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  • What exactly are signals and slots in Qt?

    - by Jen
    I know how they work conceptually, but how are signals and slots implemented in the Qt framework? Qt Creator treats them as keywords, but are they simply a set of macros, or is a special pre-processor required before these source files can be compiled? In other words, if I use Qt's signal/slot features in my code, can I easily compile it on any C++ compiler?

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  • Overwrite HTTP method with JAX-RS

    - by deamon
    Today's browsers (or HTML < 5) only support HTTP GET and POST, but to communicate RESTful one need PUT and DELETE too. If the workaround should not be to use Ajax, something like a hidden form field is required to overwrite the actual HTTP method. Rails uses the following trick: <input name="_method" type="hidden" value="put" /> Is there a possibility to do something similar with JAX-RS?

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  • Pervasive & Linux

    - by Omega
    I'm interested in quering a Pervasive DB server running on a Windows platform from Linux. Would anyone happen to know if this is possible, what's required and what resources there are for me to read up on it? Thanks!

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  • How to view soap request based on webservice url?

    - by stackoverflowuser
    I need to call SSRS Report WebService using jQuery ajax request. Since the ssrs webservice is SOAP based and considering the example shown for "calling share point web services using jquery" I think I need to pass a soap envelope. Based on the ssrs webservice url how can i find out the soap envelope required by a particular method? Thanks

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  • stats::reorder vs Hmisc::reorder

    - by learnr
    I am trying to get around the strange overlap of stats::reorder vs Hmisc::reorder. Without Hmisc loaded I get the result I want, i.e. an unordered factor: > with(InsectSprays, reorder(spray, count, median)) [1] A A A A A A A A A A A A B B B B B B B B B B B B C C C C C C C C C C C C D D [39] D D D D D D D D D D E E E E E E E E E E E E F F F F F F F F F F F F attr(,"scores") A B C D E F 14.0 16.5 1.5 5.0 3.0 15.0 Levels: C E D A F B Now after loading Hmisc the result is an ordered factor: > library(Hmisc) Loading required package: survival Loading required package: splines Attaching package: 'Hmisc' The following object(s) are masked from 'package:survival': untangle.specials The following object(s) are masked from 'package:base': format.pval, round.POSIXt, trunc.POSIXt, units > with(InsectSprays, reorder(spray, count, median)) [1] A A A A A A A A A A A A B B B B B B B B B B B B C C C C C C C C C C C C D D [39] D D D D D D D D D D E E E E E E E E E E E E F F F F F F F F F F F F Levels: C < E < D < A < F < B In calling stats::reorder directly, I now for some reason get an ordered factor. > with(InsectSprays, stats::reorder(spray, count, median)) [1] A A A A A A A A A A A A B B B B B B B B B B B B C C C C C C C C C C C C D D [39] D D D D D D D D D D E E E E E E E E E E E E F F F F F F F F F F F F Levels: C < E < D < A < F < B Specifying, that I would need an unordered factor results in an error suggesting that stats::reorder is not used? > with(InsectSprays, stats::reorder(spray, count, median, order = FALSE)) Error in FUN(X[[1L]], ...) : unused argument(s) (order = FALSE) So the question really is how do I get an unordered factor with Hmisc loaded?

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  • Fast ruby http library for large XML downloads

    - by Vlad Zloteanu
    I am consuming various XML-over-HTTP web services returning large XML files ( 2MB). What would be the fastest ruby http library to reduce the 'downloading' time? Required features: both GET and POST requests gzip/deflate downloads (Accept-Encoding: deflate, gzip) - very important I am thinking between: open-uri Net::HTTP curb but you can also come with other suggestions. P.S. To parse the response, I am using a pull parser from Nokogiri, so I don't need an integrated solution like rest-client or hpricot.

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  • Where / how often do I need to show trademarks and registration marks for 3rd-party software?

