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  • Silverlight Cream for April 07, 2010 -- #833

    - by Dave Campbell
    In this Issue: Alan Mendelevich, Siyamand Ayubi, Rudi Grobler(-2-), Josh Smith, VinitYadav, and Dave Campbell. Shoutouts: Jordan Knight has a demo up of a project he did for DigiGirlz: DigiGirlz, Deep Zoom and Azure, hopefully we'll get source later :) Jeremy Likness has a must-read post on his Ten Reasons to use the Managed Extensibility Framework I put this on another post earlier, but if you want some desktop bling for WP7, Ozymandias has some: I Love Windows Phone Wallpaper If you're not going to be in 'Vegas next week, Tim Heuer reminds us there's an alternative: Watch the Silverlight 4 Launch event and LIVE QA with ScottGu and others From SilverlightCream.com: Ghost Lines in Silverlight Alan Mendelevich reports an issue when drawing lines with odd coordinate values. He originated it in Silverlight 3, but it is there in SL4RC as well... check it out and leave him a comment. A Framework to Animate WPF and Silverlight Pages Similar to the PowerPoint Slides Siyamand Ayubi has an interesting post up on animating WPF or Silverlight pages to make them progress in the manner of a PPT slideshow. And it can also make phone calls… Rudi Grobler has a list of 'tasks' you can do with WP7 such as PhoneCallTask or EmailComposeTask ... looks like this should be plasticized :) Using the GPS, Accelerometer & Vibration Controller Rudi Grobler is also investigating how to use the GPS, Accelerometer, and Vibration in WP7 with a bunch of external links to back it up. Assembly-level initialization at design time Josh Smith has a solution to the problem of initializing design-time data in Blend (did you know that was an issue?) ... the solution is great and so is the running commentary between Josh and Karl Shifflett in the comments! ySurf : A Yahoo Messenger Clone built in Silverlight VinitYadav built a Yahoo Messenger app in Silverlight and has detailed out all the ugly bits for us on the post, plus made everything available. Your First Silverlight Application Dave Campbell's first post at DZone cracking open a beginner's series on Silverlight. If you're expecting something heavy-duty, skip this. If you're wanting to learn Silverlight and haven't jumped in yet, give it a try. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • Internet Protocol Suite: Transition Control Protocol (TCP) vs. User Datagram Protocol (UDP)

    How do we communicate over the Internet?  How is data transferred from one machine to another? These types of act ivies can only be done by using one of two Internet protocols currently. The collection of Internet Protocol consists of the Transition Control Protocol (TCP) and the User Datagram Protocol (UDP).  Both protocols are used to send data between two network end points, however they both have very distinct ways of transporting data from one endpoint to another. If transmission speed and reliability is the primary concern when trying to transfer data between two network endpoints then TCP is the proper choice. When a device attempts to send data to another endpoint using TCP it creates a direct connection between both devices until the transmission has completed. The direct connection between both devices ensures the reliability of the transmission due to the fact that no intermediate devices are needed to transfer the data. Due to the fact that both devices have to continuously poll the connection until transmission has completed increases the resources needed to perform the transmission. An example of this type of direct communication can be seen when a teacher tells a students to do their homework. The teacher is talking directly to the students in order to communicate that the homework needs to be done.  Students can then ask questions about the assignment to ensure that they have received the proper instructions for the assignment. UDP is a less resource intensive approach to sending data between to network endpoints. When a device uses UDP to send data across a network, the data is broken up and repackaged with the destination address. The sending device then releases the data packages to the network, but cannot ensure when or if the receiving device will actually get the data.  The sending device depends on other devices on the network to forward the data packages to the destination devices in order to complete the transmission. As you can tell this type of transmission is less resource intensive because not connection polling is needed,  but should not be used for transmitting data with speed or reliability requirements. This is due to the fact that the sending device can not ensure that the transmission is received.  An example of this type of communication can be seen when a teacher tells a student that they would like to speak with their parents. The teacher is relying on the student to complete the transmission to the parents, and the teacher has no guarantee that the student will actually inform the parents about the request. Both TCP and UPD are invaluable when attempting to send data across a network, but depending on the situation one protocol may be better than the other. Before deciding on which protocol to use an evaluation for transmission speed, reliability, latency, and overhead must be completed in order to define the best protocol for the situation.  

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  • Microsoft UX Kit

    - by Josh Holmes
    Have you ever wondered what was possible with Silverlight, WPF or any of Microsoft’s User Experience (UX) technologies? Well, Christian Thilmany has answered that question in the form of the Microsoft UX Kit. Read more at Microsoft UX Kit | Josh Holmes

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  • links for 2010-12-16

    - by Bob Rhubart
    Oracle Solaris 11 Express: Network Virtualization and Resource Control | Oracle Clinic XiangBingLiu's detailed overview of Oracle Solaris 11 Express features, including Crossbow. (tags: oracle solaris virtualization crossbow) A New Threat To Web Applications: Connection String Parameter Pollution (CSPP) (The Oracle Global Product Security Blog) "CSPP, if carried out successfully, can be used to steal user identities and hijack web credentials. CSPP is a high risk attack because of the relative ease with which it can be carried out (low access complexity) and the potential results it can have (high impact)." -- Shaomin Wang (tags: oracle otn security cspp)

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  • Oracle's Cloud Computing Events

    - by Peeyush Tugnawat
    Here is a useful link to Oracle full day events on Cloud Computing worldwide http://www.oracle.com/events/cloudcomputing/index.html   Other Oracle Cloud Computing Resources Oracle's Cloud Computing Products and Services Oracle's Cloud Computing Resource Center   Others My Previous Post about Cloud Computing

