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• Extract inline images from Lotus Notes using Lotus Notes Java API

  - by user1660645

  I'm having issues to extract inline images that are pasted in the email body if the emails are sent from external email(like gmail for example) into the Lotus notes. The emails which are sent from Lotus Notes itself has no issues and I'm able to retrieve the inline images by using the document.generateXML() method and parsing through ['picture' xml element tag] the stream. My real concern is how to extract from the external emails(like gmail). I would really appreciate for your help and time on this. Thanks in advance!...

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• Josh Smith's MVVM Demo App: Add commands to MainWindowViewModel's command list

  - by MAD9

  I have a question concerning Josh Smith's famous demo app on MVVM. I try building a "real" application around it to learn WPF. He creates this CommandsList in the MainWindowViewModel containing 2 Commands (create new and view all customers). This list is readonly (why? any particular reason?). I thougt it would be nice to add and remove some commands, depending on the workspace that is currently selected. Like edit or delete a customer when it has the focus and so on. How would I accomplish this?! Can I just make it a normal list and add commands? Or bind the Commands-View to a commands list of the selected workspace instead of the MainWindow? How? Any other ways? Please share your ideas! Thank you very much!

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• idioms for returning multiple values in shell scripting

  - by Wang

  Are there any idioms for returning multiple values from a bash function within a script? http://tldp.org/LDP/abs/html/assortedtips.html describes how to echo multiple values and process the results (e.g., example 35-17), but that gets tricky if some of the returned values are strings with spaces in. A more structured way to return would be to assign to global variables, like foo () { FOO_RV1="bob" FOO_RV2="bill" } foo echo "foo returned ${FOO_RV1} and ${FOO_RV2}" I realize that if I need re-entrancy in a shell script I'm probably doing it wrong, but I still feel very uncomfortable throwing global variables around just to hold return values. Is there a better way? I would prefer portability, but it's probably not a real limitation if I have to specify #!/bin/bash.

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• Performance implications of Synchronous Sockets vs Asynchronous Sockets

  - by Akash Kava

  We are trying to build an SMTP Server to receive mail notifications from various clients over internet. As each of the communication will be longer and it needs to log everything, doing this Asynchronous way is little challenging as well as by using Socket's Asynchronous methods we are not sure of how flow of control and error handling happens. Previously we wrote lot of server/client apps but we always used Synchronous sockets, reason being they are longer sessions and each session also has lot of local data to manage and parsing messages etc. Does anyone have any experience over real performance differences between these two methods? Async calls use ThreadPool which we have experienced many times to just die for no reason. And we fail to restart threadpool etc. In one way Request-Response protocol of HTTP, Async Sockets makes sense, but SMTP/IMAP etc protocols are longer and they have interleaved messages plus state machine of server. So Async methods are really complicated to program. However if anyone can share the performance of Sockets, it will be helpful.

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• What useful things could a javaScript library provide?

  - by Delan Azabani

  In many of my answers I repeatedly urge users not to use JavaScript libraries like jQuery. I even wrote a blog post about the problems that using a library create. Some of these problems include holding back native standards development, keeping users comfortably using IE, and abstracting the developer from real JavaScript. If a site doesn't require IE as part of its audience, then how are libraries useful? The other popular browsers share extremely similar implementations and work well with things like JavaScript 1.6 arrays and AJAX. This is not a troll question, I'm truly wondering what they're useful for.

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• Stack data storage order

  - by Jamie Dixon

  When talking about a stack in either computing or "real" life we usually assume a "first on, last off" type of functionality. Because the idea of a stack is based around something in the physical world, does it matter how the data in the stack is stored? I notice in a lot of examples that the storage of the stack data is quite often done using an array and the newest item added to the stack is placed at the bottom of the array. (like adding a new plate to an existing stack of plates except putting it underneath the other plates rather than on top). As a paradigm, does it matter in what order the data is stored within the stack as long as the operation of the stack acts as expected?

