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• What exactly are signals and slots in Qt?

  - by Jen

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

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• About the forward and backward a word behaviour in Emacs

  - by janoChen

  I don't know if there's something wrong with my settings but when I press M-f (forward a word) it doesn't matter where I am, it never place the cursor in the next word (just between words). This doesn't happen with M-b which place my cursor in the beginning of the previous word. Is this a normal behavior? How do I place my cursor at the beginning of the following word?

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• complex type in entity framework

  - by kathy

  Hi,,, When I need to use the complex type in entity framework?? or in other words what is the complex type used for ? Thanks

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• How can I replace/speed up a text search query which uses LIKE ?

  - by Jules

  I'm trying to speed up my query... select PadID from Pads WHERE (keywords like '%$search%' or ProgramName like '%$search%' or English45 like '%$search%') AND RemovemeDate = '2001-01-01 00:00:00' ORDER BY VersionAddDate DESC I've done some work already, I have a keywords table so I can add ... PadID IN (SELECT PadID FROM Keywords WHERE word = '$search') ... However its going to be a nightmare to split up the words from English45 and ProgramName into a word table. Any ideas ? EDIT : (also provided actual table names)

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• Facebook Flash app security?

  - by mhdouglas

  I'm developing a Facebook app implemented in Flash, and I'd like to authenticate communication between my app and my server. In other words, I'd like to guarantee that all communication with my server is coming from my app, which has been launched from within facebook by a valid facebook user. Does the Facebook actionscript API support this type of operation? Or am I on my own?

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• Recognizing language of a short text? - Python

  - by RadiantHex

  Hi folks, I'm have a list of articles, each article has its own title and description. Unfortunately, from the sources I am using, there is no way to know what language they are written. Also, text is not entirely written in 1 language; almost always English words are present. I reckon I would need dictionary databases stored on my machine, but it feels a bit unpractical. What would you suggest I do?

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• Multiline code in Word 2007

  - by WaelJ

  I am using word 2007 and am inserting code into the document. I have a style with a fixed-width font and light grey background and all, and I use Notepad++ for syntax highlighting. My problem is with a "line" of code that is too long to display, so is there a way to auto-insert an arrow symbol at the beginning of a such lines to indicate that it is the same line (kind of like hyphenating, except on long lines instead of long words) So for e.g. something like this: public static void foo(String abcdefg, Boolean 123, ?String xyz)

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• How to show tabular data in a Java web app

  - by arahant7

  Is there any counterpart to ASP.NET's DataGrid (or DataView) in the various J2EE web application technologies (specifically Struts)? In other words, what is the de facto method for showing tabular data in a J2EE web application?

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• Formatting floats in Python without superfluos zeros

  - by TarGz

  How to format a float so it does not containt the remaing zeros? In other words, I want the resulting string to be as short as possible..? Like: 3 -> "3" 3. -> "3" 3.1 -> "3.1" 3.14 -> "3.14" 3.140 -> "3.14"

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• Flex: Why doesn't mx.core.Container always use the 'contentPane'?

  - by David Wolever

  Why is it that the mx.core.Container uses its contentPane sometimes, but doesn't at other times? Or, in other words, how come the children of Container are only put into the contentPane if some complex logic decides that they should be put there? Why not simply always put all children in the contentPane?

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• What programming language is the most English-like?

  - by asmeurer

  I'm mainly a Python programmer, and it is often described as being "executable pseudo-code". I have used a little bit of AppleScript, which seems to be the most English-like programming language I have ever seen, because almost operators can be words, and it lets you use "the" anywhere (for example, this stupid example I just came up with: firstnumber = 1 secondnumber = 2 if the firstnumber is equal to the secondnumber then set the sum to 5 end if is a valid AppleScript program. Are there any programming languages that are even more English-like than these?

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• preg_replace Pattern

  - by codeworxx

  Hey Guys, i'm not very firm with preg_replace - in other Words i do not really understand - so i hope you can help me. I have a string in a Text like this one: [demo category=1] and want to replace with the Content of Category (id=1) e.g. "This is the Content of my first Category" This is my startpoint Pattern - that's all i have: '/[demo\s*.*?]/i'; Hope you can help? Thanks, Sascha

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• Data Quality Check - SQL Server

  - by user319384

  I am trying to find a good mechanism where I can check whether the data being entered by a group of people is grammatically correct, has correct spellings, etc, etc. I also would like to compute words per minute and accuracy. Is there any process to do this so that I do not have to re-invent the wheel? Thanks in advance.

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• Making Browser Auto-Scroll to Most Recently Submitted Comment.

