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• How to save your Linux state (suspend to disk) periodically to recover from crashes?

  - by WoLpH

  One in a while my laptop crashes/dies because of a bad/empty battery, crappy wifi driver or whatever other reason. For a while I've wondered if it's possible to force Linux to periodically save the state (like vmware snapshots) to disk so you can restore from that with possibly slightly outdated work but at least with all of your apps open in the same state you've left them. I don't really see the point in having to boot everything from cratch constantly, although KDE saves your state on logout, that doesn't happen periodically (by default) either. It would make it much nicer to recover from your crashes if your ram was written to disk periodically. Anyone know if there's a system call to do this without also shutting down the machine? Even a manual button to save the entire state would be nice.

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• When FTPing into CentOS server, it will drop me into 2 different directores based upon FTP access tool

  - by Jonezin

  I have a fresh install of CentOS 5.7. I created a new user 'ftpuser' with a home directory set to '/var/ftp'. If I FTP to the server using a FTP client it drops me into that home directory(good). If I use IE and use 'ftp://myserver' it drops me into the root of the server(?what?). First: why is this happening, this doesn't seem like correct behavior. Second: How do I prevent this, how do I force 'home' directory no matter what FTP access mechanism? Thanks for any assistance!

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• Creating folders and uploading a file without using a web browser

  - by Ashpak

  I am using the Java Api We have a web application wherein we want our file to be uploaded on an on_click even on some submit button. We don't want the browser to prompt us to enter the username and password to get the access token. Instead, we can provide the username and the password through the code so that we get the access token and the file will be uploaded directly. Right now, OAuth 2 requires that we enter the username and password to be entered through the browser. Reading through the post, I see that we can authenticate for the first time, obtain a refresh token and then keep on refreshing that token periodically. But our application requirements does not allow for this work-flow. Is there any way to automate the process of entering the user credentials using Java code. or Is there any library that will keep the browser away from the process.

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• How to handle redirections with codeigniter?

  - by SinneR

  Hi, im having problems starting a codeigniter project, the problem is that when i do something in a controller and then i want a page to display the result, an example: i have a form to add a item to the database, i get all the data in the controller and save it to database and then i want (if all went well) to redirect to the main page with a success msg, i was doing this with $this->load->view('admin', $data); the problem is that the url keeps saying admin/addItem so everytime the page gets refreshed it adds another item, now i found the: redirect('admin','refresh'); but this only helps me when i dont need to display any msg because this function dont allow to send a $data var. Any ideas? Probably this is really easy to fix but i cant find a way to handle the flow of the application the way i want, any help is apreciated. thanks ;)

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• Can I float a block of text like an image?

  - by george.entenman.name

  If you change "float:right" to "float:left" in this W3schools example, you'll get an image floating to the left of the paragraph. I want to do the same thing with a block of text. The purpose is to be able to have little annotations to the left of paragraphs. If you know of any way to do this, I'd be very grateful. I'd be really grateful (and amazed) if there were a way to place this annotation midway in a paragraph and have text flow around it. I've searched all over for an answer but possibly don't know how to ask the question so that search engines can help me. So now I'm appealing to humans!!

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• My monitor constantly changes from DVI-D to HD15

  - by guest

  I noticed this lately, and it's becoming more often. Basically, when I start my PC, my monitor, which is connected with a DVI-D cable (I don't know what it's called), screen switches to the HD15, where HD15 isn't connected at all. Like, input is changed from DVI-D to HD15, therefore it just blacks out, and then goes back... it's not constant, but it's in random time intervals... I can't do anything on my computer because of this. I even tried connecting it with both DVI-D cable and HD15 cable to the processor, but it still sucks. Is there any way I could force my monitor to stay at only one input method? I'm on XP SP3, and this monitor is about 10 or less years old, a Sony model.

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• Creative an interactive GUI for a web application

  - by user2125844

  I have to create a web application (preferably using the Google App Engine) that will allow users to access it through a url link (not a Desktop application). The application graphically looks like a flow chart and each item in the chart can be selected to pull up a video (not in another window). It is recommended that I use Python. I have never made anything for the web before. Is there a best Python GUI API I should use? I've read quite a bit about Django so far I'm not sure if it is the best fit for this or not. Does anyone have any tips for starting this project? Thanks in advance!

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• Non-floated div drops below right floated div in IE9 (and 7)

  - by PVA

  This is a responsive site, (http://www.dermatologypartners.com) with desktop styles first. IE8 handles the pages correctly, though without CSS3 flourishes. But IE9 is dropping my navbar (on left) down, when it is up next to the right floated content in all the other browsers. My navbar is near the end of the HTML because I want it to flow over LAST, below page content but above the footer, in the smartphone version of the site -- which it does. The nav is NOT floated. It just rises to the top left and content is floated to the right. Except in IE9. I don't to have to redo all this, if I can just get an IE9 fix. It's not "float drop" - there's plenty of room available. I'm actually having the same problem in IE7, but I'm not concerned with IE7 -- but why 7 & 9, while 8 is fine? Thanks!

