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• Starting x11vnc remotely when X server is already running

  - by Madiyaan Damha

  I have a ubuntu linux machine that I have already logged into and X server is running (it is pass the login manager like gdm). I can access this machine through ssh. My goal is to start x11vnc on this machine and attach it to the X server that is already running. When I ssh into the machine and start x11vnc, it says: X11 was unable to open the X DISPLAY ":0", it cannot continue. How can I start x11vnc on the remote machine if I don't have physical access to it and Xserver has already started. The reason I want to do this is because the remote machine has several windows open that I want to work on. Thanks,

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• Send HTTP Post with default browser with C#

  - by Paul

  Hello, I am wondering if it is possible to send POST data with the default browser of a computer in C#. Here is the situation. My client would like the ability to have their C# application open their browser and send client information to a webform. This webform would be behind a login screen. The assumption from the application side is that once the client data is sent to the login screen, the login screen would pass that information onto the webform to prepopulate it. This would be done over HTTPS and the client would like this to be done with a POST and not a GET as client information would be sent as plain text. I have found some wonderful solutions that do POSTS and handle the requests. As an example http://geekswithblogs.net/rakker/archive/2006/04/21/76044.aspx So the TL;DR version of this would be 1) Open Browser 2) Open some URL with POST data Thanks for your help, Paul

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• Making a DVD video with a still image and PCM 16bit audio with ffmpeg

  - by João

  I'm trying to make a small video with a still image and a sound file playing in the background to pass it to dvdauthor and create a DVD. The command I'm using is this: ffmpeg -loop_input -i image.jpg -qscale 2 -i song.flac -aspect 4:3 -target pal-dvd -acodec pcm_s16le -shortest output.mpg However, the resulting video file doesn't have sound at all (testing it on VLC Player). I don't know if I can't combine "-acodec pcm_s16le" with "-target pal-dvd" to override the later, or if there is something else wrong with the command. If I try without the "-acodec pcm_s16le" parameter the video and audio works, I can even create a DVD ISO with it. However, the audio stays as AC3. I wanted to include with the video the lossless audio, not a compressed one. I suppose the DVD standart allows to have PCM audio in it, am I right?

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• raising a vb6 event using interop

  - by Steve

  Hi, I have a legacy VB6 component that I've imported into VS using tlbimp.exe to generate my interop assembly. The VB6 component defines an event that allows me to pass messages within VB6. Public Event Message(ByVal iMsg As Variant, oCancel As Variant) I would really like to be able to raise this even in my C# program, but its getting imported as an event, not a delegate or something else useful. So, I can only listen, but never fire. Does anyone know how to fire an event contained within VB6? The C# event looks like [TypeLibType(16)] [ComVisible(false)] public interface __MyObj_Event { event __MyObj_MessageEventHandler Message; } I unfortunately cannot change the VB6 code. Thanks.

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• Modal Dialog and Form Elements

  - by James Jeffery

  I have a form that contains some fields and a recaptcha box. I have hidden the recaptcha box. The user clicks "create profile" and a modal dialog pops up with the recaptcha box. All fine. But, how do I submit that information? I am using Javascript to create the recaptcha HTML in the modal. I have a button called "Create Profile" that has this code attatched to the onclick: $("#form").submit() The form data gets submitted to the create.php page, but the recaptcha info does not. Do I have to manually pass this information via the post request to create.php? Without the modal dialog it works fine. I can't understand what's going on. Any ideas?

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• Exception design: Custom exceptions reading data from file?

  - by User

  I have a method that reads data from a comma separated text file and constructs a list of entity objects, let's say customers. So it reads for example, Name Age Weight Then I take these data objects and pass them to a business layer that saves them to a database. Now the data in this file might be invalid, so I'm trying to figure out the best error handling design. For example, the text file might have character data in the Age field. Now my question is, should I throw an exception such as InvalidAgeException from the method reading the file data? And suppose there is length restriction on the Name field, so if the length is greater than max characters do I throw a NameTooLongException or just an InvalidNameException, or do I just accept it and wait until the business layer gets a hold of it and throw exceptions from there? (If you can point me to a good resource that would be good too)

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• Detecting a Key Press Squashed by Another Application

