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• Shell Extension: DragQueryFile returns at most 16 (in Windows 7)

  - by Erik

  I've writtten a shell extension (guided by The Complete Idiot's Guide to Writing Shell Extensions) which worked as it should until I upgraded to Windows 7(32bit). Now, the function DragQueryFile UINT uNumFiles = DragQueryFile(hDrop,0xFFFFFFFF,NULL,0); returns the right number of selected files until the number is above 16. Then always 16 is returned. I've tested it in XP(32) and Vista(32), there it works, in Windows7 (32/64) it doesn't. Any ideas? Thanks.

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• Asynchronous Request make for-Loop waiting for didFinishLoading

  - by rdesign

  Hey guys, I have a asynchronous url request within a for loop. This loop is called 20 times, each time one parameter of the webaddress is changed. Everytime the didFinishLoading method is called I want to hand over the data of this specific webadress. The problem now is that when I run the for loop, the didFinishLoading method is not called, only at the end. Any suggenstions on how to make the loop wait for complete loading the data for the specific URL? Thanks a lot.

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• Theory of computation - Using the pumping lemma for CFLs

  - by Tony

  I'm reviewing my notes for my course on theory of computation and I'm having trouble understanding how to complete a certain proof. Here is the question: A = {0^n 1^m 0^n | n>=1, m>=1} Prove that A is not regular. It's pretty obvious that the pumping lemma has to be used for this. So, we have |vy| = 1 |vxy| <= p (p being the pumping length, = 1) uv^ixy^iz exists in A for all i = 0 Trying to think of the correct string to choose seems a bit iffy for this. I was thinking 0^p 1^q 0^p, but I don't know if I can obscurely make a q, and since there is no bound on u, this could make things unruly.. So, how would one go about this?

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• How to redefine symbol names in objects with RVCT?

  - by Batuu

  I currently develop a small OS for an embedded platform based on a ARM Cortex-M3 microcontroller. The OS provides an API for customer application development. The OS kernel and the API is compiled into a static lib by the ARMCC compiler and customer can link his application against it. The lib and the containing object files offer the complete list of symbols used in kernel. To "protect" the kernel and its inner states from extern hooking into obvious variables and functions, I would like to do some easy obfuscation by renaming the symbols randomly. The GNU binutils seems to do this by calling objcopy with the --redefine-sym flag. The GNU binutils cannot read the ARMCC / RVCT objects. Is there any solution to do this kind of obfuscation with RVCT?

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• Another Java vs. Scala perspective - is this typical?

  - by Alex R

  I have been reading about Scala for a while and even wrote some small programs to better understand some of the more exoteric features. Today I decided to do my first "real project", translating some 60 lines of ugly Java code to Scala to rewrite it using the better pattern-matching features (why? because the Java version was becoming hard to maintain due to excessive combination of regex and conditionals). About halfway through the editing process, Eclipse thew up this error: I get the general impression that the Scala IDE in Eclipse is a lot buggier and less complete than its Java equivalent. Is this correct or do I just have a bad installation? Is there a better IDE for Scala?

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• Iphone sdk - please help , 1 view takes me 45 minutes to do :(

  - by Dave

  Hey, I've been working on a Cook Book App but each view ( or recipie page) takes about 45 minutes to complete so as you can imagine its taking forever. The problem is that I have to manually: Set up a gradient image for the back ground (Somtimes I have to add a few image backgrounds to fit the view as I often use a scroll view, not sure how this could be automated?) Put an image behind the titles "Recipe name" , "Time needed" and an image to go behind the recipie instructions ( again I might need a few of these depending on how long the description is. Creating view controllers for main sections such as "Breakfast" and "Lunch" and then I need to manually create view controllers to go in these sections. Theres got to be a way to set up a template for this? Thanks for reading all of this.

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• In Django, I want to insert a database record by sending myself an email?

  - by littlejim84

  Hello. I'm looking into a possible feature for my little to-do application... I like the idea that I can send an email to a particular email address, containing a to-do task I need to complete, and this will be read by my web application and be put in the database... So, when I come to log into my application, the to-do task I emailed will be there as a entry in the app. Is this possible? I have a slice with SliceHost (basically a dedicated server) so I have total control on what to install etc. I'm using Python/Django/MySQL for this. Any ideas on what steps to take to make this happen?