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• Unit testing a database connection and general questions on database-dependent code and unit testing

  - by dotnetdev

  Hi, If I have a method which establishes a database connection, how could this method be tested? Returning a bool in the event of a successful connection is one way, but is that the best way? From a testability method, is it best to have the connection method as one method and the method to get data back a seperate method? Also, how would I test methods which get back data from a database? I may do an assert against expected data but the actual data can change and still be the right resultset. EDIT: For the last point, to check data, if it's supposed to be a list of cars, then I can check they are real car models. Or if they are a bunch of web servers, I can have a list of existant web servers on the system, return that from the code under test, and get the test result. If the results are different, the data is the issue but the query not? THnaks

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• Silverlight XML editor / syntax highlighting

  - by Gromix

  Hi, I am looking for a Silverlight text editor control that provides XML syntax highlighting. I found a few answers in Winforms or WPF, like here on Stackoverflow, but I didn't manage to convert them to Silverlight. The fact that Silverlight is missing System.Drawing is probably a big problem. The only text editor I found for Silverlight is RichTextEdit on Codeplex, but I don't think it is a suitable base for real-time syntax highlighting. Has anyone heard of such a control, or can provide hints on how to build one? Many thanks, Romain

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• Please explain some of Paul Graham's points on LISP

  - by kunjaan

  I need some help understanding some of the points from Paul Graham's article http://www.paulgraham.com/diff.html A new concept of variables. In Lisp, all variables are effectively pointers. Values are what have types, not variables, and assigning or binding variables means copying pointers, not what they point to. A symbol type. Symbols differ from strings in that you can test equality by comparing a pointer. A notation for code using trees of symbols. The whole language always available. There is no real distinction between read-time, compile-time, and runtime. You can compile or run code while reading, read or run code while compiling, and read or compile code at runtime. What do these points mean How are they different in languages like C or Java? Do any other languages other than LISP family languages have any of these constructs now?

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• How do I prevent flickering on CListCtrl?

  - by Sorin Sbarnea

  I'm using a CListCtrl/CListView report view (LVS_REPORT) in virtual mode (LVS_OWNERDATA) with LVS_EX_DOUBLEBUFFER enabled and I encounter ugly flickering. Double buffer have a real effect but it doesn't stop all flickering (without it very slow). I'm not looking for switching to other controls that would require a high amount of rework (like ObjectListView) How does the flickering behaves: * on column resize - the background is first clean using lightgray and after this is displayed the text (background is white) * on mouse scroll (animated) - for a very short time there is lightgray-bar displayed in the area where new lines are to be displayed. It looks like it does clean the background using the default window background color (lightgray) for the area where it has to redraw. How do I solve the flickering problem?

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• When querying the Win32_NTLogEvent Class from WMI with WQL is the TimeGenerated property based on Lo

  - by jpmcclung

  I am writing a C# windows service that is doing some churning through the eventlog on a few domain controllers. Some of them are Windows Server 2003 and some are Windows Server 2008. Upon the service stopping I am attempting to resume where I left off in the logs. In order to do this instead of SELECT * FROM Win32_NTLogEvent WHERE --criteria for events I am looking for I am doing SELECT * FROM Win32_NTLogEvent WHERE TimeGenerated = --some date AND --criteria for events I am looking for At one point I was convinced that the TimeGenerated field was in the local time of the server but now it seems that the Windows 2008 Servers are using GMT to record that time. Can anyone shed some light on if this is a real different between the way the two operating systems function or is this a configuration problem?

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• Android: bug in launchMode="singleTask"? -> activity stack not preserved

  - by Stefan Klumpp

  My main activity A has as set android:launchMode="singleTask" in the manifest. Now, whenever I start another activity from there, e.g. B and press the HOME BUTTON on the phone to return to the home screen and then again go back to my app, either via pressing the app's button or pressing the HOME BUTTONlong to show my most recent apps it doesn't preserve my activity stack and returns straight to A instead of the expected activity B. Here the two behaviors: Expected: A > B > HOME > B Actual: A > B > HOME > A (bad!) Is there a setting I'm missing or is this a bug? If the latter, is there a workaround for this until the bug is fixed? FYI: This question has already been discussed here. However, it doesn't seem that there is any real solution to this, yet.

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• AnkhSVN client side pre-commit hook

  - by santa

  Basically I want to do the same thing as the fella over there. It seems that everybody was thinking about server-side hooks (with all their evil potential). I want a client side script be run before commit so astyle can format the code the way my boss likes to see it. Since my IDE (VS2010Pro) automatically checks when a file changed on the disk an opts me in for reloading it, there is no real evil with all that. Is there any (clean) way to accomplish that with AnkhSVN? Maybe there's also a way to extend VisualStudio to call my pre-commit-script...