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• Is it practical to build a web site using strict XHTML and relying on CSS 100% for visual style?

  - by Micah

  I tend to take the academic approach all too often and adhere to strict principles in my development when the reality is that I could have finished the project sooner had I been a little less cautious. I'm looking to find the right amount of practicality. I want to take the "Zen" approach to designing a site which (in my words) says "Use HTML strictly for content structure, and let the CSS magic do the rest". How practical is this in reality? One of the issues I run into is that I want to develop (make functional) the site first, then come back in and design it later. I know structure-wise how I want the site to flow, but I haven't even begun playing with the CSS layout, graphics, or any of the other designy stuff. What is the right approach here?

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• Dynamic Type to do away with Reflection

  - by Rick Strahl

  The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions to walk an object hierarchy. With the introduction of dynamic much of the ReflectionUtils code can be removed for cleaner code that runs considerably faster to boot. The old Way - Reflection Here’s a really contrived example, but assume for a second, you’d want to dynamically retrieve a Page.Request.Url.AbsoluteUrl based on a Page instance in an ASP.NET Web Page request. The strongly typed version looks like this: string path = Page.Request.Url.AbsolutePath; Now assume for a second that Page wasn’t available as a strongly typed instance and all you had was an object reference to start with and you couldn’t cast it (right I said this was contrived :-)) If you’re using raw Reflection code to retrieve this you’d end up writing 3 sets of Reflection calls using GetValue(). Here’s some internal code I use to retrieve Property values as part of ReflectionUtils: /// <summary> /// Retrieve a property value from an object dynamically. This is a simple version /// that uses Reflection calls directly. It doesn't support indexers. /// </summary> /// <param name="instance">Object to make the call on</param> /// <param name="property">Property to retrieve</param> /// <returns>Object - cast to proper type</returns> public static object GetProperty(object instance, string property) { return instance.GetType().GetProperty(property, ReflectionUtils.MemberAccess).GetValue(instance, null); } If you want more control over properties and support both fields and properties as well as array indexers a little more work is required: /// <summary> /// Parses Properties and Fields including Array and Collection references. /// Used internally for the 'Ex' Reflection methods. /// </summary> /// <param name="Parent"></param> /// <param name="Property"></param> /// <returns></returns> private static object GetPropertyInternal(object Parent, string Property) { if (Property == "this" || Property == "me") return Parent; object result = null; string pureProperty = Property; string indexes = null; bool isArrayOrCollection = false; // Deal with Array Property if (Property.IndexOf("[") > -1) { pureProperty = Property.Substring(0, Property.IndexOf("[")); indexes = Property.Substring(Property.IndexOf("[")); isArrayOrCollection = true; } // Get the member MemberInfo member = Parent.GetType().GetMember(pureProperty, ReflectionUtils.MemberAccess)[0]; if (member.MemberType == MemberTypes.Property) result = ((PropertyInfo)member).GetValue(Parent, null); else result = ((FieldInfo)member).GetValue(Parent); if (isArrayOrCollection) { indexes = indexes.Replace("[", string.Empty).Replace("]", string.Empty); if (result is Array) { int Index = -1; int.TryParse(indexes, out Index); result = CallMethod(result, "GetValue", Index); } else if (result is ICollection) { if (indexes.StartsWith("\"")) { // String Index indexes = indexes.Trim('\"'); result = CallMethod(result, "get_Item", indexes); } else { // assume numeric index int index = -1; int.TryParse(indexes, out index); result = CallMethod(result, "get_Item", index); } } } return result; } /// <summary> /// Returns a property or field value using a base object and sub members including . syntax. /// For example, you can access: oCustomer.oData.Company with (this,"oCustomer.oData.Company") /// This method also supports indexers in the Property value such as: /// Customer.DataSet.Tables["Customers"].Rows[0] /// </summary> /// <param name="Parent">Parent object to 'start' parsing from. Typically this will be the Page.</param> /// <param name="Property">The property to retrieve. Example: 'Customer.Entity.Company'</param> /// <returns></returns> public static object GetPropertyEx(object Parent, string Property) { Type type = Parent.GetType(); int at = Property.IndexOf("."); if (at < 0) { // Complex parse of the property return GetPropertyInternal(Parent, Property); } // Walk the . syntax - split into current object (Main) and further parsed objects (Subs) string main = Property.Substring(0, at); string subs = Property.Substring(at + 1); // Retrieve the next . section of the property object sub = GetPropertyInternal(Parent, main); // Now go parse the left over sections return GetPropertyEx(sub, subs); } As you can see there’s a fair bit of code involved into retrieving a property or field value reliably especially if you want to support array indexer syntax. This method is then used by a variety of routines to retrieve individual properties including one called GetPropertyEx() which can walk the dot syntax hierarchy easily. Anyway with ReflectionUtils I can  retrieve Page.Request.Url.AbsolutePath using code like this: string url = ReflectionUtils.GetPropertyEx(Page, "Request.Url.AbsolutePath") as string; This works fine, but is bulky to write and of course requires that I use my custom routines. It’s also quite slow as the code in GetPropertyEx does all sorts of string parsing to figure out which members to walk in the hierarchy. Enter dynamic – way easier! .NET 4.0’s dynamic type makes the above really easy. The following code is all that it takes: object objPage = Page; // force to object for contrivance :) dynamic page = objPage; // convert to dynamic from untyped object string scriptUrl = page.Request.Url.AbsolutePath; The dynamic type assignment in the first two lines turns the strongly typed Page object into a dynamic. The first assignment is just part of the contrived example to force the strongly typed Page reference into an untyped value to demonstrate the dynamic member access. The next line then just creates the dynamic type from the Page reference which allows you to access any public properties and methods easily. It also lets you access any child properties as dynamic types so when you look at Intellisense you’ll see something like this when typing Request.: In other words any dynamic value access on an object returns another dynamic object which is what allows the walking of the hierarchy chain. Note also that the result value doesn’t have to be explicitly cast as string in the code above – the compiler is perfectly happy without the cast in this case inferring the target type based on the type being assigned to. The dynamic conversion automatically handles the cast when making the final assignment which is nice making for natural syntnax that looks *exactly* like the fully typed syntax, but is completely dynamic. Note that you can also use indexers in the same natural syntax so the following also works on the dynamic page instance: string scriptUrl = page.Request.ServerVariables["SCRIPT_NAME"]; The dynamic type is going to make a lot of Reflection code go away as it’s simply so much nicer to be able to use natural syntax to write out code that previously required nasty Reflection syntax. Another interesting thing about the dynamic type is that it actually works considerably faster than Reflection. Check out the following methods that check performance: void Reflection() { Stopwatch stop = new Stopwatch(); stop.Start(); for (int i = 0; i < reps; i++) { // string url = ReflectionUtils.GetProperty(Page,"Title") as string;// "Request.Url.AbsolutePath") as string; string url = Page.GetType().GetProperty("Title", ReflectionUtils.MemberAccess).GetValue(Page, null) as string; } stop.Stop(); Response.Write("Reflection: " + stop.ElapsedMilliseconds.ToString()); } void Dynamic() { Stopwatch stop = new Stopwatch(); stop.Start(); dynamic page = Page; for (int i = 0; i < reps; i++) { string url = page.Title; //Request.Url.AbsolutePath; } stop.Stop(); Response.Write("Dynamic: " + stop.ElapsedMilliseconds.ToString()); } The dynamic code runs in 4-5 milliseconds while the Reflection code runs around 200+ milliseconds! There’s a bit of overhead in the first dynamic object call but subsequent calls are blazing fast and performance is actually much better than manual Reflection. Dynamic is definitely a huge win-win situation when you need dynamic access to objects at runtime.© Rick Strahl, West Wind Technologies, 2005-2010Posted in .NET  CSharp  

