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  • Using Qtcreator (with Qwt), really basic stuff

    - by Dago
    I'm trying to make a Qt program using Qtcreator and Qwt for plotting. I've never used Qtcreator before. I've created a mainwindow and added a Qwtplot widget there (object name: qwtPlot). The widget shows up in the program when I compile and run it. But theres no mention of the qwtPlot object anywhere in the (autogenerated) code so I assume it is being added at compile time from the .ui xml file (or something). My question is that... how do I modify/change the qwtPlot object? Or where should I place the code. I'm having a hard time articulating my question but the question basically is "How do I do anything with the qwtPlot widget which is created (graphically) with Qtcreator?". I've checked some tutorials but in the tutorials they add the widgets manually in the code, but I'd like to use Qtcreator (because my UI will be fairly complicated). This whole Qtcreator is pretty confusing...

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  • Realtime antivirus software for Windows Server 2008 R2

    - by Robert Koritnik
    Microsoft's Forefront Client Security doesn't install on Windows Server 2008 R2. I'm talking specifically about FCS without update server that updates via Windows Update: clientsetup /nomom This installation doesn't work on a server operating system. Hence the question. So the question is: Which realtime antivirus is Windows Server 2008 R2 installable?

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  • How can I use images provided by the iPhone OS?

    - by Topher Fangio
    Hello all, First, let me state what brought this question about: I saw the green checkmark icon in this post and I would like to use it in my own application. However, since it looks so much like the UITableViewCellAccessoryDetailDisclosureButton my assumption is that this green checkmark icon is provided by the iPhone OS in some form or fashion. So, my question is: how can I use the green checkmark icon and/or other OS-provided images in my own applications? As a side question: where can I find a list of the OS-provided images (if they even exist)? Thanks very much for any input :-)

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  • A way to avoid deriving from the provider classes in mvc authentication

    - by Shymep
    Looking for the best practice for authentication in MVC I unfortunately didn't find the clear answer to my question. Thinking of the problem I tried to imagine some priciples that could be useful in my design. Well, I would like to use a base AccountController class I want to place all the tables such as "Users", Roles, Rights etc into my own database. But I wouldn't like to implement the standard aspnetdb design (which can be easy got by using aspnet_regsql) So the main question is can I do this without deriving abstract classes like MembershipProvider, RoleProvider etc? What I would prefer not to do is implement all the abstract methods from these classes. The second question is still about the best practice for authentication e.g. for the small projects, for the large ones?

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  • ASP.Net AJAX controls, adding via .ashx page

    - by Matt Dawdy
    Okay, this is a continuation of a previous question of mine, but it is distinct enough to be its own question. Based on user interaction, I'm calling a .ashx handler via a jquery ajax call, and that handler is building some html for me that includes some Telerik controls like a masked textbox (masked for a phone number like "(###) ###-####". I got around all the hurdles of using Render() to get the html output of a server control even when it doesn't have a "Page" object or a ScriptHandler object. However, when I show the control to a user, I see the mask in the text of the textbox, but the mask doesn't "work" in the sense that when a user starts typing, it is as if the mask is really just text. So, my question is, after putting the html code out for a masked textbox, how do I tell whatever javascript is supposed to mask the input to really start masking on that specific control? I really hope this made sense. Please tell me if you need any clarification.

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  • Android - When to use Service

    - by Chris
    This question is related to my previous question: http://stackoverflow.com/questions/2786720/android-service-ping-url So I have an Android app that on the click of a button, opens up a web page. Now, in the background I want to call another http url for gathering stats. My question is does this have to be a service? I know a service is for background tasks that run for an indefinite period of time, while the user is busy doing something else. In my case, all I really need is to get the URL in the background, not show it to the user, instead show the web page to the user. Can I just not write code to get contents of the http url and fire up the activity that displays the web page? Coz all I want is to get the url in the background and be done with it. Or does this have to be done using the Service class? I am confused. Thanks Chris

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  • Faith and Godaddy [closed]

    - by yuval
    Let's remove the capitalizations from the name GoDaddy - the hosting company: godaddy. Now let's look at the spacing a little differently: god addy, and capitalize: God Addy: God Addy: The address of God Did anybody notice this? How many negative votes will this question get? How long until someone closes the discussion on this question? All of this and more... NOW! Someone favorited this! woo! In addition to my serious and intelligent previous question: Who came first, the chicken or the egg?

