Search Results

Search found 24726 results on 990 pages for 'message passing'.

Page 300/990 | < Previous Page | 296 297 298 299 300 301 302 303 304 305 306 307  | Next Page >

  • Creating and releasing objects in the same method, while using self as delegate

    - by user200341
    In objective-c you are responsible for releasing objects you allocate, but what happens when you allocate an object in a method, assign self as the objects delegate, and then release the object. The callbacks from the newly created (and released) object fails at this point, or rather, doesn't happen. - (void)doSomething { MyObj *myObj = [[MyObj alloc] init]; myObj.delegate = self; [myObj performOperation]; [myObj release]; } - (void)callbackMethodFromMyObj:(NSString *)message { NSLog(message); } I can't release the object until the callback has occurred, and I can't avoid releasing the object in the same method that creates it (because it exists outside the scope). One way of doing it would be to pass the object along in the call-back and release it in the callback, but is this the right way to go about this?

    Read the article

  • Router Alert options on IGMPv2 packets

    - by Scakko
    I'm trying to forge an IGMPv2 Membership Request packet and send it on a RAW socket. The RFC 3376 states: IGMP messages are encapsulated in IPv4 datagrams, with an IP protocol number of 2. Every IGMP message described in this document is sent with an IP Time-to-Live of 1, IP Precedence of Internetwork Control (e.g., Type of Service 0xc0), and carries an IP Router Alert option [RFC-2113] in its IP header So the IP_ROUTER_ALERT flag must be set. I'm trying to forge the strict necessary of the packet (e.g. only the IGMP header & payload), so i'm using the setsockopt to edit the IP options. some useful variables: #define C_IP_MULTICAST_TTL 1 #define C_IP_ROUTER_ALERT 1 int sockfd = 0; int ecsockopt = 0; int bytes_num = 0; int ip_multicast_ttl = C_IP_MULTICAST_TTL; int ip_router_alert = C_IP_ROUTER_ALERT; Here's how I open the RAW socket: sock_domain = AF_INET; sock_type = SOCK_RAW; sock_proto = IPPROTO_IGMP; if ((ecsockopt = socket(sock_domain,sock_type,sock_proto)) < 0) { printf("Error %d: Can't open socket.\n", errno); return 1; } else { printf("** Socket opened.\n"); } sockfd = ecsockopt; Then I set the TTL and Router Alert option: // Set the sent packets TTL if((ecsockopt = setsockopt(sockfd, IPPROTO_IP, IP_MULTICAST_TTL, &ip_multicast_ttl, sizeof(ip_multicast_ttl))) < 0) { printf("Error %d: Can't set TTL.\n", ecsockopt); return 1; } else { printf("** TTL set.\n"); } // Set the Router Alert if((ecsockopt = setsockopt(sockfd, IPPROTO_IP, IP_ROUTER_ALERT, &ip_router_alert, sizeof(ip_router_alert))) < 0) { printf("Error %d: Can't set Router Alert.\n", ecsockopt); return 1; } else { printf("** Router Alert set.\n"); } The setsockopt of IP_ROUTER_ALERT returns 0. After forging the packet, i send it with sendto in this way: // Send the packet if((bytes_num = sendto(sockfd, packet, packet_size, 0, (struct sockaddr*) &mgroup1_addr, sizeof(mgroup1_addr))) < 0) { printf("Error %d: Can't send Membership report message.\n", bytes_num); return 1; } else { printf("** Membership report message sent. (bytes=%d)\n",bytes_num); } The packet is sent, but the IP_ROUTER_ALERT option (checked with wireshark) is missing. Am i doing something wrong? is there some other methods to set the IP_ROUTER_ALERT option? Thanks in advance.

    Read the article

  • Secure xml messages being read from database into app.

    - by scope-creep
    I have an app that reads xml from a database using NHibernate Dal. The dal calls stored procedures to read and encapsulate the data from the schema into an xml message, wrap it up to a message and enqueue it on an internal queue for processing. I would to secure the channel from the database reads to the dequeue action. What would be the best way to do it. I was thinking of signing the xml using System.Security.Cryptography.Xml namespace, but is their any other techniques or approaches I need to know about? Any help would be appreciated. Bob.

    Read the article

  • How do I get a MessageBox like information window to appear in Java?

