite…

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• cocos2d-x and handling touch events

  - by Jason

  I have my sprites on screen and I have a vector that stores each sprite. Can a CCSprite* handle a touch event? Or just the CCLayer*? What is the best way to decide what sprite was touched? Should I store the coordinates of where the sprite is (in the sprite class) and when I get the…

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• Format textfield while typing Ios

  - by BBios

  Ive seen other examples and tried - (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string I am not sure what I am doing wrong, I just started coding my first Iphone App This is what I am trying to do I have 4…

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• Implicit typing of arrays that implement interfaces

  - by Sir Psycho

  Hi, I was under the impression that the C# compiler will implicitly type an array based off a type that they can all be implicitly converted to. The compiler generates No best type found for implicitly-typed array public interface ISomething {} public interface ISomething2 {} …

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• Interpreter typing in C

  - by typus

  I'm developing an interpreter and I have some questions to it. I recently saw a small C interpreter that used a very simple struct like the below for all its objects/values in the language: struct Object { ubyte type; ubyte value; }; This struct can hold strings,…

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• Borland problem: typing

  - by b3y4z1d

  When I type in Borland C++,it types over the line,not on a new one.That means that every time I press enter,it doesn't give me a fresh,new,empty line in which to type but goes to the one underneath. And there when I try to type I expect the symbols,numbers and letters to…

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• Coverflow in HTML5 for iPhone/iPod Touch

  - by Stephanie

  Hi, I have to do a web page destined for iPhone and iPod-touch that needs to incorporate the Coverflow style of apple in a page to display a list of videos. I've heard something about gizmos that could help, but I can't find anything relevant or that could work…

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• glow when touch the button in the view in iphone

  - by Pugal Devan

  Hi, I am new to iphone development. I have seen the facebook application.In Facebook -- Camera(Click)-- Photo Albums--Thumbnails-- Write a caption View. Here click event is highlighted. In this view where ever i touch, the touch is highlighted. How it can be…

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• glow when touch the screen in android?

  - by androidbase Praveen

  when i touch whereever in the screen that point will be glow(nothing but like a flash or glittering) for some time. how to do that? any example or idea?? i have to implement to put buttons on it. exactly when i touch the screen it will glow some time and then…

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