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• SAT Thread and Process output capture in c#

  - by alex

  Hi: This is a strange problem I encountered. I have an window application written in c# to do testing. It has a MDI parent form that is hosting a few children forms. One of the forms launch test cripts by creating processes and capture the scripts output to a text box. Another form open serial port and monitoring the status of the device I am working on(like a shell). If I ran both of them together, the output of the script seems only appear in the text box after the test is done. However, If I don't open the serial port form, the output of the script is captured in real time. Does anyone knows what's causing the problem? I notice the onDataReceived even handler for serial port form has a [SAThread] header to it. Will this cause the serial port thread having higher priority than other processes? Thanks in advance.

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• Determing software estimates and tracking past estimates

  - by Casey

  I know that this probably has as many answers as users here on SO, but software estimation always seemed like an esoteric science. Software developers don't have a magic book to refer to as exist in many other industries. I've been spending the last couple of days working on putting together some estimates for a bit of work that I am proposing for a freelance project that I am working on and am having trouble getting it down. I'm not experienced with any real software estimation practices and am trying to go from the gut based on my experience but also trying to be a little loose (not too loose though) on the estimates to leave me a bit of room to work. I read this blog entry http://blogs.popart.com/2007/07/what-scotty-from-star-trek-can-teach-us-about-managing-expectations/ that was linked to from SO and would like to start tracking my estimates at work as well even though I'm not really required to create estimates there. What tools or techniques would you recommend? Also, how much padding do you usually add in to a time estimate?

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• C# XDocument Attribute Performance Concerns

  - by Dested

  I have a loaded XDocument that I need to grab all the attributes that equal a certain value and is of a certain element efficiently. My current IEnumerable<XElement> vm; if (!cacher2.TryGetValue(name,out vm)) { vm = project.Descendants(XName.Get(name)); cacher2.Add(name, vm); } XElement[] abdl = (vm.Where(a => a.Attribute(attribute).Value == ab)).ToArray(); cacher2 is a Dictionary<string,IEnumerable<XElement>> The ToArray is so I can evaluate the expression now. I dont think this causes any real speed concerns. The problem is the Where itself. I am searching through anywhere from 1 to 10k items. Any help?

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• Fortran arrays and subroutines

  - by ccook

  I'm going through a Fortran code, and one bit has me a little puzzled. There is a subroutine, say SUBROUTINE SSUB(X,...) REAL*8 X(0:N1,1:N2,0:N3-1),... ... RETURN END Which is called in another subroutine by: CALL SSUB(W(0,1,0,1),...) where W is a 'working array'. It appears that a specific value from W is passed to the X, however, X is dimensioned as an array. What's going on?

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• Chaining multiple MapReduce jobs in Hadoop.

  - by Niels Basjes

  In many real-life situations where you apply MapReduce, the final algorithms end up being several MapReduce steps. I.e. Map1 , Reduce1 , Map2 , Reduce2 , etc. So you have the output from the last reduce that is needed as the input for the next map. The intermediate data is something you (in general) do not want to keep once the pipeline has been successfully completed. Also because this intermediate data is in general some data structure (like a 'map' or a 'set') you don't want to put too much effort in writing and reading these key-value pairs. What is the recommended way of doing that in Hadoop? Is there a (simple) example that shows how to handle this intermediate data in the correct way, including the cleanup afterward? Thanks.

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• jQuery getJson returning null

  - by Adam

  I'm trying to use this api that lets you reference an exact text, but the getJson does not seem to be working, it's just returning null. $.getJSON('http://api.biblia.com/v1/bible/content/KJV.json?key=MYAPIKEY=John+3:16-18&style=bibleTextOnly', function(data) { alert(data); }); I just took the key out, i've been testing it with my real api key, and it works fine when i just visit the url. is there anything else i need to do to make it work? This is what you get from the url when you have an api key in the url: {"text":"For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. For God sent not his Son into the world to condemn the world; but that the world through him might be saved. He that believeth on him is not condemned: but he that believeth not is condemned already, because he hath not believed in the name of the only begotten Son of God."}

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• Proper usage of JTidy to purify HTML

  - by Raj

  Hello, I am trying to use JTidy (jtidy-r938.jar) to sanitize an input HTML string, but I seem to have problems getting the default settings right. Often strings such as "hello world" end up as "helloworld" after tidying. I wanted to show what I'm doing here, and any pointers would be really appreciated: Assume that rawHtml is the String containing the input (real world) HTML. This is what I'm doing: InputStream is = new ByteArrayInputStream(rawHtml.getBytes("UTF-8")); Tidy tidy = new Tidy(); tidy.setQuiet(true); tidy.setShowWarnings(false); tidy.setXHTML(true); ByteArrayOutputStream baos = new ByteArrayOutputStream(); tidy.parseDOM(is, baos); String pure = baos.toString(); First off, does anything look fundamentally wrong with the above code? I seem to be getting weird results with this. Thanks in advance!

