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  • qt custom widgets propertis are not getting updated properly in Qt designer

    - by user553911
    I have created a custom widget. The widget gets loaded fine,the properties appear in QT Designer, Only problem is every time I change the property of Alpha key,the numeric also gets set, Though the accessor functions are different,and the enums are differnet and values are different. Also whenever i check the Form-view code,the values would have got modified. Am i Missing something or this is a designer issue,Any workarounds would be appreciated class key { Q_PROPERTY(AlphKeycode_t AlphKeycode READ AlphKeycode WRITE setAlphKeycode); Q_PROPERTY(bool AlphKey READ isAlph WRITE setAlph); Q_ENUMS(AlphKeycode_t); Q_PROPERTY(NumKeycode_t NumKeycode READ NumeKeycode WRITE setNumKeycode); Q_PROPERTY(bool NumKey READ isNum WRITE setNum); Q_ENUMS(NumKeycode_t); } struct AlphData { QString label; bool isAlphabetic; }; struct NumData { QString label; bool isNumeric; }; AlphData AlphKeyData[] = { {"q",true }, } NumData NumKeyData[] = { {"1", false}, }

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  • Is there a font that can't be recognised by an OCR?

    - by user1820564
    I am trying to write a document that can only be read by humans. The document content can't be copied. For that purpose, I am converting its pages to pictures and adding them back to a PDF file. The main issue is that any OCR program can get back the whole written text, especially that the page is going to be clear (as opposed to a scanned book) which will increase the OCR accuracy. So, is there a font that can't be recognized by an OCR. Otherwise, is there a technique that will make my document only readable by humans, yet unrecognised by an OCR? (for instance, adding a specific background, etc...) Thank you in advance.

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  • Using css "active tab" technique on single page

    - by flash
    I'm building a navigation system using jquery scrollto. I have my navigation menu in a separate file (( navigation.php )). It is included in 5 locations on the first page (( 5 different sections w/ text following each )). I'm trying to figure out a way to have the current "tab" highlight'd. I could hard code the navigation in each location to ensure it shows up the correct way, but I'd rather use the phpinclude() method. The other issue is that each "tab" has it's own unique color (( cmykd )). Here is the alpha version of what I'm doing (( when you click && the page slides, the "active tab" still stays grey -- I'd like it to be the corresponding color )). Hope this all makes sense && thanks in advance !!

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  • .NET vs Mono differences in Development

    - by jason
    I'm looking into Mono and .NET C#, we'll be needing to run the code on Linux Servers in the future when the project is developed. At this point I've been looking at ASP.NET MVC and Mono I run an ubuntu distro and want to do development for a web application, some of the other developers use windows and run other .NET items with Visual Studio. What does Mono not provide that Visual Studio does? If running this on Linux later shouldn't we use Mono Develop ? Is there some third party tools or addin's that might be an issue with Mono later?

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  • C# How to place a comma after each word but the last in the list

    - by user576712
    I totally new to C# and learning as I go. I am stuck on issue which I'm hoping an experienced programmer can help. I have added a CheckedListBox to my form and added a collection of 6 items to it. I need all but the last item selected to have a comma placed beside it, so my question is: how can I tell C# NOT to place a comma beside the last item selected? foreach (object itemChecked in RolesCheckedListBox.CheckedItems) { sw.Write(itemChecked.ToString() + ","); } Thanks for any help received! Dan

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  • select subquery cause mysql server to be unresponsive

    - by Xiao
    DELETE FROM item_measurement WHERE measurement_id IN ( SELECT (-id) AS measurement_id FROM invoice_item WHERE invoice_id = 'A3722' ) I've really tried hard to find what's wrong with the code. I tried to run this in a php page, which doesn't respond. I also tried the same line in phpmyadmin, infinite spinning circle and I had to restart the server(MAMP on Mac 10.9). No error was given in browser/ If I run the delete and select separately, they both finish very quickly. I don't think it's a performance issue because the separate run took < 0.1 sec each. Thanks for any help in advance. Edit: I also found that a simple select statement will also suspend mysql: select * from item_measurement where measurement_id in (select -id from invoice_item where invoice_id='A3722')

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  • Where to install shared DLLs on Windows

    - by BruceCran
    I have a driver which can be installed on Windows (XP/Vista/7). It's accessed via a DLL that applications link to, and which is also a Winsock Provider (WSP). It used to be installed under System32, but having seen advice not to, I changed it to install under ProgramFiles instead. Now, the problem is that people are having to either copy it back into System32 or copy it into the application directory whenever they want to use it in their own applications, because Windows won't search the install directory under ProgramFiles when the application tries to load the DLL. I've been unable to find any Microsoft documentation discussing this issue, so if System32 shouldn't be used then where should shared DLLs be installed?

