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• Speech recognition plugin Runtime Error: Unhandled Exception. What could possibly cause it?

  - by manuel

  I'm writing a plugin (dll file) for speech recognition, and I'm creating a WinForm as its interface/dialog. When I run the plugin and click a button to start the initialization, I get an unhandled exception. Below is the complete details of it. See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box. ***** Exception Text ******* System.ArgumentException: Value does not fall within the expected range. at System.Speech.Internal.SapiInterop.SapiProxy.MTAThread.Invoke2(VoidDelegate pfn) at System.Speech.Internal.SapiInterop.SapiRecognizer.SetInput(Object input, Boolean allowFormatChanges) at System.Speech.Recognition.RecognizerBase.SetInputToDefaultAudioDevice() at System.Speech.Recognition.SpeechRecognitionEngine.SetInputToDefaultAudioDevice() at gen_myplugin.Dialog.init() at gen_myplugin.Dialog.btnSpeak_Click(Object sender, EventArgs e) at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnClick(EventArgs e) at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent) at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ButtonBase.WndProc(Message& m) at System.Windows.Forms.Button.WndProc(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) ***** Loaded Assemblies ******* mscorlib Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3603 (GDR.050727-3600) CodeBase: file:///c:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/mscorlib.dll ---------------------------------------- gen_speechquery Assembly Version: 1.0.3755.878 Win32 Version: CodeBase: file:///C:/Program%20Files/Winamp/Plugins/gen_speechquery.dll ---------------------------------------- msvcm90 Assembly Version: 9.0.30729.1 Win32 Version: 9.00.30729.1 CodeBase: file:///C:/WINDOWS/WinSxS/x86_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.30729.1_x-ww_6f74963e/msvcm90.dll ---------------------------------------- System.Windows.Forms Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Windows.Forms/2.0.0.0__b77a5c561934e089/System.Windows.Forms.dll ---------------------------------------- System Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System/2.0.0.0__b77a5c561934e089/System.dll ---------------------------------------- System.Drawing Assembly Version: 2.0.0.0 Win32 Version: 2.0.50727.3053 (netfxsp.050727-3000) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Drawing/2.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll ---------------------------------------- System.Speech Assembly Version: 3.0.0.0 Win32 Version: 3.0.6920.1109 (lh_tools_devdiv_wpf.071009-1109) CodeBase: file:///C:/WINDOWS/assembly/GAC_MSIL/System.Speech/3.0.0.0__31bf3856ad364e35/System.Speech.dll ***** JIT Debugging ******* To enable just-in-time (JIT) debugging, the .config file for this application or computer (machine.config) must have the jitDebugging value set in the system.windows.forms section. The application must also be compiled with debugging enabled. For example: When JIT debugging is enabled, any unhandled exception will be sent to the JIT debugger registered on the computer rather than be handled by this dialog box.

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• Maven struts2 modular archetype failing to generate !