  - by Eric Smith

  I have a WPF application I'm planning to use as an overlay for a DirectX game (specifically Bad Company 2). I'm using WM_KEYBOARD_LL hook to detect KeyDown events so I can bring my app to the foreground when a specific button is pressed. This works perfectly except for when the game is running (I've also noticed this problem with Window's "Chess Titans" so it may be a DirectX thing). As far as I can work out, when the game detects a keyboard press, it "eats" the event and doesn't pass the CallNextHookEx() method like it should, which would allow the key press message to be moved along to the next application in the queue. I'm wondering if there's any sort of work-around to this? It seems kind of unfair that a single application can just willy-nilly eat up messages like that. Thanks! :) Relevant MSDN documentation: http://msdn.microsoft.com/en-us/library/ms644985%28VS.85%29.aspx

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• mysql query clarification

  - by JPro

  I have a query which I am wondering if the result I am getting is the one that I am expecting. The table structure goes like this : Table : results ID TestCase Set Analyzed Verdict StartTime Platform 1 1010101 ros2 false fail 18/04/2010 20:23:44 P1 2 1010101 ros3 false fail 19/04/2010 22:22:33 P1 3 1232323 ros2 true pass 19/04/2010 22:22:33 P1 4 1232323 ros3 false fail 29/04/2010 22:22:33 P2 Table : testcases ID TestCase type 1 1010101 NOSNOS 2 1232323 N212NS is there any way to display only the latest fails on each platform? in the above case Result shoud be : ID TestCase Set Analyzed Verdict StartTime Platform type 2 1010101 ros3 false fail 19/04/2010 22:22:33 P1 NOSNOS 4 1232323 ros3 false fail 29/04/2010 22:22:33 P2 N212NS

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• createChildren Called Before Component's MXML Bracket Logic Is Evaluated

  - by Nalandial

  I have the following MXML: <mx:Script> var someBoolean:Boolean = determineSomeCondition(); </mx:Script> .... <foo:MyComponent somePropertyExpectingIDataRenderer="{ someBoolean ? new Component1ThatImplementsIDataRenderer() : new Component2ThatImplementsIDataRenderer() }"> </foo:MyComponent> I have also overridden the createChildren() function: override protected function createChildren():void { super.createChildren(); //do something with somePropertyExpectingIDataRenderer } My problem is: createChildren() is being called before the squiggly bracket logic is being evaluated, so in createChildren(), somePropertyExpectingIDataRenderer is null. However if I pass the component via MXML like this: <foo:MyComponent> <bar:somePropertyExpectingIDataRenderer> <baz:Component1ThatImplementsIDataRenderer/> </bar:somePropertyExpectingIDataRenderer> </foo:MyComponent> Then when createChildren() is called, that same property isn't null. Is this supposed to happen and if so, what other workarounds should I consider?

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• Message pump in .NET Windows service

  - by Pickles

  I have a Windows Service written in C# that handles all of our external hardware I/O for a kiosk application. One of our new devices is a USB device that comes with an API in a native DLL. I have a proper P/Invoke wrapper class created. However, this API must be initialized with an HWnd to a windows application because it uses the message pump to raise asynchronous events. Besides putting in a request to the hardware manufacturer to provide us with an API that does not depend on a Windows message pump, is there any way to manually instantiate a message pump in a new thread in my Windows Service that I can pass into this API? Do I actually have to create a full Application class, or is there a lower level .NET class that encapsulates a message pump?

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• Redirect Output of Capistrano

  - by Eric Lubow

  I have a Capistrano deploy file (Capfile) that is rather large, contains a few namespaces and generally has a lot of information already in it. My ultimate goal is, using the Tinder gem, paste the output of the entire deployment into Campfire. I have Tinder setup properly already. I looked into using the Capistrano capture method, but that only works for the first host. Additionally that would be a lot of work to go through and add something like: output << capture 'foocommand' Specifically, I am looking to capture the output of any deployment from that file into a variable (in addition to putting it to STDOUT so I can see it), then pass that output in the variable into a function called notify_campfire. Since the notify_campfire function is getting called at the end of a task (every task regardless of the namespace), it should have the task name available to it and the output (which is stored in that output variable). Any thoughts on how to accomplish this would be greatly appreciated.