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  • Daily tech links for .net and related technologies - Apr 15-18, 2010

    - by SanjeevAgarwal
    Daily tech links for .net and related technologies - Apr 15-18, 2010 Web Development Guarding against CSRF Attacks in ASP.NET MVC2 - Scott Kirkland Same Markup: Writing Cross-Browser Code - Tony Ross Introducing Machine.Specifications.Mvc - James Broome ASP.NET 4 - Breaking Changes and Stuff to be Aware of - Scott Hanselman JSON Hijacking in ASP.NET MVC 2 - Matt Easy And Safe Model Binding In ASP.NET MVC - Justin Etheredge MVC Portable Areas Enhancement - Embedded Resource Controller - Steve Michelotti...(read more)

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  • Silverlight Cream for April 04, 2010 -- #830

    - by Dave Campbell
    In this Issue: Michael Washington, Hassan, David Anson, Jeff Wilcox, UK Application Development Consulting, Davide Zordan, Victor Gaudioso, Anoop Madhusudanan, Phil Middlemiss, and Laurent Bugnion. Shoutouts: Josh Smith has a good-read post up: Design-time data is still data Shawn Hargreaves reported his MIX demo released From SilverlightCream.com: Silverlight MVVM: Enabling Design-Time Data in Expression Blend When Using Web Services Michael Washington has a tutorial up on MVVM and using a web service to get design-time data that works in Blend also... lots of information and screenshots. WP7 Transition Animation Hassan has a new WP7 tutorial up that demonstrates playing media and adding transition animation between pages. Tip: For a truly read-only custom DependencyProperty in Silverlight, use a read-only CLR property instead David Anson's latest tip is in response to comments on his previous post and details one by Dr. WPF who points out that a read-only DependencyProperty doesn't actually need to be a DependencyProperty as long as the class implements INotifyPropertyChanged. Template parts and custom controls (quick tip) Jeff Wilcox has posted a set of tips and recommendations to use when developing control development in Silverlight ... this is a post to bookmark. Flexible Data Template Support in Silverlight The UK Application Development Consulting details a 'problem' in Silverlight that doesn't exist in WPF and that is data templates that vary by type... and discusses a way around it. Multi-Touch enabling Silverlight Simon using Blend behaviors and the Surface sample for Silverlight Davide Zordan brought Multi-Touch to the Silverlight Simon game on CodePlex using Blend Behaviors. New Video Tutorial: How to Use a Behavior to Fire Methods from Objects in Styles Victor Gaudioso has a video tutorial up responding to a question from a developer. He demonstrates development of a Behavior that can be attached to objects in or out of Styles that allows you to specify what Method they need to fire. Creating a Silverlight Client for @shanselman ’s Nerd Dinner, using oData and Bing Maps Anoop Madhusudanan took Scott Hanselman's post on an OData API for StackOverflow, and has created a Silverlight client for Nerd Dinner, including BingMaps. A Chrome and Glass Theme - Part 2 Phil Middlemiss has the next part of his Chrome and Glass Theme up. In this one he creates a very nice chrome-look button with visual state changes. MVVM Light Toolkit V3 SP1 for Windows Phone 7 Laurent Bugnion has released a new version of MVVM Light for WP7. Included is an installation manual and information about what was changed. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • Creating a bare bone web-browser: After the html parser, javascript parser, etc have done their work, how do I display the content of the webpage?

    - by aste123
    This is a personal project to learn computer programming. I took a look at this: https://www.udacity.com/course/viewer#!/c-cs262 The following is the approach taken in it: Abstract Syntax Tree is created. But javascript is still not completely broken down in order not to confuse with the html tags. Then the javascript interpreter is called on it. Javascript interpreter stores the text from the write() and document.write() to be used later. Then a graphics library in Python is called which will convert everything to a pdf file and then we convert it into png or jpeg and then display it. My Question: I want to display the actual text in a window (which I will design later) like firefox or chrome does instead of image files so that the data can be selected, copied, etc by the user of the browser. How do I accomplish this? In other words, what are the other elements of a bare bone web browser that I am missing? I would prefer to implement most of the stuff in C++ although if things seem too complicated I might go with Python to save time and create a prototype and later creating another bare bone browser in C++ and add more features. This is a project to learn more. I do realize we already have lots of reliable browsers like firefox, etc. The way I feel it is done: I think after all the broken down contents have been created by the parsers and interpreters, I will need to access them individually from within the window's code (like qt) and then decide upon a good way to display them. I am not sure if it is the way this should be done. Additions after useful comment by Kilian Foth: I found this page: http://friendlybit.com/css/rendering-a-web-page-step-by-step/ 14. A DOM tree is built out of the broken HTML 15. New requests are made to the server for each new resource that is found in the HTML source (typically images, style sheets, and JavaScript files). Go back to step 3 and repeat for each resource. 16. Stylesheets are parsed, and the rendering information in each gets attached to the matching node in the DOM tree 17. Javascript is parsed and executed, and DOM nodes are moved and style information is updated accordingly 18. The browser renders the page on the screen according to the DOM tree and the style information for each node 19. You see the page on the screen I need help with step 18. How do I do that? How much work do Webkit and Gecko do? I want to use a readymade layout renderer for step number 18 and not for anything that comes before that.