    - by John McClane
    I'm learning Java and I have no idea how to do this. I dragged a button on the form in Netbeans, double clicked it and it created this event: @Action public void HelloClickMethod() { JOptionPane.showMessageDialog(this, "The message!", "This is supposed to be the MessageBox title."); } This is the exception the IDE brings up. Cannot find symbol. Symbol: showMessageDialog() Edit 1 Now I changed it to this: @Action public void HelloClickMethod() { JOptionPane.showMessageDialog(this, "The message!", "This is supposed to be the MessageBox title.",JOptionPane.ERROR_MESSAGE); } However the IDE is saying I have an error in the word 'this'. "Cannot find symbol". I don't understand. Why is it so dificult and why are the errors so esoteric. :P

    Read the article

  • Check if NSMutableArray contains text from textfield

    - by Polo Swelsen
    I want to check if the text inserted in a textfield is also in my NSMutableArray. So let's say my NSMutableArray has these objects: "Hey, Hello, No, Yes". Then when a user enters the text: "Hello" i want there to appear a UIAlertView. I now have the following: for (int slt = 0; slt < [zouten count]; slt++) { if (zout.text = [zouten objectAtIndex:slt]) { alert = [[UIAlertView alloc]initWithTitle:@"Goedzo!" message:[NSString stringWithFormat:@"Je hebt een zout gevonden"] delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; } } [alert show]; But somehow the message appears with every word. what am i doing wrong?

    Read the article

  • What does $this generally mean in PHP?

    - by xczzhh
    I am really new to PHP, so I am kind of confused seeing these different operators all day. Here is some code I came across when watching a video tutorail, I'd appreciate it if some could explain a little bit: function index() { $config = Array( 'protocol' => 'smtp', 'smtp_host' => 'ssl://smtp.googlemail.com', 'smtp_port' => 465, 'smtp_user' => '[email protected]', 'smtp_pass' =>'password', ); $this->load->library('email', $config); $this->email->set_newline("\r\n"); $this->email->from('[email protected]', 'Jerry'); $this->email->to('[email protected]'); $this->email->subject('this is an email test'); $this->email->message('this is test message!'); if($this->email->send()) { echo 'Your email was sent'; } else { show_error($this->email->print_debugger()); } } ...

    Read the article

  • any open source instant messenger?

    - by George2
    Hello everyone, I need to develop an instant messenger (like MSN Messagner, but only simple and basic function is fine), based on .Net (C#). I want to integrate the instant messenger with my current web site user. I want to know any open source (better C#) instant messenger to reference? BTW: some of the users are using internal IP address (behind a gateway or proxy, like 10.10.xxx.xxx) -- so in this scenario two users can not use point to point message transfer if both of them are behind a gateway? And I think I have to develop a server which acts as an intermediate party to transfer message between two users, correct? thanks in advance, George

    Read the article

  • wget: retrieving files recursively

    - by Shadow
    When using wget with the recursive option turned on I am getting an error message when it is trying to download a file. It thinks the link is a downloadable file when in reality it should just be following it to get to the page that actually contains the files that I want. wget -r -l 16 --accept=jpg website.com The error message is: .... since it should be rejected. This usually occurs when the website link it is trying to fetch ends with a sql statement. The problem however doesn't occur when using the very same wget command on that link. I want to know how exactly it is trying to fetch the pages. I guess I could always take a poke around the source although I don't know how messy the project is.

    Read the article

  • Are string resource ID values guaranteed to be consistent over different projects?

    - by jax
    I have some messages being passed back from my server through php. The problem is that the messages are in English and if the user is using another language they will still get the message in English. So I had an idea that maybe instead of passing back the message I would instead pass the String resource Id from the android app, that way the app will get the correct string id for their language. I will use this in a number of apps so I just want to know if the string id is guaranteed to be the same across different android projects?

    Read the article

  • How is executed a SendMessage from a different thread?

    - by Lorenzo
    When we send a message, "if the specified window was created by the calling thread, the window procedure is called immediately as a subroutine". But "if the specified window was created by a different thread, the system switches to that thread and calls the appropriate window procedure. Messages sent between threads are processed only when the receiving thread executes message retrieval code." (taken from MSDN documentation for SendMessage). Now, I don't understand how (or, more appropriately, when) the target windows procedure is called. Of course the target thread will not be preempted (the program counter is not changed). I presume that the call will happen during some wait function (like GetMessage or PeekMessage), it is true? That process is documented in detail somewhere?

    Read the article

  • Vim plugin Align fails to work. Can it be installed without vimball?

