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• Is it possible to access raw iphone audio output?

  - by Peter Hall

  Is it possible access raw PCM data from the iphone audio output? I know I can embed an MP3 and use AudioUnit. But if the user is playing music in the background from their itunes library, is it possible to access that audio data? This is for an app that shows visual effects, which react to the music. From what I can tell, it isn't possible, but that's just from lack of finding any information at all, rather than actual confirmation that it can't be done. If it isn't possible to access the audio stream from the ipod, is it possible to access raw audio output from the Media Player inside an app, or is pretty much not permitted to access raw audio data from the itunes library at all? EDIT: I found this question: iOS - Access output audio from background program, which say I can't access the audio from a background app. But is it possible to get the audio data from the itunes library if I play it inside the app?

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• button in the form cause it be submitted automatically

  - by Spiderman

  has the HTML version changed lately (like from ie7 to IE8?) I notice the following change that cause me some troulbe - I am having a code that is similar to this: <form method="POST" action="/admin/modify"> <input type="text"/> <button onclick="dosomething()">Press</button> </form> <script type="text/javascript"> function doSomething(){ // doesn't matter what actually } </script> What is weired to me in this code is that by pressing the button inside the form, all I want is to perform some javascript action but eventaully it causes the form to be submitted too, even when I am not willing to do it. So - is it true? and if so how can I perform some java script actoin inside a from but prevent the form from being submitted automatically?

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• How to change a variable type in C#?

  - by Mosho Mulan

  I wanted to use something like this: if(x==5) { var mydb= ........ ; } else { var mydb = ........ ; } but it didn't work because I can't declare a variable inside if statement. So I tried to do this: var mydb; if (x==5) { mydb= ............. ; } else { mydb=.............; } but id didn't work either because I had to initialize the variable (mydb). So the question is: I don't necessarily know the type of the variable, can I declare it anyway and then change the type inside the if statement?

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• UIScrollView Does not Scroll

  - by paul simmons

  I have added a long info screen to my iPhone app. The info is a long UIImageView, and it is contained inside a UIScrollView. They are both defined in .xib file. At run-time, initially I set scrollview's position outside window, and when user clicks a button, set its position inside window. This part is OK. But scrollview displays the image but does not scroll. Isn't it enough to place in MainViewContoller.xib, set the contained content, and (at code) set its contentSize equal to the content's size? BTW: I try it at simulator currently.

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• Events doesn't fire when using UpdatePanel

  - by nitinkhanna

  Hi, What I did is, I have made 2 user controls. One control is inside the other. NoW one control has a buttton and a data grid and datalist in it. When pressing button I am filling datagrid while datalist visiblity false. This is working fine. But now when I press some link button in datalist data, it should call item_command event but it is not calling. I have also used a Updatepanel as a wrapper(all controls are inside it). Please suggest what may be the reason for that. Thanks

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• Why is Scaffolding Not Working in Ruby on Rails?

  - by Timmy

  I created a controller and a model. The controller is called "Admin" and the model is called "Album". I edited database.yml with proper info and did the rake db:migrate command which didn't return any errors and did migrate the db inside schema.rb. Inside the controller I wrote: class AdminController < ApplicationController scaffold :album end Next I started my server and went to http://localhost:3000/admin but instead of seeing the typical CRUD page I get the following error: app/controllers/admin_controller.rb:3 Request Parameters: None Show session dump --- flash: !map:ActionController::Flash::FlashHash {} Response Headers: {"cookie"=>[], "Cache-Control"=>"no-cache"} Any idea why?

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• Instantiating File from a remote url in a rails controller

  - by Thiago

  Hi there, Is there a way to have something like this: File.new('http://hostname/myfile.zip') inside a controller? Thanks in advance

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• How to add values to a JSON object?