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  • Multi-Threaded Application vs. Single Threaded Application

    Why would we use a multi threaded application vs. a single threaded application? First we must define multithreading. Multithreading is a feature of an operating system that allows programs to run subcomponents or threads in parallel. Typically most applications only need to use one thread because they do not perform time consuming tasks. The use of multiple threads allows an application to distribute long running tasks so that they can be executed in parallel. This gives the user the perceived appearance that the application is working faster due to the fact that while one thread is waiting on an IO process the remaining tasks can make use of the available CPU. The allows working threads to execute in tandem so that they can be competed sooner. Multithreading Benefits Improved responsiveness — Users usually report improved responsiveness compared to single thread applications. Faster applications — Multiple threads can lead to improved application performance. Prioritization — Threads can be assigned a priority which would allow higher priority tasks to take precedence over lower priority tasks. Single Threading Benefits Programming and debugging —These activities are easier compared to multithreaded applications due to the reduced complexity Less Overhead — Threads add overhead to an application When developing multi-threaded applications, the following must be considered. Deadlocks occur when two threads hold a monitor that the other one requires. In essence each task is blocking the other and both tasks are waiting for the other monitor to be released. This forces an application to hang or deadlock. Resource allocation is used to prevent deadlocks because the system determines if approving the resource request will render the system in an unsafe state. An unsafe state could result in a deadlock. The system only approves requests that will lead to safe states. Thread Synchronization is used when multiple threads use the same instance of an object. The threads accessing the object can then be locked and then synchronized so that each task can interact with the static object on at a time.

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  • CodePlex Daily Summary for Sunday, May 30, 2010

    CodePlex Daily Summary for Sunday, May 30, 2010New ProjectsAviva Solutions C# Coding Guidelines: A set of C# coding guidelines, coding standards, layout rules, FxCop rulesets and (upcoming) custom FxCop and StyleCop rules for improving the over...BKWork: private project.classbook: du an trong vong 10 ngay. Nhom (Do Bao Linh, Phan Thanh Tai, Nguyen Dang Loc)Du an - 01: Du an mon thay LuongEndNote助手: EndNote Helper is a assistant tool for EndNote, which make your task of reference management more convinent. EndNote 助手是一个用于辅助EndNote进行文献管理的小工具,它可...Evoucher: Simple Evoucher Sales SystemFiddler Delayed Responses Extension: A fiddler extension that help developers delay the delivery of HTML Responses to applications. Some delay user stories: - Delivery of css to HTML ...Generic Entity Model 2: GEM2 is lightweight entity framework for building custom business solutions. It enables rapid approach to entity logic design, while offering out o...GY06: 这个是长大工院于2009年发起的项目,因为种种原因没有完成。JoshDOS: JoshDOS is a command line operating system kernel based off COSMOS. It can be booted from actual hardware and built in Visual Studio using .NET la...PhysicsFMUDeluxe.NET: Este projeto é desenvolvido com o intuíto de treinar o desenvolvimento de aplicações em C#. Ele contém ferramentas para cálculos de física e matemá...Reactor Services Platform: Reactor is a service composition and deployment grid that streamlines developing, composing, deploying and managing services. Reactor Services are ...SerafinApartment: Simple MVC 2 application for apartment rental. It is multingual booking system, that allows users to register, book and subscribe for notifications...Silverlight Audio Effect Box: This is a C# Silverlight 4 sample application which process audio sample in near real time. It allows to capture the default audio input device and...Smart Voice: Smart Voice let's you control Skype using your voice. It allows you to write messages, issue phone calls, etc. This application was developed think...WebDotNet - The minimalist web framework inspired by web.py: WebDotNet is an experiment in web frameworks. Inspired by the python web framework, web.py, it is an exercise in extreme minimalism in a framework...New ReleasesAcies: Acies - Alpha Build 0.0.7: Alpha release. Requires Microsoft XNA Framework Redistributable 3.1 (http://www.microsoft.com/downloads/details.aspx?FamilyID=53867a2a-e249-4560-...AdventureWorksLT 2008 Sample Database Script: AdventureWorksLT 2008 R2 DB Script: This script is based on latest download from the Sample database for SQL Server 2008 R2. The original download from the sample is approx 84 MB and ...ASP.NET Wiki Control: Release 1.3.1: - Removed ASP.NET Session dependency. BreadCrumbs will now work with sessions disabled. Can now also share a URL and have the breadcrumb appropriat...Aviva Solutions C# Coding Guidelines: Visual Studio 2010 Rule Sets: Rule Sets targetting different styles of projects.bvcms - Bellevue Church Management System: Source: This source was used to build the latest {church}.bvcms.comCC.Yacht: CC.Yacht 1.0.10.529: This is the initial release of CC.Yacht. Marked as beta since I don't have any testing/feedback beyond that of myself and my wife.Community Forums NNTP bridge: Community Forums NNTP Bridge V14: Release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open source NNTP bridge. This release has add...Community Forums NNTP bridge: Community Forums NNTP Bridge V15: Release of the Community Forums NNTP Bridge to access the social and anwsers MS forums with a single, open source NNTP bridge. This release has add...Coronasoft Cryostasis scripting engine: CCSE v0.0.1.0 BETA: This is the 0.0.1.0 Beta Release. If you find any bugs Post them as a comment or in the Discussions tabEndNote助手: EndNote助手2.1.0..0: 去除了注册验证机制。Fiddler Delayed Responses Extension: v0.1: Version 0.1 of Fiddler Delayed Responses Extension. See ChangeLog for more information.Generic Entity Model 2: GEM2 build 52510: This is first BETA release of GEM2! Following implementation is still missing from initial plan: Detailed documentation MySQL operational databa...JoshDOS: JoshDOS Souce: This is the souce for the JoshDOS 1.0 OS kernel. You need the COSMOS user kit to use.JoshDOS: Shell Version 1.0: Whats in this download *JoshDOS user kit *JoshDOS VStudio starter kit *JoshDOS documentation Note: You will need the COSMOS user kit to start deve...miniTodo: mini Todo version 0.3: Todo完了時に音が出なかったのを修正Model Virtual Casting - ASPItalia.com: Model Virtual Casting 0.2: Model Virtual Casting 0.2Questa seconda release di ModelVC è corrispondente a quella mostrata in occasione della Real Code Conference 4.0 tenutasi ...PhysicsFMUDeluxe.NET: PhysicsFMUDeluxe.NET - Setup: Primeira versão pública do PhysicsFMUDeluxe.NETSilverlight Audio Effect Box: Echo Box 1.0: First realease - zip contains : web page + xap file :Smart Voice: Smart Voice 0.1: Here is the first alpha release of Smart Voice. Please remember this was done for a curricular unit project at my university and i understand that ...StyleCop Contrib: Custom rules v0.2: This release of the custom rules target StyleCop 4.3.3. Included rules are: Spacing Rules - NoTrailingWhiteSpace - IndentUsingTabs Ordering Rules ...System.ComponentModel.DataAnnotations Contrib: 0.2.46280.0: Built with Visual Studio 2010/.Net 4.0. Compiled from source code changeset 46280.VB Styler: VB Styler Suite V 1.3.0.0: This is the newest version of the VB Styler. Here are the new features. New Imaging ColorPicker A template for getting colors via sliders ColorR...VCC: Latest build, v2.1.30529.0: Automatic drop of latest buildWPF Application Framework (WAF): WPF Application Framework (WAF) 1.0.0.90 RC: Version: 1.0.0.90 (Release Candidate): This release contains the source code of the WPF Application Framework (WAF) and the sample applications. ...XNA Collision Detection: XNA Collision Detection Sample Program: I have coded a compact program which shows the collision detection working, and provides a camera class for rendering and moving the "player." Agai...Most Popular ProjectsRawrWBFS ManagerAJAX Control ToolkitMicrosoft SQL Server Product Samples: DatabaseSilverlight ToolkitWindows Presentation Foundation (WPF)patterns & practices – Enterprise LibraryMicrosoft SQL Server Community & SamplesPHPExcelASP.NETMost Active ProjectsAStar.netpatterns & practices – Enterprise LibraryCommunity Forums NNTP bridgeBlogEngine.NETGMap.NET - Great Maps for Windows Forms & PresentationIonics Isapi Rewrite FilterRawrCustomer Portal Accelerator for Microsoft Dynamics CRMFacebook Developer ToolkitPAP

