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  • Voice Communication over TCP/IP

    - by Micha
    Hello, I'm currently developing application using DirectSound for communication on an intranet. I've had working solution using UDP but then my boss told me he wants to use TCP/IP for some reason. I've tried to implement it in pretty much the same way as UDP, but with very little success. What I get is basically just noise. 20% of it is the recorded sound and the rest is just weird noise. My guess for the reason is that TCP needs to read all the accepted data several times until it gets the final sound I can play. Now two questions: Am I on the right tracks? Is it even good idea to use TCP/IP for this kind of application (voice conferencing of sorts)? I'm doing it in C# but I don't think this is language specific.

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  • C++ enumerations and compiler dependency

    - by dougie
    I currently have code with an enum where one value is set and the rest are left to be set by the compiler using the previous value +1, or so I hope. Is this functionality within an enumerated type compiler dependant, an example is below to clarify. enum FUNC_ERROR_CODE { FUNC_SUCCESS, FUNC_ERROR_1 = 24, FUNC_ERROR_2, FUNC_ERROR_3 } Is it safe to assume that FUNC_ERROR_2 will have the value 25 and FUNC_ERROR_3 will have the value 26, regardless of compliler used. I'm coding this so as a function can return an integer value, 0 is always success and any other value can signify failure.

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  • make changes to html before append with jquery

    - by Pradyut Bhattacharya
    I m calling a page using ajax and making changes to it using jquery but the changes are not reflected after appending(append) it to a div as the changes are done to the html but the html var remains the same. how do i make the changes to the html var and then append to the DOM if i use the code directly to the DOM then there will be changes in the previous elements in the DOM the code $.ajax({ type: "POST", url: 'more_images.jsp', data: ({uid:uid, aid:aid, imgid:imgid}) , cache: false, success: function(html) { html = $.trim(html); $(html).filter('.corner-all').corner('5px'); $(html).filter('ol.c_album > li .img_c').corner('3px'); $(html).filter("ol.c_album > li ").find('a').attr('target', '_blank'); $('#images_list').append(html); } }); thanks Pradyut

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  • Declare two classes from eachother.

    - by tumba25
    I'm writing a app in NetBeans. I have two classes MyApp_View and MyApp_Functions. The MyApp_View class starts like this public class MyApp_View extends FrameView { MyApp_Functions My_functions = new MyApp_Functions(); public MyApp_View(SingleFrameApplication app) { super(app); In MyApp_Functions I have MyApp_View my_view = new MyApp_View(null); I want to access the public variables in MyApp_View from MyApp_Functions and the public methods in functions from view, but have no success with this. Is this doable? And how?

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  • .htaccess : Forward any link to /index.htm

    - by Kevin
    Hey all, I'd like to do the following: If a user gets to a url or types it in, and it is along the lines of any the following: /path/path/path /path /path/path/ I would like htaccess to forward them to that url + /index.htm before triggering a 404. Also, I would like to ignore this rule for certain paths. Here is what I was trying and wasn't having success: RewriteCond %{REQUEST_URI} !^(admin) RewriteCond %{REQUEST_URI} !^(node) RewriteRule ^/(.*)/$ $1/index.htm [L] Here is how the app is outlined. It is actually a subdirectory within an application as the site is in transition at the moment. ParentApp/ /folder/ /folder/ /Drupal/ /(new application here) /... /...

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  • Python Pari Library?

    - by silinter
    Pari/GP is an excellent library for functions relating to number theory. The problem is that there doesn't seem to be an up to date wrapper for python anywhere around, (pari-python uses an old version of pari) and I'm wondering if anyone knows of some other library/wrapper that is similar to pari or one that uses pari. I'm aware of SAGE, but it's far too large for my needs. GMPY is excellent as well, but there are some intrinsic pari functions that I miss, and I'd much rather use python than the provided GP environment. NZMATH, mpmath, scipy and sympy were all taken into consideration as well. On a related note, does anyone have any suggestions on loading the pari dll itself and using the functions contained in it? I've tried to very little success, other than loading it and learning about function pointers.

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  • How to regex match a string of alnums and hyphens, but which doesn't begin or end with a hyphen?

