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• How to set up Flex Unit 4

  - by macke

  Does anyone know of any guides or any sort of documentation on how to set up the new Flex Builder 4 beta? I've been pulling my hair all day long, none of my tests are executed and I can't for the life of me understand what's wrong. There are no errors at all. It's as if the metadata tags are not recognized, is there some special compiler argument to recognize them? I seem to remember that this is not necessary as long as the swc files that are included were compiled with said arguments. I'm using Beta 1 of Flex Unit 4 which can be found here: http://opensource.adobe.com/wiki/display/flexunit/FlexUnit+4+feature+overview I'm actually using the very same code that is included with that package to run the tests, but no tests are executed. Neither mine nor the ones included in the FU4 package. The lack of documentation certainly doesn't help much...

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• .NET Framework 4 in WPF not showing bitmap effect

  - by Adrian

  I am having a problem using VS2010 and framework version 4 with bitmap effects. If I have the code below and run it in a WPF application using the .NET Framework 4 Client Profile, the bitmap effect does not appear. If I set the framework version to .NET Framework 3.5 Client Profile (and change no code), it runs as expected. At first, I thought it was a problem in my application, but I removed the code and put it in a separate standalone application and it behaves the same. Anyone else verify that the same problem happens? What is happening here? The version 4 framework in VS2010 just seems to ignore the bitmap effect. <Window.Resources> <Style x:Key="SectionHeaderTextBlockStyle" TargetType="{x:Type TextBlock}"> <Setter Property="FontFamily" Value="Segoe UI"/> <Setter Property="FontSize" Value="18"/> <Setter Property="FontWeight" Value="Bold"/> <Setter Property="VerticalAlignment" Value="Center"/> <Setter Property="Foreground" Value="LightGreen"/> <Setter Property="BitmapEffect"> <Setter.Value> <OuterGlowBitmapEffect GlowColor="Black" GlowSize="3" /> </Setter.Value> </Setter> </Style> </Window.Resources> <Grid VerticalAlignment="Center" HorizontalAlignment="Center"> <TextBlock Text="Contact Details" Style="{DynamicResource SectionHeaderTextBlockStyle}"/> </Grid>

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• Why is there no code-folding in emacs ?

  - by Pierre

  There are several questions on SO about how to get code folding in emacs, without having to add any special characters like "markers" in the comments for example. Someone said that there was "no perfect solution." It seems that it could be done by parsing the source of the program being written and look for matching parenthesis or bracket, or to do it based on indentation. You could also use a combination of scripts that use different methods. So why is it commonly accepted that there is no "perfect" and straightforward way to get code-folding in emac? Is there something in emacs or its architecture that makes it hard to program? If it were easy, after so many years of smart people using emacs you would think that someone would have wrote it.

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• Perl TDS character sets

  - by skiphoppy

  I'm using the FreeTDS driver with DBD::Sybase, connecting to an MS SQL Server. When I query certain values of certain records, I get this error: DBD::Sybase::st fetchrow_arrayref failed: OpenClient message: LAYER = (0) ORIGIN = (0) SEVERITY = (9) NUMBER = (99) Server , database Message String: WARNING! Some character(s) could not be converted into client's character set. Unconverted bytes were changed to question marks ('?'). This seems to happen for records that contain special Windows character-set characters, such as curly quotes, copied and pasted from people's Outlook and Word messages. Unfortunately, I do not have any control of this database; sanitizing the input on the way in is obviously the way to go, but is not available to me. What FreeTDS settings do I need to change to be able to successfully query these records?

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• valueOf() vs. toString() in Javascript

  - by brainjam

  In Javascript every object has a valueOf() and toString() method. I would have thought that the toString() method got invoked whenever a string conversion is called for, but apparently it is trumped by valueOf(). For example, the code var x = {toString: function() {return "foo"; }, valueOf: function() {return 42; }}; window.console.log ("x="+x); window.console.log ("x="+x.toString()); will print x=42 x=foo This strikes me as backwards .. if x were a complex number, for example, I would want valueOf() to give me its magnitude (so that zero would become special), but whenever I wanted to convert to a string I would want something like "a+bi". And I wouldn't want to have to call toString() explicitly in contexts that implied a string. Is this just the way it is?