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• Postgresql fails to start on Ubuntu 10.04.4 LTS

  - by cancerballs

  I installed postgresql 9.2 from add-apt-repository ppa:pitti/postgresql using apt-get install postgresql-9.2 At the end of the install and every time I try to launch postgresql by using the following command /etc/init.d/postgresql start or service postgresql start I get this error: Error: could not exec /usr/lib/postgresql/9.2/bin/pg_ctl /usr/lib/postgresql/9.2/bin/pg_ctl start -D /var/lib/postgresql/9.2/main -l /var/log/postgresql/postgresql-9.2-main.log -s -o -c config_file="/etc/postgresql/9.2/main/postgresql.conf" : [fail] invoke-rc.d: initscript postgresql, action "start" failed. dpkg: error processing postgresql-9.2 (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: postgresql-9.2 E: Sub-process /usr/bin/dpkg returned an error code (1) I have tried everything found here: How to thoroughly purge and reinstall postgresql on ubuntu and here: Eliminating non working postgresql installations on ubuntu 10-04 and starting af. I have also done dpkg -P --force-remove-reinstreq postgresql-client-9.2 in my attempt to remove everything postgres related from my server. After removing postgresql I have used dpkg --get-selections | grep postg To be sure there is nothing left and I can do a clean install. I have also made sure that the files and folders mentioned in the error message have the right permissions. The /var/log/postgresql/postgresql-9.2-main.log file is empty. I have tried installing every postgresql version from 8.3 to 9.2 and I get the same error on every time. I once managed to compile postgresql from the source provided on their website but then I encountered weird errors with psycopg2 so I figured I'd install postgresql this way and avoid those errors. Also when I type apt-get install postgresql it by default tries to install the 8.3 version even when I can find the package by typing apt-get install postgresql-9.2.