    - by Shahar Evron
    I have some code validating a string of 1 to 32 characters, which may contain only alpha-numerics and hyphens ('-') but may not begin or end with a hyphen. I'm using PCRE regular expressions & PHP (albeit the PHP part is not really important in this case). Right now the pseudo-code looks like this: if (match("/^[\p{L}0-9][\p{L}0-9-]{0,31}$/u", string) and not match("/-$/", string)) print "success!" That is, I'm checking first that the string is of right contents, doesn't being with a '-' and is of the right length, and then I'm running another test to see that it doesn't end with a '-'. Any suggestions on merging this into a single PCRE regular expression? I've tried using look-ahead / look-behind assertions but couldn't get it to work.

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  • ODBC Linked server in sql 2005 doesn’t work from remote box

    - by mhj96813
    I have a dev workstation with sql 2005 installed and in it I created a linked server to a odbc connection to a clarion database. I can run select statements against it inside sql Mgt studio. When I take a second workstation and connect to the sql on the first box using sql mgt studio, then try the exact same query I get OLE DB provider "MSDASQL" for linked server "liveclarion" returned message "[SoftVelocity Inc.][TopSpeed ODBC Driver][ISAM]ISAM Table Not Found". Any thoughts? It appears to have the same functionality on a second sql server. No remote sql mgt studio connect success in queries against my linked ODBC clarion DB. All done with windows authentication and the same AD user.

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  • How do I convert the below PHP code to VB.NET?

    - by Greg
    How do I convert the below PHP code to VB.NET? <?php $X_HOST ="foo.com"; $X_URL = "/index.php"; $X_PORT ="8080"; $X_USERNAME = "foo"; $X_PASSWORD = "bar"; $s_POST_DATA = "Channel=UK.VODAFONE"; // Channel $s_POST_DATA .= "&Shortcode=12345"; // Shortcode $s_POST_DATA .= "&SourceReference=3456"; // Source Reference $s_POST_DATA .= "&MSISDN=447811111111"; // Phone $s_POST_DATA .= "&Content=test"; // Content $s_POST_DATA .= "&DataType=0"; // Data Type $s_POST_DATA .= "&Premium=1"; // Premium $s_POST_DATA .= "&CampaignID=4321"; // CampaignID $s_Request = "POST ".$X_URL." HTTP/1.0\r\n"; $s_Request .="Host: ".$X_HOST.":".$X_PORT."\r\n"; $s_Request .="Authorization: Basic ".base64_encode($X_USERNAME.":".$X_PASSWORD)."\r\n"; $s_Request .="Content-Type: application/x-www-form-urlencoded\r\n"; $s_Request .="Content-Length: ".strlen($s_POST_DATA)."\r\n"; $s_Request .="\r\n".$s_POST_DATA; //Sends out the request to the server. $fp = fsockopen ($X_HOST, $X_PORT, $errno, $errstr, 30) or die("Error!!!"); fputs ($fp, $s_Request); while (!feof($fp)) { $s_GatewayResponse .= fgets ($fp, 128); } fclose ($fp); //Array of official response codes. $a_Responses = array( "100" => "Server has returned an unspecified error.", "101" => "Server successfully received the request.", "102" => "Server has returned an database error", "103" => "Server has returned an syntax error." ); echo "<HTML>\n<BODY>\n\n"; //Checks for an official response code. foreach ($a_Responses as $s_ResponseCode => $s_ResponseDescription) { if (stristr($s_GatewayResponse, "\n$s_ResponseCode\n")) { echo "A response code of $s_ResponseCode was returned – "; echo $s_ResponseDescription"; $b_CodeReturned = true; } } //Checks for an authorization failure where an official response code has //not been recognized. if (!$b_CodeReturned) { if (stristr($s_GatewayResponse, "HTTP/1.1 401")) { echo "The server rejected your username/password (HTTP 401)."; } else { echo "No recognised response code was returned by the server."; } } echo "\n\n</BODY>\n</HTML>"; ?> and <?php $s_ref = $HTTP_POST_VARS["Reference"]; // Reference $s_trg = $HTTP_POST_VARS["Trigger"]; // trigger $s_shc = $HTTP_POST_VARS["Shortcode"]; // shortcode $s_pho = $HTTP_POST_VARS["MSISDN"]; // MSISDN $s_con = $HTTP_POST_VARS["Content"]; // Content $s_chn = $HTTP_POST_VARS["Channel"]; // Channel $s_pay = $HTTP_POST_VARS["DataType"]; // Data Type $s_dat = $HTTP_POST_VARS["DateReceived"]; // Date Received $s_cam = $HTTP_POST_VARS["CampaignID"]; // CampaignID $b_IsValid = getValidateRequest($s_ref, $s_trg, $s_shc, $s_pho, $s_con, $s_cam, $s_chn, $s_pay, $s_dat); if ($b_IsValid) { $s_ResponseCode = "success"; } else { $s_ResponseCode = "fail"; } exit($s_ResponseCode); /*******************************************************************************/ function getValidateRequest ($s_req_ref, $s_req_trg, $s_req_shc, $s_req_pho, $s_req_con, $s_req_cam, $s_req_chn, $s_req_pay, $s_req_dat) { /* * Stub function to be replaced with whatever process is needed to * process/validate request from server by specific client requirements. */ return(true); } ?> lastly <?php $s_ref = $HTTP_POST_VARS["Reference"]; // Reference $s_sta = $HTTP_POST_VARS["Status"]; // Status $s_dat = $HTTP_POST_VARS["DateDelivered"]; // Date Delivered $b_IsValid = getValidateReceipt($s_ref, $s_sta, $s_dat); if ($b_IsValid) { $s_ResponseCode = "success"; } else { $s_ResponseCode = "fail"; } exit($s_ResponseCode); /*******************************************************************************/ function getValidateReceipt ($s_req_ref, $s_req_sta, $s_req_dat) { /* * Stub function to be replaced with whatever process is needed to * process/validate receipts from server by specific client requirements. */ return(true); } ?> Thank you very much in advance Regards Greg

