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• send keystrokes from iphone to PC

  - by Matt Facer

  hi guys. I'm looking to create a simple app which will send keystrokes from an iphone to a PC. I understand that I will need to have a program on my PC "listening"... I've been looking in to AsyncSocket and NSStream, but there are no tutorials which really make it clear to understand. Does anyone know if this is right? I basically want to interact with a program on my PC which listens for keystrokes to control it. Does anyone know of a tutorial or place where I could start to learn this? (I've written iphone apps before, but I am new to networking)

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• ssh-keygen accepting stdin

  - by Ryan

  I am trying to call ssh-keygen using a variable through bash as an input instead of a file to get a fingerprint of a public key. This method does not work as it says the key file is invalid (it's correct for sure) echo $pubkey | ssh-keygen -lf /dev/stdin This does work ssh-keygen -lf /dev/stdin < alpha.pub This does not work because I get an ambiguous redirect ssh-keygen -lf /dev/stdin < $(echo $pubkey) I would appreciate some insight as to how to get ssh-keygen to read from a variable with a public key and if possible, an explanation as to why the redirects aren't doing what I think they should be doing. I searched online but many of the redirect tutorials didn't seem to answer my questions.

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• Sending the variable's content to my mailbox in Python?

  - by brilliant

  I have asked this question here about a Python command that fetches a URL of a web page and stores it in a variable. The first thing that I wanted to know then was whether or not the variable in this code contains the HTML code of a web-page: from google.appengine.api import urlfetch url = "http://www.google.com/" result = urlfetch.fetch(url) if result.status_code == 200: doSomethingWithResult(result.content) The answer that I received was "yes", i.e. the variable "result" in the code did contain the HTML code of a web page, and the programmer who was answering said that I needed to "check the Content-Type header and verify that it's either text/html or application/xhtml+xml". I've looked through several Python tutorials, but couldn't find anything about headers. So my question is where is this Content-Type header located and how can I check it? Could I send the content of that variable directly to my mailbox? Here is where I got this code. It's on Google App Engines.

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• How do I get selected background color from SecondView to pass to FirstView?

  - by rob

  I am going insane! This is a simple app with two Views. FirstView is a text field with info button to flip to SecondView. In SecondView I have 6 buttons for background color choice. When button is pushed the color of background changes perfectly but cannot make it also change background color for FirstView. Any help would be GREAT! Thanks! I am using Objective C class working on a iPhone app. Sorry new at this. The SecondView acts almost like a settings page in the fact that when a button is pushed the background color changes to the button color. I need it so when I push the "back" button to go back to FirstView the background color has also changed to that color choice. Been thru sooooooooo many tutorials and codes that now I am totally lost......... Thanks again!

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• Loading all files in a directory in a Java applet

  - by WarrenB

  How would one go about programatically loading all the resource files in a given directory in a JAR file for an applet? The resources will probably change several times over the lifetime of the program so I don't want to hardcode names in. Normally I would just traverse the directory structure using File.list(), but I get permission issues when trying to do that within an applet. I also looked at using an enumeration with something line ClassLoader.getResources() but it only finds files of the same name within the JAR file. Essentially what I want to do is (something like) this: ClassLoader imagesURL = this.getClass().getClassLoader(); MediaTracker tracker = new MediaTracker(this); Enumeration<URL> images = imagesURL.getResources("resources/images/image*.gif"); while (images.hasMoreElements()){ tracker.add(getImage(images.nextElement(), i); i++; } I know I'm probably missing some obvious function, but I've spent hours searching through tutorials and documentation for a simple way to do this within an unsigned applet.

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• Do Eclipse's Refactoring Tools Violate The Java Language Specification?

  - by Tom Tresansky

  In Eclipse 3.5, say I have a package structure like this: tom.package1 tom.package1.packageA tom.package1.packageB if I right click on an the tom.package1 package and go to Refactor-Rename, an option "Rename subpackages" appears as a checkbox. If I select it, and then rename tom.package1 to tom.red my package structure ends up like this: tom.red tom.red.packageA tom.red.packageB Yet I hear that Java's packages are not hierarchical. The Java Tutorials back that up (see the section on Apparent Hierarchies of Packages). It certainly seems like Eclipse is treating packages as hierarchical in this case. I was curious why access specifiers couldn't allow/restrict access to "sub-packages" in a previous question because I KNEW I had seen "sub-packages" referenced somewhere before. So are Eclipse's refactoring tools intentionally misleading impressionable young minds by furthering the "sub-package" myth? Or am I misinterpreting something here?

