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  • XRDP errors when trying to use sesman-x11rdp

    - by Nicholas
    I've just installed Ubuntu 11.10 Desktop on an old laptop of mine and I wanted to set it up so I could remote into it from my windows desktop. I've installed XRDP, but when I attempt to login using sesman-x11rdp it logs in, then the window shuts down. I've checked over the logs and here is what I get at the time of login: [20120123-16:49:23] [INFO ] scp thread on sck 8 started successfully [20120123-16:49:23] [INFO ] granted TS access to user nicholas [20120123-16:49:24] [INFO ] starting X11rdp session... [20120123-16:49:24] [CORE ] error starting X server - user nicholas - pid 3869 [20120123-16:49:24] [DEBUG] errno: 2, description: No such file or directory [20120123-16:49:24] [DEBUG] execve parameter list: 11 [20120123-16:49:24] [DEBUG] argv[0] = X11rdp [20120123-16:49:24] [DEBUG] argv[1] = :11 [20120123-16:49:24] [DEBUG] argv[2] = -geometry [20120123-16:49:24] [DEBUG] argv[3] = 1280x720 [20120123-16:49:24] [DEBUG] argv[4] = -depth [20120123-16:49:24] [DEBUG] argv[5] = 16 [20120123-16:49:24] [DEBUG] argv[6] = -bs [20120123-16:49:24] [DEBUG] argv[7] = -ac [20120123-16:49:24] [DEBUG] argv[8] = -nolisten [20120123-16:49:24] [DEBUG] argv[9] = tcp [20120123-16:49:25] [DEBUG] argv[10] = (null) [20120123-16:49:34] [ERROR] X server for display 11 startup timeout [20120123-16:49:34] [ERROR] X server for display 11 startup timeout [20120123-16:49:34] [INFO ] starting xrdp-sessvc - xpid=3869 - wmpid=3868 [20120123-16:49:34] [ERROR] another Xserver is already active on display 11 [20120123-16:49:34] [DEBUG] aborting connection... [20120123-16:49:34] [INFO ] session 3867 - user nicholas - terminated Can anyone point me to the proper way to get this working with x11rdp?

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  • cannot access ubuntu 12.04 SAMBA share from windows 7 using hostname

    - by user98398
    I've been trying for days to get this working, and everywhere I look online it seems no one has a definitive answer, so here is the run down: I have an external drive attached to my ubuntu 12.04 machine, "nicholas-desktop." I have the entire drive shared over the network via SAMBA. If I try to access the drive from windows 7 by using "\nicholas-desktop" it fails saying it cannot locate "nicholas-desktop." However, if I use the current IP address assigned to my machine by my router's DHCP server by typing "\192.168.2.XXX" I have no problems accessing the share. if I try to ping my ubuntu machine's hostname from windows it fails. The same happens if I try to ping my windows machine, "nicholas-laptop" from my ubuntu machine. Again, if I use either machine's assigned IP address it works fine. Can someone please help me get this working? I don't want any workarounds like setting a static IP, or DHCP reservation, I want to be able to resolve hostnames from both sides. I have tried enabling SAMBA'a WINS server so I could resolve the hostnames using netBIOS, however that didn't work either, I may have made a mistake setting it up though. Thanks for your time, NCB

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  • Memory efficient import many data files into panda DataFrame in Python

    - by richardh
    I import into a panda DataFrame a directory of |-delimited.dat files. The following code works, but I eventually run out of RAM with a MemoryError:. import pandas as pd import glob temp = [] dataDir = 'C:/users/richard/research/data/edgar/masterfiles' for dataFile in glob.glob(dataDir + '/master_*.dat'): print dataFile temp.append(pd.read_table(dataFile, delimiter='|', header=0)) masterAll = pd.concat(temp) Is there a more memory efficient approach? Or should I go whole hog to a database? (I will move to a database eventually, but I am baby stepping my move to pandas.) Thanks! FWIW, here is the head of an example .dat file: cik|cname|ftype|date|fileloc 1000032|BINCH JAMES G|4|2011-03-08|edgar/data/1000032/0001181431-11-016512.txt 1000045|NICHOLAS FINANCIAL INC|10-Q|2011-02-11|edgar/data/1000045/0001193125-11-031933.txt 1000045|NICHOLAS FINANCIAL INC|8-K|2011-01-11|edgar/data/1000045/0001193125-11-005531.txt 1000045|NICHOLAS FINANCIAL INC|8-K|2011-01-27|edgar/data/1000045/0001193125-11-015631.txt 1000045|NICHOLAS FINANCIAL INC|SC 13G/A|2011-02-14|edgar/data/1000045/0000929638-11-00151.txt