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  • Service Broker Solutions - Don't Forget the Basics

    - by AllenMWhite
    After finally getting a Service Broker solution implemented successfully, I'm really impressed with the technology, and frustrated how difficult it can be to implement and get it really working as expected. First, understand the technology. There are some great resources out there to help you get started. The first place to go is Klaus Aschenbrenner's book, the one that Greg Low reviewed this past week. It's an amazing resource and played a large part in my success. (I bought it for my Kindle, and...(read more)

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  • dpkg stuck downloading font files

    - by Bob Bowles
    I have been reinstalling Ubuntu 12.04. The install from USB works fine, and I could update everything OK, but when I got to re-installing my application software I hit a snag. One of the packages I tried to re-install was ttf-mscorefonts-installer. dpkg stalled during this setup, downloading a font file (it had tried to download it all night). I stopped dpkg, and attempted to re-start downloading something else, but it would not let me. The commands I typed are as follows: bob@bobStudio:~$ sudo rm /var/lib/dpkg/lock This unlocks dpkg, but if I try to do something I get the following message (eg): bob@bobStudio:~$ sudo apt-get install synaptic E: dpgk was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem So, I did just that: bob@bobStudio:~$ sudo dpkg --configure -a whereupon it started the previously failed download all over again. I went round the loop here a few times and each time after the configure command it re-started the failing download, but then I got this: bob@bobStudio:~$ sudo dpkg --configure -a Setting up update-notifier-common (0.119ubuntu8.4) ... ttf-mscorefonts-installer: downloading http://downloads.sourceforge.net/corefonts/andale32.exe Traceback (most recent call last): File "/usr/lib/update-notifier/package-data-downloader", line 234, in process_download_requests dest_file = urllib.urlretrieve(files[i])[0] File "/usr/lib/python2.7/urllib.py", line 93, in urlretrieve return _urlopener.retrieve(url, filename, reporthook, data) File "/usr/lib/python2.7/urllib.py", line 239, in retrieve fp = self.open(url, data) File "/usr/lib/python2.7/urllib.py", line 207, in open return getattr(self, name)(url) File "/usr/lib/python2.7/urllib.py", line 344, in open_http h.endheaders(data) File "/usr/lib/python2.7/httplib.py", line 954, in endheaders self._send_output(message_body) File "/usr/lib/python2.7/httplib.py", line 814, in _send_output self.send(msg) File "/usr/lib/python2.7/httplib.py", line 776, in send self.connect() File "/usr/lib/python2.7/httplib.py", line 757, in connect self.timeout, self.source_address) File "/usr/lib/python2.7/socket.py", line 553, in create_connection for res in getaddrinfo(host, port, 0, SOCK_STREAM): IOError: [Errno socket error] [Errno -2] Name or service not known Setting up ttf-mscorefonts-installer (3.4ubuntu3) ... bob@bobStudio:~$ sudo apt-get update E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/ bob@bobStudio:~$ sudo rm /var/lib/dpkg/lock bob@bobStudio:~$ sudo apt-get update E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily unavailable) E: Unable to lock directory /var/lib/apt/lists/ The good news is that, once I sorted out the file locks, this seems to have permanently aborted the setup of the font package, so at least I can do something else with dpkg. That leaves two questions: 1) How could I have broken the loop without actually crashing out of dpkg? 2) How can I set up the ttf-mscorefonts-installer package in the future? Is this download really broken, or is it 'just' a bad Internet connection?