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  • Jquery each loop with json array

    - by Ben
    I'm trying to use Jquery's each loop to go through this Json and add it to a div named #contentHere. The Json is as follows: { "justIn": [ { "textId": "123", "text": "Hello", "textType": "Greeting" }, { "textId": "514", "text":"What's up?", "textType": "Question" }, { "textId": "122", "text":"Come over here", "textType": "Order" } ], "recent": [ { "textId": "1255", "text": "Hello", "textType": "Greeting" }, { "textId": "6564", "text":"What's up?", "textType": "Question" }, { "textId": "0192", "text":"Come over here", "textType": "Order" } ], "old": [ { "textId": "5213", "text": "Hello", "textType": "Greeting" }, { "textId": "9758", "text":"What's up?", "textType": "Question" }, { "textId": "7655", "text":"Come over here", "textType": "Order" } ] } I'm getting this Json through use of this code: $.get("data.php", function(data){ }) Any solutions?

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  • If you have an application localized in pt-br and pt-pt, what language you should choose if the syst

    - by Sorin Sbarnea
    If you have an application localized in pt-br and pt-pt, what language you should choose if the system is reporting only pt code (generic Portuguese)? This question is independent of the nature of the application, desktop, mobile or browser based. Let's assume you are not able to get region information from another source and you have to choose one language as the default one. The question does apply as well for more case including: * pt-pt and pt-br * en-us and en-gb * fr-fr and fr-CA * zh-cn, zh-tw, .... - in fact in this case I know that zh can be used as predominant language for Simplified Chinese where full code is zh-hans. For zh-tw, zh-hant-tw, zh-hk, zh-mo the proper code (canonical) should be zh-hant. In fact the question can be extended to: How to I determine the predominant languages for a specified meta-language? I need a solution that will include at least Portuguese, English and French.

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  • Image (?) File(?) Metadata(?) Properties(?)

    - by Marco Parenzan
    Sorry for the question marks, but a simple (I think) question has an impossible solution. From file system, if I click on an image file "Properties | Details tab" I access to many metadata. I need to access from a WPF application to the Description properties (Title, Subject, Rating, Tag and Comment). In particular Tag. I have found a lot of articles, many are very old. A few in WPF and Imaging library. But no one access to that properties. So the question marks: are these properties on image? On file system? I think they are on the image..I don0t undestand where are these properties and why is so difficult to access... Can someone help me? Thanks in advance, Marco Parenzan

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  • Maths: Determining angle in 3D space

    - by 742
    I hope this is the proper location to ask this question which is the same as this one, but expressed as pure math instead of graphically (at least I hope I translated the problem to math correctly). Considering: two vectors that are orthogonal: Up (ux, uy, uz) and Look (lx, ly, lz) a plane P which is perpendicular to Look (hence including Up) Y1 which is the projection of Y (vertical axis) along Look onto P Question: what is the value of the angle between Y1 and Up? As mathematicians will agree, this is a very basic question, but I've been scratching my head on walls now for at least two weeks without being able to visualize the solution... maybe now too old for finding solutions to school exercises. I'm looking for the scalar trigonometric solution, not a solution using a matrix. Thanks.

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  • Funny/clever/creative HTTP error pages

    - by David
    I'm sure many of us have seen or heard of amusing ways to express the standard HTTP errors, like "404 Lost in Cyberspace" instead of "404 File Not Found". What are some of the funniest/cleverest/most creative error pages or error messages you've seen, or can think of? (Somewhat similar to this question on StackOverflow) I know this isn't a specific question with a single answer but it is relevant to site admins who want to keep their visitors happy (or terrified, if you prefer ;-) I'll certainly be looking for inspiration for my own website's error pages.

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  • Console appliction with Multithreading on Single core.

    - by Harsha
    Hello all, I am reposting my question on Multithreading on Single core processor. Original question is: http://stackoverflow.com/questions/2856239/will-multi-threading-increase-the-speed-of-the-calculation-on-single-processor I have been asked a question, At any given time, only one thread is allowed to run on a single core. If so, why people use multithreading in a application. Lets say you are running console application and It is very much possible to write the application to run on the main thread. But still people go for multithreading.

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  • where to ask internet-related questions

    - by John
    Recommended sites for asking Internet related question? I wasn't sure why this had to be locked http://superuser.com/questions/110434/lastpass-not-signing-me-in-for-certain-sites Which site would you recommend to ask that type of question (note: I already asked on LastPass.com forum but that forum is pretty much dead and nobody answers my questions)

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  • Using multithreading for loop

    - by annelie
    Hello, I'm new to threading and want to do something similar to this question: http://stackoverflow.com/questions/100291/speed-up-loop-using-multithreading-in-c-question However, I'm not sure if that solution is the best one for me as I want them to keep running and never finish. (I'm also using .net 3.5 rather than 2.0 as for that question.) I want to do something like this: foreach (Agent agent in AgentList) { // I want to start a new thread for each of these agent.DoProcessLoop(); } --- public void DoProcessLoop() { while (true) { // do the processing // this is things like check folder for new files, update database // if new files found } } Would a ThreadPool be the best solution or is there something that suits this better? Thanks, Annelie

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  • social networking website database management

    - by Anup Prakash
    This could be very basic type of question for you! But for me it is very important. 1) How these(orkut, facebook or other) website store the images in server? Options: a) Keeping all the images in database by converting into bytecode/binary. b) Making a new folder for each user and saving photographs according to their library name. c) Or something else which i(Anup) didn't guess yet. Please reply me. Sayiing thanx to see my question and any many many thanx for answering my question.