  - by Xinus

  I am trying to generate struts 2 modular archetype using maven but always getting error as archetype not present here is a full output : C:\Users\Administrator>mvn archetype:generate [INFO] Scanning for projects... [INFO] Searching repository for plugin with prefix: 'archetype'. [INFO] ------------------------------------------------------------------------ [INFO] Building Maven Default Project [INFO] task-segment: [archetype:generate] (aggregator-style) [INFO] ------------------------------------------------------------------------ [INFO] Preparing archetype:generate [INFO] No goals needed for project - skipping [INFO] Setting property: classpath.resource.loader.class => 'org.codehaus.plexus .velocity.ContextClassLoaderResourceLoader'. [INFO] Setting property: velocimacro.messages.on => 'false'. [INFO] Setting property: resource.loader => 'classpath'. [INFO] Setting property: resource.manager.logwhenfound => 'false'. [INFO] [archetype:generate {execution: default-cli}] [INFO] Generating project in Interactive mode [INFO] No archetype defined. Using maven-archetype-quickstart (org.apache.maven. archetypes:maven-archetype-quickstart:1.0) Choose archetype: 1: internal -> appfuse-basic-jsf (AppFuse archetype for creating a web applicati on with Hibernate, Spring and JSF) 2: internal -> appfuse-basic-spring (AppFuse archetype for creating a web applic ation with Hibernate, Spring and Spring MVC) 3: internal -> appfuse-basic-struts (AppFuse archetype for creating a web applic ation with Hibernate, Spring and Struts 2) 4: internal -> appfuse-basic-tapestry (AppFuse archetype for creating a web appl ication with Hibernate, Spring and Tapestry 4) 5: internal -> appfuse-core (AppFuse archetype for creating a jar application wi th Hibernate and Spring and XFire) 6: internal -> appfuse-modular-jsf (AppFuse archetype for creating a modular app lication with Hibernate, Spring and JSF) 7: internal -> appfuse-modular-spring (AppFuse archetype for creating a modular application with Hibernate, Spring and Spring MVC) 8: internal -> appfuse-modular-struts (AppFuse archetype for creating a modular application with Hibernate, Spring and Struts 2) 9: internal -> appfuse-modular-tapestry (AppFuse archetype for creating a modula r application with Hibernate, Spring and Tapestry 4) 10: internal -> maven-archetype-j2ee-simple (A simple J2EE Java application) 11: internal -> maven-archetype-marmalade-mojo (A Maven plugin development proje ct using marmalade) 12: internal -> maven-archetype-mojo (A Maven Java plugin development project) 13: internal -> maven-archetype-portlet (A simple portlet application) 14: internal -> maven-archetype-profiles () 15: internal -> maven-archetype-quickstart () 16: internal -> maven-archetype-site-simple (A simple site generation project) 17: internal -> maven-archetype-site (A more complex site project) 18: internal -> maven-archetype-webapp (A simple Java web application) 19: internal -> jini-service-archetype (Archetype for Jini service project creat ion) 20: internal -> softeu-archetype-seam (JSF+Facelets+Seam Archetype) 21: internal -> softeu-archetype-seam-simple (JSF+Facelets+Seam (no persistence) Archetype) 22: internal -> softeu-archetype-jsf (JSF+Facelets Archetype) 23: internal -> jpa-maven-archetype (JPA application) 24: internal -> spring-osgi-bundle-archetype (Spring-OSGi archetype) 25: internal -> confluence-plugin-archetype (Atlassian Confluence plugin archety pe) 26: internal -> jira-plugin-archetype (Atlassian JIRA plugin archetype) 27: internal -> maven-archetype-har (Hibernate Archive) 28: internal -> maven-archetype-sar (JBoss Service Archive) 29: internal -> wicket-archetype-quickstart (A simple Apache Wicket project) 30: internal -> scala-archetype-simple (A simple scala project) 31: internal -> lift-archetype-blank (A blank/empty liftweb project) 32: internal -> lift-archetype-basic (The basic (liftweb) project) 33: internal -> cocoon-22-archetype-block-plain ([http://cocoon.apache.org/2.2/m aven-plugins/]) 34: internal -> cocoon-22-archetype-block ([http://cocoon.apache.org/2.2/maven-p lugins/]) 35: internal -> cocoon-22-archetype-webapp ([http://cocoon.apache.org/2.2/maven- plugins/]) 36: internal -> myfaces-archetype-helloworld (A simple archetype using MyFaces) 37: internal -> myfaces-archetype-helloworld-facelets (A simple archetype using MyFaces and facelets) 38: internal -> myfaces-archetype-trinidad (A simple archetype using Myfaces and Trinidad) 39: internal -> myfaces-archetype-jsfcomponents (A simple archetype for create c ustom JSF components using MyFaces) 40: internal -> gmaven-archetype-basic (Groovy basic archetype) 41: internal -> gmaven-archetype-mojo (Groovy mojo archetype) Choose a number: (1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/2 4/25/26/27/28/29/30/31/32/33/34/35/36/37/38/39/40/41) 15: : 8 [INFO] ------------------------------------------------------------------------ [ERROR] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] The defined artifact is not an archetype [INFO] ------------------------------------------------------------------------ [INFO] For more information, run Maven with the -e switch [INFO] ------------------------------------------------------------------------ [INFO] Total time: 3 seconds [INFO] Finished at: Sat Mar 27 08:22:38 IST 2010 [INFO] Final Memory: 8M/21M [INFO] ------------------------------------------------------------------------ C:\Users\Administrator> What can be the problem ?

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• XCOPY-deploying Microsoft Sync Framework in a no admin rights scenario (i.e. ClickOnce install)

  - by Mike Bouck

  I'm currently designing a smart client app (WPF) which needs to operate in an "occasionally disconnected" mode. For the offline scenario, I'm looking at using: Disconnected Service Agent Application Block (from the Smart Client Software Factory) Microsoft Sync Framework I should mention that I want my smart client app to be XCOPY-deployable, auto-updating, and installable without administrative privledges -- basically a ClickOnce-deployed app. From what I can tell this means the Microsoft Sync Framework is out because it has some COM in it's implementation that needs to get registered on the client which requires admin rights. Is it possible to XCOPY deploy and run MSF from a ClickOnce app? Any other ideas for data synchronization?

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• Jquery show function issue - not animating or showing the hidden paragraph, why

  - by dave

  Here is the html: $( document ).ready( function( ) { $( "#testing" ).click ( function( ) { $( "#testing2" ).show( "slow" ); } ); } ); Link lksjflksjdlkflskdjflksjdflkjslkjdflk lsdkflksjgliowtjlskdfjlskdfjlskgs lksjlk,.x,cmlkvjlkjlwkeoltklfnjsklkj lksjf.m,.jlkjoliwekjtlkjgkjjlkjlkjll llvalkiwujoitjlkgskjdkgjlsd,fjlsllll Here is the css: testing { width: 100px; height: 50px; border: 1px solid; font-size: 22px; display: block; text-align: center; padding: 25px 0px 0px 0px; } testing2 { display: none; width: 270px; height: 300px; background: yellow; border: 1px solid; } For some reason, when i click the link, it does not show the paragraph #testing2, why?