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  • Ovum report: Oracle Database 12c offers new take on multitenancy

    - by Javier Puerta
    Ovum has published a positive research note on Oracle Database 12c. Ovum concludes that Oracle Multitenant will provide significant productivity and resource savings for Oracle customers considering database consolidation, on- or off-premise. The multitenant features of Oracle Database 12c support not only cloud deployment, but also database consolidation. Oracle has purchased electronic distribution rights to this research note and posted it to Oracle.com. The full research note can be downloaded here.  

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  • SilverlightShow for Jan 31- Feb 06, 2011

    - by Dave Campbell
    Check out the Top Five most popular news at SilverlightShow for Jan 31- Feb 06, 2011. Here's SilverlightShow top 5 news for last week: Free ebook: Silverlight for Windows Phone Deploying Silverlight with WCF Services Localize a Silverlight 4 Application WCF - Silverlight debugging tips Kinect and WPF: Getting the raw and depth image using OpenNI Visit and bookmark SilverlightShow. Stay in the 'Light

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  • Ovum report: Oracle Database 12c offers new take on multitenancy

    - by Javier Puerta
    Ovum has published a positive research note on Oracle Database 12c. Ovum concludes that Oracle Multitenant will provide significant productivity and resource savings for Oracle customers considering database consolidation, on- or off-premise. The multitenant features of Oracle Database 12c support not only cloud deployment, but also database consolidation. Oracle has purchased electronic distribution rights to this research note and posted it to Oracle.com. The full research note can be downloaded here.  

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  • Python PyBluez loses Bluetooth connection after a while

    - by Travis G.
    I am using Python to write a simple serial Bluetooth script that sends information about my computer stats periodically. The receiving device is a Sparkfun BlueSmirf Silver. The problem is that, after the script runs for a few minutes, it stops sending packets to the receiver and fails with the error: (11, 'Resource temporarily unavailable') Noticing that this inevitably happens, I added some code to automatically try to reopen the connection. However, then I get: Could not connect: (16, 'Device or resource busy') Am I doing something wrong with the connection? Do I need to occasionally reopen the socket? I'm not sure how to recover from this type of error. I understand that sometimes the port will be busy and a write operation is deferred to avoid blocking other processes, but I wouldn't expect the connection to fail so regularly. Any thoughts? Here is the script: import psutil import serial import string import time import bluetooth sampleTime = 1 numSamples = 5 lastTemp = 0 TEMP_CHAR = 't' USAGE_CHAR = 'u' SENSOR_NAME = 'TC0D' #gauges = serial.Serial() #gauges.port = '/dev/rfcomm0' #gauges.baudrate = 9600 #gauges.parity = 'N' #gauges.writeTimeout = 0 #gauges.open() filename = '/sys/bus/platform/devices/applesmc.768/temp2_input' def parseSensorsOutputLinux(output): return int(round(float(output) / 1000)) def connect(): while(True): try: gaugeSocket = bluetooth.BluetoothSocket(bluetooth.RFCOMM) gaugeSocket.connect(('00:06:66:42:22:96', 1)) break; except bluetooth.btcommon.BluetoothError as error: print "Could not connect: ", error, "; Retrying in 5s..." time.sleep(5) return gaugeSocket; gaugeSocket = connect() while(1): usage = psutil.cpu_percent(interval=sampleTime) sensorFile = open(filename) temp = parseSensorsOutputLinux(sensorFile.read()) try: #gauges.write(USAGE_CHAR) gaugeSocket.send(USAGE_CHAR) #gauges.write(chr(int(usage))) #write the first byte gaugeSocket.send(chr(int(usage))) #print("Wrote usage: " + str(int(usage))) #gauges.write(TEMP_CHAR) gaugeSocket.send(TEMP_CHAR) #gauges.write(chr(temp)) gaugeSocket.send(chr(temp)) #print("Wrote temp: " + str(temp)) except bluetooth.btcommon.BluetoothError as error: print "Caught BluetoothError: ", error time.sleep(5) gaugeSocket = connect() pass gaugeSocket.close() EDIT: I should add that this code connects fine after I power-cycle the receiver and start the script. However, it fails after the first exception until I restart the receiver. P.S. This is related to my recent question, Why is /dev/rfcomm0 giving PySerial problems?, but that was more about PySerial specifically with rfcomm0. Here I am asking about general rfcomm etiquette.

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  • Mono for Android Book has been Released!!!!!