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  • WCF Runtime Error while using Constructor

    - by Pranesh Nair
    Hi all, I am new to WCF i am using constructor in my WCF service.svc.cs file....It throws this error when i use the constructor The service type provided could not be loaded as a service because it does not have a default (parameter-less) constructor. To fix the problem, add a default constructor to the type, or pass an instance of the type to the host. When i remove the constructor its working fine....But its compulsory that i have to use constructor... This is my code namespace UserAuthentication { [ServiceBehavior(InstanceContextMode=System.ServiceModel.InstanceContextMode.Single)] public class UserAuthentication : UserRepository,IUserAuthentication { private ISqlMapper _mapper; private IRoleRepository _roleRepository; public UserAuthentication(ISqlMapper mapper): base(mapper) { _mapper = mapper; _roleRepository = new RoleRepository(_mapper); } public string EduvisionLogin(EduvisionUser aUser, int SchoolID) { UserRepository sampleCode= new UserRepository(_mapper); sampleCode.Login(aUser); return "Login Success"; } } } can anyone provide ideas or suggestions or sample code hw to resolve this issue...

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  • Spring - Redirect after POST (even with validation errors)

    - by Taylor L
    I'm trying to figure out how to "preserve" the BindingResult so it can be used in a subsequent GET via the Spring <form:errors> tag. The reason I want to do this is because of Google App Engine's SSL limitations. I have a form which is displayed via HTTP and the post is to an HTTPS URL. If I only forward rather than redirect then the user would see the https://whatever.appspot.com/my/form URL. I'm trying to avoid this. Any ideas how to approach this? Below is what I'd like to do, but I only see validation errors when I use return "create". @RequestMapping(value = "/submit", method = RequestMethod.POST) public final String submit( @ModelAttribute("register") @Valid final Register register, final BindingResult binding) { if (binding.hasErrors()) { return "redirect:/register/create"; } return "redirect:/register/success"; }

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  • Silverlight DRY when animating multiple UserControls on main Navigation page.

    - by Tobias op den Brouw
    Hello all. Starting with Silverlight development. Yet to read a good Silverlight book: suggestions welcome. I have a main GUI screen where 7 user controls (menu items) 'swoop' into sight, all along their own path. I have the user controls nicely seperated and behaving well. Having multiple storyboards (1 each for each menuitem) with multiple keyframe animations (X,Y,height, width) in one .XAML is not sitting well with me. Repeating all those property values is hideous, neverthemind maintenance. I've tried to move values into the app.xaml and set animation durations with style keys, but having limited success. Can anyone suggest a nice way of making this cleaner? Refactor the storyboards out to their own control? Property values in resources? Dynamic building in codebehind? Referring me to a how-to site is fine as well. Tx!

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  • Access container page of a component in .net based CT

    - by Huston Lopes
    We are developing a .net based CT based on Broker query Mechanism (filter): ComponentPresentationAssembler cpAssembler = new ComponentPresentationAssembler(Page ID,Page object); In order to pass the page ID, I need to get the access of page on which the component is present. How can I access the page from package? Since this a CT, a component object would be available in page and not a page object. Tried the following piece of code, but without success: string pageURI = _package.GetValue("Page.ID"); Page objPage = (Page)_engine.GetSession().GetObject(pageURI); This is not working as there is no page object. What are the alternatives so that we can access the parent page of component from CT?