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• WPF Application doesn't work on some machines: Stopped working error

  - by Hun1Ahpu

  My WPF application works fine on a number of machines, but now I get a report about this error on a user machine: Description: Stopped working Problem signature: Problem Event Name: CLR20r3 Problem Signature 01: mysoftware.exe Problem Signature 02: 1.0.0.1 Problem Signature 03: 4bbcd9d9 Problem Signature 04: PresentationFramework Problem Signature 05: 3.0.0.0 Problem Signature 06: 4a174fbc Problem Signature 07: 624f Problem Signature 08: e1 Problem Signature 09: System.Windows.Markup.XamlParse OS Version: 6.1.7600.2.0.0.256.48 Locale ID: 1033 I was trying to catch Exception using Application DispatcherUnhandledException but this didn't help. And warping Window1 constructor in try/catch block too. .NET Framework 3.5 is installed on that machine. How can I figure out the reason of crashing: log this error, debug, ...?

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• How can I tell when a UIWebView has finished drawing to a context?

  - by phopkins

  In my code I'm trying to show a UIWebView as a page is loading, and then, when it's done, capture an image from the web view to cache and display later (so I don't have to reload and render the web page). I have something along the lines of: CGContextRef context = CGBitmapContextCreate(…); [[webView layer] renderInContext:context]; CGImageRef imageRef = CGBitmapContextCreateImage(context); UIImage *image = [UIImage imageWithCGImage:imageRef]; The problem I'm running into is that, due to UIWebView's tiling, sometimes only half of the page is rendered to the context by the time I capture the image. Is there a way to detect or block on UIWebView's background rendering thread so that I can get the image only after all of the rendering has finished?

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• How to stop SWF inside of a jQuery UI tab from reloading

  - by Raul Agrait

  I have a SWF movie inside of a jQuery UI tab, and the problem I'm having is that the SWF gets reloaded everytime I click away from the tab, onto another tab, and then click back. I can inspect the DOM and see that the div containing the SWF is still in the DOM when I click away, so I don't know why this it seems to reload it when I click back to the tab. I added the following CSS rules to try to prevent the display being set to: none, but the Flash movie is still reloading: .ui-tabs .ui-tabs-hide { display: block !important; position: absolute; left: -10000px; }

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• CSS Margins Increase with H1 Length

  - by Ethan Turkeltaub

  Consider the following markup: <!DOCTYPE html> <html> <head> <title>Test Page</title> <link href="screen.css" rel="stylesheet" /> </head> <body> <h1>Test</h1> <h3>Description</h3> </body> </html> And the CSS: h3{ margin-top: -25px; } Now, I want the H3 to have a margin-left of however long H1 is, and it is consistently 20px away. So, if I have a H1 block of 200px long, then H3 would have a margin-left of 220px, and so on and so forth. How would I do this?

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• Using jQuery to load Telerik MVC scripts.

  - by ProfK

  I'm busy building my first MVC app that uses the Telerik MVC components. Their docs specify that the ScriptRegistrar helper be called right at the bottom of a view, e.g. "at the end of the master page.". I assume this renders a script block that must only run when the page has loaded. I normally prefer to achieve this using jQuery, and keep all my script related stuff at the top of my master page, preferably in the <head> tag. Is there anything I can do to achieve this with the Telerik components and do away with the lone and forgotten helper call at the bottom of my master page?

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• * css hack no longer working in ie8?

  - by Haroldo

  Ok so i want to make my border css only applicable to ie8 or earlier (as in not ie9 when it comes out). purpose: so that in ie, the missing dropshadow will be replaced with a border: the * hack doesnt seem to be working? im testing in ie8 locally... input, textarea{ display:block; border:none; *border: 1px solid #000; -moz-box-shadow: 0px 0px 1px 1px #999; -webkit-box-shadow: 0px 0px 1px 1px #999; box-shadow: 0px 0px 1px 1px #999; -moz-border-radius: 2px; -webkit-border-radius: 2px; margin: 1px 0px 10px 0px; font-size:12px; color:#494949; }

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• HttpWebRequest.GetResponse() - what specific status codes cause an exception to be thrown?

  - by H. Morrow

  I've hunted around for some definitive documentation on this but haven't had much luck finding any. Basically - the question is - for which HTTP Status codes coming back from the server will HttpWebRequest.GetResponse() generate a WebException after doing something like say, a POST? Specifically - will it generate a WebException for anything other than status 200 OK? Or will it only generate a WebException for say, 400, 404, and 500 (for the sake of argument). I want to know since, the server I'm communicating with defines anything other than HTTP 200 OK coming back as an error condition - and the key is, can I rely on a WebException being generated for anything other than 200? (I've currently written my code so that it'll actually check the return status code everytime to ensure it's 200 OK and if it's not, take appropriate action - but it's alot of duplication between that, and the catch block for a WebException, and I'm hoping to clean it up...) Any relevant links to documentation would be most appreciated. Thanks!

