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• Cocoa NSOutlineView bug - [NSCFTimer copyWithZone:]: unrecognized selector sent to instance

  - by Circle

  I'm using an NSOutlineView with the function - (BOOL)outlineView:(NSOutlineView *)outlineView isGroupItem:(id)item defined so it gives the group row GUI look. When I add a root item, it works fine. When I add an item to root's child array and expand it, it works fine. If I contract the item though, the following error is logged: [NSCFTimer copyWithZone:]: unrecognized selector sent to instance I also get an EXC_BAD_ACCESS error if the app window is deactivated by switching to another app. I used the debugger to try to find where I might have made an error in one of my functions, but the stack trace only shows functions I did not create (RunCurrentEventLoopInMode, CFRunLoopRunSpecific, handleWindowNeedsDisplay, etc.) Does anyone have any idea where my error(s) might be?

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• Multilingual support using gettext with codeigniter, best practice?

  - by tobefound

  I know how to create .po files and how to generate .mo files and then use them for translation on my Codeigniter powered site. However, I'm not quite sure on how to change language from the site GUI. I want to stick to codeigniter's default url calling schema: www.domain.com/controllername/method/param1/param2. Calling the server like this is a no-brainer: www.domain.com/controllername?lang=en Doing that for every controller using the default url schema, requires me to implement the same method in every controller, just to pass the lang parameter to the setlocale() function and then bind to my .po domain name. Feels awkward... ANy ideas how you guys work with gettext in codeigniter? And yes, I do want to work with gettext.

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• How can I put all twill commands together into one piece of code in a .py file?

  - by brilliant

  Hello everybody! I have just started exploring TWILL. Twill is an amazing scripting language for Web browsing and it does all I want!!! So far I've been using twill from a Python shell (IDLE (Python GUI) to be precise) and I do things in the way of executing commands one by one (I mean, I type one command, run it, then type the next command): But I don't know how to put all these commands together in one .py file, so that they would all be executed one by one automatically. It seems that there is such possibility in twill. This example from the twill documentation page (you can see it HERE) shows us one piece of code consisting of several commands: So, my question is: How can I put all commands together in twill?

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• How to get all rows but specifc columns from a DataTable?

  - by Oliver

  Currently i am having some problems with getting some data out of a DataTable by selecting all rows, but only some columns. To be a little more descriptive here is a little example: Sample Data | ID | FirstName | LastName | Age | +----+-----------+----------+-----+ | 1 | Alice | Wannabe | 22 | | 2 | Bob | Consumer | 27 | | 3 | Carol | Detector | 25 | What i have So what we got from our GUI is a IEnumerable<DataColumn> selectedColumns and there we'll find two elements (FirstName and LastName). Now i need some result which contains all rows, but only the above two columns (or any other list of selected columns). So far i already used LINQ on several one dimensional objects, but this two dimensional object gives me a little headache. // The hard-coded way Table.AsEnumerable().Select(row => new { FirstName = row[1], LastName = row[2] }); // The flexible way Table.AsEnumerable().Select(row => row ???) But how can i now say, which columns from row should be selected by using my selectedColumns?

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• Has anybody use javafx on CDC J9?

  - by 4NDR01D3

  Is that possible?? I mean, I have an already working project that runs in windows mobile using the J9 virtual machine for CDC. My user interface there is using AWT and it works fine and it looks OK, but been honest it doesn't take real advantage of the devices were is running... So I start reading about JavaFX and that looks really cool, but all that I see about mobiles there is applied to CLDC, MIDP, etc. but my application is already running on CDC J9 and I can't change this cause I'm using a Derby database on it. So, my plan is to code the GUI again, but keeping the logic of the application. So do you guys think javafx is the way to go? or, am I wasting my time learning javafx for this project. Thanks in advance, Gustavo.

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• Able to ping but cannot browse after several hours running of my python program

  - by Shane

  It's a GUI program I wrote in python checking website/server status running on my XP SP3, multi threads are used to check different site/server. After several hours running, the program starts to get urlopen error timed out all the time, and this always happens right after a POST request from a server(not a certain one, might be A or B or C), and it's also not the first POST request causing the problem, normally after several hours running and it happens to make a POST request at an unknown moment, all you get from then on is urlopen error timed out. I'm still able to ping but cannot browse any site, once the program closed everything's fine. It's definitely the program causing this problem, well I just don't know how to debug/check what the problem is, also don't know if it's from OS side or my program wasting too many resources/connections(are you still able to ping when too many connections used?), would anybody please help me out?