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  • jQuery ajax inside a loop problem

    - by steamboy
    Hello, This js loop script always get the last value of ui_item inside a jquery ajax funciton. How can a catch the correct value of each iteration? for (var i = 0; i <= split_files_cb_value_holder.length - 1; i++){ var split_values = split_files_cb_value_holder[i].split(':'); ui_item = split_files_cb_value_holder[i]; $.ajax({ type: "POST", url: "ds/index.php/playlist/check_folder", data: "component_type="+$('#component_type').val()+"&value="+split_values[1], success: function(msg) { console.log(ui_item); //ALWAYS GETS THE LAST VALUE }, error: function() { alert("An error occured while updating. Try again in a while"); } }); } Thanks!

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  • DataAnnotationsModelBinder with MVC2 RTM

    - by yang
    Trying to validate models with DataAnnotations but DefaulModelBinder overrides my Required property error messages and never uses my error messages for invalid data entry. Always show 'value' is invalid for 'property name'. In another question I saw that MVC 2 uses DefaultModelBinder but I couldn't find any class in MVC 2 binaries. I downloaded the source for MVC futures and changed some source to compile it for .Net 4.0 but although I had success to compile, it has compatability problems and doesn't work as expected. Any help is aprreciated.

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  • Computationally intensive scala process using actors hangs uncooperatively

    - by Chick Markley
    I have a computationally intensive scala application that hangs. By hangs I means it is sitting in the process stack using 1% CPU but does not respond to kill -QUIT nor can it be attached via jdb attach. Runs 2-12 hours at 800-900% CPU before it gets stuck The application is using ~10 scala.actors. Until now I have had great success with kill -QUIT but I am bit stumped as to how to proceed. The actors write a fair amount to stdout using println which is redirected to a text file but has not been helpful so far diagnostically. I am just hoping there is some obvious technique when kill -QUIT fails that I am ignorant of. Or just confirmation that having multiple actors println asynchronously is a real bad idea (though I've been doing it for a long time only recently with these results) Details scala 2.8.1 & 2.8.0 mac osx 10.6.5 java version "1.6.0_22" Thanks

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  • Track each request to the website using HttpModule

    - by stacker
    I want to save each request to the website. In general I want to include the following information: User IP, The web site url, user-if-exist, date-time. Response time, response success-failed status. Is it reasonable to collect the 1 and 2 in the same action? (like same HttpModule)? Do you know about any existing structure that I can follow that track every request/response-status to the website? The data need to be logged to sql server.

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  • How to catch printf from a dll?

    - by Xarx
    I've got a C++ console application that uses a third-party dll (jvm.dll, indirectly) that uses printf to print various error messages (Java stacktrace). I need to catch these stacktraces to a string in order to process them further, or at least to see them printed on the console. The thing is that I see the stacktrace only when debugging my application in VisualStudio (VS 2010). When I run my application in the "normal way", i.e. from the command line, nothing is printed on the console. So VS is able to somehow interfere the java output and display it. I need to be able to do the same thing. I've already tried freopen(), but without success. Also, I've found this question on the same problem, but without a clear answer.

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  • Login code sample which has been hacked via SQL Injection, although mysql_real_escape_string...

    - by artmania
    Hi friends, I use CodeIgniter, and having trouble with hacking :( is it possible to make SQL Injection to the login code below: function process_login() { $username = mysql_real_escape_string($this->input->post('username')); $password = mysql_real_escape_string(MD5($this->input->post('password'))); //Check user table $query = $this->db->getwhere('users', array('username'=>$username, 'password'=>$password)); if ($query->num_rows() > 0) { // success login data Am I using the mysql_real_escape_string wrong? or what? Appreciate helps!