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

  - by Patrick Klug

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

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• jQuery Connected Sortable Lists, Save Order to MySQL

  - by user300999

  Hello Hoping that using something like this demo it is possible to drag items within and between two columns, and update their order either live or with a "save" button to MySQL. Point being that you can make changes and return to the page later to view or update your ordering. http://pilotmade.com/draggable2.html Doing it for just one column is fine, but when I try to pass the order of both columns, the issue seems to be passing multiple serialized arrays with jQuery to a PHP/MySQL update script. Any insight would be much appreciated.

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• Flex Force Decimal

  - by babyangel86

  Hi, I'm looking for a regex or a way to format the NumberValidator so that only decimal places are allowed. The domain="real" allows you to put integer values, but I need to force the user to but in 2.0 if they want an integer. This is because they pass through a Castor mapping file, it complains if it gets an integer when it expects a decimal. I dont want to restrict the number of decimal places, just insist that there must be a point, and a number after it. Any help would be much appreciated.

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• Passing an instantiated class to concrete class derived by Castle Windsor

  - by Tr1stan

  I have a system that I'm using to test some new architecture. I have the following setup (In MVC2 .Net - C Sharp): View < Controller < Service < Repository < DB I'm using Castle Windsor as my DI (IoC) controller, and this is working just fine in both the Service and Repo layers. However, I'm now at a point where I would like to pass an Entity Framework (DatabaseNameEntity) to the constructor to the Service, and then to the Repo, so that I have something similar to a Unit of Work pattern per request (This feels like what I'm trying to achieve anyway) - and I'm having trouble working out how this can be done using Castle Windsor. Am I going off on a silly tangent? Any pointers appreciated.

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• Init modules in apache2

  - by user306963

  Hello, I used to write apache modules in apache 1.3, but these days I am willing to pass to apache2. The module that I am writing at the moment has is own binary data, not a database, for performance purposes. I need to load this data in shared memory, so every child can access it without making his own copy, and it would be practical to load/create the binary data at startup, as I was used to do with apache 1.3. Problem is that I don't find an init event in apache2, in 1.3 in the module struct, immediatly after STANDARD_MODULE_STUFF you find a place for a /** module initializer */, in which you can put a function that will be executed early. Body of the function I used to write is something like: if ( getppid == 1 ) { // Load global data here // this is the parent process void* data = loadGlobalData( someFilePath ); setGlobalData( config, data ); } else { // this is the init of a child process // do nothing } I am looking for a place in apache2 in where I can put a similar function. Can you help? Thanks Benvenuto

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• Using sphinx to create context sensitive html help

  - by bluebill

  Hi all, I am currently using AsciiDoc (http://www.methods.co.nz/asciidoc/) for documenting my software projects because it supports pdf and html help generation. I am currently running it through cygwin so that the a2x tool chain functions properly. This works well for me but is a pain to setup on other windows computers. I have been looking for alternative methods and recently revisited Sphinx. Noticing that it now produces html help files I gave it a try and it seems to work well in the small tests I performed. My question is, is there a way to specify map id's for context sensitive help in the text so that my windows programs can call the proper help api and the file is launched and opened to the desired location? In AsciiDoc I am using "pass::[]". By using these constructs a context.h and alias.h are generated along with the other html help files (context sensitive help information).

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• django link to any user profile in social comunity

  - by dana

  i am trying to build a virtual comunity, and i have a profile page, and a personal page. In the profile page, one can see only the posts of one user(the user whos profile is checked), in the personal page one can see his posts, plus all the posts he has subscribed to (just like in Facebook) it's a little confusing for me how i can link to the profile of one user, i mean when anybody clicks on a username, it should link to his personal profile page. for example, if someone searches name "abc", the rsult would be "abc",and link to his profile. How can i pass to one function the username or id of a linked user? i mean, showing the profile of the logged in user who is checking his profile is quite easy.But how about another user profile, if one wants to access it? thanks a lot!

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• How to get java to recognize symbolic links under cygwin

  - by Keith Randall

  Here's a very simple java program to print the first line of a file: import java.io.* public class test { public static void main(String[] args) throws IOException { System.out.print(new BufferedReader(new FileReader(args[0])).readLine()); } } When I run this program under cygwin and pass it the name of a symbolic link, it prints the contents of the symbolic link, not the target of that link: $ echo foo > testfile $ ln -s testfile symlink_to_testfile $ java test testfile foo $ java test symlink_to_testfile !<symlink> ?t e s t f i l e How do I convince java to follow the symlink? I was hoping there was something simpler than implementing the redirect myself.