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• In LINQ-SQL, wrap the DataContext is an using statement - pros cons

  - by hIpPy

  Can someone pitch in their opinion about pros/cons between wrapping the DataContext in an using statement or not in LINQ-SQL in terms of factors as performance, memory usage, ease of coding, right thing to do etc. Update: In one particular application, I experienced that, without wrapping the DataContext in using block, the amount of memory usage kept on increasing as the live objects were not released for GC. As in, in below example, if I hold the reference to List of q object and access entities of q, I create an object graph that is not released for GC. DataContext with using using (DBDataContext db = new DBDataContext()) { var q = from x in db.Tables where x.Id == someId select x; return q.toList(); } DataContext without using and kept alive DBDataContext db = new DBDataContext() var q = from x in db.Tables where x.Id == someId select x; return q.toList(); Thanks.

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• Rails 3, changing a specific value in a row

  - by Elliot

  Hey Guys, This question seems ridiculously easy, but I seem to be stuck. Lets say we have a table "Books" Each Book, has a name, description, and a status. Lets say I want to create link in the show view, that when clicked, solely changes the status (to "read") for example. So far, I've tried adding a block in the controller, that says: def read @book = Book.find(params[:id]) @book.status = "Read" @book.update_attributes(params[:book]) respond_to do |format| format.html { redirect_to :back} format.xml { render :xml => @book } end end Then I've added a link to the view that is like: <%= link_to "Read", read_book_path(@book), :method = :put % This isn't working at all. I have added it to my routes, but it doesn't seem to matter. Any help would be great! Thanks! -Elliot EDIT: Forgot to add I'm getting a NoMethodError: undefined method `read_book_path'

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• Throwing exceptions as well as catching exceptions?

  - by Eric S

  I was wondering how Java takes the following scenario public static void main(String[] args) throws IndexOutOfBoundsException, CoordinateException, MissionException, SQLException, ParserConfigurationException { try { doSomething(); } catch (Exception e) { e.printStackTrace(); } } In the above code, I am declaring the main function to throw many different exceptions, but inside the function, I am catching the generic Exception. I am wondering how java takes this internally? I.e., say doSomething() throws an IndexOutOfBounds exception, will the e.printStackTrace() get called in the last catch (Exception e) {...} block? I know if an exception not declared in the throws area of the function gets thrown, the try/catch will handle it, but what about exceptions mentioned in the declaration?

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• Transactions not working for SubSonic under Oracle?

  - by Fervelas

  The following code sample works perfectly under SQL Server 2005: using (TransactionScope ts = new TransactionScope()) { using (SharedDbConnectionScope scope = new SharedDbConnectionScope()) { MyTable t = new MyTable(); t.Name = "Test"; t.Comments = "Comments 123"; t.Save(); ts.Complete(); } } But under Oracle 10g it throws a "ORA-02089: COMMIT is not allowed in a subordinate session" error. If I only execute the code inside the SharedDbConnectionScope block then everything works OK, but obviously I won't be able to execute operations under a transaction, thus risking data corruption. This is only a small sample of what my real application does. I'm not sure as to what may be causing this behavior; anyone out there care to shed some light on this issue please? Many thanks in advance.

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• Rails 3 Beta 2, Haml, Nested Layouts and LocalJumpError

  - by CJ Bryan

  Alright, I'm trying to create an app with nested templates. I'm using Rails 3 Beta 2 and Haml. I've poked around and I've decided to take the clearest approach and have structured my templates like so: # application.html.haml !!! %body %h1 Outermost Template = yield(:foobar) # inner.html.haml - content_for :foobar do %h2 Inner Template = yield = render :file => 'layouts/application' # foo_controller.rb layout 'inner' With all of this, I get a LocalJumpError with the message no block given. The stack traces are blank and pretty unhelpful. Any ideas? Are these known issues?

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• Removing the contents of a Chan or MVar in a single discrete step

  - by Bill

  I'm writing a discrete simulation where request values from multiple threads accumulate in a centralized queue. Every n milliseconds, a manager wakes up to process requests. When the manager wakes up, it should retrieve all of the contents of the central queue in a single discrete step. While processing these, any client threads attempting to submit to the queue should block. When processing completes, the queue reopens and the manager goes back to sleep. What's the best way to do this? The retry behavior of STM isn't really what I want. If I use a Chan or MVar, there's no way to prevent clients from enqueuing additional requests during processing. One approach is to use an MVar as a mutex on a Chan holding the queue. Are there other ways to do this?