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• Some doubts in WPF

  - by xyz

  I am entirely new to WPF . Though I am going thru the tutorials and articles from net but I am having doubts . Some of the questions which have striked out so far are a) What is routed events and what extra thing it does server? b) What are dependency properties and it's benefits. c) How dependency properties differ from attached properties. d) Why does first bubbling happens follwed by tunneling? And what is the purpose of this? e.g. <canvas> <button canvas.left=10/> </canvas> Is it a dependency property or attached property? Thanks

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• How to gradient fill a button's background?

  - by Samuh

  I have to create a colored button with gradient fill(starting from the middle of the button along Y axis). If I set the background property of the button to the color I want, I lose the rounded look and feel of a button and also the gradient fill(It looks like a TextView with a background). Also, I want this color to change when the user depresses the button. Can i specify this via selector XMLs(Color State Lists)? Any tutorials or links that can help me here is appreciated. Thanks.

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• Super Cam iphone app how do they make it possible?

  - by Silent

  there is an iphone app called supercam and you can get it through the app store free. This app features a way to connect your webcam or dv cam that is connected on the internet, you could set up the ip address and enter the data on the app and it will connect to your online camera. the thing is that they have the video stream and it looks like they embedded the video in a uiview or webview at the bottom they have buttons to choose from all the cameras you have set up. so this is different from other video streaming apps because it does not play the video from the full screen mode (MPMediaPlayer API) would there be any tutorials about this or somehow take reverse engineer this?

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• How do I get the current color of a fragment?

  - by Mason Wheeler

  I'm trying to wrap my head around shaders in GLSL, and I've found some useful resources and tutorials, but I keep running into a wall for something that ought to be fundamental and trivial: how does my fragment shader retrieve the color of the current fragment? You set the final color by saying gl_FragColor = whatever, but apparently that's an output-only value. How do you get the original color of the input so you can perform calculations on it? That's got to be in a variable somewhere, but if anyone out there knows its name, they don't seem to have recorded it in any tutorial or documentation that I've run across so far, and it's driving me up the wall.

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• How can I do an SSL connection with PHP

  - by Anth0

  Hi, I need to develop a PHP class to communicate with Apple servers in order to do Push notification (APNS). I have the certificate (.pem) and I tried to follow various tutorials found on Internet but I'm still getting error trying to connect to ssl://gateway.sandbox.push.apple.com:2195 with stream socket : $apnsHost = 'gateway.sandbox.push.apple.com'; $apnsPort = 2195; $apnsCert = 'apns-dev.pem'; $streamContext = stream_context_create(); stream_context_set_option($streamContext, 'ssl', 'local_cert', $apnsCert); $apns = stream_socket_client('ssl://'.$apnsHost.':'.$apnsPort, $error, $errorString, 2, STREAM_CLIENT_CONNECT, $streamContext); A telnet on this URL works so port 2195 is opened. Openssl is activated on PHP since I get "Registered Stream Socket Transports : tcp, udp, ssl, sslv3, sslv2, tls" with a phpinfo(). My certificate is well read (PHP is_readable(certif.pem) returns true on the file) Is there anything else to activate in Apache or PHP to get it work ?

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• htaccess - rewrite rule issue - not able to get 10th variable

  - by sandeepan-nath

  I am not able to get the 10th variable. I am getting 1st variable appended with a 0(zero) instead. RewriteRule ^(browse_by_exam)/(classes|packs|tutor_search)/([a-zA-Z0-9\.\á\á\â\ä\ã\å\æ\ç\è\é\ê\ë\ì\í\ï\ð\ñ\ò\ó\ô\õ\ö\ø\ù\ú\û\ü\ý\þ\¿\¡\«\»\ÿ\ß\$\*\!\-\=\@\#\%\^\(\)\_\&\{\}\;\,\<\>\?\`\~\[\|\"\'\]\\\ +]+)/([0-1])/([0-9]+)/([0-9]+)/([0-9]+),([0-9]+),([a-z]+),([a-z]+)?$ index.php?a=$1&type=$2&search_text=$3&new_search=$4&search_exam=$5&search_subject=$6&site=$7&count=$8&column=$9&direction=$10 I am not able to get the 10th variable using $_GET['direction'] in my php code - it returns me the 1st variable appended with a 0 i.e. browse_by_exam0. I read in many places about this thing. Here http://www.digimantra.com/tutorials/advanced-htaccess-for-more-than-10-group-of-backtrack-references/, they have given a workaround for the problem - using %1 instead of $10, but that too is not working. Please help. I am completely blocked.