  - by Damiano

  Hello everybody, I have created an array with: var msg = new Array(); then, I have a function that add values to this array, this function is: function add(time, user, text){ var message = [time, user, text]; if (msg.length >= 50) msg.shift(); msg.push(message); } As you can see, if the array has 50 or more elements I remove the first with .shift(). Then I add an array as element. Ok, the code works perfectly, but now I have to loop the msg array to create a JSON obj. The JSON object should has this format: var obj = [ {'time' : time, 'user' : user, 'text' : text}, {'time' : time, 'user' : user, 'text' : text}, {'time' : time, 'user' : user, 'text' : text} ] I mean...i have to loop msg array and then store all the values inside the JSON object. I do not know how to "concatenate" the element of the array inside json obj. Could you help me? Thank you very much in advance!

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• Why do Java source files go into a directory structure?

  - by bdhar

  Suppose that I am creating a Java project with the following classes com.bharani.ClassOne com.bharani.ClassTwo com.bharani.helper.HelperOne com.bharani.helper.support.HelperTwo with files put immediately under the folder 'src' src/ClassOne.java src/ClassTwo.java src/HelperOne.java src/HelperTwo.java and compile them using the command $ javac src/*.java -d classes (assuming that classes directory exists) The compiler compiles these files and put the class files in appropriate sub-directories inside the 'classes' directory like this classes/com/bharani/ClassOne.class classes/com/bharani/ClassTwo.class classes/com/bharani/helper/HelperOne.class classes/com/bharani/helper/support/HelperTwo.class Because the spec mandates that the classes should go inside appropriate directory structure. Fine. My question is this: When I use an IDE such as Eclipse or NetBeans, they create the directory structure for the source code directory ('src' directory here) also. Why is that? Is it mandatory? Or, is it just a convention? Thanks.

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• Getting JSON data on server side with Grails

  - by maximus

  Once I post JSON data to a url in Grails, how can I get access to that data inside of the controller?

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• using delete or update command in a function

  - by anand-juventus

  can we use delete or update command inside a function in sql server 2005 database or any other database?

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• Passing parameters into ViewModels (Prism)

  - by vXtreme

  Hi I can't figure out how to pass parameters to my viewmodels from other views or viewmodels. For instance, I have a View called Customers. There is a grid inside, and if you double-click the grid, a new view is supposed to come up and allow you to edit that customer's data. But how will the View(Model) responsible for editing data know which customer it's supposed to open if I can't pass any parameters inside? EventAggregator is out of the question because I obviously can't create hundreds of eventargs, each for one view. And besides, it's a lousy solution. So far I was able to come up with: CustomerDataView custView = new CustomerDataView(customerId, currentContext); manager.Regions[RegionNames.Sidebar].AddAndActivate(custView); What do you think about this particular solution? Is this the way it's normally done? What I don't like about this is the fact that I lose out on automatic dependency injection by Unity.

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• C# class in a directory without having the directory name in its namespace

  - by PaN1C_Showt1Me

  Hi ! If you add a directory in your Visual Studio project and you add a class inside it, the namespace will respect the whole path the directory inclusive. But sometimes, I prefer having the class in the main project namespace, although it lies in a directory structure, just because I don't want to have mess in my code. So often happens that I rewrite the Myproject.MyDirectory namespace to be Myproject only. Is it OK in your opinion? Or does any convention say that every class inside the directory must have it included in the namespace ? Thanks

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• Access files (.wav) in java package

  - by Highmastdon

  I want to access my .wav files which are in a package inside my project. For example I got two packages: package program package sounds From inside the program/something.class I'd like to play the sounds/asound.wav. How is this possible. clip.open(AudioSystem.getAudioInputStream(new File(filename))); clip.start(); //.... something inbetween clip.stop(); Here filename is C:\\projects\\something\\sounds\\, but how is it possible to just give a relative path to the asound.wav in the package?

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• UISearchBar in UINavigationBar with ScopeBar

  - by ncipollina

  I am trying to put a UISearchBar inside of the UINavigationBar, which I am able to do without much problem. The problem is that I have logic when editing to show the Scope Bar. This all works fine, with one exception. The navigation bar tries to center the UISearchBar inside of the title view. This causes the search bar to move up above the navigation bar. I tried adding some logic to set the frame of the search bar so that it just draws overtop of my main view, which is fine. I can only set the height, which causes the search bar to draw over the view just fine, but it isn't wide enough to cover the whole screen. If I set the width on the frame, it goes back to the same behavior of trying to center the UISearchBar on the navigation bar. Anyone know how I can accomplish this? Thanks, Nick

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• Keep hover state applied until user mouses over another element.