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• MYSQL Fast Insert dependent on flag from a seperate table

  - by Stuart P

  Hi all. For work I'm dealing with a large database (160 million + rows a year, 10 years of data) and have a quandary; A large percentage of the data we upload is null data and I'd like to stop it from being uploaded. The data in question is spatial in nature, so I have one table like so: idLocations (Auto-increment int, PK) X (float) Y (foat) Alwaysignore (Bool) Which is used as a reference in a second table like so: idLocations (Int, PK, "FK") idDates (Int, PK, "FK") DATA1 (float) DATA2 (float) ... DATA7 (float) So, Ideally I'd like to find a method where I can do something like: INSERT INTO tblData(idLocations, idDates, DATA1, ..., DATA7) VALUES (...), ..., (...) WHERE VALUES(idLocations) NOT LIKE (SELECT FROM tblLocation WHERE alwaysignore=TRUE ON DUPLICATE KEY UPDATE DATA1=VALUES(DATA1) So, for my large batch of input data (250 values in a block), ignore the inserts where the idLocations matches an idLocations values flagged with alwaysignore. Anyone have any suggestions? Cheers. -Stuart Other details: Running MySQL on a semi-dedicated machine, MyISAM engine for the tables.

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• log4net versus TraceSource

  - by Paul Stovell

  In this thread many people have indicated that they use log4net. I am a fan of TraceSources and would like to know why log4net is used. Here is why I like trace sources: Pluggable listeners - XML, TextFile, Console, EventLog, roll your own Customisable trace switches (error, warning, info, verbose, start, end, custom) Customisable configuration The Logging Application Block is just a big set of TraceListeners Correlation of activities/scopes (e.g., associate all logs within an ASP.NET request with a given customer The Service Trace Viewer allows you to visualize events against these activities individually All of it is configurable in app.config/web.config. Since the .NET framework internally uses TraceSources, it also gives me a consistent way of configuring tracing - with log4net, I have to configure log4net as well as TraceSources. What does log4net give me that TraceSources don't (or that couldn't be done by writing a couple of custom TraceListeners)?

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• perl TemplateToolkit - Can't locate object method "new" via package

  - by simnom

  Hi, I have inherited a web project that is perl based and I'm attempting to set up a local testing server so changes can be made internally to the project. The server architecture Ubuntu 9.10 php 5.2.10 mysql 5.1.37 perl 5.10.0-24ubuntu4 All the dependent modules and packages are installed such as DateTime.pm, TemplateToolkit.pm but running the application throws the following error message: Can't locate object method "new" via package "Template" (perhaps you forgot to load "Template"?) at ../lib//KPS/TemplateToolkit.pm line 51 The code block that this refers to is: sub new { return Template->new( INCLUDE_PATH => $KPS::Config::templatepath, ABSOLUTE => 1, DEBUG => 1, ); } If anybody is able to shed any light on this or point me in the right direction it would be greatly appreciated. Thanks Simnom

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• Darkening UIView while flipping over using UIViewAnimationTransitionFlipFromRight

  - by Alexander Repty

  I'm using a standard animation block to flip over from one view to another, like this: [UIView beginAnimations:@"FlipAnimation" context:self]; [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:NO]; [UIView setAnimationBeginsFromCurrentState:NO]; [containerView exchangeSubviewAtIndex:1 withSubviewAtIndex:0]; [UIView commitAnimations]; During the animation's course, the "from" view darkens as it begins to flip over. Since I'm using nearly identical views on both sides which don't cover the whole view (it's meant to represent a physical card being flipped over), this looks absolutely horrible. Using [UIColor clearColor] as the backgroundColor property for every associated UIView didn't help one bit as transparent areas seem to get darkened as well. Any ideas on how I could get rid of this darkening effect?

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• How to determine whether a dependency object implements a given dependency property (C# / WPF)

  - by Tim Coulter

  I am working with the classes in the System.Windows.Documents namespace, trying to write some generic code that will conditionally set the value of certain dependency properties, depending on whether these properties exist on a given class. For example, the following method assigns an arbitrary value to the Padding property of the passed FrameworkContentElement: void SetElementPadding(FrameworkContentElement element) { element.SetValue(Block.PaddingProperty, new Thickness(155d)); } However, not all concrete implementations of FrameworkContentElement have a Padding property (Paragraph does but Span does not) so I would expect the property assignment to succeed for types that implement this property and to be silently ignored for types that do not. But it seems that the above property assignment succeeds for instances of all derivatives of FrameworkContentElement, regardless of whether they implement the Padding property. I make this assumption because I have always been able to read back the assigned value. I assume there is some flaw in the way I am assigning property values. What should I do to ensure that a given dependency property assignment is ignored by classes that do not implement that property? Many thanks for your advice. Tim

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• Allowing connections initiated from outside