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• wix: does INSTALLDIR always end in a slash?

  - by Cheeso

  I think the default dir gets a trailing slash. But what if the user selects a different directory? Is there a way for the INSTALLDIR to NOT have a trailing slash? It's not that I want it to not have a trailing slash. I want to know if I can count on it, so that, for example, [INSTALLDIR]Filter.dll ...will always resolve to a real, valid filesystem path. Currently I use [INSTALLDIR]\Filter.dll and I get a double-slash in there. It's valid and resolves, but I'd like to eliminate the double slash. thanks.

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• How do I aggregate results from an Adjacency list using PHP's SPL

  - by Stephen J. Fuhry

  I've tried using nested sets, and they become very difficult to maintain when dealing with multiple trees and lots of other complications.. I'd like to give PHP's SPL library a stab at this (btw, we are PHP 5.3, MySQL 5.1). Given two datasets: The Groups: +-------+--------+---------------------+---------------+ | id | parent | Category Name | child_key | +-------+--------+---------------------+---------------+ | 11133 | 7707 | Really Cool Products| 47054 | | 7709 | 7708 | 24" Monitors | 57910 | | 7713 | 7710 | Hot Tubs | 35585 | | 7716 | 7710 | Hot Dogs | 00395 | | 11133 | 7707 | Really Cool Products| 66647 | | 7715 | 7710 | Suction Cups | 08396 | +-------+--------+---------------------+---------------+ The Items +------------+------------+-----------+----------+---------+ | child_key | totalprice | totalcost | totalqty | onorder | (jan, feb, mar..) +------------+------------+-----------+----------+---------+ | 24171 | 10.50 | 20.10 | 200 | 100 | | 35685 | 10.50 | 20.10 | 200 | 100 | | 76505 | 10.50 | 20.10 | 200 | 100 | | 04365 | 10.50 | 20.10 | 200 | 100 | | 01975 | 10.50 | 20.10 | 200 | 100 | | 12150 | 10.50 | 20.10 | 200 | 100 | | 40060 | 10.50 | 20.10 | 200 | 100 | | 08396 | 10.50 | 20.10 | 200 | 100 | +------------+------------+-----------+----------+---------+ The figures are actually much more complicated than this (I am actually aggregating a variable amount of months or years over the past 15yrs, so there may need to be 20 columns of aggregated results). I have been trying to figure out RecursiveIterator and IteratorAggregate, but I am having a difficult time finding real world examples that are generic enough to really wrap my head around these classes. Can someone give me a head start?

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• Remote access to apache2 server

  - by embedded

  Hi all, I'm trying to test my iPhone application on the device. I have a mac computer which stores my development environment. Right now I can only access PHP files using the http://localhost/PHPFileLocation which does not work when I try to test my app on real device. How do I configure apache2 to be accessible from outside? Is it possible to configure it to a specific IP address? I want to reach some php scripts located on my development machine running apache2 from my iPhone device. Thanks

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• Best approach for GPGPU/CUDA/OpenCL in Java?

  - by Frederik

  General-purpose computing on graphics processing units (GPGPU) is a very attractive concept to harness the power of the GPU for any kind of computing. I'd love to use GPGPU for image processing, particles, and fast geometric operations. Right now, it seems the two contenders in this space are CUDA and OpenCL. I'd like to know: Is OpenCL usable yet from Java on Windows/Mac? What are the libraries ways to interface to OpenCL/CUDA? Is using JNA directly an option? Am I forgetting something? Any real-world experience/examples/war stories are appreciated.

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• Consuming "Event Tracing for Windows" events

  - by Paul Baker

  An answer to this question has led me to look into using "Event Tracing for Windows" for our tracing needs. I have come across NTrace, which seems to be a good way to produce ETW events from C# code (using the XP-compatible "classic provider" model). However, I am unable to find an easy way to consume these events - to see them in real-time and/or log them to a file. The only way I have found is that described in the NTrace documentation: using a tool which is only available as part of the Windows DDK. In the case of a complex problem in the field, we may need to ask the user to produce a file containing a trace. We can't ask users to download the DDK or carry out a number of complex operations in order to do this. Is there a straightforward, user-friendly way to log ETW events to a file? Also, is it possible for someone to consume ETW events on Windows Vista/7 if they are not running as administrator?

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