  - by John

  Hello, I made a comment on a Wordpress blog and I noticed that after I submitted the comment, the top of the browser was flush with the top of my comment. In other words, the web page was auto-scrolled down to the top of my comment. How can I do this? I am using a comment system with PHP / MySQL. Thanks in advance, John

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• scroll/search JList when user starts typing

  - by alex

  I would like to implement one of the fanciest features I every now and then. I would like to allow a user to click on a JList and if words are typed, do a query and advance the caret to the next match (prefix). Is there and example of such an implementation in Java somewhere? I'm thinking a combination of key listeners, getNextMatch() and setSelectValue().

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• Compile/use unrar C++ source for iphone app?

  - by greypoint

  Writing an app that will include the ability to decompress zip and rar files. I think I'm OK on how to handle the .zips but .rars seem a little more trouble. I noticed that rarlabs has source available but it's C++. Is there a way to compile, wrap or otherwise use this code within an iPhone app? Reference: http://www.rarlab.com/rar_add.htm Open to alternate suggestions on how to handle .rar files as well. I'm still pretty much a newbie so please explain in small words :)

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• Alternative to dotNetInstaller for chaining MSI's?

  - by Rob Ferno

  Is there a better alternative to dotNetInstaller for chaining MSI's, MSU's and EXE files? In other words a bootstrapper. dotNetInstaller is terrible in quiet mode with no options/documentation on what parameters to pass when a component install fails etc (e.g Continue Yes/No)

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• How do you sort a C# dictionary by value?

  - by kurious

  I often have a Dictionary of keys & values and need to sort it by value. For example, I have a hash of words and their frequencies, and want to order them by frequency. There's SortedList which is good for a single value (frequency), but I want to map it back to the word. SortedDictionary orders by key, not value. Some resort to a custom class, but what's the cleanest way?

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• Selecting a column that is also a keyword in MySQL

  - by randall123

  For some reason, the developers at a new company I'm working for decided to name their columns "ignore" and "exists". Now when I run MySQL queries with those words in the where clause, I get a syntax error; however, I can't seem to figure out how to reference those columns without running into an error. I tried setting them as strings, but that doesn't make any sense. Help? Also, is there a term for this kind of mismatch?

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• best option to create simple website mockup with navigation

  - by Buzzer

  I'm trying to put together a static html website with full navigation. In other words, I want the user to click some links and images and actually be taken to another page. I'm a developer so I know how to do this in frameworks like ASP.Net MVC and grails. However, for this particular case, I just want to quickly mock up the UI and provide simple navigation so I can do some user testing. Can anyone advice on how to do this? Thanks,

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• Is there a way to disable landscape for iPhone/iPad in iUI

  - by Toddeman

  I have a web site written using iUI so it is formatted well for iDevices. Is there a way to disable rotation of the page when the device is rotated? In other words, if somebody rotates the device, I would still want the page to stay in portrait mode.

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• how to test or describe endless possibilities?

  - by koen

  Example class in pseudocode: class SumCalculator method calculate(int1, int2) returns int What is a good way to test this? In other words how should I describe the behavior I need? test1: canDetermineSumOfTwoIntegers or test2: returnsSumOfTwoIntegers or test3: knowsFivePlusThreeIsEight Test1 and Test2 seem vague and it would need to test a specific calculation, so it doesn't really describe what is being tested. Yet test3 is very limited. What is a good way to test such classes?

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• HOW-TO Make computer sing

  - by Ofir

  Hi, I'm trying to develop an online application where the user writes some text and the software sings it back to the user. I can currently generate the audio file with the words spoken by the computer using espeak, but I have no idea how to make it sound like a song, how to add rhythm to it. I'm able to change the pitch and tempo using rubberband, but that's as far as I've gotten. Does anyone have a clue how to make this happen?

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• Java and C++ on Stack Unwinding issue

  - by sahs-i-muhterem

  As far as I know, in case of an uncaught exception, C++ destroys the local variables immediately, Java releases the references and leaves the rest for the garbage collector. Is this right? What exactly is the difference between Java and C++ on this issue? in other words, which of these two languages is considered better in terms of stack unwinding issue? :)

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• Dottrace Dead vs. Garbage

  - by Moshe

  After reading the dottrace documentation I realized that: Dead objects are objects deleted before the end point of the snapshot. Garbage objects are objects allocated after the starting point and deleted before the end point - in other words, "Garbage objects" is a subset of "Dead objects". But after doing some profiling sessions, I could see that sometimes the number of "Garbage objects" is by far greater than the number of "Dead objects" of the same class (for example System.String). How should I interpret this phenomenon?

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