    - by Wallym
    If I understand things correctly, and I make no guarantees that I do, our Mono for Android book has been RELEASED!  I'm not quite sure what this means, but my guess is that that it has been printed and is being shipped to various book sellers.So, if you have pre-ordered a copy, its now up to Amazon to send it to you.  Its fully out of my control, Wrox, Wiley, as well as everyone but Amazon.If you haven't bought a copy already, why?  Seriously, go order 8-10 copies for the ones you love.  They'll make great romantic gifts for the ones you love.  Just think at the look on the other person's face when you give them a copy of our book. Here's a little about the book:The wait is over! For the millions of .NET/C# developers who have been eagerly awaiting the book that will guide them through the white-hot field of Android application programming, this is the book. As the first guide to focus on Mono for Android, this must-have resource dives into writing applications against Mono with C# and compiling executables that run on the Android family of devices.Putting the proven Wrox Professional format into practice, the authors provide you with the knowledge you need to become a successful Android application developer without having to learn another programming language. You'll explore screen controls, UI development, tables and layouts, and MonoDevelop as you become adept at developing Android applications with Mono for Android.Develop Android apps using tools you already know—C# and .NETAimed at providing readers with a thorough, reliable resource that guides them through the field of Android application programming, this must-have book shows how to write applications using Mono with C# that run on the Android family of devices. A team of authors provides you with the knowledge you need to become a successful Android application developer without having to learn another programming language. You'll explore screen controls, UI development, tables and layouts, and MonoDevelop as you become adept at planning, building, and developing Android applications with Mono for Android.Professional Android Programming with Mono for Android and .NET/C#:Shows you how to use your existing C# and .NET skills to build Android appsDetails optimal ways to work with data and bind data to controlsExplains how to program with Android device hardwareDives into working with the file system and application preferencesDiscusses how to share code between Mono for Android, MonoTouch, and Windows® Phone 7Reveals tips for globalizing your apps with internationalization and localization supportCovers development of tablet apps with Android 4Wrox Professional guides are planned and written by working programmers to meet the real-world needs of programmers, developers, and IT professionals. Focused and relevant, they address the issues technology professionals face every day. They provide examples, practical solutions, and expert education in new technologies, all designed to help programmers do a better job.Now, go buy a bunch of copies!!!!!If you are interested in iPhone and Android and would like to get a little more knowledgeable in the area of development, you can purchase the 3 pack of books from Wrox on Mobile Development with Mono.  This will cover MonoTouch, Mono for Android, and cross platform methods for using both tools.  A great package in and of itself.  The name of that package is: Wrox Cross Platform Android and iOS Mobile Development Three-Pack 

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  • Coordinates from 3DS Max to XNA 3.5

    - by David Conde
    Hello My problem is this. I have a simple box made in 3DS Max 2009, the Box is 10x10x10. I've tried to load it on XNA and traslate the camera for 15 units, but I can seem to find the values needed to see the box properly. Can anyone point me to a good resource where I can find some good introduction to XNA coordinate system and how is a simple box made in 3DS Max imported properly Best regards, David

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  • CodePlex Daily Summary for Saturday, March 20, 2010

    CodePlex Daily Summary for Saturday, March 20, 2010New ProjectsaMaze Mapa Generator: Parte do Projeto aMazeASP.Net RIA Controls: Simple ASP.Net server controls to integrate Flash and Silverlight controls into your web applications. Included controls don't use any JavaScript,...BMap.NET: BMaps.NET is a .NET application written in C#, for access Bing Maps from your computer without web browsers. With it you can access to Bing Maps an...DaliNet: A .NET API for the Tridonic.Atco DALI USB device.Fabrica7: This is the main project of Fabrica 7 Corp.Image Ripper: A Winform application parse & fetch various HD pictures in specific photo galleries.IoCWrap: Provides interfaces which wrap various IoC container implementations so that it is possible to switch to a different provider without changing any ...NetSockets: NetSockets is a .NET class library that provides easy-to-use, multi-threaded, event-based, client and server network communication.Network Backup: Network Backup is a home and small company backup solution for workstations and a backup server. It incorporates a backup service, scheduler, data ...NUnit.Specs: Specification extensions