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• Release another user's lock obtained with sp_getapplock on SQL Server

  - by joshperry

  We have a system that uses sp_getapplock to create an exclusive mutex any time someone opens an order in the GUI. This is used to prevent multiple people from making changes to an order simultaneously. Sometimes people will open an order and go home, leaving it open. This effectively blocks anyone from being able to make changes to the order. I then get emails, calls and end up doing a kill <spid> in enterprise manager. Obviously I've gotten sick of this and want to make a quick self-service webform. The main problem I've run into is that kill requires sysadmin privileges, which I do not want to give to the user that the our website runs as. I have tried sp_releaseapplock but this doesn't let you release another user's lock (even when calling it as a sysadmin). So, finally my question; does anyone know of an alternative method to release a lock that was obtained by another user using sp_getapplock?

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• When making a branch in TortoiseSVN, what do "head", "working copy", and "specific" revisions mean?

  - by Asad Butt

  A new user of Tortoise SVN, working over source control. I have a Visual Studio solution which consists of 5 webAppliation projects. I need to take one out and work over it in a branch. When I try to branch it, It is asking me of one of these options head revision in repository specific revision in repository working copy revision Problem 1: What exactly are these ? I am confused with "head revision" and "working copy", as they appear same to me. EDIT: Problem 2: Why cant we branch from Repository GUI itself, (would be head revision) ? Problem 3: Can you list the steps, needed to branch from a directory !

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• Programmer's editor or IDE for C code

  - by Yktula

  I feel like this question has been repeated here, but I couldn't find it. What open-source programmer's editor or IDE is best for writing code in C? A GUI and integration with Clang for static code analysis or git for version control would be convenient, but aren't necessary. I would ideally use two editors: one feature-filled IDE and one with a small memory footprint, but editors like jEdit, Geany, Diakonos, nano, etc. don't satisfy many of my needs, which include: Good support for refactoring and code completion. Extensibility in C or a "modern" scripting language (i.e. Ruby or Python) Relatively good performance and lack of bloated-ness

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• Higher than high-level web frameworks or CMS's?

  - by Ben

  I'm looking for options that allow very high-level web site development with these special characteristics: not requiring the user to program in a complex programming language not requiring the user to use GUI-like administration areas allow the user to "program" in a lightweight markup language The last point is not only about look and structure of the output but also about creating simple dynamic output. For example: listing pages fetching the content of other pages doing a site search and displaying its output dynamically show or hide parts of the page depending on login status Of course, I am not expecting a solution that provides the same possibilities like a Ruby, Python or PHP web framework. Rather I am looking for support of the "basics" that are common for web sites. Until now, I have found only one piece of software that fulfills these requirements but while it's free, it's not open source: BoltWire at http://www.boltwire.com/. Being open source is required.

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• Name of the concept of designing an interface to allow expert users to become more efficient?

  - by Grundlefleck

  I'm searching for sources and further information on a particular concept in user experience design. It's not a particularly complicated concept, just that when designing user interfaces, you should both make it intuitive and simple for new users, but also provide way for users to become more efficient as they become more familiar with the application. An example could be including a prominent button for a common action for new users, but also providing a keyboard shortcut / mnemonic for expert users. However, that's just an example, another example could be providing full functionality through a GUI, but allow expert users to script the same actions. The point is it's more difficult to learn, but it makes them more efficient. I'm pretty sure there's a name for that which I can't recall, and I'm having trouble searching for sources and references on it. Name of the concept of designing an interface to allow expert users to become more efficient?

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• [C#] SQLite - Creating and changing databases on the fly

  - by Oskar Kjellin

  Today I use SQLite and send a database-file with the project. However I want the database to be created when the user first starts the software. Is there a way to copy the code needed to create a database based on the existing database? The problem is that when a user downloads a new version he might be tricked into copying over his last database and lose the data. I'd like a nice way to check the version of the database and modify it if I need new columns or tables etc. Or, if it does not exist at all, create a new database? I know I can probably make create the code to make the database from the beginning but I want it to be based on the existing database I have created by a gui.

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• Write data to an xml file.