  - by Thomas

  First let me state that I'm a jquery noob, so this may not make a lot of sense. So I have a series of list items that expand to show a hidden div inside if the user mouses over a link inside the item (not the whole list item itself) The problem is that if the users mouse leaves the link the li closes up again. I need this to work in a way so that the li only closes if you mouse over a link in another li. (sorry this is kind of hard to put into words) Heres my code. $(document).ready(function(){ $(".home_upcoming_title").hoverIntent({ over: makeTall, timeout: 500, out: makeShort }); }); // close document.ready function makeTall(){$(this).parents("li").animate({"height":200},200);} function makeShort(){$(this).parents("li").animate({"height":32},200);} and the HTML <li class="p1"> <ul class="home_upcoming_list2" id="fade"> <li class="home_upcoming_date">Sat.Sept.23rd.2010</li> <li><a href="./." class="home_upcoming_title" >Event Title</a></li> <li class="home_upcoming_city">Los Angeles</li> <li class="home_upcoming_type">Festival</li> <li class="home_upcoming_venue">Venue</li> <li class="home_upcoming_age">18+</li> <li><a href="./." title="Buy Tickets" class="home_upcoming_tix">Buy Tickets</a></li> <li><a href="./." class="upcoming_info" title="View Details"></a></li> </ul> <div style="height:150px; background-color:#FF0000; display:block;" class="sl0w"></div> </li> so the link with the class "home_upcoming_title" expands li to show the div inside but when I mouse over the div itself the list closes. I also need it so only the class "home_upcoming_title" expands the div. but it needs to stay open until you mouse over another link with the same class. sorry if that doesn't make much sense :)

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• Finding contained bordered regions from Excel imports.

  - by dmaruca

  I am importing massive amounts of data from Excel that have various table layouts. I have good enough table detection routines and merge cell handling, but I am running into a problem when it comes to dealing with borders. Namely performance. The bordered regions in some of these files have meaning. Data Setup: I am importing directly from Office Open XML using VB6 and MSXML. The data is parsed from the XML into a dictionary of cell data. This wonks wonderfully and is just as fast as using docmd.transferspreadsheet in Access, but returns much better results. Each cell contains a pointer to a style element which contains a pointer to a border element that defines the visibility and weight of each border (this is how the data is structured inside OpenXML, also). Challenge: What I'm trying to do is find every region that is enclosed inside borders, and create a list of cells that are inside that region. What I have done: I initially created a BFS(breadth first search) fill routine to find these areas. This works wonderfully and fast for "normal" sized spreadsheets, but gets way too slow for imports into the thousands of rows. One problem is that a border in Excel could be stored in the cell you are checking or the opposing border in the adjacent cell. That's ok, I can consolidate that data on import to reduce the number of checks needed. One thing I thought about doing is to create a separate graph that outlines the cells using the borders as my edges and using a graph algorithm to find regions that way, but I'm having trouble figuring out how to implement the algorithm. I've used Dijkstra in the past and thought I could do similar with this. So I can span out using no endpoint to search the entire graph, and if I encounter a closed node I know that I just found an enclosed region, but how can I know if the route I've found is the optimal one? I guess I could flag that to run a separate check for the found closed node to the previous node ignoring that one edge. This could work, but wouldn't be much better performance wise on dense graphs. Can anyone else suggest a better method? Thanks for taking the time to read this.

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• How to receive packets on the MCU's serial port?

  - by itisravi

  Hello, Consider this code running on my microcontroller unit(MCU): while(1){ do_stuff; if(packet_from_PC) send_data_via_gpio(new_packet); //send via general purpose i/o pins else send_data_via_gpio(default_packet); do_other_stuff; } The MCU is also interfaced to a PC via a UART.Whenever the PC sends data to the MCU, the *new_packet* is sent, otherwise the *default_packet* is sent.Each packet can be 5 or more bytes with a pre defined packet structure. My question is: 1.Should i receive the entire packet from PC using inside the UART interrut service routine (ISR)? In this case, i have to implement a state machine inside the ISR to assemble the packet (which can be lengthy with if-else or switch-case blocks). 2.Detect a REQUEST command (one byte)from the PC in my ISR set a flag, diable UART interrupt alone and form the packet in my while(1) loop by polling the UART?

