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  • JNA-Mapping Delphi Function

    - by Florian
    Hi! How do i map this function with JNA: Delphi code: function getData(InData1: PChar; InData2: PChar; Data: TArray16; var OutData1: PChar; var OutData2: PChar): integer; stdcall; with: TArray16 = array[0..15] of char; The int value that is returned can be 0 for Error or 1 for right execution; My suggestion is: Java code: int getData(String inData1, String inData2, byte[] data, byte[] outData1 byte[] outData2); The problem is that the function of the dll returns 0. I also tried other Datatypes, but it hasn't worked jet. I think the problem is that the dll function can't write to the parameters outData1 and outData2. Who can help me?....Thanks!!

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  • Basic HTTP Authentication using Obj C and Xcode.

    - by Kristiaan
    Hi Everyone, I am hoping someone can help me with a question i have relating to Basic HTTP Authentication in an Xcode 2.3 application. Basically i have a PHP page that is on our server and when called with certain parameters returns data relating to the servers condition etc. i have managed to get a small Xcode application working where by it reads the data from the page and populates an NSTextView with the data. however to make sure this information stays safe i have setup basic HTTP Authentication on the page, but i cannot work out how to provide the username and password in XCode. here is my code to retrieve the page. NSURL *url = [NSURL URLWithString:@"http://www.google.com"]; NSString *content = [NSString stringWIthContentsOfUrl:url]; [myTextView setString:content]; i am still at a very basic beginner level regarding xcode and obj c, so nice simple examples of how i go about this would really be appreciated. Thanks Kris

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  • How to properly match varargs in Mockito

    - by qualidafial
    I've been trying to get to mock a method with vararg parameters using Mockito: interface A { B b(int x, int y, C... c); } A a = mock(A.class); B b = mock(B.class); when(a.b(anyInt(), anyInt(), any(C[].class))).thenReturn(b); assertEquals(b, a.b(1, 2)); This doesn't work, however if I do this instead: when(a.b(anyInt(), anyInt())).thenReturn(b); assertEquals(b, a.b(1, 2)); This works, despite that I have completely omitted the varargs argument when stubbing the method. Any clues?

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  • SignalR: hub invokation request

    - by Yuriy Pogrebnyak
    I'm writing custom SignalR client and I need to implement hub invokation. As I understood from .NET client code, I need to send post request to the following url (after establishing connection with server): http://serverurl/signalr/send?transport=serverSentEvents&connectionId=<my_connection_id> . In request body I need to send json string containing basic information about the invoked method. My question is how should this json look like? I'm trying to send smth like this (again, judging by .NET client code): {"data" : {"Hub" : "hubname", "Method" : "methodname", "Args" : {"message" : "msg"} } } But I get the following error: System.ArgumentNullException: Value cannot be null. Parameter name: s. What am I doing wrong? What are required parameters of sending json and how should it be formatted?

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  • Resizing screenshots/screen captures for inclusion in Beamer

    - by Stephen
    Sorry, this may or may not be a programming question directly, but I am trying to resize screenshots with Imagemagick and Gimp to include in a Beamer presentation, but it comes out even blurrier than the resizing done by LaTeX. For instance, in Beamer I might have a command to rescale the image \includegraphics[width=.5\textwidth]{fig.png}. Using something like \begin{frame} \message{width = \the\textwidth} \message{height = \the\textheight} \end{frame} I have gotten the \textwidth and \textheight parameters in points (345.69548, 261.92444). So I have a script (in Python) that sends a system call to Imagemagick: 'convert %s -resize %.6f@ resized_%s' % (f,a,f) where a is calculated as \textwidth*\textheight*0.5**2. When I then go back into my Beamer presentation and include the resized figure, \includegraphics{resized_fig.png}, the size looks approximately correct but it's super-blurry. I also tried resizing in Gimp (using the GUI) but no luck either... help? Thanks...