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• asp.net application install folder

  - by Maximilian Csuk

  Disclaimer: this is not a question about how to install asp.net or an application using it! Hi! I am pretty sure many of you have once installed some kind of forum, blog or CMS (mostly PHP powered applications). All of these contain a folder mostly named "install" where (after you copied the files to the webserver) point your browser to to complete the installation by entering for example database information (servername, username, password, ...). After that, most applications suggest that you delete this folder or at least change the permissions so nobody from the outside can access it anymore. Now to my question: how would you go about that in the asp.net world? I don't really like the "install folder"-approach and I thought there might be a different mechanism for .net/IIS. The person installing my application should be able to enter his database information as painless as possible, which should ultimatively be stored in the web.config file. If it makes a difference, I am using asp.net MVC. Thanks for your help!

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• Reporting services genius only: a fast way to get Reporting Services local site working?

  - by Junior Mayhé

  Hello I was here trying to figure out why my Reports manager is empty, there's no tabs at all. I installed SQL Server 2008 complete, but didn't not configure Reporting Services. When installing SQL Server 2008, this Windows 7 version didn't have yet IIS installed, I installed it later. I don't see where is this localhost/Reports physically on my Hard Drive, where is the physic folder? I don't see on IIS where is Report folder, would it exist? The site settings people talk about, I can't find it. The "Reporting Services" service is running on automatic at SQL Server Configuration Manager. How can I get Reporting Services this working without struggling? (I can't see why is necessary to customize all these user permissions)

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• Spring MVC 3.0: Avoiding explicit JAXBElement<> wrapper in method arg

  - by Keith Myers

  I have the following method and want to avoid having to explicitly show the JAXBElement< syntax. Is there some sort of annotation that would allow the method to appear to accept raw MessageResponse objects but in actuality work the same as shown below? I'm not sure how clear that was so I'll say this: I'm looking for some syntactic sugar :) @ServiceActivator public void handleMessageResponse(JAXBElement<MessageResponse> jaxbResponse) { MessageResponse response = jaxbResponse.getValue(); MessageStatus status = messageStatusDao.getByStoreIdAndMessageId(response.getStoreId(), response.getMessageId()); status.setStatusTimestamp(response.getDate()); status.setStatus("Complete"); }

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• How do I wait until a console application is idle?

  - by Anthony Mastrean

  I have a console application that starts up, hosts a bunch of services (long-running startup), and then waits for clients to call into it. I have integration tests that start this console application and make "client" calls. How do I wait for the console application to complete its startup before making the client calls? I want to avoid doing Thread.Sleep(int) because that's dependent on the startup time (which may change) and I waste time if the startup is faster. Process.WaitForInputIdle works only on applications with a UI (and I confirmed that it does throw an exception in this case). I'm open to awkward solutions like, have the console application write a temp file when it's ready.

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• Django : mysql : 1045, "Access denied for user

  - by PlanetUnknown

  I have the whole setup working for months on my local computer. I'm installing on a remote site now. Created a fresh mysql DB, and created a new user ("someuser") and gave it complete grants, like so - GRANT ALL PRIVILEGES ON . TO 'someuser'@'localhost' IDENTIFIED BY 'somepassword' WITH GRANT OPTION; I have sync'd the db, using "python manage.py syncdb" and the correct tables were created. My settings.py has this same user. But when I try to login a user through the application, and it hits the DB, I see the following in the logs - (1045, "Access denied for user 'someuser'@'localhost' (using password: YES)") I logged in through mysql (installed on the same box as django) and checked the grants and it correctly shows - Grants for djangouser@localhost GRANT ALL PRIVILEGES ON * . * TO 'someuser'@'localhost' IDENTIFIED BY PASSWORD '*thesaltedpasswordOverHere' WITH GRANT OPTION I don't want to use the root user/password for django, since it doesn't seem the correct way. Any pointers as to what might be wrong ?

