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• Working with sockets in MFC

  - by fanq

  I'm trying to make a MFC application(client) that connects to a server on ("localhost",port 1234), the server replies to the client and the client reads from the server's response. The server is able to receive the data from the client and it sends the reply back to the socket from where it received it, but I am unable to read the reply from within the client. I am making a CAsyncSocket to connect to the server and send data and a CAsyncSocket with overloaded methods onAccet and onReceive to read the reply from the server. Please tell me what I'm doing wrong.

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• Storyboard changing controller (modal) not working

  - by BrandNew

  I have problem with navigation between ViewControllers: here is my storyboard: http://postimg.org/image/dar9pkuvl/ The navigation between controllers in green rectangle works fine, I add to controller number 1 controller number 2 (by addtosubview) and then controllers number 3,4,5 to UIScrollView in controller number 2 ( controller number 2 contain scrollview). Everything work fine but if I click Send buttn on controller 4 nothing happens (It is strange because I was added connection between button and controller in the same way like between controllers 7 and 8). I know it is little bit confusing described, but I hope that someone tell me where is problem. Thanks

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• Messaging in local network with .NET

  - by Richard

  Hi All, I need to implement some form of communication mechanism in my application, to send notifications/messages from one application instance to all the others. This is a normal scenario where someone adds and item or deletes and item and you want to notify other users that this has happened. The application runs on the client and connects to a database on the local network. So its not like all clients access a server instance of the application. So from what I know I could use MessageQueues or some form of Database polling where I have a table that stores all the messages (not ideal). Issue is I need to implement this very quickly, so sadly can't go very complex but need the quickest easiest solution. thanks for the help!

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• networkstream always empty!

  - by ALEX

  hey I'm writing on an Server-Client program but when my client sends something, it never reaches my server! I'm sending like this: public void Send(string s) { char[] chars = s.ToCharArray(); byte[] bytes = chars.CharToByte(); nstream.Write(bytes, 0, bytes.Length); nstream.Flush(); } and Receiving in a background thread like this void CheckIncoming(object dd) { RecievedDelegate d = (RecievedDelegate)dd; try { while (true) { List<byte> bytelist = new List<byte>(); System.Threading.Thread.Sleep(1000); int ssss; ssss = nstream.ReadByte(); if (ssss > 1) { System.Diagnostics.Debugger.Break(); } if (bytelist.Count != 0) { d.Invoke(bytelist.ToArray()); } } } catch (Exception exp) { MSGBOX("ERROR:\n" + exp.Message); } } the ssss int is never 1 whats happening here???

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• Running the script for the 2-nd time, the messages are not retrieved from the mail server

  - by Max Li

  I read the mails from my gmail account with the code following below. import poplib pop_conn = poplib.POP3_SSL('pop.gmail.com') pop_conn.user('user') # result: '+OK send PASS' pop_conn.pass_('password') # result: '+OK Welcome.' print pop_conn.list()[1] pop_conn.quit() It shows me 1 message as expected. However, if I run this script for the second time, I get 0 messages as result. On the server the message is still there and unread. How can I get all the messages also running the script for the second time? For me it behaves as an email client that doesn't download the same mail twice. Is there some flag to force the program to download everything again? I use python 2.7.x on ubuntu 12.10

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• Android-USB Connectivity

  - by neoHacker

  Hi all, I'm in the middle of an android app that need to check whether the device is connected to another system or pendrive through usb and if it is connected i need to send a copy of my database file through usb port. This sis for backing up my database. I have no idea how to prompt for usb connections. I searched the net. But no results!.Can anyone please help. Because i'm stuck here at my project. Thanks in advance.

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• Twisted Matrix and telnet server implementation

  - by ypercube

  I have a project which is essentially a game server where users connect and send text commands via telnet. The code is in C and really old and unmodular and has several bugs and missing features. The main function alone is half the code. I came to the conclusion that rewriting it in TwistedMachine could actually result in faster completement, besides other benefits. So, here is the questions: What packages and modules I should use? I see a "telnet" module inside "protocols" package. I also see "cronch" package with "ssh" and another "telnet" module. I'm a complete novice regarding Python.

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• PHP display progress messages on the fly

  - by XaviEsteve

  Hi everyone, I am working in a tool in PHP that processes a lot of data and takes a while to finish. I would like to keep the user updated with what is going on and the current task processed. What is in your opinion the best way to do it? I've got some ideas but can't decide for the most effective one: The old way: execute a small part of the script and display a page to the user with a Meta Redirect or a JavaScript timer to send a request to continue the script (like /script.php?step=2). Sending AJAX requests constantly to read a server file that PHP keeps updating through fwrite(). Same as above but PHP updates a field in the database instead of saving a file. Does any of those sound good? Any ideas? Thanks!