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  • Application Performance Episode 2: Announcing the Judges!

    - by Michaela Murray
    The story so far… We’re writing a new book for ASP.NET developers, and we want you to be a part of it! If you work with ASP.NET applications, and have top tips, hard-won lessons, or sage advice for avoiding, finding, and fixing performance problems, we want to hear from you! And if your app uses SQL Server, even better – interaction with the database is critical to application performance, so we’re looking for database top tips too. There’s a Microsoft Surface apiece for the person who comes up with the best tip for SQL Server and the best tip for .NET. Of course, if your suggestion is selected for the book, you’ll get full credit, by name, Twitter handle, GitHub repository, or whatever you like. To get involved, just email your nuggets of performance wisdom to [email protected] – there are examples of what we’re looking for and full competition details at Application Performance: The Best of the Web. Enter the judges… As mentioned in my last blogpost, we have a mystery panel of celebrity judges lined up to select the prize-winning performance pointers. We’re now ready to reveal their secret identities! Judging your ASP.NET  tips will be: Jean-Phillippe Gouigoux, MCTS/MCPD Enterprise Architect and MVP Connected System Developer. He’s a board member at French software company MGDIS, and teaches algorithms, security, software tests, and ALM at the Université de Bretagne Sud. Jean-Philippe also lectures at IT conferences and writes articles for programming magazines. His book Practical Performance Profiling is published by Simple-Talk. Nik Molnar,  a New Yorker, ASP Insider, and co-founder of Glimpse, an open source ASP.NET diagnostics and debugging tool. Originally from Florida, Nik specializes in web development, building scalable, client-centric solutions. In his spare time, Nik can be found cooking up a storm in the kitchen, hanging with his wife, speaking at conferences, and working on other open source projects. Mitchel Sellers, Microsoft C# and DotNetNuke MVP. Mitchel is an experienced software architect, business leader, public speaker, and educator. He works with companies across the globe, as CEO of IowaComputerGurus Inc. Mitchel writes technical articles for online and print publications and is the author of Professional DotNetNuke Module Programming. He frequently answers questions on StackOverflow and MSDN and is an active participant in the .NET and DotNetNuke communities. Clive Tong, Software Engineer at Red Gate. In previous roles, Clive spent a lot of time working with Common LISP and enthusing about functional languages, and he’s worked with managed languages since before his first real job (which was a long time ago). Long convinced of the productivity benefits of managed languages, Clive is very interested in getting good runtime performance to keep managed languages practical for real-world development. And our trio of SQL Server specialists, ready to select your top suggestion, are (drumroll): Rodney Landrum, a SQL Server MVP who writes regularly about Integration Services, Analysis Services, and Reporting Services. He’s authored SQL Server Tacklebox, three Reporting Services books, and contributes regularly to SQLServerCentral, SQL Server Magazine, and Simple–Talk. His day job involves overseeing a large SQL Server infrastructure in Orlando. Grant Fritchey, Product Evangelist at Red Gate and SQL Server MVP. In an IT career spanning more than 20 years, Grant has written VB, VB.NET, C#, and Java. He’s been working with SQL Server since version 6.0. Grant volunteers with the Editorial Committee at PASS and has written books for Apress and Simple-Talk. Jonathan Allen, leader and founder of the PASS SQL South West user group. He’s been working with SQL Server since 1999 and enjoys performance tuning, development, and using SQL Server for business solutions. He’s spoken at SQLBits and SQL in the City, as well as local user groups across the UK. He’s also a moderator at ask.sqlservercentral.com.