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  • How to improve performance of opening Microsoft Word when automated from c#?

    - by Abdullah BaMusa
    I have Microsoft Word template that I automated filling it’s fields from my application, and when the user request print I open this template. but creating word application every time user request print after filling fields is very expensive and lead to some delay while opening the template, so I choose to cache the reference to Word then just open the new filled template. that solve the performance issue as opening file is less expensive than recreating Word each time, but this work while the user just close the document not the entire Word application which when happened my reference to Word become invalid and return with exception says: “The RPC server is unavailable” next time request opening template . I tried to subscribe to BeforClosing event but his trigger for Quitting Word as well as Closing documents. My question is how to know if the word is closing document or quit the entire application so I take the proper action, or any hint for another direction of thinking about improve performance of opening word template.

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  • Where is a Web Development Career fueled by Passion? [closed]

    - by JMC Creative
    Quick Background Since learning basic html 5 years ago, I've become completely obsessed with the technology, the logic, and the thrill of solving problems involved with building websites. I am still stuck at a thoroughly non-programming type job, but would really like to move into the field of web programming/design. I have no educational background in the field (was trained as a fine artist and tutor), but in the past few years have progressed fully self-taught (and self-motivated) from html to css to php, mysql, jquery, and am now building rich web applications. The Question How can I prove to a company that even though I have no education, I have a passion to learn whatever is thrown my way? ...That essentially I would come at every issue with not only knowledge, but with a passionate desire to solve it, whether that means tackling a new language or debugging code for hours at a time? p.s. Sorry for the stupid title.

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  • Is it possible to avoid C++ compiler error (C2757) where 2 different header files contain same symbol for namespace & class?

    - by dharmendra
    Hi, I am facing a problem when implementing some new code to an existing library. This library already references a class with a name say 'foo'. The same name is used as a namespace in the other header file which has to be included to implement the new functionality. Since both the header files are a part of legacy code libraries I cannot amend them. So here I am looking for any way so as to avoid the Compiler Error (C2757: a symbol with this name already exists and therefore this name cannot be used as a namespace name). I am not sure whether it is possible or not. Hence, Any help shall be appreciated. Thanks For clarity here is the sample code illustration for the issue: HeaderA.h class foo {} HeaderB.h namespace foo { class ABC{} } HeaderC.h #include <HeaderA.h> #include <HeaderB.h> using namespace foo; class Toimplement{ ABC a; //Throws Error C2757 }

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  • iPhone , core data, whether NSManagedObject use lazy load mechanism when it was create ?

    - by Robin
    Hi, all, I have use core data in app, I have definite a class that most like as follows: @interface Master : NSManagedObject { } @property (nonatomic, retain) NSSet* Details; .... the entity Master contains a property 'Details' that is relate to another table, this is typical Master-Details relationship, I trace the app , but I find a issue that the property 'Details' value was construct even it never be invoked ..... but I consider that the core data 'should' use some lazy mechanism to improve performance, or maybe I miss some configure step ? because the Master entity contains at least five 'Child' table properties , I have to consider this problem before use the core data .... any help ? thanks for your time!

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  • Do Managers in Python Multiprocessing module lock the shared data?

    - by AnonProcess
    This Question has been asked before: http://stackoverflow.com/questions/2936626/how-to-share-a-dictionary-between-multiple-processes-in-python-without-locking However I have several doubts regarding the program given in the answer: The issue is that the following step isn't atomic d['blah'] += 1 Even with locking the answer provided in that question would lead to random results. Since Process 1 read value of d['blah'] saves it on the stack increments it and again writes it. In Between a Process 2 can read the d['blah'] as well. Locking means that while d['blah'] is being written or read no other process can access it. Can someone clarify my doubts?