    - by Leonard
    I've happily installed the vim Align plugin on my home computer, but on the Red Hat servers at work, the installation doesn't work. The servers at work have a very old copy (2006) of vimball, which from Googling I know doesn't support more recent vimballs, including Align. I can't get the systems group (IT department) to upgrade vimball, so I thought perhaps I could simply copy the various files into ~/.vim/plugin by hand. I copied the 3 files from my home system AlignMapsPlugin.vim AlignPlugin.vim cecutil.vim, but when I attempt to use Align from within vim I get the following error message E117: Unknown function: Align#Align I know that it's seeing the plugin, because when I remove the plugin the error message is different (it says "Not an editor command Align"). Is there a workaround for this? I love "Align" and would sure like to use it at work as well as at home.

    Read the article

  • C++ converting hexadecimal md5 hash to decimal integer

    - by Zackery
    I'm doing Elgamal Signature Scheme and I need to use the decimal hash value from the message to compute S for signature generation. string hash = md5(message); cout << hash << endl; NTL::ZZ msgHash = strtol(hash.c_str(), NULL, 16); cout << msgHash << endl; There are no integer large enough to contain the value of 32 byte hexadecimal hash, and so I tried big integer from NTL library but it didn't work out because you cannot assign long integer to NTL::ZZ type. Is there any good solution to this? I'm doing this with visual C++ in Visual Studio 2013.

    Read the article

  • How can I get rails to not render escaped quotes as \&quot;

    - by James
    In my layout I have <% @current_user.popups.each do |p| %> <% content_for :script do %> <%= "$(document).ready ( function() { $.jGrowl(\"#{p.message}\", { sticky: true }) });" %> <% end %> <% end %> And then in the script section I have <%= yield :script %> The problem is that this renders the escaped quotes as \&quot; and javascript doesn't like this. How can I stop this from happening? Or is there another approach to this? I can't use single quotes because I'd like to have some html in the message. I'd appreciate any help.

    Read the article

  • Could not load file or assembly ... or one of its dependencies. An attempt was made to load a progra

    - by Dan
    I am getting the following error message when compiling or attempting to run my application on Windows 7 64 bit. I've scoured the internet and many people have the same error message however none of the solutions address my problem or situation. Using VS 2010. Error 38 Could not load file or assembly 'file:///D:/Projects/Windows Projects/Weld/Components/FileAttachments/FileAttachments/FileAttachments/bin/x86/Debug/FileAttaching.dll' or one of its dependencies. An attempt was made to load a program with an incorrect format. Line 1212, position 5. D:\Projects\Windows Projects\Weld\Weld\Weld.UI\frmMain.resx 1212 5 Weld.UI Ok, so I have 2 projects a UI project and a FileAttachment project. UI project has a reference to FileAttachment project. When I compile UI project in "Any CPU" mode everything works fine and it runs. I assume 'Any CPU' will run in 64bit mode when I compile as that is the platform I am using. I want to run/compile as x86 so I try to do that, so I change configuration for all projects to x86 and verify that these configurations are compiling to x86. I compile and get the error as stated above. I find it odd that it compiles and works fine in 64bit but not 32bit. However when compiled and deployed to users as 'Any CPU', if these users have x86 it still works for them no problem. I just can't compile or run as x86 on my PC. Again, I can compile as Any CPU and deploy to a 32bit PC no problem. Neither project are referencing any 64bit only dlls. Both projects are verified to be targetting 32bit dll's and .NET Framework assemblies. I need to compile and run this locally under 32bit mode. I need JIT edit/continue among other things. Here is the line of code in the resx file that is causing the problem: </data> <data name="Appearance17.Image" type="System.Drawing.Bitmap, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64"> <value> The resx file is verified to be generated for .NET 2.0 amnd is only referencing .NET 2.0 assemblies and not .NET 4.0 versions. Any ideas here? I've searched the net and have found hundreds of people with the same error message but a different problem.

    Read the article

  • Warning: non-integer #successes in a binomial glm! (survey packages)

    - by longrob
    I am using the twang package to create propensity scores, which are used as weigtings in a binomial glm using survey::svyglm. The code looks something like this: pscore <- ps(ppci ~ var1+var2+.........., data=dt....) dt$w <- get.weights(pscore, stop.method="es.mean") design.ps <- svydesign(ids=~1, weights=~w, data=dt,) glm1 <- svyglm(m30 ~ ppci, design=design.ps,family=binomial) This produces the following warning: Warning message: In eval(expr, envir, enclos) : non-integer #successes in a binomial glm! Does anyone know what I could be doing wrong ? I wasn't sure if this message would be better on stats.SE, but on balance I thought I would try here first.