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  • Building a complete online payment gateway like Paypal

    - by John Stewart
    So this question isn't about integrating an existing payment gateway into my site. This is more of a architectural question. I want to build a system similar to Paypal. Now I understand that Paypal offers a lot of features under the roof and I can't implement all of them at once. I want to implement the core functionality of Paypal and other such services. So my question is (rather discussion is) around how would one go about building such a system. Some points to discuss: Handle payments through existing banks. I am guessing that I would need access to local bank protocols to get this. Allow users to securely store and process their payments How does Paypal handle the transactions? Thoughts?

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  • How precise is the internal clock of a modern PC?

    - by mafutrct
    I know that 10 years ago, typical clock precision equaled a system-tick, which was in the range of 10-30ms. Over the past years, precision was increased in multiple steps. Nowadays, there are ways to measure time intervals in actual nanoseconds. However, usual frameworks still return time with a precision of only around 15ms. My question is, which steps did increase the precision, how is it possible to measure in nanoseconds, and why are we still often getting less-than-microsecond precision (for instance in .NET). (Disclaimer: It strikes me as odd that this was not asked before, so I guess I missed this question when I searched. Please close and point me to the question in that case, thanks. I believe this belongs on SO and not on any other SOFU site. I understand the difference between precision and accuracy.)

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  • How to save, retrieve and draw an image in webapplication using Java and PostgreSQL?

    - by spderosso
    Given an object X; I want this object to have an image. The image must be stored in the database. I can't store the path, the actual image must be in the database. My question can be answered by answering the following subquestions: a). What type of field should I put in the database? (e.g VARCHAR) b) What type of object should I use for storing and manipulating the image (at an object layer)? (e.g java.awt.Image) c) How do I create an object of the type selected (answer of question b) from the data obtained from the database? d) How do I save an object of the type selected (answer of question b) to the database? e) How do I draw the image on a web page? I am using PostgreSQL, Java and it is a web application. Thanks!

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  • Available message types in JMS?

    - by Caylem
    This is based on a past exam question. The question is asking to describe the four types of message available using JMS. The problem is it says the four, not just four. So it assumes their is only four, no more no less. However according to this site their seems to be five; streams maps text objects bytes *Another book states that XML is another potential type in future versions of JMS. Is XML already available? Am I missing something or is the question just wrong? Thanks.

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  • Make `mount` choose a device

    - by o_O Tync
    I have a mount point — let it be /media/question — and two possible devices: a physical HDD and a remote NFS folder. Sometimes I plug the device in physically, in other cases I mount it via NFS. Is there a way to specify both of them in fstab so that executing mount /media/question will preferably choose physical volume, and when it's not available — NFS?

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  • How can I get a writable path on the iPhone?

    - by Kendall Helmstetter Gelner
    I am posting this question because I had a complete answer for this written out for another post, when I found it did not apply to the original but I thought was too useful to waste. Thus I have also made this a community wiki, so that others may flesh out question and answer(s). If you find the answer useful, please vote up the question - being a community wiki I should not get points for this voting but it will help others find it How can I get a path into which file writes are allowed on the iPhone? You can (misleadingly) write anywhere you like on the Simulator, but on the iPhone you are only allowed to write into specific locations.

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  • Recommended way to manage persistent PHP script processes?

    - by BigglesZX
    First off - hello, this is my first Stack Overflow question so I'll try my best to communicate properly. The title of my question may be a bit ambiguous so let me expand upon it immediately: I'm planning a project which involves taking data inputs from several "streaming" APIs, Twitter being one example. I've got a basic script coded up in PHP which runs indefinitely from the command line, taking input from the Twitter streaming API and doing very basic things with it. My eventual objective is to have several such processes running (perhaps daemonized using the System Daemon PEAR class), and I would like to be able to manage them from some governing process (also a PHP script). By manage I mean basic operations such as stop/start and (most crucially) automatically restarting a process that crashes. I would appreciate any pointers on how best to approach this process management angle. Again, apologies if this question is too expansive - tips on more tightly focused lines of enquiry would be appreciated if necessary. Thanks for reading and I look forward to your answers.

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