  - by Mark S. Rasmussen

  I've got an old Juniper SSG5 running ScreenOS 5.4.0r6.0. Once a day, more or less, it'll start randomly dropping packets at a rate of ~5-10%. We currently solve this issue by simply rebooting the unit, after which it resumes working in perfect condition. As this error has started appearing randomly, without any configuration or hardware changes, I'm assuming I've got an aging unit about to fail. As such, I've got a replacement SSG5 running ScreenOS 6.0. I've dumped the config on the 5.4 and imported it into a clean 6.0, and it seems to gladly accept it, and all my configuration seems to be A-OK. However, upon connecting the new unit, all outside-initiated connections seem to be blocked. If I browse our external IP from the inside, everything works perfectly, and it's not just port 80, SSH, Crashplan - all of our policies route correctly. All normal networking, initiated from the inside, work perfectly as well. If on the other hand I browse our external IP from the outside, everything is blocked. Barring differences between ScreenOS 5.4 and 6.0, the config is identical. Is there a setting somewhere that defines whether outside/inside initiated connections are allowed? unset key protection enable set clock timezone 1 set vrouter trust-vr sharable set vrouter "untrust-vr" exit set vrouter "trust-vr" unset auto-route-export exit set service "MyVOIP_UDP4569" protocol udp src-port 0-65535 dst-port 4569-4569 set service "MyVOIP_TCP22" protocol tcp src-port 0-65535 dst-port 22-22 set service "MyRDP" protocol tcp src-port 0-65535 dst-port 3389-3389 set service "MyRsync" protocol tcp src-port 0-65535 dst-port 873-873 set service "NZ_FTP" protocol tcp src-port 0-65535 dst-port 40000-41000 set service "NZ_FTP" + tcp src-port 0-65535 dst-port 21-21 set service "PPTP-VPN" protocol 47 src-port 2048-2048 dst-port 2048-2048 set service "PPTP-VPN" + tcp src-port 1024-65535 dst-port 1723-1723 set service "NZ_FMS_1935" protocol tcp src-port 0-65535 dst-port 1935-1935 set service "NZ_FMS_1935" + udp src-port 0-65535 dst-port 1935-1935 set service "NZ_FMS_8080" protocol tcp src-port 0-65535 dst-port 8080-8080 set service "CrashPlan Server" protocol tcp src-port 0-65535 dst-port 4280-4280 set service "CrashPlan Console" protocol tcp src-port 0-65535 dst-port 4282-4282 unset alg sip enable set alg appleichat enable unset alg appleichat re-assembly enable set alg sctp enable set auth-server "Local" id 0 set auth-server "Local" server-name "Local" set auth default auth server "Local" set auth radius accounting port 1646 set admin name "netscreen" set admin password "XXX" set admin auth web timeout 10 set admin auth dial-in timeout 3 set admin auth server "Local" set admin format dos set vip multi-port set zone "Trust" vrouter "trust-vr" set zone "Untrust" vrouter "trust-vr" set zone "DMZ" vrouter "trust-vr" set zone "VLAN" vrouter "trust-vr" set zone "Untrust-Tun" vrouter "trust-vr" set zone "Trust" tcp-rst set zone "Untrust" block unset zone "Untrust" tcp-rst set zone "MGT" block unset zone "V1-Trust" tcp-rst unset zone "V1-Untrust" tcp-rst set zone "DMZ" tcp-rst unset zone "V1-DMZ" tcp-rst unset zone "VLAN" tcp-rst set zone "Untrust" screen tear-drop set zone "Untrust" screen syn-flood set zone "Untrust" screen ping-death set zone "Untrust" screen ip-filter-src set zone "Untrust" screen land set zone "V1-Untrust" screen tear-drop set zone "V1-Untrust" screen syn-flood set zone "V1-Untrust" screen ping-death set zone "V1-Untrust" screen ip-filter-src set zone "V1-Untrust" screen land set interface ethernet0/0 phy full 100mb set interface ethernet0/3 phy full 100mb set interface ethernet0/4 phy full 100mb set interface ethernet0/5 phy full 100mb set interface ethernet0/6 phy full 100mb set interface "ethernet0/0" zone "Untrust" set interface "ethernet0/1" zone "Null" set interface "bgroup0" zone "Trust" set interface "bgroup1" zone "Trust" set interface "bgroup2" zone "Trust" set interface bgroup2 port ethernet0/2 set interface bgroup0 port ethernet0/3 set interface bgroup0 port ethernet0/4 set interface bgroup1 port ethernet0/5 set interface bgroup1 port ethernet0/6 unset interface vlan1 ip set interface ethernet0/0 ip 215.173.182.18/29 set interface ethernet0/0 route set interface bgroup0 ip 192.168.1.1/24 set interface bgroup0 nat set interface bgroup1 ip 192.168.2.1/24 set interface bgroup1 nat set interface bgroup2 ip 192.168.3.1/24 set interface bgroup2 nat set interface ethernet0/0 gateway 215.173.182.17 unset interface vlan1 bypass-others-ipsec unset interface vlan1 bypass-non-ip set interface ethernet0/0 ip manageable set interface bgroup0 ip manageable set interface bgroup1 ip manageable set interface bgroup2 ip manageable set interface bgroup0 manage mtrace unset interface bgroup1 manage ssh unset interface bgroup1 manage telnet unset interface bgroup1 manage snmp unset interface bgroup1 manage ssl unset interface bgroup1 manage web unset interface bgroup2 manage ssh unset interface bgroup2 manage telnet unset interface bgroup2 manage snmp unset interface bgroup2 manage ssl unset interface bgroup2 manage web set interface ethernet0/0 vip 215.173.182.19 2048 "PPTP-VPN" 192.168.1.131 set