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  • error CS0133: Assigning the result of a function to a const in C#.net

    - by Greg
    Trying to tidy up scope and avoid possible multiple calls to RegisterWindowMessage. Currently have a class used once with the following member [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)] static extern int RegisterWindowMessage(string lpString); private int m_message = RegisterWindowMessage("MY_MSG"); As we only have one instance this seems ok, but think it would be more tidy to use. With my basic C# understanding this should call RegisterWindowMessage and assign the result to int and not allow it to change. private const int message = RegisterWindowMessage("MY_MSG"); however attempting to do so leads to a error CS0133: The expression being assigned to 'someclass.messageEvent' must be constant so now I'm confused, does this mean the function was being assigned and called each time m_message was used previously, is there something else missing?

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  • jQuery Tools - make tabs collapsible

    - by Cordial
    I'm using a basic integration of jQuery Tools "tabs" function and it's working perfectly for me, but the one thing it seems to lack over jQueryUI is that there's no way I can find to make the tabs collapsible. By that I mean all you need to add is collapsible:true to the jQueryUI tabs function. Does anyone know of a way I could append code to the following jQuery Tools statement to make the tabs collapsible? Any advice appreciated! $("ul.main_tabs").tabs("> .mainpane");

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  • how to get wanted nodes from Stanford Parser nlp

    - by vitaly
    Hello all! My mean problem is that I dont know how to extract nodes from GrammaticalStructure. I am using englishPCFG.ser in java netbeans. My target is o know the quality of the screen like: the screen of iphone 4 is great. I want to extract screen and great. how can i extract the NN (screen) and VP (great) the code that I wrote is: LexicalizedParser lp = new LexicalizedParser("C:\\englishPCFG.ser"); lp.setOptionFlags(new String[]{"-maxLength", "80", "-retainTmpSubcategories"}); String sent ="the screen is very good."; Tree parse = (Tree) lp.apply(Arrays.asList(sent)); parse.pennPrint(); System.out.println(); TreebankLanguagePack tlp = new PennTreebankLanguagePack(); GrammaticalStructureFactory gsf = tlp.grammaticalStructureFactory(); GrammaticalStructure gs = gsf.newGrammaticalStructure(parse); Collection tdl = gs.typedDependenciesCollapsed();

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  • Virtual Mice in C#

    - by jameshong
    Hi guys, Is there anything that we could do for implementing VIRTUAL MICE? I mean, I want to have multiple mice within the whole OS, but they must be all VIRTUAL (I'm not talking about the applications that serve multiple mice driver for PS/2 or USB mice or Microsoft's MultiPoint Mouse SDK.) It is like creating two objects: Mouse mouse1, mouse2; and using them like: mouse1.mouse_event(...); mouse2.mouse_event(...); having a CURSOR on the screen is NOT IMPORTANT. I only need the action (MOUSE DOWN, MOVE, UP for each but separated) and the important thing is that these VIRTUAL MICE should work together, at the same time, click or down-move action with different coordinates(x,y).

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  • Is there a way to put relationships/contraints into CSS?

    - by hekevintran
    In every design tool or art principle I've heard of, relationships are a central theme. By relationships I mean the thing you can do in Adobe Illustrator to specify that the height of one shape is equal to half the height of another. You cannot express this information in CSS. CSS hard-codes all values. Using a language like LESS that allows variables and arithmetic you can get closer to relationships but it's still a CSS variant. This inability in my mind is the biggest problem with CSS. CSS is supposed to be a language that describes the visual component of a Web page but it ignores relationships and contraints, ideas that are at the core of art. How possible is it to imagine a new Web design language that can express relationships and contraints that can be implemented in JavaScript using the current CSS properties?

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  • What is a NullReferenceException in .NET?

    - by John Saunders
    (I'm creating this separate question and answer because every question we get on NullReferenceException is really the same) I have some code and when it executes, it throws a NullReferenceException, saying, "Object reference not set to an instance of an object.". What does this mean, and what can I do about it? Note again, that this is a question meant to focus answers to the canonical "what is a NullReferenceException and why did I get one" question. I do know what a NullReferenceException is, as my answer below demonstrates.

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  • Using numeric_limits::max() in constant expressions

    - by FireAphis
    Hello, I would like to define inside a class a constant which value is the maximum possible int. Something like this: class A { ... static const int ERROR_VALUE = std::numeric_limits<int>::max(); ... } This declaration fails to compile with the following message: numeric.cpp:8: error: 'std::numeric_limits::max()' cannot appear in a constant-expression numeric.cpp:8: error: a function call cannot appear in a constant-expression I understand why this doesn't work, but two things look weird to me: It seems to me a natural decision to use the value in constant expressions. Why did the language designers decide to make max() a function thus not allowing this usage? The spec claims in 18.2.1 that For all members declared static const in the numeric_limits template, specializations shall define these values in such a way that they are usable as integral constant expressions. Doesn't it mean that I should be able to use it in my scenario and doesn't it contradict the error message? Thank you.