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• Haskell: What is the difference between $ (dollar) and $! (dollar exclamation point)

  - by Jelle Fresen

  Can anybody explain the difference in Haskell between the operators ($) and ($!) (dollar sign vs dollar sign exclamation point)? I haven't seen the use of $! anywhere so far, but while browsing through the Haskell reference on www.zvon.org, I noticed its existence and that it has the exact same definition as $. When trying some simple statements in a Haskell interpreter (ghci), I couldn't find any difference, nor could I find any reference to the operator in the top listed tutorials when googling for haskell tutorial. So, just out of curiosity, what is the difference, if at all?

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• A little bit more complicated multiview App for Iphone

  - by Thomas Losert

  Hi, i'm new to iphone development. I spend several days by looking for how write muliview app for an Iphone OS. I found how to switch the diferent views without navigation hierarchy (in this article). It's great, but i want more complicated function. For example, i have three diferent views (view 1 - 3) and i can switch between them with technique from link 1. It works fine. My question is: How can i put UITabBarController on view 2, that shows own subviews (tabView 1 - 3) and how put UINavigationController on view 3, that shows own subviews (navView 1 - 2)? The reslut should look like that, one main view (view 1) with two buttons (for example), which switch me to "window" with UiTabBarController or UINavigationController. I found only tutorials, where UITabBarController was a first controller class, that shows directly from AppDelegate (something like default Xcode predefined scenarios). Thanks for your helpfull answer, or i will be crazy soon:).

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• Using svn with xampp for php projects

  - by idrish

  I have heard a lot about version control and would like to work on it. I read some tutorials about the same. However i am not quite sure how svn works with xampp. I have installed svn, Tortoise svn and made the necessary changes in xampp. For instance i copied the two required modules to c:/xampp/apache/modules and also made changes to the conf file in apache. Here are the changes made in c:/xampp/apache/conf/httpd.conf. # Configure Subversion repository <Location /svn> DAV svn SVNPath “C:\svn” AuthType Basic AuthName “Subversion repository” AuthUserFile “c:\svn_conf\passwd” Require valid-user </Location>t I created the repository at c:/svn and also created the password file. However when i visit http:/localhost/svn i get a 404 page not found error. Where am i going wrong. what am i missing.? Any pointers?? Thanks in advance.

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• How To use Simple Html Video Player Also Have Rewind Forward Capability For The Next Video ?? PHP HTML

  - by Syed Raza

  i am trying to use this code for video in html but fistle it is for flash videos and second thing is that it do not have rewind forward capability for the next video clip my code is, <object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" width="250" height="250" align="middle"> <param name="allowScriptAccess" value="sameDomain"/> <param name="movie" value="Pro Tools Tutorials.swf"/> <param name="quality" value="high"/> <param name="bgcolor" value="#000000"/> <param name="allowFullScreen" value="true"/> <embed src="/unknittingmouse1.swf" quality="high" align="middle" bgcolor="#ffffff" width="250" height="230" allowFullScreen="true" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer"> </embed> </object> we have to also be carefull that that video code will run on internet explorer Hopes to listen from you soon, thanks in advance

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• PHP: Facebook stream.publish and outdated template bundles?

  - by AFK

  Ok So I haven't tried messing with the facebook PHP API for months.. it's gross. Since template bundles are apparently now defunct, how can I publish a story into my users news feed for their friends? I've also already requested permissions. Edit: The issue seems to arise from requested permissions not being set for the user when They are granted. So far I have this $appapikey = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'; $appsecret = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'; $facebook = new Facebook($appapikey, $appsecret); $fb_user = $facebook->require_login(); try { $facebook->api_client->feed_publishUserAction(); } catch(Exception $e) { } edit: I've looked through the facebook "api documentation" multiple times it's just not clear to me. I can't tell what's actually deprecated or not. They link to tutorials 2-3 years old! if you have a problem with your iframe application reloading over and over and over try using $facebook-require_frame()

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• Facebook - using an external flash application to connect via PHP