  - by Bobby

  My aim is to write an XML file with few tags whose values are the regional language. I'm using Python to do this and using IDLE(Pythong GUI) for programming. While I try to write the words in an xmls file it gives the following error. UnicodeEncodeError: 'ascii' codec can't encode characters in position 0-4: ordinal not in range(128) For now, I'm not using any xml writer library instead I'm opening a file "test.xml" and writing the data into it. This error is encountered by the line: f.write("\t\" + data + "\"). If I replace the above write statement with print statement then it prints the data properly on Python Shell. I'm reading the data from an excel file which is not in the UTF8,16, or 32 encoding formats. Its in some other format. cp1252 is reading the data properly. Any help in getting this data writtent oan xml would be highly appreciated. Thanks in advance. Bob

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• C# Sequence Diagramm Reverse Engineering Tool?

  - by Wayne

  It's essential for me to find a tool that will reverse engineer sequence diagrams by integrating with the debugger. I suppose using the profiler could work also but less desirable. It's a key requirement that the tool in question will record all threads of execution since the app, TickZoom, is heavily parallelized. We just evaluated a most awesome tool from Sparx called Enterprise Architect which integrates with the debugger. It allows you to set a break point, start recording method traces from that break point. It's a lovely design and GUI. Hope it works for you but it only records a single thread of execution so that makes it unusable for us. I will put in a feature request to Sparx. But hope to find a similar tool that does this now since that's the only features we need--not all the other stuff that Sparx also does rather well. Sincerely, Wayne

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• WPF: Soft deletes and binding?

  - by aks

  I have custom objects which implement INotifyProperyChanged and now I'm wondering if it is possible to implement soft delete which would play nicely with binding? Each object would have a IsDeleted property and if this property would be set to true than it would not be displayed in GUI. I was thinking about making a custom markup extension which would decorate Binding class but it hadn't worked out as expected. Now I'm considering using MultiBinding with IsDeleted as one of bound properties so that converter would be able to figure out which object is deleted. But this solution sounds quite complicated and boring. Does anybody have an idea how to implement soft deletes for binding?

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• Unit Testing in QTestLib - running single test / tests in class / all tests

  - by Dave

  I'm just starting to use QTestLib. I have gone through the manual and tutorial. Although I understand how to create tests, I'm just not getting how to make those tests convenient to run. My unit test background is NUnit and MSTest. In those environments, it was trivial (using a GUI, at least) to alternate between running a single test, or all tests in a single test class, or all tests in the entire project, just by clicking the right button. All I'm seeing in QTestLib is either you use the QTEST_MAIN macro to run the tests in a single class, then compile and test each file separately; or use QTest::qExec() in main() to define which objects to test, and then manually change that and recompile when you want to add/remove test classes. I'm sure I'm missing something. I'd like to be able to easily: Run a single test method Run the tests in an entire class Run all tests Any of those would call the appropriate setup / teardown functions.

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• Personal project in Java

  - by Chuck

  My first project in java is going to be a program (eventually I have to create a GUI interface but for now CLI would do) to keep track of my books (something similar to what libraries have only a simpler). I need to be able to insert, update, remove, show all books, update, search(by name or author or date). For the design I was thinking one main class Library which will have all of the above as methods that connect to the db and retrieve the data. Is this approach ok? I realize it's simple but it's my first real project and I would appreciate a little feedback. Also, is it too soon to consider reading up on design patterns and database design ?

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• is there a small portable linux with good development environment?

  - by Sriram

  let me put it this way..! i use windows/ my company wants me to use windows i like Linux i don't want to use cygwin i want a simple portable Linux with a development environment aka( make,gcc,g++,llvm,...) with a bash and vi is enough for me no need any gui. these 4 points never change. ;) i tried damn small Linux.. its awesome but it doesn't have what i need. so is there a portable Linux distribution that i can run from windows using qemu or something with a good up2date development environment? thanks in advance

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• Is it worthwhile learning about Emacs? [closed]

  - by dole doug

  Hi there Some time ago, I've heard what a great tool Emacs can be. I've read some papers about it and some watched some video too. I've read that emacs is great not only for developers but for usual users too...so i decided to start learning how to use it and wok with it. The problem is that I'm a MS Windows user and I learn in my spare time PHP and C(I also did some products on those languages, but i still considering myself in learning stage). Another problem is that I learn alone (no friends around to ask/learn from them, programming related stuff). Can you give me some tips about how to use those type of tools(especially those written for gnu/unix) with "poor" GUI but rich features? Do you recommend to use the specific windows written applications only and forget about those which come from GNU?