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• mootools slideshow2

  - by ioannis

  hello everyone. i am using slideshow2 by Aeron Glemann in a website.Does in generate the thumbnails or do i have to provide them?the images iam showing are coming from a cloud, and are passed to the slideshow in an array.the thumbs exist in the cloud. how can i pass them in the array if the show cannot create them? i have used the replace parameter with regex but it shows as thumbnails the full image and nothing happens when i alter the css properties for the thumbnails. the images are displayed. here is the line for the show creation: var myShow = new Slideshow('show', eval(res.value), { controller: true, height: 350,overlap: false, resize: false, hu: '',replace:[/^\S+.(gif|jpg|jpeg|png)$/,'t$1'],thumbnails: true, width: 600}); the value object contains the images from the cloud in format shown below: ['xx.jpg','yy.png',....] thank you very much for your time.

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• How to convert thousands of PDF files to a single Postscript file in a specified order

  - by tggagne

  I've discovered multiple options for convert a few to serveral PDFs into Postscript, but many are command-line programs with command-line limitations (this application lives on .NET). Our application generates tens-of-thousands of PDFs that we need to send to a printer, except BEFORE the Postscript is printed we need to edit the Postscript to insert print command instructions (duplex, tray-pulls, highlight color, etc.) I think a perfect solution might allow us to write the PDFs to a stream, and simultaneously allow us to read the output stream so we may edit the Postscript before writing it to a file. Of course, if I must create the file first containing all 10,000 PDFs and edit it in an additional pass, I'm OK with that, too. I should mention that speed is important. I need to print 10,000 at a time, but need to keep the printers busy 24-hours/day.

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• Creating a service that takes parameters with WMI

  - by Johan_B

  I want to create a service that takes some parameters. How do I do this with WMI? In the commandline, it was sc create ServiceName binPath= ""C:\Path\Service.exe\" /Service somefile1.xml somefile2.xml" start=auto DisplayName="DisplayName" I have tried to use ManagementBaseObject inParams = managementClass.GetMethodParameters("create"); inParams["CommandLine"] = ""C:\Path\Service.exe\" somefile1.xml somefile2.xml" inParams["StartMode"] = StartMode.Auto; inParasm["DisplayName"] = "displayName"; but I do not know how to pass the two xml files? Any help will be greatly appreciated. Thanks! JB

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• Passing Querystring style parameters into Javascript file

  - by Mike Mengell

  Hi, Not sure if this is possible or even if I should do it, but I think it's quite interesting. I have a javascript file which I'm referencing in a flat HTML page. I'd like to pass in a parameter or two via the path to the script. Like this; <script src="/scripts/myJavascriptFile.js?config1=true" type="text/javascript"></script> Not really sure if it can work but it would make my solution a little easier for others to take my script and implement (arguable). Cheers, Mike

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• How can I return default at loop end in Scheme?

  - by Kufi Annan

  I'm trying to implement back-tracking search in Scheme. So far, I have the following: (define (backtrack n graph assignment) (cond (assignment-complete n assignment) (assignment) ) (define u (select-u graph assignment)) (define c 1) (define result 0) (let forLoop () (when (valid-choice graph assignment c) (hash-set! assignment u c) (set! result (backtrack n graph assignment)) (cond ((not (eq? result #f)) result)) (hash-remove! assignment u) ) (set! c (+ c 1)) (when (>= n c) (forLoop)) ) #f ) My functions assignment-complete and select-u pass unit tests. The argument assignment is a hash-table make with (make-hash), so it should be fine. I believe the problem I have is related to returning false at the end of the loop, if no recursive returns a non-false value (which should be a valid assignment).

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• RichFaces rich:clientId within facelets

  - by Matthias Hryniszak

  Hi there, I'm trying to something like this: <?xml version="1.0"/> <ui:composition ....> <h:inputText id="#{id}InputText" value="#{value}"/> <rich:calendar id="#{id}Shevron" popup="true" datePattern="ddMMyy" showInput="false" todayControlMode="hidden" enableManualInput="false" showApplyButton="false" updateDays="14" ondateselected="alert('#{rich:clientId('#{id}Shevron')}');" inputClass="xwingml-input"/> </ui:composition> The problem I'm facing here is that the actual client id is generated for my facelts components. Is there a way to pass an id to rich:clientId like this? If not how would one go about this kind of problem? Thanks in advance!.

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