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• How to get InnerText of IFrame from another site?

  - by Eclipsed4utoo

  I am trying to do some screen-scraping of a website. The content that I want to get is inside of an IFrame. How do I get the InnerText or HTML that is being displayed inside of the IFrame? I am using .Net 4.0 and C#. I want to be able to do this from a WinForm. I tried this, but can't find where to get the actual data from... void PageCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { WebBrowser b = sender as WebBrowser; string response = b.DocumentText; HtmlElement element = b.Document.GetElementById("profileFrame"); if (element != null) { // do something with the data } } I've tried searching through the element but couldn't find any of the HTML. Is this possible?

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• AS3: Removing EventListeners without knowing amount or names

  - by DevEight

  Hello! First shortly about how my site works: When a link is clicked it checks if something is already displayed in either the Left or Right side of the screen (the website looks like a book, so I have a left page I want to display information on and a right page). If there is already something showing it hides it and displays the new object, together with this it enables all the buttons within that object (I have separate functions to set up each object). An example of such an EventListener would be: pathTo.Button1.addEventListener(MouseEvent.CLICK, function():void {showText(side, object)}); What I'm trying to do is to remove all the previous set EventListeners without having to create separate functions for removing the links inside every object as well. Shorter version: How do I remove all EventListeners on all objects inside another object? The only variable I want to store is the object containing everything. There are however not always EventListeners within the objects.

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• Second CPU missing of Dual Core

  - by Zardoz

  My Lenovo T61 has a dual core CPU. I just noticed that under Ubuntu 10.10 only one CPU is recognized. I know that once both CPUs worked. Not sure since when the second CPU is missing. Maybe since the last kernel update. Currently I am using linux-image-2.6.35-23-generic (for x86_64). What can I do to enable the second CPU again? Here the ouput of /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Core(TM)2 Duo CPU T8100 @ 2.10GHz stepping : 6 cpu MHz : 800.000 cache size : 3072 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm ida dts tpr_shadow vnmi flexpriority bogomips : 4189.99 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: Any help is welcome. I really need that CPU power for my work here.

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• ssh - "Connection closed by xxx.xxx.xxx.xxx" - using password

  - by Michael B

  I attempted to create an new user account that I wish to use to log in using ssh. I did this (in CentOs): /usr/sbin/adduser -d /home/testaccount -s /bin/bash user passwd testaccount This is the error I receive when trying to log in via ssh: ~/.ssh$ ssh -v [email protected] OpenSSH_5.1p1 Debian-5ubuntu1, OpenSSL 0.9.8g 19 Oct 2007 debug1: Reading configuration data /etc/ssh/ssh_config debug1: Applying options for * debug1: Connecting to xxx.xxx.xxx [xxx.xxx.xxx.xxx] port 22. debug1: Connection established. debug1: identity file /home/user/.ssh/identity type -1 debug1: identity file /home/user/.ssh/id_rsa type 1 debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048 debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048 debug1: identity file /home/user/.ssh/id_dsa type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3 debug1: match: OpenSSH_4.3 pat OpenSSH_4* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.1p1 Debian-5ubuntu1 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-cbc hmac-md5 none debug1: kex: client->server aes128-cbc hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host 'xxx.xxx.xxx.xxx' is known and matches the RSA host key. debug1: Found key in /home/user/.ssh/known_hosts:8 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,gssapi-with-mic,password debug1: Next authentication method: gssapi-with-mic debug1: Unspecified GSS failure. Minor code may provide more information No credentials cache found debug1: Unspecified GSS failure. Minor code may provide more information No credentials cache found debug1: Unspecified GSS failure. Minor code may provide more information debug1: Next authentication method: publickey debug1: Offering public key: /home/user/.ssh/id_rsa debug1: Authentications that can continue: publickey,gssapi-with-mic,password debug1: Trying private key: /home/user/.ssh/identity debug1: Trying private key: /home/user/.ssh/id_dsa debug1: Next authentication method: password testaccount@xxx's password: Connection closed by xxx.xxx.xxx.xxx The "connection closed" message appeared immediately after entering the password (if I enter the wrong password it waits and then prompts for another password) I am able to log in from the same computer using other accounts that had been setup previously. When logged into the remote machine I am able to do 'su testaccount' Thanks for your time.