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• Get directory path by fd

  - by tylerl

  I've run into the need to be able refer to a directory by path given its file descriptor in Linux. The path doesn't have to be canonical, it just has to be functional so that I can pass it to other functions. So, taking the same parameters as passed to a function like fstatat(), I need to be able to call a function like getxattr() which doesn't have a f-XYZ-at() variant. So far I've come up with these solutions; though none are particularly elegant. The simplest solution is to avoid the problem by calling openat() and then using a function like fgetxattr(). This works, but not in every situation. So another method is needed to fill the gaps. The next solution involves looking up the information in proc: if (!access("/proc/self/fd",X_OK)) { sprintf(path,"/proc/self/fd/%i/",fd); } This, of course, totally breaks on systems without proc, including some chroot environments. The last option, a more portable but potentially-race-condition-prone solution, looks like this: DIR* save = opendir("."); fchdir(fd); getcwd(path,PATH_MAX); fchdir(dirfd(save)); closedir(save); The obvious problem here is that in a multithreaded app, changing the working directory around could have side effects. However, the fact that it works is compelling: if I can get the path of a directory by calling fchdir() followed by getcwd(), why shouldn't I be able to just get the information directly: fgetcwd() or something. Clearly the kernel is tracking the necessary information. So how do I get to it?

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• Steaming a non-PCM WAV file to a SilverLight application

  - by Satumba

  Hi, I would like to allow users to play recorded WAV files that stored on a server back to a Silverlight application as a client to play them. I saw that there is a way to play a WAV file on Silverlight (here), but when i tried to impliment it, i got an error playing the file because it is not in PCM format but encoded. The files that i'm trying to play are encoded with a special encoder, so i thought that the only way is to decode the WAV file on the server and stream it back to the client. The limitation is that the decode process should occur in real time because it is not reasonable to convert all the WAV files that exists. Is it possible to do it? Which streamer can i use? (Windows Media Service can help here?) Does somebody has any experience with such a scenario? Appreciate your help.

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• How to access web server of any machine of my network from the outside

  - by Luc

  Hello, I have an ip like username.dyndns.org, this is the external IP of my router. On my lan, I have several machine (m1, m2, ...) , each running a dedicated web server. Is it possible to reach each machine from the outside with something like: http://m1.username.dyndns.org http://m2.username.dyndns.org ? Do you know what needs to be configured in my router for NAT ? Also, is there a special directive in Apache to do so ? Thanks a lot, Regards, Luc

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• PHP - Processing Invalid XML

  - by Paul

  I'm using SimpleXML to load in some xml files (which I didn't write/provide and can't really change the format of). Occasionally (eg one or two files out of every 50 or so) they don't escape any special characters (mostly &, but sometimes other random invalid things too). This creates and issue because SimpleXML with php just fails, and I don't really know of any good way to handle parsing invalid XML. My first idea was to preprocess the XML as a string and put ALL fields in as CDATA so it would work, but for some ungodly reason the XML I need to process puts all of its data in the attribute fields. Thus I can't use the CDATA idea. An example of the XML being: <Author v="By Someone & Someone" /> Whats the best way to process this to replace all the invalid characters from the XML before I load it in with SimpleXML?

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• Linking to an Apache License 2.0 library and distributing with proprietary application

  - by atnakjp

  Hi all, I've read through "Apache License, Version 2.0" but my interpretation was in slightly different to an answer given in a related question so was hoping for some clarification. Supposing I created an application that linked to a library that was licensed under the license in question, my interpretation for doing what's required is: I don't need to do anything special to the application itself because it's considered neither "Work" nor "Derivative Works". When distributing the library alongside the application, I need to include a copy of the license. Any installer that contains the library would be considered "Derivative Works" and therefore I would need to show the attribution notices contained in "NOTICE" (if one exists) in one of its screens. If I were to distribute everything in a zip file instead, I would need to put the same attribution notices in a text file that I distribute alongside the file. Does this sound about right? Cheers,

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• Does Process.StartInfo.Arguments support a UTF-8 string?