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  • is it possible to include a binary in my project and use it?

    - by Adam S
    I have a binary that's used as a command-line tool to manipulate some files - tool.exe. I would like to include this in my Visual Studio 2008 project and use it from my C# code. I have it in a folder called "Resources" which also has some other files my project uses. I would like to do something like Process myproc = Process.Start("Resources/tool.exe"); but I believe C# has an issue with this because it's looking in the file system rather than the project. How can this be done?

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  • jQuery code works in Firebug, but not on its own

    - by Ben
    I'm having quite the brainbuster of an issue right now. I am trying to change a link's hash tag at the end from "respond" to "comments" with jQuery. I have a simple script that should do this, however it does not work. The link does not change. However, Firebug shows no errors and when I run the code in Firebug's console, it works just as I intend. Why doesn't this work on its own? Does anybody have a solution, I'm at my wits edge with this one. (function ($) { $(document).ready(function() { $("a[href$='respond']").each(function() { $(this).attr("href", $(this).attr('href').replace("respond", "comments")); }); }); })(jQuery.noConflict()); Thanks so much, I know this might be a pain to test but I'm really thankful.

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  • running code when two events have triggered

    - by Evert
    This is mostly a language-agnostic question. If I'm waiting for two events to complete (say, two IO events or http requests), what is the best pattern to deal with this. One thing I can think of is the following (pseudo js example). request1.onComplete = function() { req1Completed = true; eventsCompleted(); } request2.onComplete = function() { req2Completed = true; eventsCompleted(); } eventsCompleted = function() { if (!req1Completed || !req2Completed) return; // do stuff } Is this the most effective pattern, or are there more elegant ways to solve this issue?

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  • Maven best practice for generating artifacts for multiple environments [prod, test, dev] with CI/Hud

    - by jaguard
    I have a project that need to be deployed into multiple environments (prod, test, dev). The main differences mainly consist in configuration properties/files. My idea was to use profiles and overlays to copy/configure the specialized output. But I'm stuck into if I have to generate multiple artifacts with specialized classifiers (ex: "my-app-1.0-prod.zip/jar", "my-app-1.0-dev.zip/jar") or should I create multiple projects, one project for every environment ?! Should I use maven-assembly-plugin to generate multiple artifacts for every environment ? Anyway, I'll need to generate all them at once so it seams that the profiles does not fit ... still puzzled :( Any hints/examples/links will be more than welcomed. As a side issue, I'm also wondering how to achieve this in a CI Hudson/Bamboo to generate and deploy these generated artifacts for all the environments, to their proper servers (ex: using SCP Hudson plugin) ?

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  • How to Prevent an Applet from Unloading across web pages?

    - by Francis Shanahan
    I have a large applet that takes some 40 seconds to initialize (cabs are cached so ignore download time for this question). The issue is, if the user goes to Page A which launches the applet (single window) and then navigates to page B, the applet is unloaded. If the user goes back to Page A, they incur the 40 seconds init time once again. I'd like to be able to launch the applet, incurring the 40 seconds init time once and only once. The applet needs to reside inside a single browser window (the same window as my web application). In other words, I cannot launch the applet in a popup. Does anyone have any creative ideas around how to prevent the applet unloading?

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  • Problem with dependencies in m2eclipse

    - by MH
    Hi, I have a problem with m2eclipse and Nexus. Normally, when you create a new Maven Project in Eclipse, you can select an Archetype like maven-archetype-quickstart from the Nexus Indexer. Unfortunately, the Nexus Indexer doesn't show anything at all. But the worst part about all this is, that the "Add Dependency" menue doesn't work. (For a better understanding: By clicking on the "Dependencies" tab, you can usually click on a button in order to enter a groupId or artifactId. That's the menue what I am talking about. If I enter for example "junit", it shows no search results.) Does anybody know this issue? How could I fix it? Thanks a million in advance for any help.