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• PowerShell Script to Deploy Multiple VM on Azure in Parallel #azure #powershell

  - by Marco Russo (SQLBI)

  This blog is usually dedicated to Business Intelligence and SQL Server, but I didn’t found easily on the web simple PowerShell scripts to help me deploying a number of virtual machines on Azure that I use for testing and development. Since I need to deploy, start, stop and remove many virtual machines created from a common image I created (you know, Tabular is not part of the standard images provided by Microsoft…), I wanted to minimize the time required to execute every operation from my Windows Azure PowerShell console (but I suggest you using Windows PowerShell ISE), so I also wanted to fire the commands as soon as possible in parallel, without losing the result in the console. In order to execute multiple commands in parallel, I used the Start-Job cmdlet, and using Get-Job and Receive-Job I wait for job completion and display the messages generated during background command execution. This technique allows me to reduce execution time when I have to deploy, start, stop or remove virtual machines. Please note that a few operations on Azure acquire an exclusive lock and cannot be really executed in parallel, but only one part of their execution time is subject to this lock. Thus, you obtain a better response time also in these scenarios (this is the case of the provisioning of a new VM). Finally, when you remove the VMs you still have the disk containing the virtual machine to remove. This cannot be done just after the VM removal, because you have to wait that the removal operation is completed on Azure. So I wrote a script that you have to run a few minutes after VMs removal and delete disks (and VHD) no longer related to a VM. I just check that the disk were associated to the original image name used to provision the VMs (so I don’t remove other disks deployed by other batches that I might want to preserve). These examples are specific for my scenario, if you need more complex configurations you have to change and adapt the code. But if your need is to create multiple instances of the same VM running in a workgroup, these scripts should be good enough. I prepared the following PowerShell scripts: ProvisionVMs: Provision many VMs in parallel starting from the same image. It creates one service for each VM. RemoveVMs: Remove all the VMs in parallel – it also remove the service created for the VM StartVMs: Starts all the VMs in parallel StopVMs: Stops all the VMs in parallel RemoveOrphanDisks: Remove all the disks no longer used by any VMs. Run this script a few minutes after RemoveVMs script. ProvisionVMs # Name of subscription $SubscriptionName = "Copy the SubscriptionName property you get from Get-AzureSubscription"   # Name of storage account (where VMs will be deployed) $StorageAccount = "Copy the Label property you get from Get-AzureStorageAccount"   function ProvisionVM( [string]$VmName ) {     Start-Job -ArgumentList $VmName {         param($VmName) $Location = "Copy the Location property you get from Get-AzureStorageAccount" $InstanceSize = "A5" # You can use any other instance, such as Large, A6, and so on $AdminUsername = "UserName" # Write the name of the administrator account in the new VM $Password = "Password"      # Write the password of the administrator account in the new VM $Image = "Copy the ImageName property you get from Get-AzureVMImage" # You can list your own images using the following command: # Get-AzureVMImage | Where-Object {$_.PublisherName -eq "User" }         New-AzureVMConfig -Name $VmName -ImageName $Image -InstanceSize $InstanceSize |             Add-AzureProvisioningConfig -Windows -Password $Password -AdminUsername $AdminUsername|             New-AzureVM -Location $Location -ServiceName "$VmName" -Verbose     } }   # Set the proper storage - you might remove this line if you have only one storage in the subscription Set-AzureSubscription -SubscriptionName $SubscriptionName -CurrentStorageAccount $StorageAccount   # Select the subscription - this line is fundamental if you have access to multiple subscription # You might remove this line if you have only one subscription Select-AzureSubscription -SubscriptionName $SubscriptionName   # Every line in the following list provisions one VM using the name specified in the argument # You can change the number of lines - use a unique name for every VM - don't reuse names # already used in other VMs already deployed ProvisionVM "test10" ProvisionVM "test11" ProvisionVM "test12" ProvisionVM "test13" ProvisionVM "test14" ProvisionVM "test15" ProvisionVM "test16" ProvisionVM "test17" ProvisionVM "test18" ProvisionVM "test19" ProvisionVM "test20"   # Wait for all to complete While (Get-Job -State "Running") {     Get-Job -State "Completed" | Receive-Job     Start-Sleep 1 }   # Display output from all jobs Get-Job | Receive-Job   # Cleanup of jobs Remove-Job *   # Displays batch completed echo "Provisioning VM Completed" RemoveVMs # Name of subscription $SubscriptionName = "Copy the SubscriptionName property you get from Get-AzureSubscription"   function RemoveVM( [string]$VmName ) {     Start-Job -ArgumentList $VmName {         param($VmName)         Remove-AzureService -ServiceName $VmName -Force -Verbose     } }   # Select the subscription - this line is fundamental if you have access to multiple subscription # You might remove this line if you have only one subscription Select-AzureSubscription -SubscriptionName $SubscriptionName   # Every line in the following list remove one VM using the name specified in the argument # You can change the number of lines - use a unique name for every VM - don't reuse names # already used in other VMs already deployed RemoveVM "test10" RemoveVM "test11" RemoveVM "test12" RemoveVM "test13" RemoveVM "test14" RemoveVM "test15" RemoveVM "test16" RemoveVM "test17" RemoveVM "test18" RemoveVM "test19" RemoveVM "test20"   # Wait for all to complete While (Get-Job -State "Running") {     Get-Job -State "Completed" | Receive-Job     Start-Sleep 1 }   # Display output from all jobs Get-Job | Receive-Job   # Cleanup Remove-Job *   # Displays batch completed echo "Remove VM Completed" StartVMs # Name of subscription $SubscriptionName = "Copy the SubscriptionName property you get from Get-AzureSubscription"   function StartVM( [string]$VmName ) {     Start-Job -ArgumentList $VmName {         param($VmName)         Start-AzureVM -Name $VmName -ServiceName $VmName -Verbose     } }   # Select the subscription - this line is fundamental if you have access to multiple subscription # You might remove this line if you have only one subscription Select-AzureSubscription -SubscriptionName $SubscriptionName   # Every line in the following list starts one VM using the name specified in the argument # You can change the number of lines - use a unique name for every VM - don't reuse names # already used in other VMs already deployed StartVM "test10" StartVM "test11" StartVM "test11" StartVM "test12" StartVM "test13" StartVM "test14" StartVM "test15" StartVM "test16" StartVM "test17" StartVM "test18" StartVM "test19" StartVM "test20"   # Wait for all to complete While (Get-Job -State "Running") {     Get-Job -State "Completed" | Receive-Job     Start-Sleep 1 }   # Display output from all jobs Get-Job | Receive-Job   # Cleanup Remove-Job *   # Displays batch completed echo "Start VM Completed"   StopVMs # Name of subscription $SubscriptionName = "Copy the SubscriptionName property you get from Get-AzureSubscription"   function StopVM( [string]$VmName ) {     Start-Job -ArgumentList $VmName {         param($VmName)         Stop-AzureVM -Name $VmName -ServiceName $VmName -Verbose -Force     } }   # Select the subscription - this line is fundamental if you have access to multiple subscription # You might remove this line if you have only one subscription Select-AzureSubscription -SubscriptionName $SubscriptionName   # Every line in the following list stops one VM using the name specified in the argument # You can change the number of lines - use a unique name for every VM - don't reuse names # already used in other VMs already deployed StopVM "test10" StopVM "test11" StopVM "test12" StopVM "test13" StopVM "test14" StopVM "test15" StopVM "test16" StopVM "test17" StopVM "test18" StopVM "test19" StopVM "test20"   # Wait for all to complete While (Get-Job -State "Running") {     Get-Job -State "Completed" | Receive-Job     Start-Sleep 1 }   # Display output from all jobs Get-Job | Receive-Job   # Cleanup Remove-Job *   # Displays batch completed echo "Stop VM Completed" RemoveOrphanDisks $Image = "Copy the ImageName property you get from Get-AzureVMImage" # You can list your own images using the following command: # Get-AzureVMImage | Where-Object {$_.PublisherName -eq "User" }   # Remove all orphan disks coming from the image specified in $ImageName Get-AzureDisk |     Where-Object {$_.attachedto -eq $null -and $_.SourceImageName -eq $ImageName} |     Remove-AzureDisk -DeleteVHD -Verbose  