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  • Where can I find WebSphere configuration files?

    - by Nicholas Key
    Hi there, I would like to know where are the WebSphere configuration details saved? Specifically, configuration details that are shown in the Administrative Console (from the web) or from the console using wsadmin. Some of the examples would be: Java and Process Management: Class loader, Process definition, Process execution Container Settings: Session management, SIP Container Settings, Web Container Settings, Portlet Container Settings Are there XML files that persist these configuration details? Nicholas

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  • Unable to jstat WebSphere Application Server PID

    - by Nicholas Key
    Hi stackoverflow'ers, I've spent the entire day trying to find relevant resources about doing jstat on the WebSphere Process ID. I have WebSphere Application Server 7.0 installed on Windows 2003. I did this command: jstat -gcutil [PID] 1000 But I kept getting "[PID] not found" message. Any idea how to resolve this issue? Or Java's jstat utility does not probe into IBM's derivative JVM? Nicholas

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  • JVM ID not found

    - by Nicholas Key
    Hi all, I've recently downloaded and installed WebSphere Application Server 7.0 on Windows 2003. I wanted to do a jstat (JDK 1.6) to probe the JVM but I kept getting " not found" message. Any idea why this is happening? Nicholas

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  • How to post something to Facebook from Android?

    - by Nicholas Key
    Hi stackoverflow'ers, Quick questions here: What are the necessary tools/APIs to post something from Android to Facebook? I looked at this URL http://wiki.developers.facebook.com/index.php/User%3AAndroid and it mentioned a few suggestions. Have anyone tried fbrocket? What is Facebook Connect anyway? Thanks! Nicholas

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  • geocode webservice address parameter written in another language

    - by nicholas
    Dear fellow Programmers, I try to use the following google map webservice in order to locate greek addresses: http://maps.google.com/maps/api/geocode/json?address=??ad?µ?a? 16&sensor=false and it does not work. If I hit the same exactly address but written with latin alphabet characters: maps.google.com/maps/api/geocode/json?address=akadimias 16&sensor=false, it works and returns the right result. Could somebody help with this? (To use this service with greek letters as language parameter) Thank you in advance, Nicholas

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  • Where can I find WebSphere configuration files?

    - by Nicholas Key
    Hello Stackoverflow'ers, I would like to know where are the WebSphere configuration details saved? Specifically, configuration details that are shown in the Administrative Console (from the web) or from the console using wsadmin. Some of the examples would be: Java and Process Management: Class loader, Process definition, Process execution Container Settings: Session management, SIP Container Settings, Web Container Settings, Portlet Container Settings Are there XML files that persist these configuration details? Nicholas

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  • no sms deleted folder?

    - by Nicholas
    Hi, I'm new to Android and trying to convert a Windows Mobile app to java/android. In WM there are the followning standard folders: Inbox,Sent, dratfs, outbox, deleted. I'm able to access all folders except deleted with Uri.parse("content://sms/XXXXXX") 1) Is deleted folder missing? 2) Is it possible to create user folders, like "content://sms/My Folder" Thanks, Nicholas

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  • Upcoming Webinar: Practical Performance Profiling presented by Jean-Philippe Gouigoux

    - by Michaela Murray
    Hot on the heels of releasing his new book, Practical Performance Profiling, I'm delighted that Jean-Philippe Gouigoux will be joining us on April 3rd to present a free webinar on optimizing .NET code performance. He gave me a sneak preview of his talk last week and there's a lot of really useful advice in there. He'll be discussing why he thinks 20% of performance problems account for 80% of lost time, before looking at some real examples of both server-side and client-side profiling, and covering a variety of best practices you can use to improve the performance of your own code. The webinar will be followed by a Q&A session where he'll be joined by Red Gate technical support engineer Chris Allen to answer any of your questions. Jean-Philippe has 10 years' experience in .NET, most recently as system architect at MGDIS, and was recently made a Microsoft MVP for his contributions to the .NET community. I'm really excited that he's found a gap between his day job and university lecturing to share his knowledge, and I hope you'll be able to join us on April 3rd - it's free but you do need to register in advance at https://www3.gotomeeting.com/register/829014934. I'll see you there!