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  • JSF 2.0: java based custom component + html table + facelets = data model not updated

    - by mikic
    Hi, I'm having problems getting the data model of a HtmlDataTable to be correctly updated by JSF 2.0 and Facelets. I have created a custom Java-based component that extends HtmlDataTable and dynamically adds columns in the encodeBegin method. @Override public void encodeBegin(FacesContext context) throws IOException { if (this.findComponent("c0") == null) { for (int i = 0; i < 3; i++) { HtmlColumn myNewCol = new HtmlColumn(); myNewCol.setId("c" + i); HtmlInputText myNewText = new HtmlInputText(); myNewText.setId("t" + i); myNewText.setValue("#{row[" + i + "]}"); myNewCol.getChildren().add(myNewText); this.getChildren().add(myNewCol); } } super.encodeBegin(context); } My test page contains the following <h:form id="fromtb"> <test:MatrixTest id="tb" var="row" value="#{MyManagedBean.model}"> </test:MatrixTest> <h:commandButton id="btn" value="Set" action="#{MyManagedBean.mergeInput}"/> </h:form> <h:outputText id="mergedInput" value="#{MyManagedBean.mergedInput}"/> My managed bean class contains the following @ManagedBean(name="MyManagedBean") @SessionScoped public class MyManagedBean { private List model = null; private String mergedInput = null; public MyManagedBean() { model = new ArrayList(); List myFirst = new ArrayList(); myFirst.add(""); myFirst.add(""); myFirst.add(""); model.add(myFirst); List mySecond = new ArrayList(); mySecond.add(""); mySecond.add(""); mySecond.add(""); model.add(mySecond); } public String mergeInput() { StringBuffer myMergedInput = new StringBuffer(); for (Object object : model) { myMergedInput.append(object); } setMergedInput(myMergedInput.toString()); return null; } public List getModel() { return model; } public void setModel(List model) { this.model = model; } public String getMergedInput() { return mergedInput; } public void setMergedInput(String mergedInput) { this.mergedInput = mergedInput; } When invoked, the page is correctly rendered with a table made of 3 columns (added at runtime) and 2 rows (as my data model has 2 rows). However when the user enter some data in the input fields and then click the submit button, the model is not correctly updated and therefore the mergeInput() method creates a sequence of empty strings which is rendered on the same page. I have added some logging to the decode() method of my custom component and I can see that the parameters entered by the user are being posted back with the request, however these parameters are not used to update the data model. If I update the encodeBegin() method of my custom component as follow @Override public void encodeBegin(FacesContext context) throws IOException { super.encodeBegin(context); } and I update the test page as follow <test:MatrixTest id="tb" var="row" value="#{MyManagedBean.model}"> <h:column id="c0"><h:inputText id="t0" value="#{row[0]}"/></h:column> <h:column id="c1"><h:inputText id="t1" value="#{row[1]}"/></h:column> <h:column id="c2"><h:inputText id="t2" value="#{row[2]}"/></h:column> </test:MatrixTest> the page is correctly rendered and this time when the user enters data and submits the form, the underlying data model is correctly updated and the mergeInput() method creates a sequence of strings with the user data. Why does the test case with columns declared in the facelet page works correctly (ie the data model is correctly updated by JSF) where the same does not happen when the columns are created at runtime using the encodeBegin() method? Is there any method I need to invoke or interface I need to extend in order to ensure the data model is correctly updated? I am using this test case to address the issue that is appearing in a much more complex component, therefore I can't achieve the same functionality using a facelet composite component. Please note that this has been done using NetBeans 6.8, JRE 1.6.0u18, GlassFish 3.0. Thanks for your help.

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  • C#: Pass a user-defined type to a Oracle stored procedure

    - by pistacchio
    With reference to http://stackoverflow.com/questions/980324/oracle-variable-number-of-parameters-to-a-stored-procedure I have s stored procedure to insert multiple Users into a User table. The table is defined like: CREATE TABLE "USER" ( "Name" VARCHAR2(50), "Surname" VARCHAR2(50), "Dt_Birth" DATE, ) The stored procedure to insert multiple Users is: type userType is record ( name varchar2(100), ... ); type userList is table of userType index by binary_integer; procedure array_insert (p_userList in userList) is begin forall i in p_userList.first..p_userList.last insert into users (username) values (p_userList(i) ); end array_insert; How can I call the stored procedure from C# passing a userList of userType? Thanks

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  • How to create a UDF that takes a query string and returns the query's resultset

    - by Martin
    I want to create a stored procedure that takes a simple SELECT statement and return the resultset as a CSV string. So the basic idea is get the sql statement from user input, run it using EXEC(@stmt) and convert the resultset to text using cursors. However, as SQLServer doesn't allow: select * from storedprocedure(@sqlStmt) UDF with EXEC(@sqlStmt) so I tried Insert into #tempTable EXEC(@sqlStmt), but this doesn't work (error = "invalid object name #tempTable"). I'm stuck. Could you please shed some light on this matter? Many thanks EDIT: Actually the output (e.g CSV string) is not important. The problem is I don't know how to assign a cursor to the resultset returned by EXEC. SP and UDF do not work with Exec() while creating a temp table before inserting values is impossible without knowing the input statement. I thought of OPENQUERY but it does not accept variables as its parameters.