  - by Patrick Klug

  Can you use a UTF-8 string as the Arguments for a StartInfo? I am trying to pass a UTF-8 (in this case a Japanese string) to an application as a console argument. Something like this (this is just an example! (cmd.exe would be a custom app)) var process = new System.Diagnostics.Process(); process.StartInfo.Arguments = "/K \"echo ????????\""; process.StartInfo.FileName = "cmd.exe"; process.StartInfo.UseShellExecute = true; process.Start(); process.WaitForExit(); Executing this seems to loose the UTF-8 string and all the target application sees is "echo ?????????" When executing this command directly on the command line (by pasting the arguments) the target application receives the string correctly even though the command line itself doesn't seem to display it correctly. Do I need to do anything special to enable UTF-8 support in the arguments or is this just not supported?

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• Replace in place, parsing & string manipulation.

  - by Mark Tomlin

  I'm trying to replace a set of characters within a string. The string may or may not have any data to change. The string is marked up in a way that allows for it to change it's color from a set of characters. The string can reset it's it's formatting to default by using a defined set of characters. This setup is very much like the ECMA-48 standard used on LINUX consoles for colors and other special effects. Where one string could be ^0Black^1Red^2Green^3Yellow^4Blue^5Purple^6Cyan^7White Producing the following HTML: <span style="color: #000">Black</span><span style="color: #F00">Red</span><span style="color: #0F0">Green</span><span style="color: #FF0">Yellow</span><span style="color: #00F">Blue</span><span style="color: #F0F">Purple</span><span style="color: #0FF">Cyan</span><span style="color: #FFF">White</span> Another string (^1Error^8: ^3User Error) could also produce: <span style="color: #F00">Error</span>: <span style="color: #FF0">User Error</span> You might of noticed the ^8 part of that string resets the color for that part of the string. What's the best way to go about parsing these kinds of strings?

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• What is your strategy to avoid dynamic typing errors in Python (NoneType has not attribute x)?

  - by Koen Bok

  Python is one of my favorite languages, but I really have a love/hate relationship with it's dynamicness. Apart from the advantages, it often results in me forgetting to check a type, trying to call an attribute and getting the NoneType (or any other) has no attribute x error. A lot of them are pretty harmless but if not handled correctly they can bring down your entire app/process/etc. Over time I got better predicting where these could pop up and adding explicit type checking, but because I'm only human I miss one occasionally and then some end-user finds it. So I'm interested in your strategy to avoid these. Do you use type-checking decorators? Maybe special object wrappers? Please share...

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• Chrome plugin removal

  - by kambamsu

  Hi, I'm writing an NPAPI plugin. In every webpage that the browser goes to, I inject my plugin with an object tag. Something like: <object id="myplugin" type="plugin-mime-type" > In some pages where i dont want it, after injection i remove it by finding the element using the id and doing a document.removeChild. From my logging i found that in firefox and opera, doing this automatically calls the plugin destroy method NPP_Destroy (NPAPI). But in chrome, it doesnt seem to call it. Is there any special way that i should remove a plugin in chrome that i am missing?? Any help would be appreciated. Thanks

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• managing library dependencies with Boost.Build and C++

  - by user931794

  I want to develop a project which can be built on a bunch of different platforms. The project code will be in C++, what's the the best way to manage libraries? I plan on using bjam as the build system because I'm going to be depending on Boost and their unit testing framework as well. The two dependent libraries are Boost itself and FLTK. The possibilities that come to mind for library management are: include build artifacts (binaries) and headers for all supported platforms in-tree include complete source for all dependent libraries in-tree, and somehow script them as dependencies A combination of 1 and 2, like node.js does with v8 inform the user that they need to build the libraries themselves and then have them on the PATH or in some special directory, like libcurl does with its dependencies What is the best approach here? The project will probably not grow beyond a few thousand lines over the next six months, but I want to make the right choice here so that I don't have to come back and switch everything around later.