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  • What is wrong with my Dot Product?

    - by Clay Ellis Murray
    I am trying to make a pong game but I wanted to use dot products to do the collisions with the paddles, however whenever I make a dot product objects it never changes much from .9 this is my code to make vectors vector = { make:function(object){ return [object.x + object.width/2,object.y + object.height/2] }, normalize:function(v){ var length = Math.sqrt(v[0] * v[0] + v[1] * v[1]) v[0] = v[0]/length v[1] = v[1]/length return v }, dot:function(v1,v2){ return v1[0] * v2[0] + v1[1] * v2[1] } } and this is where I am calculating the dot in my code vector1 = vector.normalize(vector.make(ball)) vector2 = vector.normalize(vector.make(object)) dot = vector.dot(vector1,vector2) Here is a JsFiddle of my code currently the paddles don't move. Any help would be greatly appreciated

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  • What is wrong with my Dot Product? [Javascript]

    - by Clay Ellis Murray
    I am trying to make a pong game but I wanted to use dot products to do the collisions with the paddles, however whenever I make a dot product objects it never changes much from .9 this is my code to make vectors vector = { make:function(object){ return [object.x + object.width/2,object.y + object.height/2] }, normalize:function(v){ var length = Math.sqrt(v[0] * v[0] + v[1] * v[1]) v[0] = v[0]/length v[1] = v[1]/length return v }, dot:function(v1,v2){ return v1[0] * v2[0] + v1[1] * v2[1] } } and this is where I am calculating the dot in my code vector1 = vector.normalize(vector.make(ball)) vector2 = vector.normalize(vector.make(object)) dot = vector.dot(vector1,vector2) Here is a JsFiddle of my code currently the paddles don't move. Any help would be greatly appreciated

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  • Application Performance: The Best of the Web

    - by Michaela Murray
    Wisdom A deep understanding and realization […] resulting in the ability to apply perceptions, judgements and actions. It is also the comprehension of what is true coupled with optimum judgment as to action. - Wikipedia We’re writing a book for ASP.NET developers, and we want you to be a part of it. We know that there’s a huge amount of web developer wisdom that never gets shared, and we want to find those golden nuggets of knowledge and experience, and make sure everyone can learn from them. Right now, we want to find out about your top tips, hard-won lessons, and sage advice for avoiding, finding, and fixing application performance problems. If you work with .NET and SQL, even better – a lot of application performance relies on the interaction with the database, so we want to hear from you! “How Do You Want Me To Be Involved?” Right! Details! We want you, our most excellent readers, to email us with the Best Advice you would give to other developers for getting the best performance out of their applications. It doesn’t matter if your advice is for newbies or veterans, .NET or SQL – so long as it’s about application performance, we want to hear from you. (And if you think that there’s developer wisdom out there that “everyone knows”, a) I’m willing to bet you could find someone who doesn’t know about it, and b) it probably bears repeating anyway!) “I’m Interested. What Can You Do For Me?” Excellent question. For starters, there’s a chance to win a Microsoft Surface (the tablet, not the table-top). Once all the ASP.NET Wisdom has been collected, tallied, and labelled, it will then be weighed and measured by a team of expert judges (whose identities are still a closely-guarded secret).  The top tip in both SQL & .NET categories will each win their author their very own MS Surface. But that’s not all! We can also give you… immortality! More details? Ok. We’ll be collecting all of the tips sent in by our readers (and we can’t wait to learn from you all,) and with the help of our Simple-Talk editors, we will publish and distribute your combined and documented knowledge as a free, community-created, professionally typeset eBook. You will naturally be credited by name / pseudonym / twitter handle / GitHub username / StackOverflow profile / Whatever, as the clearly ingenious author of hot performance tips. The Not-Very-Fine Print Here’s the breakdown: We want to bring together the best application performance knowledge from ASP.NET developers. Closing date for submissions will be 9am GMT, December 4th. Submissions should be made by email – [email protected] Submissions will be judged by a panel of expert judges (who will be revealed soon). The top submission in both the SQL & .NET categories will each win a Microsoft Surface. ALL the tips which make it through the judging process will be polished by Simple-Talk editors, and turned into a professionally typeset eBook, which will be freely available, and promoted alongside the ANTS Performance Profiler tool. Anyone whose entry makes it into the book will be clearly and profusely credited in the method of their choice (or can remain anonymous.) The really REALLY short version Share what you know about ASP.NET application performance for a chance to win a Microsoft Surface, and then get your name credited in a slick eBook with top-notch production values. For more details, see above. We can’t wait to learn from you!