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• openGL ES - change the render mode from RENDERMODE_WHEN_DIRTY to RENDERMODE_CONTINUOUSLY on touch

  - by Sid

  i want to change the rendermode from RENDERMODE_WHEN_DIRTY to RENDERMODE_CONTINUOUSLY when i touch the screen. WHAT i Need : Initially the object should be stationary. after touching the screen, it should move automatically. The motion of my object is a projectile motion ans it is working fine. what i get : Force close and a NULL pointer exception. My code : public class BallThrowGLSurfaceView extends GLSurfaceView{ MyRender _renderObj; Context context; GLSurfaceView glView; public BallThrowGLSurfaceView(Context context) { super(context); // TODO Auto-generated constructor stub _renderObj = new MyRender(context); this.setRenderer(_renderObj); this.setRenderMode(RENDERMODE_WHEN_DIRTY); this.requestFocus(); this.setFocusableInTouchMode(true); glView = new GLSurfaceView(context.getApplicationContext()); } @Override public boolean onTouchEvent(MotionEvent event) { // TODO Auto-generated method stub if (event != null) { if (event.getAction() == MotionEvent.ACTION_DOWN) { if (_renderObj != null) { Log.i("renderObj", _renderObj + "lll"); // Ensure we call switchMode() on the OpenGL thread. // queueEvent() is a method of GLSurfaceView that will do this for us. queueEvent(new Runnable() { public void run() { glView.setRenderMode(RENDERMODE_CONTINUOUSLY); } }); return true; } } } return super.onTouchEvent(event); } } PS : i know that i am making some silly mistakes in this, but cannot figure out what it really is.