    Read the article

  • Return from parent sub in Perl

    - by JS Bangs
    I want to write a subroutine which causes the caller to return under certain conditions. This is meant to be used as a shortcut for validating input to a function. What I have so far is: sub needs($$) { my ($condition, $message) = @_; if (not $condition) { print "$message\n"; # would like to return from the *parent* here } return $condition; } sub run_find { my $arg = shift @_; needs $arg, "arg required" or return; needs exists $lang{$arg}, "No such language: $arg" or return; # etc. } The advantage of returning from the caller in needs would then be to avoid having to write the repetitive or return inside run_find and similar functions.

    Read the article

  • XCode debugging. How can I see where my code fails ? I get no stacktrace...

    - by P5ycH0
    Currently I am struggling to find out where my code fails. Xcode sometimes gives me a stacktrace, but currently is doesn't. I just get an error msg in my console like: *** -[CFString copyWithZone:]: message sent to deallocated instance 0xbe10d80. But sometimes I don't get an error message in my console at all when my app crashes. How can I figure out where the problem acually occurs? How do you guys locate your problems? How do I get XCode to give me stacktraces?

    Read the article

  • Using variables in Tasker

    - by Waza_Be
    I am trying to create a Tasker plugin. Everything is fine, and works pretty well. I can configure a String to be sent in my app by using EditActivity and this code, following the examples: resultIntent.putExtra(com.twofortyfouram.locale.Intent.EXTRA_BUNDLE,PluginBundleManager.generateBundle(getApplicationContext(),message)); resultIntent.putExtra(com.twofortyfouram.locale.Intent.EXTRA_STRING_BLURB,generateBlurb(getApplicationContext(), message)); setResult(RESULT_OK, resultIntent); The problem comes when I want to use this code to get the battery level for instance, so I added: resultIntent.putExtra("net.dinglisch.android.tasker.extras.VARIABLE_REPLACE_KEYS",com.twofortyfouram.locale.Intent.EXTRA_STRING_BLURB); but the app is not working and I get a string %BATT as the result, the variable is not replaced... As I haven't found any example, I would be pleased to get some help to make it work.

    Read the article

  • How to post on my friend's Facebook Wall using koala gem??

    - by Cody
    I am trying to post a message on my friend's Facebook wall using Koala Gem in my Web Application. I am trying using the following code @user.put_wall_post("Hey, Welcome to the Web Application!!!!",{:name => "Friend's Name"} ) I have also tried replacing the name of my friend with his Facebook Id, but it is of no help... @user.put_wall_post("Hey, Welcome to the Web Application!!!!",{:name => "10001010101010"} ) But, both the above methods post the message on my wall. What am I wrong with??

    Read the article

  • Which messanging services can BlackBerry apps integrate with?

    - by humble coffee
    I'm in charge of having a BlackBerry app developed that translates the contents of a message from one language to another. So the aim would be to have a button at the bottom of a received message which says 'translate this'. I've heard that this kind of thing is possible using J2ME plus the native BlackBerry API. Can this be done for all kinds of messanging features on the Blackberry, or just some? ie I'm thinking SMS, email and BB messages. Secondly, given that the translation itself is done via a web request, I feel like this should be a fairly lightweight application. Would anyone care to hazard a guess how long it might take an experienced contractor to develop such an app?

    Read the article

  • JSF validateLength question

    - by user337515
    I have a input field with validation to validate the max and min length <h:inputText id="LABEL_ID" styleClass="textboxsmall" value="#{sampleDatatableBean.accessionLabelId}" maxlength="5"> <f:validateLength minimum="4" maximum="5" /> </h:inputText> <br/><h:message id="LABEL_ID_MSG" styleClass="errorMessage" for="LABEL_ID" /> It validates but I get the below message: "Value is less than allowable minimum of {0}" Shouldn't {0} be replaced by value from minimum? Not sure why its not picking up the value. Any ideas? Version info: <!DOCTYPE taglib PUBLIC "-//Sun Microsystems, Inc.//DTD JSP Tag Library 1.2//EN" "http://java.sun.com/dtd/web-jsptaglibrary_1_2.dtd"> <tlib-version>1.0</tlib-version> <jsp-version>1.2</jsp-version>