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• Seeking assistance with Escaping Data for MySQL queries

  - by JM4

  Please don't send me a link to php.net referencing mysql_real_escape_string as the only response. I have read through the page and while I understand the general concepts, I am having some trouble based on how my INSERT statement is currently built. Today, I am using the following: $sql = "INSERT INTO tablename VALUES ('', '$_SESSION['Member1FirstName'], '$_SESSION['Member1LastName'], '$_SESSION['Member1ID'], '$_SESSION['Member2FirstName'], '$_SESSION['Member2LastName'], '$_SESSION['Member2ID'] .... and the list goes on for 20+ members with some other values entered. It seems most people in the examples already have all their data stored in an array. On my site, I accept form inputs, action="" is set to self, php validation takes place and if validation passes, data is stored into SESSION variables on page 2 then redirected to the next page in the process (page 3) (approximately 8-10 pages in the whole process). thanks!

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• Sending parameters to other sites

  - by moustafa

  look here first http://stackoverflow.com/questions/2883338/how-can-i-send-a-date-from-one-site-to-other-sites let me change the question a bit, i didnt really explain myself properly. What i intend to do is get z.php to read a text file called 'sites.txt' which has a list of sites: site1.com/a.php site2.com/b.php site3.com/c.php to execute the urls in the sites in 'sites.txt' i want it to go through siteA.com/z.php?ip=xxx.xxx.xx.xxx&location=UK (z.php will then read 'sites.txt') All sites in the 'sites.txt' file will be executed as site1.com/a.php?ip=xxx.xxx.xx.xxx&location=UK site2.com/b.php?ip=xxx.xxx.xx.xxx&location=UK I hope that makes more sense, i have tried looking around but couldnt find what i was looking for. Thanks for your help so far everyone. site3.com/c.php?ip=xxx.xxx.xx.xxx&location=UK

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• How to run command in the background and notify me via email when done

  - by Abs

  Hello all, I have the following command which will take ages to run (couple of hours). I would like to make it a background process and for it to send me an email when its done. For the cherry on the top, any errors it encountered should write to a text file when an error has occurred? find . -type f -name "*.rm" -exec ./rm2mp3.sh \{} \; -exec rm \{} \; How can I do this with my above command?

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• More HTTP verbs with AS3?

  - by tedw4rd

  I'm developing a social game in Flash with a team of developers. Our server-side guy has developed a really slick RESTful API for the Flash client to talk to. A lot of the client-server interactions involve adding and removing objects from a persistent world, so the API makes extensive use of the PUT and DELETE verbs. The problem is, the URLRequest object in AS3 only supports the GET and POST verbs. We're on a strict schedule, and we'd really rather not have to rewrite the whole API to just use GET and POST. Has anyone come up with a good way to get Flash to send other verbs?

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• sites integration

  - by bassem ala

  hey anyone had this task before ? suppose you have a website called www.a.com and a second www.b.com the the a.com have a button. when you logged in to a.com and click the button you will be send to b.com the question is how can i do this while keeping the credentials of the user when he is sent to b.com i want him automatically logged in to b.com ...PS: every user has an account in a.com he definitely should have an account in b.com .... any ideas please???.... thank u for you ideas and supports :)

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• How online-game clients are able to exchange data through internet so fast?

  - by Kirzilla

  Hello, Let's imagine really simple game... We have a labirinth and two players trying to find out exit in real time through internet. On every move game client should send player's coordinates to server and accept current coordinates of another client. How is it possible to make this exchange so fast (as all modern games do). Ok, we can use memcache or similar technology to reduce data mining operations on server side. We can also use fastest webserver etc., but we still will have problems with timings. So, the questions are... What protocol game clients are usually using for exchanging information with server? What server technologies are coming to solve this problem? What algorithms are applied for fighting with delays during game etc. PS: Sorry for my English and I hope that my question is clear. Thank you.

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• How should I display invalid options?

  - by mafutrct

  I've got a WinForms client-server app that displays various offers in a list. Every user (client) has a "rating". An offer consists of various data including a minimum and maximum rating. If a user's rating does not fall in that interval, he should not be able to take the offer. Of course I could just perform some server filtering and send a list of offers prefiltered for each user to the client application. But that would surely, and rightfully, lead to confused requests "Why isn't this offer showing up? I know it exists, it shows up on [other user]'s screen." How should I handle this? My favorite solution so far is to grey out the offer and add a tooltip "You can't take this offer because your rating is too high/low" while displaying greyed-out offers at the bottom of the list to leave the actually valid offers easily visible on top of the list.

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• Threading and cores

  - by Matt

  If I have X cores on my machine and I start X threads. Let's assume for the sake of argument that each thread is completely separated in terms of the memory, hdd, etc it uses. Is the OS going to know to send each thread to a core or do more time slicing on one core for multiple threads. What the question boils down to, is if I have X cores and my program must do independent calculations, should I start X threads, will they each get piped to a core, or is the presumption that because I have X cores I can start X threads completely wrong? I'm thinking it is. This is with C# --

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• In-App review feature in iPhone App

  - by boreas

  I have recently seen in some Apps that review and rating (with 5 stars) can be integrated into the app. Does anyone have an idea how this is done? e.g. with a http request? More specific: Can I create a view in my App with a UITextField and a Button, so that when the user writes his review in the textfield and click send, the review should be posted to the "Customer Reviews" in the App Store? and the rating should also be done inside the App similarly.