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• Podcast: The Invisible UI : Natural User Interfaces with Josh Blake

  - by craigshoemaker

  Josh Blake of Infostrat joins Pixel8 to discuss NUI development in .NET. Josh is the author of the upcoming book Multitouch on Windows from Manning. Reaching far beyond theory and the niche market of Microsoft Surface, NUI development is now possible with Silverlight and WPF development on Windows 7 and Windows 7 Mobile devices. Subscribe to the podcast! The Natural User Interface (NUI) was a prominent force at MIX10. What is NUI? Wikipedia defines it as: Natural user interface, or NUI, is the common parlance used by designers and developers of computer interfaces to refer to a user interface that is effectively invisible, or becomes invisible with successive learned interactions, to its users. The word natural is used because most computer interfaces use artificial control devices whose operation has to be learned. A NUI relies on a user being able to carry out relatively natural motions, movements or gestures that they quickly discover control the computer application or manipulate the on-screen content. The most descriptive identifier of a NUI is the lack of a physical keyboard and/or mouse. In our interview Josh demystifies what NUI is, makes a distinction between gestures and manipulations, and talks about what is possible today for NUI development. For more from Josh make sure to check out his book: and watch his MIX Presentation: Developing Natural User Interfaces with Microsoft Silverlight and WPF 4 Touch Resources Mentioned in the Show Check out the following videos that show the roots and future of NUI development: Jeff Han's Multi-Touch TED Presentation Microsoft Surface Project Natal MIX10 Day 2 Keynote A few times during our talk Bill Buxton’s work is mentioned. To see his segment of the MIX10 day 2 keynote, click below:

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• Cant install AMD Catalyst Radeon 12.10 drivers on Ubuntu 12.10 [closed]

  - by Rey Mestidio

  Possible Duplicate: What is the correct way to install ATI Catalyst Video Drivers? I am trying to install the latest AMD Catalyst Radeon 12.10 drivers on Ubuntu 12.10. When I get to the ready to install screen I get an error message. This is the message from the install log file. I'm not sure what to do. Thanks very much for your help in advance! **Supported adapter detected. Check if system has the tools required for installation. fglrx installation requires that the system have kernel headers. /lib/modules/3.5.0-17-generic/build/include/linux/version.h cannot be found on this system. One or more tools required for installation cannot be found on the system. Install the required tools before installing the fglrx driver. Optionally, run the installer with --force option to install without the tools. Forcing install will disable AMD hardware acceleration and may make your system unstable. Not recommended.**

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• System can't sleep, can't shutdown (might be networking related)

  - by Kevin Q

  I speculate it's networking related since I could only shut down my system if I do /etc/init.d/networking stop first. If I tried to put the system to sleep, it disconnect the network then reconnect it automatically, never goes to sleep. I uninstalled the network manager, then /etc/init.d/networking stop will not help shutdown the system anymore. When I boot into the OS, there were some warning about Unknown job:S20acpid,S20network-interface, S20network-manager . I got some advices to do update-rc.d -f to remove all those script, which I am not certain if it's right thing to do. The messages are gone but the problem remains. When I tried to restart, I used to get this message It doesn't seem to be the modem manager since I later removed it. Once upon a time, the fronze shutting down/restarting can be restarted when I presses Ctrl+Alt+Delete, and it says something like networking is stopped externally. If I log in single user mode, and shutdown or reboot, it show this screen I also tried GRUB_CMDLINE_LINUX_DEFAULT = "acpi=force" This is a Ubuntu 12.04 running on Thinkpad T520, not new installation, no such problems occurred before.

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• Access Insurance Company Wins 2010 Technology Innovation Award at IASA

  - by [email protected]

  Helen Pitts, senior product marketing manager for Oracle Insurance, is blogging from the 2010 IASA Annual Conference and Business Show this week. For the second time in two weeks an Oracle Insurance customer has earned recognition at an insurance industry event for its innovative use of technology to transform their business. Access Insurance Company received the 2010 Technology Innovation Award during the 2010 IASA Annual Conference and Business Show this week in Grapevine, Texas. The company earned the recognition for its "Instant Access" application, which executes all the business rules and processes needed to provide a quote, bind, and issue a policy. CIO Andy Dunn and Tim Reynolds stopped by the Oracle Insurance Booth at IASA to visit with the team, show their award, and share how the platform has provided a strategic advantage to the company and helped it increase revenue by penetrating new markets, increasing market share and improving customer retention. Since implementing Instant Access in 2009 - a platform that leverages both Oracle Insurance Insbridge Rating and Underwriting and Oracle Documaker - the carrier has: Increased policies in force by 22%, from 140,185 to more than 270,000 Grown market share by 4.6% Increased 2009 revenue by 26.5% Increased ratio of policyholders per CSR by 30% Increased its appointed independent producers by 43 percent Now that's true innovation! You can learn more about the company's formula for success by reading Access Insurance Holdings CEO and president Michael McMenamin's interview with Insurance & Technology, Data Mastery Drives Access Insurance's 'Instant Access' Business Technology Platform. Congratulations to Michael, Andy, Tim and the entire team at Access Insurance on this well deserved honor - and for your role as a technology leader for the industry. Helen Pitts is senior product marketing manager for Oracle Insurance.

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• Simulating the effects of wind

  - by jernej

  I am developing a mobile game for Android. It is a 3D jumping game (like ski jump) where wind plays a important role so i need to simulate it. How could I achieve this? The game uses libgdx for rendering and a port of Bullet physics engine for physics. To simulate the jump I have 2 spheres which are placed at the start and at the end of the player and gravity is applied to them (they role down the hill and jump at the end). I use them to calculate the angle and the position of the player. If a button is pressed some extra y speed is applied to them (to simulate the jump before the end of the jumping ramp). But now I have to add wind to it. How is this usually done? Which collision box/method should I use? The way I understand it I only have to apply some force with direction to the player while in mid air. How can I do this in Bullet?