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• Cocoa/Objective-C - Child window with text input without main window becoming inactive

  - by Josh

  Hello All, I have a need to spawn a window that will hover just above my main window in a cocoa application. I want this main window to allow the user to enter some text in an input box. All is well until the text input box actually gains focus. The main window becomes "deactivated." This window is borderless and is a slightly custom shape -- its more like a hover card than anything else, I suppose. Basically, I'd like this thing to work almost exactly like Spotlight (Apple + Space) -- you can enter text, but this is such an an ancillary operation that in the context of the greater UX, you don't want the jarring effect of the main window graying out (becoming inactive). You'll notice when you have some application open and in-focus, spotlight will not cause the window of that application to become inactive. This problem arises because text input seems to REQUIRE that the child window become the key window (it will not let you place the cursor in the text input field). When it becomes key, the main window becomes inactive. So far I've tried: Subclassing NSWindow for my main application and overriding isKeyWindow such that it only loses key when the application is no longer the users focus (as opposed to the window). This had the unintended effect of colliding with key status of the child window and having very strange effects on the keyboard input (some keys are not captured, like delete) Creating a view instead of a window. Doesn't work because of this problem -- you cannot draw over a Webkit WebView these days. Anybody Cocoa/OSX wizards have any ideas? I've become a little obsessed with this one. An itch I can't scratch.

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• Link to audio in XHTML/EPUB

  - by wxs

  I'm looking into synchronizing an ebook in epub format (so the content is in XHTML) to an audio file. I'm thinking of putting something along the lines of: <a class="audiolink" href="sound.ogg?t=1093"></a> into the body of the document, and then have a custom epub reader that recognizes those tags and synchronizes the audio accordingly. That does seem like a bit of a hack to me though, especially the use of a special class name. Does anyone have any pointers to how this may be done in a more standards-compliant manner (or somewhere where it has been done before)? Ebooks with audio annotation seem like an idea that may already be out there.

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• ASP.NET MVC on IIS6

  - by Seb Nilsson

  Where can I find some good pointers on best practices for running ASP.NET MVC on IIS6? I haven't seen any realistic options for web-hosts who provide IIS7-hosting yet. Mostly because I don't live in the U.S. So I was wondering on how you best build applications in ASP.NET MVC and make it easily available to deploy on both IIS6 and IIS7. Keep in mind that this is for standard web-hosts, so there is no access to ISAPI-filters or special settings inside IIS6. Are there anything else one should think about when developing ASP.NET MVC-applications to target IIS6? Any functions that doesn't work? UPDATE: One of the bigger issues is the thing with routes. The pattern {controller}/{action} will work on IIS7, but not IIS6 which needs {controller}.mvc/{action}. So how do I make this transparent? Again, no ISAPI and no IIS-settings, please.

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• Unable to load assembly with windows service

  - by Brian

  I have created a windows service in C# VS2008 that uses a reference to an external class library to wrote. I have added the reference to it in VS2008. When I run start the service it throws an exception when trying to access the external DLL: Could not load file or assembly 'vcribAPI, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified. The DLL is in the same directory as the service.exe file. Is there something special that I need to do for windows services like putting the DLL in another directory?

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• Best approach for building a multiplattform graphical interface for a command-line application

  - by Werner

  Hi, I developed a command line application, whose binary runs in Linux, Windows and Mac OSX. It reads some text input files, but I realize that some special users can not handle this. I would then like to build some kind of graphical interface, where the user only finds buttons and scroll bars for selecting the input parameters, a big "run" button, and then it reads the output of the program and makes some figures. I also need that everything gets finally packed in a single file, which uses only static libraries, so the user just needs to copy the file to his/her machine and run it. I would like to know what is the best open source and multi-platform approach to do this. 10 years ago I played a bit with something similar on DEC machines, so I guess that nowadays the situation has probably improved a bit. P.S. For designing the graphical interface, I am looking for a graphical approach, where you add buttons, scroll bars with the mouse P.S. 2: the interface is really simple, just need less than 10 buttons, 5 text fields and 2 scrolla bars Thanks