for NUnit.Nutrivida: Sistema para avaliação de especialização.OHTB Snake: OHTB Snake is a multiplayer game. In this incarnation, snakes may eat 3 types of powerups: standard berries, causing them to grow; sawberries, caus...Playground TDrouen: Tjerk's PlaygroundPower Plan Chooser: This is my first endeavor into a C# Windows application with XAML. The program sits in the notification area (task bar) and lets you quickly activa...Search IMDB in C#: In lack of an IMDB API most of us resort to screen scraping utilities to query the Internet Movie Database. This one is written in C# (.NET 2.0 sta...SIGPRO Desktop: FUNCERNSql2008 PerfMonCounter Fix: Small console application to Fix the SQL 2008 Express Edition installation error: Pequena aplicação para Corrigir o seguinte erro de Instalação do...TwiztedTracker: TwiztedTracker designed to make your bug tracking easy.UmbracoXsltLogHelper: I needed a way to easily add log rows from my xslt macros, and added a single-line-extension for that reason. Then I played around with the umbraco...VisualStock: VisualStock is stock data visualization, analysis application build on the Micorsoft Composite Application Library.WHS File Mover: A Windows Home Server Plugin to move files from a local directory ("drop" or "staging" directory to a folder share)XML based Content Deployment in SharePoint: XML based Content Deployment in Sharepoint helps you to easy deploy content into SharePoint, including webs, lists, items, files and folder. You wi...New ReleasesASP.Net RIA Controls: Version 1.0 Beta: The first functionnal version.BMap.NET: BMap.NET 1: This is the 1st version of BMap.NETDigital Media Processing Project 1: Image Processor: Image Processor 1.0: All features implemented. Added: clipping imageFamily Tree Analyzer: Version 1.3.1.0: Version 1.3.1.0 Added a cancel button to marriage and children IGI Searches Opening Results window now automatically shows first record Updated IGI...Free Silverlight & WPF Chart Control - Visifire: Visifire SL and WPF Charts 3.0.5 Released: Hi, This release contains fix for the following bug: * Chart threw exception if ZoomingEnabled property was set to True at real-time. You ca...Homework Helper: Homework Helper v.1.1: Sorry but the latest release didn't seem to be the latest. This should be the right one!Image Ripper: Image Ripper: Image Ripper based on HtmlAgilityPack and GData library.ManPowerEngine: 0.1: UpdatesSound System added. Bitmap Collider in Physics System works now. Improved the performance of HTTP download in images Physics Framework...NIPO Data Processing Component Framework: NIPO 1.0: The first release of NIPO. Includes the NIPO binary dll and documentation. This release does not include a starter application since it is still in...patterns & practices SharePoint Guidance: SPG2010 Drop7: SharePoint Guidance Drop Notes Microsoft patterns and practices ****************************************** ***************************************...Photosynth Point Cloud Exporter: Photosynth Point Cloud Exporter 1.0.2: Photosynth webservice reference updated to work with the new site OBJ file format support added (Note: this format doesn't support vertex colors)Power Plan Chooser: Power Plan Chooser 1.0.0: Power Plan Chooser is a small utility that sits in the notification area (task bar) in Windows 7 and allows the user to quickly activate one of the...Restart Explorer: RestartExplorer Release 1.00.0001: Initial release: Start, stop and restart Windows Explorer with this utility.Search IMDB in C#: Search IMDB 1.0: Source code included with compiled example.SIMD Detector: 3rd Release: Added Intel AES instruction check Added a CSharp Winform NetSIMDDetector application. Changes the red ball and green ball images to red cross a...Sql2008 PerfMonCounter Fix: Sql2008FIx_PerfMonCounter.zip: Small console application to Fix the SQL 2008 Express Edition installation error: http://support.microsoft.com/kb/300956 Rule Name PerfMonCounter...UmbracoXsltLogHelper: 0.9 Working Beta: First version. XsltLogHelper09 is the installable package.VCC: Latest build, v2.1.30319.0: Automatic drop of latest buildWCF RIA Services Contrib: RIA Services Contrib RC Release: This version is recompiled against the RC release of WCF RIA Services.XML based Content Deployment in SharePoint: SPContentDeployment 1.0.0.0: The first link contains the resources and a sample project. The second link contains everything included in the first package and an additional fo...Yet Another GPS: YAGPS Alfa.2: Yet another GPS tracker is a very powerful GPS track application for Windows Mobile Speed Guage, Sat Count number, KML for google map file formatZGuideTV.NET: ZGuideTV.NET 0.92: Vendredi 19 mars 2010 (ZGuideTV.NET bêta 9 build 0.92) - English below Corrections : - Gestion de certains contrôles dans l'écran principal. - Div...Most Popular ProjectsMetaSharpRawrWBFS ManagerSilverlight ToolkitASP.NET Ajax LibraryMicrosoft SQL Server Product Samples: DatabaseAJAX Control ToolkitLiveUpload to FacebookWindows Presentation Foundation (WPF)ASP.NETMost Active ProjectsLINQ to TwitterRawrOData SDK for PHPjQuery Library for SharePoint Web ServicesDirectQPHPExcelpatterns & practices – Enterprise LibraryBlogEngine.NETFarseer Physics EngineNB_Store - Free DotNetNuke Ecommerce Catalog Module