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  • Display a "Waiting Menssage" before the POST form send

    - by DomingoSL
    I have a upload file form, when you hit Submit it send the file to my server, but it takes a while, in the mean time i need to tell the user wait in order to get the file uploaded, because he can press Submit again because there is no menssage to prevent him. So, the user fill a few fields in the form, including a file. When he Send the form it sends the variables via POST to the same page: <form action="<?php echo $_SERVER['PHP_SELF']; ?>" enctype="multipart/form-data" method="post"> A php script detect the page now have POST variables a do something. In the time between the send action and the page reload i need to display a mensage, how can i do that??? Thanks It will be nice if you now how to trigger that with colorbox. I know how to use it from a link but no from this POST action.

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  • How to Hide overflow scroller of DIV

    - by Rajesh Rolen- DotNet Developer
    I have set a fix height of DIV and set its overflow-y:scroll but the problem is that if i have got data less than its height event though its showing scroll bar (disabled). please tell me how can i hide it... i mean give me solution so that the scrollbar will only show when data in that DIV is crossing height of DIV.. My code : <div style="overflow-y:scroll; height:290px"> a data grid is here </div>

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  • What is the most basic class that inherits ICollection<T>

    - by Martin Neal
    I need a generic collection class which I can add to, and enumerate over. Since ICollection<T> inherits from IEnumerable<T>, the class really just needs to inherit from ICollection<T>. Is there a simple generic class in the BCL that just inherits ICollection<T>? If not, then what class comes closest? I would guess List<T> which is what I've been using. Is there anything better (by which I mean [smaller/faster/simpler])? Thanks in advance!

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  • can router configuration cause decreasing of download rate?

    - by Behrooz
    my download speed got crazy since i changed the routers IP. but nothing got fixed after "reset factory"ing it. the speed was 1024kb/s(128kB/s) but it is 200kb/s(max) right now. i mean it works good if a request is small(i.e. a HTTP request) but it gets slow if a request has a big response. help me please(it is three days I'm downloading VS2010) http://serverfault.com/questions/135243/ no one on serverfault helped me for posting my question please migrate it to serverfault. thanks.

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  • click feature in Qt

    - by Solitaire
    Hi, I just want to clarify, weather the feature is present or not in Qt. The scenario is like this, I have a list view with items, I want to place the icon to the listview when the item is selected. The selection I mean is, first time when I click item should be selected, next time if I click the same item then it should be selected. Please note It is not the double click. So is there any feature which handles this feature by default, any property or flag which I need to set to listview to behave like this or manual implementation Is required for this.

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  • SCCM: Manage Network Config Baseline

    - by Malnizzle
    I'm new to SCCM and trying to figure out the best way to do things. I want to create a config baseline for defining network settings (e.g. default gateway) for a collection of servers. Is finding the applicable reg key and deploying the config that way the best method, or is there a configuration pack that includes pre-determined values, maybe a third option I am un-aware of? Thank you!

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  • How would you go about tackling this problem?

    - by incrediman
    I have a programming contest coming up in about half a week, and I've been prepping :) I found a bunch of questions from this canadian competition, they're great practice: http://cemc.math.uwaterloo.ca/contests/computing/2009/stage2/day1.pdf I'm looking at problem B ("Dinner"). Any idea where to start? I can't really think of anything besides the naive approach (ie. trying all permutations) which would take too long to be a valid answer. Btw, the language there says c++ and pascal I think, but i don't care what language you use - I mean really all I want is a brief description of how to tackle the problem. Like "use X technique treating each programmer as a Y" or something :)

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  • Rails Authentication

    - by Oluf Nielsen
    Hey, i need some help with rails, again! Last it was about Authlogic.. Well I'm gone a bit backward since.. I mean, Authlogic isn't a Authentcate system i like.. So now i wan't you guys to tell me what you think is the best! I going to use it to a project of mine. Where there has to be a few roles like Admin, User and Guest.. So might you guys can tell me what is good and what is bad..?

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  • Using Glassfish libraries in proprietary software

    - by Lóránt Pintér
    I would like to use some parts of Glassfish in a proprietary software that are under a CDDL + GPLv2 license. Am I allowed to do that? I haven't modified anything in the code of these libraries, so is this OK, or my software, because it uses these libraries, is still considered derivative work, and thus a big no-no? I mean, according to https://jaxb.dev.java.net/, JAXB is also under CDDL + GPLv2, but I know I can freely use that in proprietary software. Is this because CDDL + GPLv2 actually allows that, or is it distributed under a different license when bundled with the JRE?

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  • Know if a variable is a native object in javascript

    - by mck89
    Hi, is there a way to know if a variable passed into a function is a native object? I mean, i have a function that requires only native objects as arguments, for every other type of variable it throws an error. So: func(Array); //works func(String); //works func(Date); //works func(Object); //works ... func([]); //Throwr error func({}); //Throws error I want to know if there's a way to distinguish between native objects and everything else.

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  • How to add a dynamic library to Android?