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• implement button click in html

  - by vbNewbie

  I have been trying to execute a button event in html page that displays additional content on the web page. I am getting a null reference error when using the getelementbyid and not sure how to change this. Here is the html reference I need to engage: <div class="button" style="float:none;width:180px;margin:20px auto 30px;"><a href="#" id="more" style="width:178px">Show more ?</a></div> </div> and here is my code: Dim wb As New WebBrowser wb.Navigate(fromUrl) While wb.ReadyState <> WebBrowserReadyState.Complete Application.DoEvents() End While Debug.Write(wb.DocumentText) Dim htmlElements As HtmlElementCollection = wb.Document.GetElementsByTagName("<a") If Not wb.Document Is Nothing Then Try If wb.DocumentText.Contains("more") Then If wb.Document.GetElementById("more").GetAttribute("href") Then wb.Document.GetElementById("more").InvokeMember("#") End If End If Catch ex As Exception MessageBox.Show(ex.Message.ToString) End Try End If I appreciate any ideas.

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• How to make a table, which is wider than screen size, scrollable?

  - by understack

  I've a table with 2 columns and each column is 800px wide. I want to show this table in 800x50 window. So there should be horizontal and vertical scrollbar to view complete table. While I've found few related solutions (this and this) on SO, they only work if table width is smaller than screen size. In my case screen size is 1200px and total table width is 1600px. How could I do this? i want to achieve something like this.

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• what happens to, the controls or the iframe or the div, which is

  - by user287745

  hidden:- does it get transferred to the user side? disabled:- does it get transferred to the user side? what i want is, a aspx page will be having many iframes to display different different pages, there will be many div tags to display css formatted information to understand the what i mean by many:- i have to transfer a complete website with 30 aspx pages into one single page! have simply combined every thing resulting in one extremely huge page my concern is the on local host it works loads fast, but when on online server accessed by numerous people for education purposes, the site ( ONE PAGE ) WILL SLOW DOWN terribly to overcome this i thought of using hidden and disable options. can any one help and possible suggest an improved way of achieving the above yes it sounds silly but this is the requirement thank you

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• Customizing the behavior of ControlDesigners for Controls derived from native .NET controls.

  - by Eric

  My question is related to this question: http://stackoverflow.com/questions/93541/baseline-snaplines-in-custom-winforms-controls However, in my case, I have created a new control that derives from TextBox rather than containing a TextBox. I would like to have a custom ControlDesigner, but I would like to modify the behavior of the TextBox's designer rather than having to write a complete designer myself. In particular, I'd like to be able to return the TextBox's SnapLines while providing some custom verbs. Is there a good way to do this? EDIT: To clarify, this is for Windows Forms in .NET 2.0.

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• Shall i learn Assembly Language or C, to Understand how "real programming" works?

  - by Daniel Upton

  Hello, World.. I'm a web developer mostly working in Ruby and C#.. I wanna learn a low level language so i dont look like an ass infront of my (computer science expert) boss. Ive heard a lot of purist buzz about how assembly language is the only way to learn how computers actually work, but on the other hand C would probably be more useful as a language rather than just for theory. So my question is.. Would Learning C teach me enough computer science theory / low level programming to not look like a common dandy (complete tool)? Thanks! Daniel

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• MySQL indexes: how do they work?

  - by bob-the-destroyer

  I'm a complete newbie with MySQL indexes. I have several MyISAM tables on MySQL 5.0x having utf8 charsets and collations with 100k+ records each. The primary keys are generally integer. Many columns on each table may have duplicate values. I need to quickly count, sum, average, or otherwise perform custom calculations on any number of fields in each table or joined on any number of others. I found this page giving an overview of MySQL index usage: http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html, but I'm still not sure I'm using indexes right. Just when I think I've made the perfect index out of a collection of fields I want to calculate against, I get the "index must be under 1000 bytes" error. Can anyone explain how to most efficiently create and use indexes to speed up queries? Caveat: upgrading Mysql is not possible in this case. Using Navicat Light for db administration, but this app isn't required.