interface ethernet0/0 vip 215.173.182.19 + 4280 "CrashPlan Server" 192.168.1.131 set interface ethernet0/0 vip 215.173.182.19 + 4282 "CrashPlan Console" 192.168.1.131 set interface ethernet0/0 vip 215.173.182.22 22 "MyVOIP_TCP22" 192.168.2.127 set interface ethernet0/0 vip 215.173.182.22 + 4569 "MyVOIP_UDP4569" 192.168.2.127 set interface ethernet0/0 vip 215.173.182.22 + 3389 "MyRDP" 192.168.2.202 set interface ethernet0/0 vip 215.173.182.22 + 873 "MyRsync" 192.168.2.201 set interface ethernet0/0 vip 215.173.182.22 + 80 "HTTP" 192.168.2.202 set interface ethernet0/0 vip 215.173.182.22 + 2048 "PPTP-VPN" 192.168.2.201 set interface ethernet0/0 vip 215.173.182.22 + 8080 "NZ_FMS_8080" 192.168.2.216 set interface ethernet0/0 vip 215.173.182.22 + 1935 "NZ_FMS_1935" 192.168.2.216 set interface bgroup0 dhcp server service set interface bgroup1 dhcp server service set interface bgroup2 dhcp server service set interface bgroup0 dhcp server auto set interface bgroup1 dhcp server auto set interface bgroup2 dhcp server auto set interface bgroup0 dhcp server option domainname companyalan set interface bgroup0 dhcp server option dns1 192.168.1.131 set interface bgroup1 dhcp server option domainname companyblan set interface bgroup1 dhcp server option dns1 192.168.2.202 set interface bgroup2 dhcp server option dns1 8.8.8.8 set interface bgroup2 dhcp server option wins1 8.8.4.4 set interface bgroup0 dhcp server ip 192.168.1.2 to 192.168.1.116 set interface bgroup1 dhcp server ip 192.168.2.2 to 192.168.2.116 set interface bgroup2 dhcp server ip 192.168.3.2 to 192.168.3.126 unset interface bgroup0 dhcp server config next-server-ip unset interface bgroup1 dhcp server config next-server-ip unset interface bgroup2 dhcp server config next-server-ip set interface "ethernet0/0" mip 215.173.182.21 host 192.168.2.202 netmask 255.255.255.255 vr "trust-vr" set interface "serial0/0" modem settings "USR" init "AT&F" set interface "serial0/0" modem settings "USR" active set interface "serial0/0" modem speed 115200 set interface "serial0/0" modem retry 3 set interface "serial0/0" modem interval 10 set interface "serial0/0" modem idle-time 10 set flow tcp-mss unset flow tcp-syn-check unset flow tcp-syn-bit-check set flow reverse-route clear-text prefer set flow reverse-route tunnel always set pki authority default scep mode "auto" set pki x509 default cert-path partial set pki x509 dn name "[email protected]" set dns host dns1 0.0.0.0 set dns host dns2 0.0.0.0 set dns host dns3 0.0.0.0 set address "Trust" "192.168.1.0/24" 192.168.1.0 255.255.255.0 set address "Trust" "192.168.2.0/24" 192.168.2.0 255.255.255.0 set address "Trust" "192.168.3.0/24" 192.168.3.0 255.255.255.0 set crypto-policy exit set ike respond-bad-spi 1 set ike ikev2 ike-sa-soft-lifetime 60 unset ike ikeid-enumeration unset ike dos-protection unset ipsec access-session enable set ipsec access-session maximum 5000 set ipsec access-session upper-threshold 0 set ipsec access-session lower-threshold 0 set ipsec access-session dead-p2-sa-timeout 0 unset ipsec access-session log-error unset ipsec access-session info-exch-connected unset ipsec access-session use-error-log set vrouter "untrust-vr" exit set vrouter "trust-vr" exit set l2tp default ppp-auth chap set url protocol websense exit set policy id 1 from "Trust" to "Untrust" "Any" "Any" "ANY" permit set policy id 1 exit set policy id 2 from "Untrust" to "Trust" "Any" "VIP(215.173.182.19)" "PPTP-VPN" permit traffic set policy id 2 exit set policy id 3 from "Untrust" to "Trust" "Any" "VIP(215.173.182.22)" "HTTP" permit log set policy id 3 set service "MyRDP" set service "MyRsync" set service "MyVOIP_TCP22" set service "MyVOIP_UDP4569" exit set policy id 6 from "Trust" to "Trust" "192.168.1.0/24" "192.168.2.0/24" "ANY" deny set policy id 6 exit set policy id 7 from "Trust" to "Trust" "192.168.2.0/24" "192.168.1.0/24" "ANY" deny set policy id 7 exit set policy id 8 from "Trust" to "Trust" "192.168.3.0/24" "192.168.1.0/24" "ANY" deny set policy id 8 exit set policy id 9 from "Trust" to "Trust" "192.168.3.0/24" "192.168.2.0/24" "ANY" deny set policy id 9 exit set policy id 10 from "Untrust" to "Trust" "Any" "MIP(215.173.182.21)" "NZ_FTP" permit set policy id 10 exit set policy id 11 from "Untrust" to "Trust" "Any" "VIP(215.173.182.22)" "PPTP-VPN" permit set policy id 11 exit set policy id 12 from "Untrust" to "Trust" "Any" "VIP(215.173.182.22)" "NZ_FMS_1935" permit set policy id 12 set service "NZ_FMS_8080" exit set policy id 13 from "Untrust" to "Trust" "Any" "VIP(215.173.182.19)" "CrashPlan Console" permit set policy id 13 set service "CrashPlan Server" exit set nsmgmt bulkcli reboot-timeout 60 set ssh version v2 set config lock timeout 5 unset license-key auto-update set telnet client enable set snmp port listen 161 set snmp port trap 162 set vrouter "untrust-vr" exit set vrouter "trust-vr" unset add-default-route exit set vrouter "untrust-vr" exit set vrouter "trust-vr" exit Note that I've previously posted a similar question (pertaining to the same device & replacement, but ultimately caused by a malfunctioning switch, and thus clouding the current issue): Outbound traffic being blocked for MIP/VIPped servers (Juniper SSG5)