    Read the article

  • Problems with starting windows service on windows xp SP3

    - by Michiel Peeters
    I'm currently facing a problem which I can not resolve and I really don't know what to do anymore. When I'm trying to start the service I receive the message: "The service is started but again also stopped, this because that some of the services will stop if they have nothing to do, for example the performance logs and the alerts service". I've looked into the Windows Logs but nothing is written there which could describe why my service is all the time stopping. I've also tried to fire the windows service via the command prompt which gives me the message: "The service is not started, but the service didn't return any faults.". I've tried to remove all keys which references to my service, which didn't resolve the issue. I've searched on google (maybe not good enough) to find an answer but I didn't found any. I did found some websites which describes what I could do, but all of these suggestions didn't work. This is kinda ** because I do not know where to look. I do not have any error message, i do not have any id which i can use to search on. I really don't know where to start and I hope you guys can help me on this one. Detailed explanation about the windows service OS: Windows XP SP3 .Net Framework: .Net 4.0 Client Profile Language: C# Development environment: Visual Studio 2010 Professional (but Visual Studio 2012 RC is installed) Communications: WCF (Named Pipes), WCF (BasicHTTPBinding) Named Pipes: I have chosen for this solution because I wanted to communicate from a windows service to a windows form application. It worked now for quite some time but suddenly my windows service shuts it self down and I couldn't restart it anymore. There are two named pipes services implemented: An event service which will send any notification to the windows form application and an management service which gives my windows form application the possibility to maintain my windows service. BasicHTTPBinding: The basic http binding makes the connection to a central server. This connection is then used for streaming information from the client to the server. I do not know which additional information you will need, but if you guys need something then I'll try to give it as detailed as possible. Thank you in advance.

    Read the article

  • Get with the ajax data into a php file

    - by Max Torstensson
    I'm trying to build a login system with ajax and php. I use a log-view where I then save the data in ajax which brings into my doLogin.php (php file). My problem is that php file should never be any ajax data for when I build it into a class and a function VIEW: public function DoLoginBox() { //inloggning form-tagg... return '<p>&nbsp;</p> <div id="content"> <h1>Login Form</h1> <form id="form1" name="form1" action="Handler/doLogin.php" method="post"> <p> <label for="username">Username: </label> <input type="text" name="username" id="username" /> </p> <p> <label for="password">Password: </label> <input type="password" name="password" id="password" /> </p> <p> <input type="submit" id="login" name="login" /> </p> </form> <div id="message"></div> </div>'; } AJAX: <script type="text/javascript"> $(document).ready(function() { $("#login").click(function() { var action = $("#form1").attr('action'); var form_data = { username: $("#username").val(), password: $("#password").val(), is_ajax: 1 }; $.ajax({ type: "POST", url: action, data: form_data, success: function(response) { if(response == 'success') $("#form1").slideUp('slow', function() { $("#message").html("<p class='success'>You have logged in successfully!</p>"); }); else $("#message").html("<p class='error'>Invalid username and/or password.</p>"); } }); return false; }); }); </script PHP: <?php require_once ("UserHandler.php"); class DoLogingHandler{ public function Login (){ $is_ajax = !empty($_REQUEST['is_ajax']); if(isset($is_ajax) && $is_ajax) { $username = $_REQUEST['username']; $password = $_REQUEST['password']; $UserHandler = new UserHandler(); $UserHandler -> controllDB($username,$password); if($username == 'demo' && $password == 'demo') { echo "success"; } } } } ` $DoLogingHandler = new DoLogingHandler(); $DoLogingHandler-Login(); ?

    Read the article

  • Auto Re-Running of Tests that fail

    - by Tangopop
    I have a set of Selenium/MbUnit Tests that work fine, but tend to take a while to run (over 4 hours) A problem i am finding is that about 1 in 20 test seems to timeout when running. I have confirmed the Selenium GRID is working and the Selenium RC's are all fine, it just seems to be a qwerk of the system. What is really annoying though is that if i run these tests again they will usually pass. What i want to know is if there is a way for me to auto rerun the tests (probably in the code) if a perticular type of exception is caught... I have attempted to put a few lines of code in the catch statement but i know this is a very hacky way of re running the tests. Here is the code: catch (AssertionException e) { if (e.Message() == "TimeOut") //Something similar to this { this.Test(); } else { verificationErrors.AppendLine(browserList[i] + " :: " + e.Message); } } Any suggestions?

    Read the article

  • Different RegisterWindowMessage() names appear the same

    - by Mike Trader
    Using the C/C++ Windows API RegisterWindowMessage() I am using the name of the application as the message name. Next I call CreatMutex() using the same name so that I can tell if it already exists. If it does, I know this application is already running and not to launch a second instance of it. THis is the operation of my function Running() My confusion is over the message name. It seems that "AutoConvert.exe" and "AutoAppend.exe" are interpreted as the same name. Why?

    Read the article

< Previous Page | 296 297 298 299 300 301 302 303 304 305 306 307  | Next Page >