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• How events are assigned in .NET

  - by Matt

  I just realized I didn't fully understand why in .NET you assign events using a += symbol. I figured this out yesterday when I needed to remove an event and without thinking I was doing someobject.onsomeevent += null thinking that would just remove the event I had previously assigned. After some investigation, I figured out I had to someobject.onsomeevent -= someeventmethod; After figuring this out, I realized I don't understand how event methods are assigned in .NET. So I have a few questions: First, does it mean that I can do someobject.onsomeevent += someeventmethod; someobject.onsomeevent += someeventothermethod; If so, when onsomeevent occurs will they both get hit, and in the order specified or simultaneously? Furthermore, how can I determine what event methods are already assigned to someobject.onsomeevent? Second, is there a way to save the events methods in some class, remove them from someobject.onsomeevent and re-assign them after some other procedures that would normally trigger the event are complete?

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• is it even possible to modify .apk, by adding additional class to .dex and re-packing with modified

  - by user355859

  is it even possible to modify .apk, by adding additional class to .dex and re-packing with modified manifest.xml?? I know there are tools such as baksmali / smali to disassemble / re-assemble given classes.dex from .apk, but not sure limitation what could be modified from there on? I'm trying to add additional activity, to modify starting launcher activity (may be from androidmanifest.xml) from original apk, then re-pack and sign to make complete single .apk... all need to be done out of build time, no raw source or build structure visible, only .apk as input... ANY IDEA?

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• Where can I find a list of reserved words for Oracle fulltext search?

  - by Tyronomo

  I've a client testing the full text (example below) search on a new Oracle UCM site. The random text string they chose to test was 'test only'. Which failed; from my testing it seems 'only' is a reserved word, as it is never returned from a full text search (it is returned from metadata searches). I've spent the morning searching oracle.com and found this which seems pretty comprehensive, yet does not have 'only'. So my question is thus, is 'only' a reserved word. Where can I find a complete list of reserved words for Oracle full text search (10g)? Full text search string example; (<ftx>test only</ftx>)

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• XML and ServerXMLHTTP problem

  - by ZAfrican

  Error Type: msxml3.dll (0x80072F0C) A certificate is required to complete client authentication I am sending an XML file to a remote server putUrl =https://www.myweb.com/test/drhandler.php xml_put = "<?xml version=""1.0""?><subscription id=""" & "14" &"""><status>" &"das" & "</status></subscription>" Public Function SendBatch(xml_put,putUrl) Set xmlhttp = CreateObject("MSXML3.ServerXMLHTTP") xmlhttp.Open "PUT", putUrl , False xmlhttp.setRequestHeader "Content-Type", "application/x-www-form-urlencoded" xmlhttp.send(xml_put) Set xmlhttp = Nothing end function Any help out there?

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• In the java DBCP connection pool - what is an idle connection?

  - by Ravenor

  A colleague at work insists that a DBCP idle connection is a connection that has lain unused for 30 minutes. I believe a dbcp idle connection is a connection that is in the pool available to be borrowed, and an active connection is one that is borrowed. Looking through the code I found no reference to 30 minutes or other magic values and a cursory glance through the code for assuring minidle does not show any such logic. If he is correct can you please back that up with a code or documentation reference. For the complete answer I would like it answered for both DBCP 1.1 and 1.6.

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• Steps in subclassing UINavigationController

  - by RickiG

  Hello I would like to subclass the UINavigationController to get some more freedom in regards to the appearance of the controller. I have some graphics for the different parts, bars, buttons, text etc. Looking at the UINavigationController header file I get little help, I don't know where to start out. I have never subclassed/overridden a UIKit component before, it seems it is a bit like playing Sherlock Holmes. What is the approach? How do I know what to override to get a a specific piece of graphics "injected" the correct place? Do I need to subclass UINavigationBar, UIBarButtonItem etc. etc to get the complete customized look? How do I know if something is off limits in regards to being approved by Apple? Hope someone can point me in the right direction, I have only been able to find examples of changing small parts of the controller, not a full customization by subclassing. Am I going about this the wrong way? Thanks:)

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• Dependency Injection with @Inject in Weld (JSR-299 RI). How is the corresponding @Produces found?

  - by Thorbjørn Ravn Andersen

  I have played with the JSR-299 Reference Implementation "Weld" with the purpose of using it in a stand-alone application, and I have had a look at the documentation, and marveled at the magic. My question is how the producer of a given object to be @Inject'ed is found? Either the java compiler produces hints for annotations which is easily found by the classloader, or the complete classpath must be traversed loading all classes to see what they do which sounds highly inefficient to me, or it is a completely different approach. What is the trick?

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