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• Desktop Fun: Sci-Fi Icons Packs Series 2

  - by Asian Angel

  If you loved our first sci-fi icon packs collection then get ready for more icon goodness with the selection in our second sci-fi series. Sneak Preview As always we have an example desktop full of icon goodness to share with you. Here you can see a Star Trek themed desktop using the “Borg-green” set shown below. Note: Wallpaper can be found here. Our new desktop icons up close… Borg-green *.png format only Download Trek Insignia *.ico format only Download Star Trek Elite Force X *.ico format only Download Starships X *.ico format only Download If I Were A Thief In The 24th Century 1.0 *.ico format only Download Star Wars: Attack of the Clones *.ico format only Download BSG: Frakking Toasters *.ico format only Download Doctor Who *.ico format only Download TRON *.ico format only Download Alien vs Predator Icons *.ico and .png format Download 2001: A Space Odyssey 1.0 *.ico format only Download To the Moon *.ico format only, also has bonus set of wallpapers included! This is what the bonus wallpaper looks like…it comes in the following sizes: 1024*768, 1280*854, 1280*1024, 1440*900, 1600*1200, & 1920*1200. Download Space Icons *.ico and .png format Download Matrix Documentations *.ico format only Download Matrix Rebooted *.ico format only Download If you loved this collection of sci-fi icons then head on over to see our first sci-fi series here. Also, be certain to visit our new Desktop Fun section for more customization goodness! Similar Articles Productive Geek Tips Desktop Customization: Sci-Fi Icon PacksRestore Missing Desktop Icons in Windows 7 or VistaDesktop Fun: Adventure Icon PacksDesktop Fun: Star Trek WallpapersCreate a Keyboard Shortcut to Access Hidden Desktop Icons and Files TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Microsoft’s “How Do I ?” Videos Home Networks – How do they look like & the problems they cause Check Your IMAP Mail Offline In Thunderbird Follow Finder Finds You Twitter Users To Follow Combine MP3 Files Easily QuicklyCode Provides Cheatsheets & Other Programming Stuff

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• AutoScroll panel working intermittently.

  - by Edward Boyle

  I spent hours last week trying to get AutoScroll to function properly on a derived/inherited panel control I have been writing. I found no answers on my own so I posted to several forums and move onto other code while I wait for a reply. Then out of nowhere, it started working properly. Now, Today (about a week later) I notice it is no longer working again!  I go back to those old posts with hopes I will find an answer – No such luck. I Google for about two hours reading everything I come across. I was just about to write a new custom control from the ground up, perhaps use a little unmanaged code to force things to function properly. All I knew was “options in front of me = dealys”.  Just before I gave up, my head in my hands,  Jordan Sirwin’s appropriately titled blog post: “C#: Windows Panel AutoScroll Bug / Intended Suckyness” saves the day! In order for scroll bars to display, there must be at least one control in the Panel with AutoSize set to true. This is absurd… I’m not sure if this is a bug or intended, but it’s stupid. –I feel your pain. How many others have spent hours on this, or worse,  just plain given up? I want those hours back Damnit!

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• Boot failure on installation from a burned iso image

  - by jdamae

  I'm encountering boot failure while trying to install a Linux distro from a CD. I'm using an older PC; here are its specs: HP Pavilion a255c 2.66GHz CPU, 512MB RAM with a BIOS revision of 6/30/2003 I reclaimed an older drive (Seagate ST340810A) that seems to be working, as it's recognized in the BIOS (auto-detected). So this is not the original HDD, but a replacement. I downloaded a mini.iso of Ubuntu 10.10 that I want to install, and burned the image to a CD for install. My boot sequence is: First Boot Device [CDROM]. I disabled devices 2-4 so I can just force it to read first from the CD-ROM. This old PC also has a separate CD writer which is a Sec.Slave. The Sec.Master is the Toshiba DVD/ROM DSM-171 drive where I placed the burned Linux CD. With these settings I cannot get it to boot. I get the message "DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER" when I start the pc with the cd (burned iso image). Would I be able to boot off a usb flash drive? Would that work?

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• Set umask, set permissions, and set ACL, but SAMBA isn't using those?

  - by Kris Anderson

  I'm running on Ubuntu Server 12.04. I have a folder called Music and I want the default folder permissions to be 775 and the default file to then be 664. I set the default permissions on the Music folder to be 775. I configured ACL to use these default permissions as well: file: Music owner: kris group: kris flags: ss- user::rwx group::rwx other::r-x default:user::rwx default:group::rwx default:other::r-x I also changed the default umask for my user account, kris, to 002 in .profile. Shouldn't and new file/folder now use those permissions when writing to the Samba share? ACL should work with Samba from what I can gather. Currently, if I write to that folder using my mac, folders are getting 755 and files 644. I have another app on my mac called GoodSync which which is able to sync a local directory on my mac to a network samba share, but those permissions are even worse. files are being written as 700 using that program. So it looks like Samba is allowing the host/program to determine the folder/file permissions. What changes do I need to make to force the permissions I want regardless of what the host tries to write on the server?