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• How to make drupal known submitting custom content

  - by Andrew

  Hi, I know this is not a drupal forum but, as I’m not getting any response there, I decided to give it a shot here. I’m creating a web site that accepts custom content from users. So, for that matter, this site has a form and a custom module. Instead of using admin theme, this form is placed inside custom template which is created to have a uniform look with the rest of the pages. As a result, creating form elements through hook_form is out of question. Here’s where my problems lie. As this form uses custom theme, I’m not sure as to what can I do to make drupal know that user is submitting new content data when the form is submitted? Would I need to use same query string that of content submission page of admin page like - ?q=node/add/page for action attribute of the html form? (OR) the only way is to map the url to my custom function and invoke some sort of hook inside of it? Thanks

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• SSH from ubuntu server to Windows 2008 repeatedly asks for password

  - by jrizos

  I am trying to setup GIT using SSH mode. The central GIT repository is on a NAS device running Windows 2008 server and the user GIT repository is on ubuntu 12.04. When I try to SSH to the windows machine however I am not able to successfully get in. SSH keays are not setup but I think the problem is even before that since I cant get in just by providing the correct password. The output from the SSH command is below. Any help would be appreciated. dba@clpserv01:~$ ssh -v -l administrator clpnas OpenSSH_5.9p1 Debian-5ubuntu1, OpenSSL 1.0.1 14 Mar 2012 debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 19: Applying options for * debug1: Connecting to clpnas [***.***.***.***] port 22. debug1: Connection established. debug1: identity file /home/dba/.ssh/id_rsa type -1 debug1: identity file /home/dba/.ssh/id_rsa-cert type -1 debug1: identity file /home/dba/.ssh/id_dsa type -1 debug1: identity file /home/dba/.ssh/id_dsa-cert type -1 debug1: identity file /home/dba/.ssh/id_ecdsa type -1 debug1: identity file /home/dba/.ssh/id_ecdsa-cert type -1 debug1: Remote protocol version 2.0, remote software version OpenSSH_5.5p1 Debian-6+squeeze2 debug1: match: OpenSSH_5.5p1 Debian-6+squeeze2 pat OpenSSH* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.9p1 Debian-5ubuntu1 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Server host key: RSA bd:37:d1:98:51:2a:d6:b5:f5:c7:98:d8:74:2c:4e:cd debug1: Host 'clpnas' is known and matches the RSA host key. debug1: Found key in /home/dba/.ssh/known_hosts:1 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: Roaming not allowed by server debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,password,keyboard-interactive debug1: Next authentication method: publickey debug1: Trying private key: /home/dba/.ssh/id_rsa debug1: Trying private key: /home/dba/.ssh/id_dsa debug1: Trying private key: /home/dba/.ssh/id_ecdsa debug1: Next authentication method: keyboard-interactive Password: debug1: Authentications that can continue: publickey,password,keyboard-interactive Password:

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• How can I navigate through xaml pages with Monogame in a Windows Phone 8 project?

  - by misiMe

  I finished to develop an XNA game, then I created the Monogame project, and tested it on my device. Now I made some other pages such as an "about" page. How can I go to that page considering I have a Monogame project and just an XNA code? In particular inside my game I made a Main Menu where you can click the "about" button and know if someone has clicked: how can I link that event to the "go to about.xaml" function? Inside XNA, update method: if (about_button.IsClicked()) { // Go to about.xaml } I tried: if (about_button.IsClicked()) { ((PhoneApplicationFrame)Application.Current.RootVisual).Navigate(new Uri("/About.xaml", UriKind.Relative)); } But it throws: System.UnauthorizedAccessException

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