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  • Testing input fields not available for web service in Visual Web Developer Express

    - by Rob Segal
    I have a web service that I am trying to test in Visual Web Developer Express Edition (Service Pack 1). I am working with two different websites on two different branches from an SVN repository but largely the same code. The web services are the same code but there are some code differences for other features. My problem is that when going to the web service specification page in debug mode (i.e. MyWebService.asmx) there should be text fields for inputting parameters for that web service. On one of these web sites the fields are available. On another they are not available. I don't understand why/how there should be any differences between the two setups.

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  • Should I use vnd.youtube:videoID?

    - by Felix
    While playing around with the emulator, I noticed that when trying to view a YouTube video the browser gives an error saying it can not load the page at vnd.youtube:ngc978y6rCU?some=parameters. I don't have an Android device, but by this I can suppose that launching a VIEW intent with the data URI set to vnd.youtube:VIDEO_ID would launch the default YouTube application and watch that video. Now, my application has to be able to display YouTube videos. Right now I have a custom-made YouTube activity which does just that, but I'm thinking of: Removing my custom activity and just launching a VIEW intent with a vnd.youtube:VIDEO_ID Uri, or Testing whether that Intent is available and using it, or, if it's not available, using my custom activity. Is this a good idea? Does this work at all (as I said I have no Android device, I'll just be borrowing one from a friend to test my final application)? Which way should I go?

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  • Using Python to call Mencoder with some arguments

    - by Manu
    Hello, I'll start by saying that I am very, very new to Python. I used to have a Windows/Dos batch file in order to launch Mencoder with the right set of parameters, without having to type them each time. Things got messy when I tried to improve my script, and I decided that it would be a good opportunity to try coding something in python. I've come up with that : #!/usr/bin/python import sys, os #Path to mencoder mencoder = "C:\Program Files\MPlayer-1.0rc2\mencoder.exe" infile = "holidays.avi" outfile = "holidays (part1).avi" startTime = "00:48:00" length = "00:00:15" commande = "%s %s -ovc copy -oac copy -ss %s -endpos %s -o %s" os.system(commande % (mencoder, infile, startTime, length, outfile)) #Pause raw_input() But that doesn't work, windows complains that "C:\Program" is not recognized command. I've trying putting some "\"" here and there, but that didn't help.

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  • Covariance and Contravariance on the same type argument

    - by William Edmondson
    The C# spec states that an argument type cannot be both covariant and contravariant at the same time. This is apparent when creating a covariant or contravariant interface you decorate your type parameters with "out" or "in" respectively. There is not option that allows both at the same time ("outin"). Is this limitation simply a language specific constraint or are there deeper, more fundamental reasons based in category theory that would make you not want your type to be both covariant and contravariant? Edit: My understanding was that arrays were actually both covariant and contravariant. public class Pet{} public class Cat : Pet{} public class Siamese : Cat{} Cat[] cats = new Cat[10]; Pet[] pets = new Pet[10]; Siamese[] siameseCats = new Siamese[10]; //Cat array is covariant pets = cats; //Cat array is also contravariant since it accepts conversions from wider types cats = siameseCats;

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  • Virtual functions and polymorphism

    - by ritmbo
    Suppose I have this: class A { public: virtual int hello(A a); }; class B : public A { public: int hello(B b){ bla bla }; }; So, A it's an abstract class. 1)In the class B, I'm defining a method that its suppose overrides the A class. But the parameter it's slightly different. I'm not sure about this, is this correct? Maybe because of polymorphism, this is ok but its rather confusing. 2) If I do: A a = new B;, and then a.hello(lol); if "lol" it's not of type B, then it would give compile error?, and if it's of type A from another class C (class C : public A), what would happend? I'm confused about the overriding and virtual thing.. all examples I found work with methods without parameters. Any answer, link, or whatever it's appreciated. thanks pd: sorry for my english

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  • How to Create Site using Sharepoint web services?