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  • Trouble using genericra to integrate activemq and glassfish when using failover protocol

    - by Kyle
    Hi, I'm attempting to use activemq in glassfish using the genericra resource adapter provided with glassfish 2.1. I have found a few pages with helpful information including http://activemq.apache.org/sjsas-with-genericjmsra.html. I have actually had success and been able to get MDBs to use activemq as their JMS provider, but I'm running into an issue as I'm trying to do some more complicated configuration. I want to set up a master-slave configuration, which would require my clients to use a brokerURL of failover:(tcp://broker1:61616,tcp://broker2:61616). In order to do this, I set the following property when calling asadmin create-resource-adapter-config (I have to escape '=' and ':'): ConnectionFactoryProperties=brokerURL\=failover\:(tcp\://127.0.0.1\:61616,tcp://127.0.0.1\:61617) However, I am now getting a StringIndexOutOfBoundsException when my application starts up. I suspect the comma in between the two URLs is the culprit, since this works fine: brokerURL\=failover\:(tcp\://127.0.0.1\:61616) Just wondering if anyone has dealt with this issue before. Also wondering if there is a better way to integrate with glassfish than using the generic resource adapter.

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  • Animate the enabling of a UIBarButtonItem?

    - by Michael Brewer
    Is there a way to animate enabling or disabling a button? I've tried the following with no success. I'm guessing at this point that the enabled property cannot be animated like opacity can – but I hope I'm wrong. [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:1.0f]; theButton.enabled = YES; [UIView setAnimationDelegate:self]; [UIView commitAnimations]; I can't believe there isn't a setEnabled:(BOOL)enabled animated:(BOOL)animated method.

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  • How do I create a web service with rails?

    - by NotDan
    I have a silverlight application that needs to talk to a rails app to add a record. I have been able to get the silverlight app to successfully do the POST assuming everything goes good. Now, however, I need to be able to make it more robust and have the rails app return error/success messages to the silverlight app in a format it can read (xml maybe?). I can modify the rails app and silverlight app as needed. What is the best way to accomplish this with rails?

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  • problem in return value from server to client in ajax useing zend-framework

    - by user1400
    hello i try to use ajax and zend in my application , i could pass variable to server but i can not get data from server , it does not return values, it return all html code page, where is my mistake? $('#myForm').submit(function($e){ $e.preventDefault(); var $paramToServer=$("#myForm").serialize(); $.ajax({ type:'POST', url:'test', data:$paramToServer , success:function(re){ var res = $.evalJSON(re); console.log(res.id); // to see in firebog }, dataType:'json' }); }); public function testAction() { // action body $this->_helper->getHelper('viewRenderer')->setNoRender(); // If you use layout, disable it Zend_Layout::getMvcInstance()->disableLayout(); $name=$this->getRequest()->getParam ( 'name' ); //pass $name to server $return = array( 'id' => '5', 'family' => 'hello ', ); $return = Zend_Json::encode( $return); // Response $this->getResponse()->setBody($return); }

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  • jquery ajax request is Forbidden in FF 3.6.2 and IE. How to fix (any workaround)?

    - by 1gn1ter
    <script type="text/javascript"> $(function () { $("select#oblast").change(function () { var oblast_id = $("#oblast > option:selected").attr("value"); $("#Rayondiv").hide(); $.ajax({ type: "GET", contentType: "application/json", url: "http://site.com/Regions.aspx/FindGorodByOblastID/", data: 'oblast_id=' + oblast_id, dataType: "json", success: function (data) { if (data.length > 0) { var options = ''; for (p in data) { var gorod = data[p]; options += "<option value='" + gorod.Id + "'>" + gorod.Name + "</option>"; } $("#gorod").removeAttr('disabled').html(options); } else { $("#gorod").attr('disabled', false).html(''); } } }); }); }); </script>

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  • passing request params from jQuery to jersey service using json

    - by ccduga
    hi, im trying to POST (cross domain) some data to a jersey web service and retrieve a response (a GenericEntity object). The post successfully gets mapped to my jersey endpoint however when i pull the parameters from the request they are empty.. $ .ajax({ type: "POST", dataType: "application/json; charset=utf-8", url: jerseyNewUserUrl+'?jsoncallback=?', data:{'id':id, 'firstname':firstname,'lastname':lastname}, success: function(data, textStatus) { $('#jsonResult').html("some data: " + data.responseMsg); }, error: function ( XMLHttpRequest, textStatus, errorThrown){ alert('error'); } }); this is my jersey endpoint.. @POST @Produces( { "application/x-javascript", MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML }) @Path("/new") public JSONWithPadding addNewUser(@QueryParam("jsoncallback") @DefaultValue("empty") final String argJsonCallback, @QueryParam("id") final String argID, @QueryParam("firstname") final String argFirstName, @QueryParam("lastname") final String argLastName) is there something missing from my $.ajax call?

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