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  • Microsoft Dev Centre accounts

    - by Phil Murray
    Looks like Microsoft is offering a special offer of 95% of the yearly subscription for the Phone Dev Centre (I didn't say anything about desperate). What I was wondering is do you need a seperate account to publish to the Windows Phone app centre and the Windows App Centre? Also I heard some horror stories about the time it takes to get application published on the Windows phone marketplace, does anyone have any experience with this? Windows Phone Dev Centre Windows App Dev Centre

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  • Architecting multi-model multi-DB ASP.NET MVC solution

    - by A. Murray
    I have an ASP.NET MVC 4 solution that I'm putting together, leveraging IoC and the repository pattern using Entity Framework 5. I have a new requirement to be able to pull data from a second database (from another internal application) which I don't have control over. There is no API available unfortunately for the second application and the general pattern at my place of work is to go direct to the database. I want to maintain a consistent approach to modeling the domain and use entity framework to pull the data out, so thus far I have used Entity Framework's database first approach to generate a domain model and database context over the top of this. However, I've become a little stuck on how to include the second domain model in the application. I have a generic repository which I've now moved out to a common DataAccess project, but short of creating two distinct wrappers for the generic repository (so each can identify with a specific database context), I'm struggling to see how I can elegantly include multiple models?

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  • ANTS Performance Profiler 7.0 has been released!

    - by Michaela Murray
    Please join me in welcoming ANTS Performance Profiler 7 to the world of .NET. ANTS Performance Profiler is a .NET code profiling tool. It lets you identify performance bottlenecks within minutes and therefore enables you to optimize your application performance. Version 7.0 includes integrated decompilation: when profiling methods and assemblies with no source code file, you can generate source code right from the profiler interface. You can then browse and navigate this automatically generated source as if it was your own. If you have an assembly's PDB file but no source, integrated decompilation even lets you view line-level timings for each method, pinpointing the exact cause of performance bottlenecks. Integrated decompilation is powered by .NET Reflector, but you don't need Reflector installed to use the functionality. Watch this video to see it in action. Also new in ANTS Performance Profiler 7.0: · Full support for SharePoint 2010 - No need to manually configure profiling for the latest version of SharePoint · Full support for IIS Express · Azure and Amazon EC2 support, enabling you to profile in the cloud Please click here, for more details about the ANTS Performance Profiler 7.0.

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  • TypeScript or JavaScript for noob web developer [closed]

    - by Phil Murray
    Following the recent release by Microsoft of TypeScript I was wondering if this is something that should be considered for a experienced WinForm and XAML developer looking to get into more web development. From reviewing a number of sites and videos online it appears that the type system for TypeScript makes more sense to me as a thick client developer than the dynamic type system in Javascript. I understand that Typescript compiles down to JavaScript but it appears that the learning curve is shallower due to the current tooling provided by Microsoft. What are your thoughts?

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  • 25 Secrets for Faster ASP.NET: the Eagle has landed!