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• Using Yii framework, what would be a right way to process an attribute before displaying it using CH

  - by Karolis

  Say I have this line of code in the view. <?php echo CHtml::activeTextField($model,'start_time'); ?> start_time is a UNIX timestamp. When just displaying it in a view I can apply functions like date() on it. Where should I apply the formatting when I'm displaying it in a form, by using the above line of code? (This case of timestamps/dates might be special, but I'm also interested in how would one go about if it wasn't a date and I just want to work with "value in database" < "different representations of the value in different views. Thanks =)

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• Upload image with Photoshop scripting

  - by cosmorocket

  Is that possible to upload an image from Photoshop (for example, an open image exported to jpeg) to some web place - REST service, FTP etc by using scripting features of Photoshop? For example - I have an image open in Photoshop and then execute some special script that sends an exported version of it to some place over the web. I saw something like this but it uses an automatically generated batch file that executes ftp command on Windows. I would like to use something more beautiful if it's possible. Or may be there are some info to know how to make a simple plugin for just this task. Thanks.

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• Regressing panel data in SAS.

  - by John

  Hey Guys, thanks to your help I succesfully managed all my databases! I am now looking at a panel data set on which I have to regress. Since I only started my Phd this semester together with the econometrics courses I am still new to many statistic applications and regression methods. I want to do a simple regression as in Y = x1 x2 x3 etc, now I already browsed through some literature and found that for panel data it's common to do a fixed effects regression. Also, my Y variable only has positive values so I was thinking in the direction of a Tobit model? I'm doing some research concerning the coverage of analysts in the financial business. My independent variable is the coverage of analysts on a certain firm, so per observation i have 1 analyst and 1 firm, together with different characteristics(market cap and betas etc) of the firm. All this data is monthly. As coverage cannot become negative (only 0) I was thinking of a Tobit model? Do you guys have any ideas what would be a good regression method? Or have some good sources (e books, written books, through university I have access to almost anything concerning my field of work) of information (cause I do have to learn these things for future research)? Thanks!

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• JQuery Autocomplete plugin not working with JQuery 1.4.1

  - by Russ Clark

  I've been using the JQuery Autocomplete plugin with JQuery version 1.3.2, and it has been working great. I recently updated JQuery in my project to version 1.4.2, and the Autocomplete plugin is now broken. The JQuery code to add items to a textbox on my web page doesn't seem to be getting called at all. Does anyone know if the JQuery Autocomplete plugin is incompatible with JQuery version 1.4.2, and if there is a fix for this problem? Here is some sample code I've built in an ASP.Net web site (which works fine if I change the JQuery file to jquery-1.3.2.js, but nothing happens using jquery-1.4.2.js): <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>Untitled Page</title> <script type="text/javascript" src="js/jquery-1.4.2.js" ></script> <script type="text/javascript" src="js/jquery.autocomplete.js" ></script> <script type="text/javascript"> $(document).ready(function() { var data = "Core Selectors Attributes Traversing Manipulation CSS Events Effects Ajax Utilities".split(" "); $(':input:text:id$=sapleUser').autocomplete(data); }); </script> </head> <body> <form id="form1" runat="server"> API Reference: <input id="sapleUser" autocomplete="off" type="text" runat="server" /> (try "C" or "E") </form> </body> </html>

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• JSON URL from StackExchange API returning jibberish?

  - by shsteimer

  I have a feeling I'm doing something wrong here, but I'm not quite sure I'f I'm missing a step, or am just having an encoding problem or something. Here's my code URL url = new URL("http://api.stackoverflow.com/0.8/questions/2886661"); BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream())); // Question q = new Gson().fromJson(in, Question.class); String line; StringBuffer content = new StringBuffer(); while ((line = in.readLine()) != null) { content.append(line); } when I print content, I get a whole bunch of wingdings and special characters, basically jibberish. I would copy and past it here, but that isn't working. What am I doing wrong?

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