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  • how to run conky from terminal?

    - by Esmail0022
    http://www.unixmen.com/configure-con...t-howto-conky/ in this link there are 11 steps to get conky , i did all of them but the terminal show this message: The program 'conky' can be found in the following packages: * conky-cli * conky-std Try: sudo apt-get install and i try type this but saw this message: ismail@ismail-ASUS:~$ sudo apt-get install conky [sudo] password for ismail: E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? Can you help me?

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  • CodePlex Daily Summary for Saturday, March 27, 2010

    CodePlex Daily Summary for Saturday, March 27, 2010New ProjectsAlter gear SQL index Management: SQL Index management displays a list of indexes available for the chosen database and allows you to select an individual / group of indexes to be r...ASP League Ladder System: An ASP ladder / league system for online gaming league or real life leagues also.Augmented Reality Strategy Simulator: Augmented Reality Strategy Simulator is a software suite to promote computer aided strategy planning. Sports team can visualize their strategy usin...Boo syntax highlighting for Visual Studio 2010: Simple syntax hightlighting VSX add-in for Boo language in Visual Studio 2010.easySan: easySan zur einfachen Mitgliedsverwaltung im BRKFsUnit: FsUnit makes unit-testing with F# more enjoyable. It adds a special syntax to your favorite .NET testing framework.Laughing Dog XNA Framework: Laughing Dog is a simple to use, component based 2D framework for XNA game development. At present it is very early in development and as such is f...miniTodo: WPFでMVVMの練習にてきとうに作ったTODOアプリ 実用は無理です。My Common Library on .NET with CSharp: My Common Library on .NET with CSharp, it conclude database assecc, encrypt string, data caching, StringUtility, thank you for your view.Native code wrapping using c# : fsutil sparse commands: Ever thought about creating HUGE FILES for future use but felt bad for the wasted memory? Well, SPARSE FILES are the ANSWER! This FSUTIL SPARSE CO...Open SOA Platform: A centralized system for administering applications throught a SOA Enterprise Service Bus: Runtime environment (PROD, DEV, ...) , application and s...P-DBMS: Network and Database ProjectPraiseSight: PraiseSight is supposed to become a practical tool for churches to catalog an present their songs, lyrics and presentations on a beamer. The soluti...Pretty Good Frontend: Pretty Good Frontend is a sample frontend for ConfigMgr (SCCM) 2007 and MDT 2010 Zero Touch. S3Appender (Appender for Log4Net that Uses Amazon S3 For Storing Log Files): The S3Appender is a log4net appender that stores log events in either a MemoryStream or FileStream and sends them to S3 based on time intervals and...sEmit: sEmit (sms emitter) is an application written in C# which was built to send text messages. The project was founded in May 2009 by cansik. It works ...Silverlight RIA Tools: A tool set that generates a full RIA Solutions in Silverlightthommo cannon: Cannon for shooting down ThommosTianjin Polytechnic University Online Judge: Online Judge System Built on Microsoft technologies. Vision & Scope: A distributed OJ Solution on Windows and Cloud. Technologies used or planed...Tinare: Tinare is an byte encryption and decryption alogrithm. The input key is a string password.TinyPlug: Small Plugin Manager, written in C# Allows a project to define supported interfaces, and at runtime add plugins which support (inherit) these in...Utility niconv helps to convert text from one encoding to another: .NET implementation of GUN iconv console converter utility. The niconv program converts text from one encoding to another encoding. In the future r...WareFeed - Software Business Analytics: WareFeed is a simple but effective Software Business Analytics tool written in PHP and compatible others languages such as .NET, Java or Python. It...Y36API1: Semestralni projekt na Y36APINew ReleasesAlter gear SQL index Management: Setup 1.0.0: setup for first alpha releaseASP League Ladder System: ASPLeagueRelease_0_4_1: Release v 0.41Augmented Reality Strategy Simulator: Augmented Reality Strategy Simulator: Version 1.0 InstallerAutoAudit: AutoAudit 1.10e: Version 1.10e will be the final iteration of version 1 development. Version 2 will begin adding switches and options. Pleae email your suggestio...Boo syntax highlighting for Visual Studio 2010: Boo syntax VS 2010 - alpha: First release TODO: Multiline comments!Chargify.NET: Chargify.NET 0.6: Updated library, using Metered Components and updated Product information.Composer: V1.0.326.1000 Alpha: Initial Alpha release. Should be stable, with minor issues.CoNatural Components: CoNatural Components 1.6: Code fixes: Created helper classes to generate source code for type mapper/materializer. Fixed issue in optimized type materializer when loading ...CRM External View: 1.2: New Features in v1.2 release Password protected views. No more using Web Data Access role from v1. Filtering capabilities Caching for performan...Designit Video Embed Package: Release 1.1.0 beta1: You can now either have the video embeded directly in the template or have a preview in template that opens the video in a lightbox window.FsUnit: FsUnit 0.9.0 for NUnit: This release is for F# 2.0 and NUnit 2.5+.Laughing Dog XNA Framework: Laughing Dog 0.0.1: Laughing Dog - Alpla - v 0.0.1 First released version of the Laughing Dog framework.LiveUpload to Facebook: LiveUpload to Facebook 3.2: Version 3.2Become a fan on Facebook! Features Quickly and easily upload your photos and videos to Facebook, including any people tags added in Win...MapWindow6: MapWindow 6.0 msi March 26: This version adds the Join feature for creating a new "featureset" with attributes that are joined with attributes from a Excel data label named 'D...Mobile Broadband Logging Monitor: Mobile Broadband Logging Monitor 1.2.2: This edition supports: Newer and older editions of Birdstep Technology's EasyConnect HUAWEI Mobile Partner MWConn User defined location for s...Multiplayer Quiz: Release 1_6_351_0: A beta release of the next version. Please leave any errors in discussions or comments.Native code wrapping using c# : fsutil sparse commands: Fsutil sparse file native code - c sharp wrapper: Project Description A C# code wrapping a native code-Sparse files1 The code is about SPARSE files- the abillity to create huge files (for future us...Nice Libraries: 1.30 build 50325.01: Release 1.30 build 50325.01Pretty Good Frontend: Pretty Good Frontend binaries v1.0: This is the first public release of the Pretty Good Frontend binariesPylor: Pylor 0.1 alpha: This is the very first published version. I hope I can put a sample project soon.Quick Performance Monitor: Version 1.1 refresh: There was a typo or two in the sample batch file. Corrected now.Rapidshare Episode Downloader: RED v0.8.3: 0.8.1 introduced the ability to advance to the next episode. In 0.8.2 a bug was found that if episode number is less then 10, then the preceding 0...RapidWebDev - .NET Enterprise Software Development Infrastructure: RapidWebDev 1.52: RapidWebDev is an infrastructure helps to develop enterprise software solutions in Microsoft .NET easily and productively. This is the release vers...thommo cannon: game: gamethommo cannon: setup: setupthommo cannon: test: testTinare: Tinare DLL: Tinare DLL is a dynamic-link library written in C# which provides the functions to encrypt and decrypt a byte stream with tinare.WeatherBar: WeatherBar 2.1 [No Installation]: Minor changes to release 2.0 (http://weatherbar.codeplex.com/releases/view/42490). Fixed the bug that caused an exception to be thrown if the user...Most Popular ProjectsMetaSharpRawrWBFS ManagerASP.NET Ajax LibrarySilverlight ToolkitMicrosoft SQL Server Product Samples: DatabaseAJAX Control ToolkitLiveUpload to FacebookWindows Presentation Foundation (WPF)ASP.NETMost Active ProjectsRawrjQuery Library for SharePoint Web ServicesBlogEngine.NETMicrosoft Biology FoundationFarseer Physics Enginepatterns & practices: Composite WPF and SilverlightLINQ to TwitterTable2ClassFluent Ribbon Control SuiteNB_Store - Free DotNetNuke Ecommerce Catalog Module

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  • Sprite sheet generator

    - by Andrea Tucci
    I need to generate a sprite sheet with squared sprite for a 2D game. How can I generate a sprite sheet where each frame has x = y? The only think I have to do is to "insert" some blank space between sprites (in case y were x in the original sprite). Is there any program that I can use to trasform "irregular" sprite sheets to "squared" sprite sheets? An example of non-squared sprite sheet: http://spriters-resource.com/gameboy_advance/khcom/sheet/1138

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