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• What sense does asynchronous IO make if the thread is blocked anyway (see example)

  - by codymanix

  Hello, I found an example for async ftp upload on msdn which does the following (snippet): // Asynchronously get the stream for the file contents. request.BeginGetRequestStream( new AsyncCallback (EndGetStreamCallback), state ); // Block the current thread until all operations are complete. waitObject.WaitOne(); The thing what I do not understand here is, which sense does asynchronous IO make if the thread is blocked anyway with an explicit waithandle. I always thought the advantage of asynchronous IO was that the user/programm does not have to wait.

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• C# DirectSound - Capture buffers not continuous

  - by Wizche

  Hi, I'm trying to capture raw data from my line-in using DirectSound. My problem is that, from a buffer to another the data are just inconsistent, if for example I capture a sine I see a jump from my last buffer and the new one. To detected this I use a graph widget to draw the first 500 elements of the last buffer and the 500 elements from the new one: Snapshot I initialized my buffer this way: format = new WaveFormat { SamplesPerSecond = 44100, BitsPerSample = (short)bitpersample, Channels = (short)channels, FormatTag = WaveFormatTag.Pcm }; format.BlockAlign = (short)(format.Channels * (format.BitsPerSample / 8)); format.AverageBytesPerSecond = format.SamplesPerSecond * format.BlockAlign; _dwNotifySize = Math.Max(4096, format.AverageBytesPerSecond / 8); _dwNotifySize -= _dwNotifySize % format.BlockAlign; _dwCaptureBufferSize = NUM_BUFFERS * _dwNotifySize; // my capture buffer _dwOutputBufferSize = NUM_BUFFERS * _dwNotifySize / channels; // my output buffer I set my notifications one at half the buffer and one at the end: _resetEvent = new AutoResetEvent(false); _notify = new Notify(_dwCapBuffer); bpn1 = new BufferPositionNotify(); bpn1.Offset = ((_dwCapBuffer.Caps.BufferBytes) / 2) - 1; bpn1.EventNotifyHandle = _resetEvent.SafeWaitHandle.DangerousGetHandle(); bpn2 = new BufferPositionNotify(); bpn2.Offset = (_dwCapBuffer.Caps.BufferBytes) - 1; bpn2.EventNotifyHandle = _resetEvent.SafeWaitHandle.DangerousGetHandle(); _notify.SetNotificationPositions(new BufferPositionNotify[] { bpn1, bpn2 }); observer.updateSamplerStatus("Events listener initialization complete!\r\n"); And here is how I process the events. /* Process thread */ private void eventReceived() { int offset = 0; _dwCaptureThread = new Thread((ThreadStart)delegate { _dwCapBuffer.Start(true); while (isReady) { _resetEvent.WaitOne(); // Notification received /* Read the captured buffer */ Array read = _dwCapBuffer.Read(offset, typeof(short), LockFlag.None, _dwOutputBufferSize - 1); observer.updateTextPacket("Buffer: " + count.ToString() + " # " + read.GetValue(read.Length - 1).ToString() + " # " + read.GetValue(0).ToString() + "\r\n"); /* Print last/new part of the buffer to the debug graph */ short[] graphData = new short[1001]; Array.Copy(read, graphData, 1000); db.SetBufferDebug(graphData, 500); observer.updateGraph(db.getBufferDebug()); offset = (offset + _dwOutputBufferSize) % _dwCaptureBufferSize; /* Out buffer not used */ /*_dwDevBuffer.Write(0, read, LockFlag.EntireBuffer); _dwDevBuffer.SetCurrentPosition(0); _dwDevBuffer.Play(0, BufferPlayFlags.Default);*/ } _dwCapBuffer.Stop(); }); _dwCaptureThread.Start(); } Any advise? I'm sure I'm failing somewhere in the event processing, but I cant find where. I had developed the same application using the WaveIn API and it worked well. Thanks a lot...

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