  - by Anonymous

  So, I have this application that needs to connect to facebook. It uses php for all of its data access, in older examples of the facebook API, i see people get the UID, and sessionkey from the iframe page, then send them to php and run a function called $facebook-setUser($UID, $sessionKey). This is how the majority of the tutorials online are doing it. That would be great, except the newest facebook API doesn't have any function like that. I have been scouring the web for 2 hours and have found nothing relating to the disappearance of this seemingly critical function. So, I have a flash application that needs to authenticate via a stateless php resource. I would love it if my PHP code could be completely uncaring if the request originated from flash, or iphone, or another application altogether-it should just need userId and and sessionKey. Is this still possible? Thank you in advance for your help! :)

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• When to choose "Generate an activator..." when creating a new Eclipse plugin project

  - by Anon Support 2010

  There are lots of Eclipse RCP tutorials that begin with "Create a new plugin project..." It seems that approx. 70% of them specify checking the Generate an activator, a Java class that controls the plug-in life cycle. The others specifically say don't check that toggle. Its not clear to me, what generating an activator class does for you, when you need one, and when you don't. For being a prominent option you get every time you create a new plugin project (it seems to be set on by default) this option isn't very well explained anywhere that I have found. Any advice/rules of thumb on choosing this option when creating Eclipse plugin projects?

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• The type or namespace name 'DefaultTemplateLexer' could not be found

  - by user310291

  The official tutorial from http://www.antlr.org/wiki/display/ST/Five+minute+Introduction doesn't work because of DefaultTemplateLexer, how to fix ? using System; using Antlr.StringTemplate; class Script { static public void Main(string[] args) { StringTemplateGroup group = new StringTemplateGroup("myGroup", @"C:\Tutorials\stringtemplate", typeof(DefaultTemplateLexer)); StringTemplate helloAgain = group.GetInstanceOf("homepage"); helloAgain.SetAttribute("title", "Welcome To StringTemplate"); helloAgain.SetAttribute("name", "World"); helloAgain.SetAttribute("friends", "Terence"); helloAgain.SetAttribute("friends", "Kunle"); helloAgain.SetAttribute("friends", "Micheal"); helloAgain.SetAttribute("friends", "Marq"); Console.Out.WriteLine(helloAgain.ToString()); } }

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• Send mail from my web application

  - by lakshmanan

  I have a feature in my web app like I have to send mails from the server to many email ids (some kind of notification stuff) my web application is implemented in struts2. Possibly I have to use javamail api i guess. I am completely new to this javamail and sending mail from server. what basic steps I need to do to setup a mail server in windows, contact the server from my java web app. What api i should I use ? The web has very limited tutorials on javamail and they are damn complicated too. Is there any other api other than javamail by which I can send mail from my java struts2 web app. thanks

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• Xcode missing Command Line Utility section - can't start Foundation project template

  - by Liza

  I downloaded the iPhone SDK from the iPhone dev center a couple of days ago and installed it yesterday. I'm following the Stanford iPhone development tutorials available on iTunes U. On Assignment 1B, the first instruction is to open a new Foundation Project template. The screenshot shows several sections in Xcode which my version doesn't seem to have, including the Command Line Utility section which the Foundation Project template is shown to be in. Does this need to be installed manually? I tried searching on Google with no luck. The fact that I'm an OS X newbie doesn't really help any either. Thanks in advance!

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• Using XSL-FO and HTML?

  - by buggy1985

  Hi, I'm trying to transform some XML-data to HTML with XSLT for my bachelor thesis. My professor wants me to consider XSL-FO too, or at least to write some word about it. But I'm very noob to this. So my questions are: Can I combine FO with HTML? Can I use FO istead of HTML and CSS? If yes, how will my browser render this? Are there any examples/tutorials on how to transform xml into web pages with FO? Thank you very much.

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• are there any tree libraries/widgets for (n)curses

  - by phatmanace

  Hi - I wondered if there were any tree libraries available for (n)curses. I'm trying to write a component that shows a tree of folders & was curious if there was a prebuilt curses component that could do this. I've checked 'core' curses as well as libraries like CDK - and I can't seem to find anything. If none exists, I'm not averse to building my own - but I can't seem to locate any decent tutorials on doing this, so any help in this regard would also be much appreciated. Thanks, Ace

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• Extremely basic PHP and Mysql

  - by fighella

  Background: I am more of a designer than a programmer, but have hacked templates for many open source CMS's (Drupal, Joomla, Wordpress) I want to start from scratch in regards to the relations of php and a mysql database. Lets assume I have a working database and php engine locally. What would be my first step to connecting to my database and creating a table... (im happy to be led to an appropriate tutorial...) Many of the tutorials I have seen start with basic php, but I would rather explore the connection between the db and the php.

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