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• what are the various approaches for generating PDFs?

  - by andthereitgoes

  I have an idea for an app that would take some flash content which contains graphics and images like various geometric shapes and polygons and some random images and convert them to PDF. Also, since I envision this app to be used my multiple users I want this process to be quick and scalable. One possible solution I could think of is have a small flash client with the capability of assembling the above mentioned graphics and images. Generate some sort of XML, send it to a server running a Java process which could render the PDF using iText. I was wondering what are the other possible ways to do it or the best practices. Technology isn't an issue; open source or commercial. I am looking for ideas to make the process fast and scalable. Most importantly, I don't want the back end server side PDF render engine to constraint the flash client capabilities. I would appreciate if you could share your tech stack idea. Thanks a lot!

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• Simple Communication between 2 instances of application

  - by KyleGobel

  I have a WPF application that can take a few optional command line arguments. This application is also a single instance application (using a mutex to close any instances if one is already open). What I want for it to do though, is if something tries to open the application with some cmd line args, that the application will do what it's suppose to do with those (in my application it opens different dialogs based on the cmd line). What is the easiest way to achieve this? In psedo code here is what i'm looking for protected override void OnStartup(StartupEventArgs e) { bool mutexIsNew; using (System.Threading.Mutex m = new System.Threading.Mutex(true, "MyApplication", out mutexIsNew)) { //if this is not the first instance of the app if (!mutexIsNew) { //if there is some cmd line args if (e.Args.Length > 0) { //send the args to the older instance so it can handle them SendToOtherInstance(e.Args); //shutdown this new instance Application.Current.Shutdown(); } } } base.OnStartup(e); }

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• maintain formatting entered into an html form?

  - by NickG77

  Im setting up a web form, and I'm trying to have it where visitors can paste their resumes into a text area. Then I want to email the info using php mail(). But the resume info is just stored in the variable as one long string with no formatting. Is there a way I can send the pasted resume text to the client in the resume format? Maintaining all the line breaks and stuff? He wants to avoid having people upload resumes.

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• jquery ajax calls with scope safety

  - by acidzombie24

  My gut tells me that if i am on a laggy server and the user fires two events fast enough on the success function c will be the value of the most recent event causing func1 to use the wrong value. <--- This is a guess, i haven't proved it. Its a feeling. How do i ensure that i use the right value when calling func1? I prefer not to send c to the server and i dont know if or how to serialize the data and deserialize it back. How do i make this code safe? $('.blah').click(function (event) { var c = $(this).closest('.comment'); ... $.ajax({ url: "/u", type: "POST", dataType: "json", data: { ... }, success: function (data) { func1(c. data.blah);//here

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• Site won't open in Facebook App for ios, nor redirect to Safari

  - by user1431811

  I'm not a heavy coder here, so i'll ask my best. We made a brochure about our home town. However users spreading it trough facebook cant open the links when in their facebook app. The app does not send it to safari either. If opened directly from safari it is no problem. The link is http://visit.lodingen360.com Is there anything i can do to the site/index.html/whatever that will make it open in safari when the link is clicked in the facebook app for ios? (that won't affect visiting the site from pc's and so on) Is there anything uiwebview won't read that can force it to safari, so that we can redirect from the thing opened in safari to the site?

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• problem with for xml explicit clause in sql server 2005

  - by harrycode

  I am using for xml explicit clause in sql to send table data as xml from sql to asp.net page. I have created a stored procedure when i run store procedure in sql mgmt studio my xml is same as expected. But when I fetch It in asp.net then Xml returned is broken into two rows if xml exceeds certain character limit. I want result to be in single row. I am unable to figure out why single xml string is broken into two rows. please help

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• Search by nvarchar

  - by ziks

  Hi all. I have this problem. In table I have column which is nvarcar type. and row in this column is row1= 1;6 row2 = 12 row3 =6;5;67 etc... I try to search this column. for example when i send 1 i try to get only row1. I use LIKE but in result set I get row1 and row2. How can I achieved this, any help is appreciated. Tnx...

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• Emailing a picture to a Google App Engine site

  - by Dan Hook

  I would like to create an app such that I can send an email with a JPEG attachment and then display it on my site. I am fairly certain that the Mail API allows me to do this, but if it isn't possible please let me know. My biggest concern is what are the limits on the attachment size my app can receive, and what are the quotas related to receiving email? The email quotas I saw seemed to specify quotas for outgoing email. Is it different for incoming mail?

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