    - by Pari
    Hi All, I am tring to create site on sharepoint programatically using Sharepoint Web Services.(C#). I tried Admin.asmx service (CreateSite method). But it's showing error: "An unhandled exception of type 'System.InvalidOperationException' occurred in System.Web.Services.dll". I tried with all possible parameters. Curremtly referring Below Links: http://www.oliebol.org/blog/Lists/Posts/Post.aspx?ID=6 http://msdn.microsoft.com/en-us/library/administration.admin.createsite.aspx My Code: Admin admService = new Admin(); admService.Credentials = new NetworkCredential(username,password,domain); admService.Url = "http://mychserver/_vti_adm/admin.asmx"; admService.PreAuthenticate = true; try { String SitePath = "http://myserver/SiteDirectory/SharepointSampleSite"; admService.CreateSite(SitePath,"First Site", "Sample Site", 1033, "STS#0", "Domain\\username",username,userid, "", ""); } catch (System.Web.Services.Protocols.SoapException ex) { MessageBox.Show("Message:\n" + ex.Message + "\nDetail:\n" +ex.Detail.InnerText + "\nStackTrace:\n" + ex.StackTrace); } Thanx,

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  • Windows Workflow and sql script in declarative config like InRule

    - by Satish
    We have been using InRule for our Rule needs we have found that it does not scale well and so are investigating the Windows Work Flow. Within InRule we could configure pretty much have any task for example our sql scripts and stored procedures where all part of a separate rule config file, I am wondering if there is a similar functionality within windows work flow where I could just call a declarative task and pass it a bunch of parameters – This task should contain the sql script I would be executing , we should be able to change the script at runtime without recompilation to the WF code. Is this possible in Windows Work flow – How can I accomplish this within work flow. Additionally for sql execution within Work Flow, how does it get the connection string. Should it be passed from the calling program – is passing it as input parameter from the Calling app via the Dictionary object the best way or can the work flow code have visibility to my calling program app.config and get the connection string ?

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  • How do I identify the referrer page in ASP.NET?

    - by dotnet-practitioner
    In VS2003, I am trying to find out the particular page where the request is coming from. I want to identify the exact aspx page name. Is there a way to only get the page name or some how strip the page name? Currently I am using the following instruction... string referencepage = HttpContext.Current.Request.UrlReferrer.ToString(); and I get the following result... "http://localhost/MyPage123.aspx?myval1=3333&myval2=4444; I want to get the result back with out any query string parameters and be able to identify the page MyPage123.aspx accurately... How do I do that??

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  • ASP.Net UpdatePanel, want to have html-tag as a parameter

    - by Nordis
    This is my problem, I have one textbox, one button and one label. Everything is inside an updatepanel. Let's say I want to test if a valid html-tag is entered in the textbox when I press the button. In the code-behind I have a method for that. Everythings works just fine, except when I actually enter a html-tag in my textbox. If I test < html, it works. But not if I test . So my question is, doesn't the updatepanel accept html-tags as parameters? Because my breakpoint for the button_click doesn't triggers. Sorry for my bad english.. :)

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  • URL on apache server does not default to the .php file after / has been added

    - by jeffkee
    Generally a url that looks like this: http://www.domain.com/product.php/12/ will open up product.php and serve the /12/ as request parameters, which then my PHP script can process to pull out the right product info. However when I migrated this whole site, after developing it, to a new server, I get a 404 error, because on that server it's not defaulting to the mother directory/file in case of an absence of requested directories. I vaguely remember learning that this is generally a common apache function but I can't seem to recall how to set it up or how to manipulate it.. if there's an .htaccess method to achieve this that would be great.

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  • PHP OOP Concepts (Value Objects / Data Access Objects)

    - by Iuhiz
    Hi, I've just started to learn PHP OOP, previously I have been doing PHP in a procedural manner. I was reading this article and I've got a couple of quick questions, How is the constructor for value objects commonly defined? As one that takes in all "data members" as parameters or stick to the default constructor and use mutator / accessor methods to set / get data members? Is this actually the recommended way to start doing PHP OOP? Cos honestly, the concepts explained in the article was a tad confusing for me. Cheers

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  • Compile-time lookup array creation for ANSI-C?