    - by Michaela Murray
    On Friday we launched our new free eBook, 25 Secrets for Faster ASP.NET Applications! Heading for 1000 of you have picked it up already, but if you haven’t got your copy yet, you can grab it from http://www.red-gate.com/25secrets. It’s the follow up to the wildly successful 50 Ways to Avoid, Find and Fix ASP.NET Performance Issues, which we released back in January this year (you can download from www.red-gate.com/50ways). Once again, we collected tips from some of the smartest brains in the ASP.NET community, but this time around, we’ve covered the latest stuff in the .NET framework – async/await, Web API, and more. Houston, we have a winner… In my original blogpost, I offered a Microsoft Surface as a prize for the best tip. Now, after some serious deliberation, our judges have settled on a winner. By a unanimous verdict, the prize goes to… (wait for it!) … Jeffrey Richter, for this cheeky number, Tip #1 in the new book: Want to build scalable websites and services? Work asynchronously One of the secrets to producing scalable websites and services is to perform all your I/O operations asynchronously to avoid blocking threads. When your thread issues a synchronous I/O request, the Windows kernel blocks the thread. This causes the thread pool to create a new thread, which allocates a lot of memory and wastes precious CPU time. Calling xxxAsync method and using C#’s async/await keywords allows your thread to return to the thread pool so it can be used for other things. This reduces the resource consumption of your app, allowing it to use more memory and improving response time to your clients. Congratulations Jeffrey! Of course, I also owe a massive thank you to everyone who’s been involved in the book, especially all the authors. It’s a real treat to work with a developer community that’s so keen to collaborate and to share their hard-won nuggets of performance knowhow. If you haven’t read it yet, I can’t recommend it highly enough. You can get it for free at www.red-gate.com/25secrets The full backstory for both eBooks: https://www.simple-talk.com/blogs/2012/11/15/application-performance-the-best-of-the-web/ https://www.simple-talk.com/blogs/2012/11/27/application-performance-episode-2-announcing-the-judges/ https://www.simple-talk.com/blogs/2013/01/25/free-ebook-50-ways-to-avoid-find-and-fix-asp-net-performance-issues/ https://www.simple-talk.com/blogs/2013/03/22/50-ways-to-avoid-find-and-fix-asp-net-performance-issues-the-next-generation/

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  • Frames per Second and Updates per Second [on hold]

    - by matt murray
    So this is more a general resources question, as I am seeking knowledge on how best to conserve resources in a game (I am writing in Java, and please this is not a thread on what language I should write it in, I have already chosen Java) so that the updates and frames per second could be the highest they could be. In general I am just searching for any articles you may have, any personal experience, anything what so ever that could be of use to a pretty new Java game developer on the subject! Thanks in advance!

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  • How can I loop thru all controls (including ToolStripItems) C#

    - by Murray
    I need to save and restore settings for specific controls on a form. I loop thru all controls and return the one whose name matches the one I want, like so: private static Control GetControlByName(string name, Control.ControlCollection Controls) { Control thisControl = null; foreach (Control c in Controls) { if (c.Name == name) { thisControl = c; break; } if (c.Controls.Count > 0) { thisControl = GetControlByName(name, c.Controls); if (thisControl != null) { break; } } } return thisControl; } From this I can determine the type of control and therefore the property that should be / has been stored. This works well unless the control is one of the ToolStrip family which has been added to a toolstrip. e.g. this.toolStrip.Items.AddRange(new System.Windows.Forms.ToolStripItem[] { this.lblUsername, // ToolStripLabel this.toolStripSeparator1, this.cbxCompany}); // ToolStripComboBox In this case I can see the control I'm interested in (cbxCompany) when debugging, but the name property has no value so the code does not match to it. Any suggestions on how I can get to these controls too? Cheers, Murray

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  • Connecting PC via Bluetooth SNP

    - by Nicholas
    Hi, I have a widcomm example BluChat "WIDCOMM SDK RFComm Service" running on my PC with an USB dongle (BT-2400P). I would like to connect this chat from my HTC Desire. So I stared with the Java example http://developer.android.com/resources/samples/BluetoothChat/index.html. This is also using BT RFComm. If I'm using my HTC as a server it work's fine, but I would like to use my PC as a server. Then .connect() comes back with "Service Discovery Failure". I have modified the UUID string in the Java example to match the PC-application mmSocket = mmDevice.createRfcommSocketToServiceRecord(UUID.fromString("5fc2a42e-144e-4bb5-b43f-4e61711d1c32")); mmSocket.connect(); What is missing? Any help appreciated. Nicholas

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