    - by Aidan Ryan
    In the application my company publishes, we refer to 3rd-party software in several places: user manual, in the application UI itself, etc. Are we legally required to display the trademark or registration mark symbols next to the trademarked/registered names of 3rd-party software? If so, must they be displayed every time the name is mentioned, or is it sufficient to acknowledge the registration once (for example, in the application's splash screen or the introduction section of the user manual)?

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  • Android - Nesting ViewFlippers

    - by user286285
    Hi, I want to nest several viewflippers. is this possible? I have not been successful thus far. My first tier flips as required but when I flip to the first nested viewflipper its contents appear blank and I can't "flip" it my views are V1 V2 V3 - H1 , H2, H3 One I flip to V3 vertically ... H1 does not appear. where as H is my Horizontal flipper group. Neil

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  • What is the difference between Sprint and Iteration in SCRUM and length of each Sprint?

    - by kurozakura
    1.Is there a difference between Sprint and an Iteration or one can have Iterations within a Sprint or Sprint is just the terminology used instead of Iteration in SCRUM? It will be helpful if someone can throw some light on this. 2.Suppose there are 4 sprints and you have decided the first sprint will go up to 10days is it required that other 3 sprints should have the same length of the 1st decided sprint's length??.

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  • SmtpClient, send email through smtp.gmail.com, but From another account.

    - by dynback.com
    I wonna send email through gmail smtp, but users should see my corporative "From" SmtpClient smtp = new SmtpClient("smtp.gmail.com", 587); smtp.EnableSsl = true; smtp.Credentials = new NetworkCredential("[email protected]", "pass", "mail.dynback.com"); I am getting SmtpException: "The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required" I heard its all possible and called "Relay", but I am not sure, do i need to put somehow google credentials?

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  • Cross field validation in jsf h:datatable using p:calendar

    - by Matt Broekhuis
    I noticed this question was asked, but it has not been answered correctly. I have a datatable that has two columns start date and end date. Both contain primefaces p:calendar controls in them. I need to ensure that for each row that the date in column1 is not after the date in column2. I would like to tie this into the JSF validation framework, but I'm having trouble. i've tried marking the datatable rowStatePreserved="true" , this allows me to get the values, but something is still wrong as when it fails, all the values in the first row overwrite all the other values. What am I doing wrong, or should I be using a completely different strategy? xhtml code <h:form> <f:event type="postValidate" listener="#{bean.doCrossFieldValidation}"/> <p:dataTable id="eventDaysTable" value="#{course.courseSchedules}" var="_eventDay" styleClass="compactDataTable" > <p:column id="eventDayStartColumn"> <f:facet name="header"> Start </f:facet> <p:calendar id="startDate" required="true" value="#{_eventDay.startTime}" pattern="MM/dd/yyyy hh:mm a"/> </p:column> <p:column id="eventDayEndColumn"> <f:facet name="header"> End </f:facet> <p:calendar id="endDate" required="true" value="#{_eventDay.endTime}" pattern="MM/dd/yyyy hh:mm a"/> </p:column> </p:dataTable> </h:form> validationCode public void doCrossFieldValidation(ComponentSystemEvent cse) { UIData eventsDaysStable = (UIData) cse.getComponent().findComponent("eventDaysTable"); if (null != eventsDaysStable && eventsDaysStable.isRendered()) { Iterator<UIComponent> startDateCalendarIterator = eventsDaysStable.findComponent("eventDayStartColumn").getChildren().iterator(); Iterator<UIComponent> endDateCalendarIterator = eventsDaysStable.findComponent("eventDayEndColumn").getChildren().iterator(); while (startDateCalendarIterator.hasNext() && endDateCalendarIterator.hasNext()) { org.primefaces.component.calendar.Calendar startDateComponent = (org.primefaces.component.calendar.Calendar) startDateCalendarIterator.next(); org.primefaces.component.calendar.Calendar endDateComponent = (org.primefaces.component.calendar.Calendar) endDateCalendarIterator.next(); Date startDate = (Date) startDateComponent.getValue(); Date endDate = (Date) endDateComponent.getValue(); if (null != startDate && null != endDate && startDate.after(endDate)) { eventScheduleChronologyOk = false; startDateComponent.setValid(false); endDateComponent.setValid(false); } } if (!eventScheduleChronologyOk) { showErrorMessage(ProductManagementMessage.PRODUCT_SCHEDULE_OUT_OF_ORDER); } } }