    - by multiproximus
    A previous programmer preferred to generate large lookup tables (arrays of constants) to save runtime CPU cycles rather than calculating values on the fly. He did this by creating custom Visual C++ projects that were unique for each individual lookup table... which generate array files that are then #included into a completely separate ANSI-C micro-controller (Renesas) project. This approach is fine for his original calculation assumptions, but has become tedious when the input parameters need to be modified, requiring me to recompile all of the Visual C++ projects and re-import those files into the ANSI-C project. What I would like to do is port the Visual C++ source directly into the ANSI-C microcontroller project and let the compiler create the array tables. So, my question is: Can ANSI-C compilers compute and generate lookup arrays during compile time? And if so, how should I go about it? Thanks in advance for your help!

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  • Python: Implementing slicing in __getitem__

    - by nicotine
    I am trying to implement slice functionality for a class I am making that creates a vector representation. I have this code so far, which I believe will properly implement the slice but whenever I do a call like v[4] where v is a vector python returns an error about not having enough parameters. So I am trying to figure out how to define the getitem class to handle both plain indexes and slicing. def __getitem__(self, start, stop, step): indx = start if stop == None: end = start + 1 else: end = stop if step == None: stride = 1 else: stride = step return self.__data[indx:end:stride]

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  • Strange thing about .NET 4.0 filesystem enumeratation functionality

    - by codymanix
    I just read a page of "Whats new .NET Framework 4.0". I have trouble understanding the last paragraph: To remove open handles on enumerated directories or files Create a custom method (or function in Visual Basic) to contain your enumeration code. Apply the MethodImplAttribute attribute with the NoInlining option to the new method. For example: [MethodImplAttribute(MethodImplOptions.NoInlining)] Private void Enumerate() Include the following method calls, to run after your enumeration code: * The GC.Collect() method (no parameters). * The GC.WaitForPendingFinalizers() method. Why the attribute NoInlining? What harm would inlining do here? Why call the garbage collector manually, why not making the enumerator implement IDisposable in the first place? I suspect they use FindFirstFile()/FindNextFile() API calls for the imlementation, so FindClose() has to be called in any case if the enumeration is done.

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  • F# currying efficiency?

    - by Eamon Nerbonne
    I have a function that looks as follows: let isInSet setElems normalize p = normalize p |> (Set.ofList setElems).Contains This function can be used to quickly check whether an element is semantically part of some set; for example, to check if a file path belongs to an html file: let getLowerExtension p = (Path.GetExtension p).ToLowerInvariant() let isHtmlPath = isInSet [".htm"; ".html"; ".xhtml"] getLowerExtension However, when I use a function such as the above, performance is poor since evaluation of the function body as written in "isInSet" seems to be delayed until all parameters are known - in particular, invariant bits such as (Set.ofList setElems).Contains are reevaluated each execution of isHtmlPath. How can best I maintain F#'s succint, readable nature while still getting the more efficient behavior in which the set construction is preevaluated. The above is just an example; I'm looking for a general pattern that avoids bogging me down in implementation details - where possible I'd like to avoid being distracted by details such as the implementation's execution order since that's usually not important to me and kind of undermines a major selling point of functional programming.

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  • Workflow Foundation: How to create Receive activity with custom message in xaml designer?

    - by Petr Felzmann
    I need to have Receive activity which can receive my custom data. I found examples, but all use coded workflows like such public class ProcessRequest : Activity { public ProcessRequest() { Variable request = new Variable { Name = "request" }; Receive receiveRequest = new Receive { ServiceContractName = "IProcessRequest", OperationName = "Foo", CanCreateInstance = true, Content = ReceiveContent.Create(new OutArgument(request)) }; } } The main point is that Receive.Content property. It is not clear for me how I can do it in XAML designer. What I have to set in the dialog of the Content property - Message or Parameters and what to set inside those options? Thanks for the light!

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  • algorithm to use to return a specific range of nodes in a directed graph

    - by GatesReign
    I have a class Graph with two lists types namely nodes and edges I have a function List<int> GetNodesInRange(Graph graph, int Range) when I get these parameters I need an algorithm that will go through the graph and return the list of nodes only as deep (the level) as the range. The algorithm should be able to accommodate large number of nodes and large ranges. Atop this, should I use a similar function List<int> GetNodesInRange(Graph graph, int Range, int selected) I want to be able to search outwards from it, to the number of nodes outwards (range) specified. So in the first function, I expect it to return the nodes placed in the blue box. The other function, if I pass the nodes as in the graph with a range of 1 and it starts at node 5, I want it to return the list of nodes that satisfy this criteria (placed in the orange box)

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