    - by Malcolm
    I want to add a non-native shared library to Android so every application on the device would be able to use it. I mean using packaged classes just like a core library as if they were present in the application itself. I studied Android source code to figure out a way to add a new path to the application ClassLoader and found out that it is created during startup and there's no way to change the paths later. I can use my own ClassLoader, but all I will get after loading a class will be a reference to a Class object. This way I will be bound to work through reflection mechanism, which is slower than the native execution system. Is there any way to organise a shared library on Android?

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  • Explanation of JAXB error: Invalid byte 1 of 1-byte UTF-8 sequence

    - by Marcus
    We're parsing an XML document using JAXB and get this error: [org.xml.sax.SAXParseException: Invalid byte 1 of 1-byte UTF-8 sequence.] at javax.xml.bind.helpers.AbstractUnmarshallerImpl.createUnmarshalException(AbstractUnmarshallerImpl.java:315) What exactly does this mean and how can we resolve this?? We are executing the code as: jaxbContext = JAXBContext.newInstance(Results.class); Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); unmarshaller.setSchema(getSchema()); results = (Results) unmarshaller.unmarshal(new FileInputStream(inputFile)); Update Issue appears to be due to this "funny" character in the XML file: ¿ Why would this cause such a problem??

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  • Archiving an Entire Rails Site

    - by Pygmalion
    I have a Ruby on Rails site that was only needed for a short period of time during which users added various objects to a mySQL database, commenting on them, associating themselves with them, etc. etc. etc. The question is this: the site is no longer needed until a week next year around this time when I will clear the database and use it again (starting from scratch). What's the best way to archive the current site so that the existing content is still viewable but no new content can be added? By best way, I mean the method by which the least system resources will be used, the server will be the safest, etc. Any suggestions?

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  • Java : Storing Data in Array Of Object from JOptionPane Dialog

    - by Bader
    hi guys i need to know how i can insert data inside objects inside an array of objects using my already made Set methods. i need to know how should i do it through user , i mean JOptionPane input dialog [code] student[] s=new student[5]; for (int i=1 ; i <= s.length ;i++) { s[i] = new student(i,"AAA","Ecommerce",0.0); } for (int i=1; i<=s.length;i++) { name = JOptionPane.showInputDialog("Please Write Name for student n " + i); major = JOptionPane.showInputDialog("Please Write Major for student n " + i); gpa =Double.parseDouble(JOptionPane.showInputDialog("Please Write GPA for student n " +i)); s[i]=new student(i,name,major,gpa); } [/code] i tried to do vars here that get data from user by JOptionPane, but it seems that i only use my already made constructor , not the Set methods. i need to use the methods because it has some validation code inside it. any ideas ?

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  • hierarchical clustering with gene expression matrix in python

    - by user248237
    how can I do a hierarchical clustering (in this case for gene expression data) in Python in a way that shows the matrix of gene expression values along with the dendrogram? What I mean is like the example here: http://www.mathworks.cn/access/helpdesk/help/toolbox/bioinfo/ug/a1060813239b1.html shown after bullet point 6 (Figure 1), where the dendrogram is plotted to the left of the gene expression matrix, where the rows have been reordered to reflect the clustering. How can I do this in Python using numpy/scipy or other tools? Also, is it computationally practical to do this with a matrix of about 11,000 genes, using euclidean distance as a metric? thanks.

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  • Which OOD approach should I take?

    - by Sorush Rabiee
    According to Niklaus Wirth, Algorithms + Data Structures = Programs. So I use this as a start point to object-oriented modeling and inheritance design: in a way that I separate the 'Objects' from 'Operations'. then look for patterns and inheritance hierarchy. But now after practice I guess it's not a good idea for every modeling problem, because sometimes it's not effective. (I mean there is no possibility of developing (or is very hard to develop) codes of Turing-Completed languages based on this paradigm.) What is your viewpoint for designing an OOD structure as an experienced programmer?

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  • Silverlight isolated storage: what identifies an "application"?

    - by Joe White
    The docs for Silverlight's IsolatedStorageFile.GetUserStoreForApplication just say that the isolated storage is specific to the "application", and that each different application will have its own storage independent of all other "applications" (but with one quota for the entire domain). That's great, but I haven't found anything yet that explains just what "application" is supposed to mean (either in the Silverlight docs or the regular .NET Framework docs). What information does Silverlight, in particular, use to decide that "this is application A" and "this is application B"? Does it just go off the URI to the .xap file, or what?

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  • Filezilla connection error

    - by Kumar P
    I have RHEL 5 lan server with squid 2.6 stable proxy settings, Under this have some windows xp desktops Now i installed filezilla ftp client in windows xp, for give services to my client's websites But i can't connect ftp servers throw filezilla , I set generic proxy too. ( HTTP/1.1 USING CONNECT method ) I get error message like this, Status: Connecting to (ftp hostname) through proxy Status: Connecting to hostname:port... Status: Connection with proxy established, performing handshake... Response: Proxy reply: HTTP/1.0 403 Forbidden How can i solve this problem ?

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