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  • Microsoft Test Manager from Visual Studio 2010 Ultimate

    - by LeeHull
    Anyone know the OS requirements for this? The actual System Requirements mention Windows 7 but after spending the time installing and configuring and finally get it up and running, went to the Testing Center and I get this message. "The Test Management features are not supported on Windows Home Premium." I now have to upgrade my Windows but I want to be sure what version is required

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  • java.lang.illegalstatexception Application was not properly initialized

    - by Anand
    Hi, I am getting the following error when deploying an application on JBoss 4.2.1 7:05:59,673 ERROR [Application Name]StandardWrapper.Throwable java.lang.IllegalStateException: Application was not properly initialized at startup, could not find Factory: javax.faces.context.FacesContextFactory I browsed the net and I found many posts which suggested to add an entry in web.xml but that entry was already there. And all the required libraries are there in web-inf. So any solutions anybody ?

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  • change validate message in data annotation

    - by user276640
    my object has field with data type int. when i put in html form in this textbox letter not number the validator say- The field must be a number. how can i change this messages like this [Required(ErrorMessage = "??????? ????????")] [DisplayName("????????")] public int age { get; set; }

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  • dynamic height and width with swfobject

    - by uswaretech
    swfObject embed has the following signature, swfobject.embedSWF(swfUrlStr, replaceElemIdStr, widthStr, heightStr, swfVersionStr, xiSwfUrlStr, flashvarsObj, parObj, attObj, callbackFn) with width and heigth required attributes, What can I do to signify dynamic height and width.

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  • communication between 2 programs written in different language - Serialization ?

    - by trojanwarrior3000
    when is serialization,marshaling etc required during communication between programs residing across 2 different machines /network/Internet? Suppose I have a client program in java/flash and a server program in C. Can't I implement communication using a custom protocol of my own ? I guess so. When is serialization etc needed?I am aware Java RMI,CORBA etc have these mechanisms. But why? Is it a must? please enlighten me?

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  • How to get a OAuth token for Google Buzz using username and password without showing Googles login p

    - by Witek
    To read Google Buzz activities, an authorization token is required. A web application would redirect to Googles login page, where the user logs in and a token is returned back to the web application. But I have a local Java application without a UI (like a script). This application knows username and password. How to get an authorization token, using this username and password, without presenting the Google login page?

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  • Ant error when trying to build file, can't find tools.jar ??

    - by Derek
    When I run ant it says: Unable to locate tools.jar. Expected to find it in C:\Program Files\Java\jre6\lib\tools.jar Buildfile: build.xml does not exist! Build failed What package can I use to download the file required C:\Program Files\Java\jre6\lib\tools.jar I just downloaded this one: jre-6u19-windows-i586-s.exe but unfortunately it appears that it was not on it...

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  • ASP.NET MVC Controller parameter processing

    - by Leonardo
    In my application I have a string parameter called "shop" that is required in all controllers, but it needs to be transformed using code like this: shop = shop.Replace("-", " ").ToLower(); How can I do this globally for all controllers without repeating this line in over and over? Thanks, Leo

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  • Can't import matplotlib

    - by None
    I installed matplotlib using the Mac disk image installer for MacOS 10.5 and Python 2.5. I installed numpy then tried to import matplotlib but got this error: ImportError: numpy 1.1 or later is required; you have 2.0.0.dev8462. It seems to that version 2.0.0.dev8462 would be later than version 1.1 but I am guessing that matplotlib got confused with the ".dev8462" in the version. Is there any workaround to this?

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