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• Why does my PowerBook display “Fixing recursive fault but reboot is needed!” and stop booting?

  - by Blacklight Shining

  I have an old PowerBook G4 that worked (more or less) fine with a previous installation of Ubuntu Desktop 12.04. A few days ago I decided to install Ubuntu Server instead, and got a copy of Ubuntu Server 12.10. The installation seemed to complete successfully, but now, whenever I try to boot the system, it simply halts at some point after I unlock the hard disk. There is a lot of text on the screen (which is normal for me during a boot, except now it's mostly errors and debug information), the last of which is this: [ 26.338228] Fixing recursive fault but reboot is needed! Pressing control command power to force a reboot yields exactly the same results. A search for the error message turned up many temporary solutions involving kernel parameters, but none of them have worked for me. I don't think I can remove the default set of parameters (which I think is quiet splash), but I can pass additional parameters on boot. I've tried booting on AC and battery power, as well as using these combinations of kernel parameters while on battery power: acpi=enable pci=noacpi pci=assign-busse acpi=ht acpi=off nomodeset nomodeset acpi=off Why am I getting this error and how can I fix it?

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• dpkg error : old pre-removal script returned error exit status 102

  - by Siva Prasad Varma

  I am unable to install or remove a package on my Ubuntu 10.04 due to the following error. $ sudo apt-get autoremove Password: Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: busybox 0 upgraded, 0 newly installed, 1 to remove and 9 not upgraded. 1 not fully installed or removed. Need to get 0B/212kB of archives. After this operation, 627kB disk space will be freed. Do you want to continue [Y/n]? y Selecting previously deselected package nscd. (Reading database ... 235651 files and directories currently installed.) Preparing to replace nscd 2.11.1-0ubuntu7.8 (using .../nscd_2.11.1-0ubuntu7.8_amd64.deb) ... invoke-rc.d: not a symlink: /etc/rc2.d/S76nscd dpkg: warning: old pre-removal script returned error exit status 102 dpkg - trying script from the new package instead ... invoke-rc.d: not a symlink: /etc/rc2.d/S76nscd dpkg: error processing /var/cache/apt/archives/nscd_2.11.1-0ubuntu7.8_amd64.deb (--unpack): subprocess new pre-removal script returned error exit status 102 update-rc.d: warning: /etc/rc2.d/S76nscd is not a symbolic link invoke-rc.d: not a symlink: /etc/rc2.d/S76nscd dpkg: error while cleaning up: subprocess installed post-installation script returned error exit status 102 Errors were encountered while processing: /var/cache/apt/archives/nscd_2.11.1-0ubuntu7.8_amd64.deb E: Sub-process /usr/bin/dpkg returned an error code (1) What should I do to resolve this error. I have tried sudo dpkg --remove --force-remove-reinstreq nscd but it did not work.

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• News about Oracle Documaker Enterprise Edition

  - by Susanne Hale

  Updates come from the Documaker front on two counts: Oracle Documaker Awarded XCelent Award for Best Functionality Celent has published a NEW report entitled Document Automation Solution Vendors for Insurers 2011. In the evaluation, Oracle received the XCelent award for Functionality, which recognizes solutions as the leader in this category of the evaluation. According to Celent, “Insurers need to address issues related to the creation and handling of all sorts of documents. Key issues in document creation are complexity and volume. Today, most document automation vendors provide an array of features to cope with the complexity and volume of documents insurers need to generate.” The report ranks ten solution providers on Technology, Functionality, Market Penetration, and Services. Each profile provides detailed information about the vendor and its document automation system, the professional services and support staff it offers, product features, insurance customers and reference feedback, its technology, implementation process, and pricing.  A summary of the report is available at Celent’s web site. Documaker User Group in Wisconsin Holds First Meeting Oracle Documaker users in Wisconsin made the first Documaker User Group meeting a great success, with representation from eight companies. On April 19, over 25 attendees got together to share information, best practices, experiences and concepts related to Documaker and enterprise document automation; they were also able to share feedback with Documaker product management. One insurer shared how they publish and deliver documents to both internal and external customers as quickly and cost effectively as possible, since providing point of sale documents to the sales force in real time is crucial to obtaining and maintaining the book of business. They outlined best practices that ensure consistent development and testing strategies processes are in place to maximize performance and reliability. And, they gave an overview of the supporting applications they developed to monitor and improve performance as well as monitor and track each transaction. Wisconsin User Group meeting photos are posted on the Oracle Insurance Facebook page http://www.facebook.com/OracleInsurance. The Wisconsin User Group will meet again on October 26. If you and other Documaker customers in your area are interested in setting up a user group in your area, please contact Susanne Hale ([email protected]), (703) 927-0863.

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