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• Upload file with POST method on Qt4

  - by mosg

  Hello! I'm looking for a basic code samples of how to upload files to server with HTTP POST method on Qt. My task: I have simple Qt program and I need to select any image file from the local host and upload it to the server. The selection part and GUI is simple and I have already done it, but with POST uploading I'm confused. In addition I have to say, that there is no authorization to upload file. If someone already looking this topic? PS: the reason why I'm asking and not coding my self is time, I need to get this method quick. Thank you, all success solutions from my side will be posted here for others.

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• Regarding Multiple Tab-Class

  - by Christine

  Hi! I've problem regarding GUI with one Menu and one Order Class. I've created a variable to store how many items have been selected in the Menu Class. private int totalSelected; The var totalSelected is live updated. It can be changed anytime depending on actionPerformed() function.(Exp: totalSelected will add up all the selected items) In the Order Class, how can I access to the live update variable totalSelected in order to retrieve the live update value? When I invoke getTotalSelected() function inside the Menu Class, I will only obtain a 0 value. Thanks for your help ^^!

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• How can I provide a different rendering target to Direct2D?

  - by fingerprint211b

  I'm using Direct2D in C# to render a small gui framework for my research project. I'm not very used to working on Windows or with DirectX. I'm using a Windows Forms control to create a render target, and msdn warns that since it uses BindDC, a the larger the rendering target, the worse the performance will be (which turned out to be a dramatic difference, when I maximize the window, I get around 15 fps). What would be a better way to create a render target for Direct2D? Is there a way to create a window and render directly to it, instead of rendering to a control's buffer first, and then rendering that? If so, how? Sorry if my English sucks, not my native language.

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• Java Meta Search Engine API

  - by Loki

  I'm currently researching Java libraries to help in building a meta type search engine in the sense of being able to replace any given search engine in the back-end of the application or to simultaneously search using multiple search engines. I'm not interested in the GUI part here, just the generalization of search engine APIs and usage. I'd like to know about the common libraries used to achieve this task and if there are any common patterns used in this case. I imagined that this problem is common enough to be able to find plenty of stuff on Google, but it seems like search is a very proprietary domain and not much information is fed back to the community.

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• Subdomains for different applications on Windows Server 2008 R2 with Apache and IIS 7 installed

  - by Yusuf

  Hi, I have a home server, on which I have installed Apache, and several other applications that have a Web GUI (JDownloader, Free Download Manager). In order to access each of these apps (whether be it from the local network or the Internet), I have to enter a different port, e.g., http:// server:8085 or http:// xxxx.dyndns.org:8085 for Apache, http:// server:90 or http:// xxxx.dyndns.org:90 for FDM, http:// server:8081 or http:// xxxx.dyndns.org:8081 for JDownloader. I would like to be able to access them using sub-domains, e.g, http:// apache.server or http:// apache.xxxx.dyndns.org for Apache, http:// fdm.server or http:// fdm.xxxx.dyndns.org for FDM, http:// jdownloader.server or http:// jdownloader.xxxx.dyndns.org for JDownloader. First of all, would it be possible like I want it, i.e., both from LAN and Internet, and if yes, how? And then, even if it's possible only for Internet, I would like to know how to do it, if there's a way. Thanks in advance, Yusuf

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• VIM: created syntax not showing up?

  - by joxnas

  HI people I recently changed to VIM for coding in C. I'd like to hightlight the operators +-<=& ... etc I searched in google how should i do it, and i found the answer in this website: I was suppose to do something like: syntax match Operadores /[][><()&!|+*={}-]/ hi Operadores guifg=#000000 gui=BOLD Those characters were supposed to appear as black, bold characters. However, that doesn't happen when I open my .C files. However, if I create a newfile, (where there the C syntax doesn't show up), I am able to see the black, bolded operators. How can i correct this situation, and why is this happening (it seams like if my syntax is beeing overwrided by the C syntax). I'm using gvim, and this is my vimrc: colorscheme nicotine set smartindent set number set guifont=Inconsolata\ Medium\ 11 set numberwidth=5 noremap j jzz noremap k kzz Thanks, any help is appreciated. (And dont forget I'm a novice in VIM, and ..sorry for my English)

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