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  • SSH X11 Tunneling

    - by Corleone
    Hey all, I'm running Ubuntu 9.10 and trying to run a Java program I wrote whose source code is located on a remote machine. I'm using ssh to connect using the following command from the terminal: ssh -X username@hostname When running the program, one of the GUI frames has its buttons missing from view, but they are clickable and work as expected when I can guess accurately where they are. Running the code from my local machine they are present, and running from another windows machine using X-Windows they are present. Been trying to solve this problem for a few hours now but to no avail. Anyone have any helpful insight how to resolve this issue? Thanks!

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  • SSRS 2008 error

    - by syamantak
    I am trying to generate a report using SSRS 2008. During report processing i am facing an error which states.."An error has occured during report processing .Query execution failed for dataset (datasetno).A severe error occured opn the current command.The results if any,should be discarded.Operation cancelled by user ". The datasetname for which query execution is failing is changing randomly.When I am executing those dataset queries seperately it was not throwing any errors.Sometimes I am getting my report without any failure. I am really fix in this issue.Don't have any clue how to solve this error. plz anyone help me. Thanks in advance.

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  • Why is simulink data type conversion block altering the data when it should be typecasting?

    - by Nick
    I am attempting to typecast some data from int32 to single. I first tried using the 'Data Type Conversion' block with single output data type and the Stored Integer option. However, I found that the datatype conversion block is not typecasting the data the way I expect it to. Am I using the block incorrectly, or is it failing to work as it should? temp1 (pre conversion): uint32: 1405695244 single: 1728356810752.000000 binary: 01010011110010010011010100001100 temp2 (post conversion): uint32: 1319604842 single: 1405695232.000000 binary: 01001110101001111001001001101010 By the way, I have gotten around the issue by using an embedded Matlab block to perform the typecasting operation.

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  • Can I use string concatenation to define a class CONST in PHP?

    - by selfsimilar
    I know that you can create global constants in terms of each other using string concatenation: define('FOO', 'foo'); define('BAR', FOO.'bar'); echo BAR; will print 'foobar'. However, I'm getting an error trying to do the same using class constants. class foobar { const foo = 'foo'; const foo2 = self::foo; const bar = self::foo.'bar'; } foo2 is defined without issue, but declaring const bar will error out Parse error: syntax error, unexpected '.', expecting ',' or ';' I've also tried using functions like sprintf() but it doesn't like the left paren any more than the string concatenator '.'. So is there any way to create class constants in terms of each other in anything more than a trivial set case like foo2?

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  • Managing memory of polymorphic timed events with DLL

    - by Milo
    Here is my issue. My Gui library that I made supports timed events. Basically, I have a class called TimedEvent which users inherit from. They then do: addTimedEvent(new DerivedTimedEvent(...)); However given the nature of timed events, I manage the memory afterwards. So when the timed event has done its thing, my library calls delete on it. Although it runs fine, that is because the exe and the library were both built with msvc 2008. I think I might have trouble if I have 2 versions of the runtime, one for the lib, and one for the exe. What can I do to fix this? I can't create a factory because the derived type is on the exe side of things. I also cannot ask the user to call delete since they might not have a way to keep track of time, or know if the event was delayed for whatever reason. Thanks

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  • how to hightlight a div if the page.isvalid=false.

    - by Nimesh
    I wanna high light particular div when the page.isvalid=false. on the pageload i am able to get display the error message. But the issue is that i am not able to highlight the control which is required. I have a js function which sets the error class to the div. Its working fine when i click on a button. On the page load i wanna set this as well. can i do this using some jquery??? or something other way.. Please let me know how to do this.... share your ideas.... Thanks

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  • Google CDN not gzipping jquery

    - by thermal7
    If I navigate here: http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.min.js I download 70k using Firefox 3.6.3 and I can confirm it is sending Accept-Encoding: gzip. If I use the Microsoft one: http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.min.js I download 30k (and it comes through as Content-Encoding: gzip) I am also experiencing this when using jquery 1.4.2 in regular sites eg jquery.com. Funily enough, stack overflow which references jquery 1.3.2 on the google cdn, is coming through gzipped. Why is this happening? Is it some kind of issue with google or am I missing something? I live in Melbourne, Australia.

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