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• How can i get a quaternion through my 1 axis gyroscope?

  - by Mathis Vic

  My problem is, i have a 1 axis gyroscope and a 3 axis acellerometer in my device. I managed to get the quaternion through the accelerometer but i cant figure out how to do it with the gyroscope. I want to be able to, through my gyroscope ( angular rate information) get a quaternion out of it.

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• objective C NSString retain

  - by Amarsh

  If I create a String with [NSString StringWithFormat], do I have to [retain] it? My understanding is that convenience methods add the objects to autorelease pool. If that is the case, shouldnt we retain the object so that it doesnt get drained with pool at the end of the event loop?

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• keyboard button number in Psychtoolbox - matlab

  - by ariel

  Hi I am looking for a table that will give me the number of the button (device number) so I could use KbCheck in matalb psychtoolbox. I am working with PTB-3 and windows XP Thnak you Ariel

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• Android: how to convert a Drawable to Bitmap

  - by Rob

  How can I convert a Drawable to a Bitmap? I would like to set a certain drawable as the device's wallpaper, but all wallpaper functions accept Bitmaps only (I cannot use WallpaperManager - I'm pre 2.1). Also, my drawables are downloaded from the web and do not reside in R.drawable. Thanks, Rob

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• Recording audio from the microphone in Windows Phone 7 Series

  - by Richard

  Hi I'm wondering if anyone has any code samples or links to documentation that demonstrate how to capture audio from the device's microphone on the new Windows Phone Series 7. I've recently downloaded the Windows Phone SDK CTP for Visual Studio 2010 and I'm struggling to find any supporting documentation that might help. Thanks, Richard.

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• Can Microchip TCP/IP stack implements two or more clients sockets at the same time?

  - by O Engenheiro

  I need to make one device communicate with 2 servers. Is it possible with Microchip TCP/IP stack?

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• make desktop sms application using windows mobile 6.1

  - by Amit Kumar Jha

  hey all, I have to make a SMS sending application in .NET which uses a connected CDMA based Windows mobile 6.1 device to send sms. The problem is I have never worked on smartphone app development so don't have any idea about how should i go about it. Couldn't find anything useful on SO or elsewhere, so please guide me in the right direction. Thanks in advance to all those who reply. P.S.:I posted a similar question regarding blackberry here

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• Deploy Connectivity Platform Folder/Files

  - by Dave

  I'm using the Microsoft.SmartDevice.Connectivity features, but I do not know how to get the CoreCon Folder and files under "C:\Documents and Settings\All Users\Application Data\Microsoft\corecon\1.0\1033" deployed as part of an install project. The "new DatastoreManager(1033)" fails becouse users of my app do not have that folder and device xml files. Any Ideas of how to install or deploy those files? I assume I have those as part of an API I've installed, but can not pinpoint the source. Thanks

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• Moving data from SQL Compact to SQL Server 2008

  - by Ashok

  I have created an .SDF file and inserted data into the SDF database file on a mobile device. I want to transform .SDF file to a SQL Server 2008 Database File but don't know how. Any pointers or suggestions would be appreciated.

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• Can the same socket be used for server and client?

  - by Surjya Narayana Padhi

  Hi Geeks, I put a TCP server and client code in PIC controller. Now just wanted to know, can the same device run both client and server at sametime? And if possible can we use the same socket on a TCP stack for server and for client?

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• Immutable values in F#

  - by rsteckly

  I'm just getting started in F# and have a basic question. Here's the code: let rec forLoop body times = if times <= 0 then () else body() forLoop body (times -1) I don't get the concept of how when you define a variable it is a value and immutable. Here, the value is changing in order to loop. How is that different from a variable in C#?

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• how to send push JSON to urban airship server using api

  - by Viswa

  I am using urban airship for sending push notification, i finished all configuration in my app and i can send notification from urban airship website. Now i have to request urban airship api for sending push notification (using this " https://go.urbanairship.com/api/push/") URL and i have send json like this { "apids": [ "some APID", "another APID" ], "aliases": ["my_alias"], "tags": ["tag1", "tag2"], "android": { "alert": "Hello from Urban Airship!", "extra": {"a_key":"a_value"} } } i want to send push notification for single device, i think i have to do this using APID, isn't it?.

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• Android App Presentation

  - by Techeretic

  I wanted to make a video presentation of my android application. i know i can make the presentation by holding a camcorder in front of the screen and give walkthrough the application. But is there any other way this can be done, something on the lines of JingProject for windows wherein you can record your activities on your screen in a video. is there a tool that can help me achieve the same on my android device

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• iPhone error while importing .app into iTunes

  - by XiLei

  Hi guys, My application tester has a problem while importing .mobileprovision file into iTunes. As I don't have the device I'm not able to check things out, here is the error message: The provisioning profile "embedded.mobileprovision" could not be imported because an unknown error occurred (0xE800801A). Any idea? He is trying to test on iPhone, if that helps. Thanks, XL

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• Is file transfer possible to iPhone 3.0 via Bluetooth or not?

  - by Dimitri Wetzel

  Is it possible to transfer files of a bluetooth device, lets say a digital pen (e.g. Nokia or Logitech io2) to the iPhone? I am interested if I could do a native application that could somehow get that binary file sent by the digital pen and do something with it. I am used to rfcomm and obex but I can only find inconclusive results when I search for that and the support in the iPhone SDK... Any ideas?

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• python: how to terminate a thread when main program ends

  - by facha

  Hi, everyone If have a thread in infinite loop, is there a way to terminate it when main program ends (for example, when I press ctrl+C)?

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• In Javascript convert a string so it can be used to call a property

  - by Jeremy Petzold

  So, I have an associative array and the keys in the array are properties of an object. I want to loop through the array and in each interation do something like this: Object.key This however does not work and results in returning undefined rather than the value of the property. Is there a way to do this? Thanks

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• How to check if the block is present in a sparse file (for simple copy-on-write)?

  - by Vi

  How to get sparse block size and check if data is present at the given offset in sparse file in reiserfs/ext3 in Linux? I want to use it to implement simple copy-on-write block device using FUSE. Or I should better keep a bitmap in a separate file?

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• Python directory list returned to Django template

  - by Shu

  Total Python newb here. I have a images directory and I need to return the names and urls of those files to a django template that I can loop through for links. I know it will be the server path, but I can modify it via JS. I've tried os.walk, but I keep getting empty results.

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• Visual Basic .NET Help

  - by Daniel

  How can I get this code into a loop? contact.first_name = list.Item(0) contact.middle_name = list.Item(1) contact.last_name = list.Item(2) contact.age = list.Item(3) contact.mobile_phone = list.Item(4) contact.home_phone = list.Item(5) contact.work_phone = list.Item(6) contact.home_street = list.Item(7) contact.home_city = list.Item(8) contact.home_state = list.Item(9) contact.home_zip = list.Item(10) contact.work_street = list.Item(11) contact.work_city = list.Item(12) contact.work_state = list.Item(13) contact.work_zip = list.Item(14)

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• Reading a file N lines at a time in ruby

  - by Sam

  I have a large file (hundreds of megs) that consists of filenames, one per line. I need to loop through the list of filenames, and fork off a process for each filename. I want a maximum of 8 forked processes at a time and I don't want to read the whole filename list into RAM at once. I'm not even sure where to begin, can anyone help me out?

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• sudo taking long time

  - by Sam

  On a Ubuntu 9 64bit Linux machine, sudo takes longer time to start. "sudo echo hi" takes 2-3 minutes. strace on sudo tells poll("/etc/pam.d/system-auth", POLLIN) timesout after 5 seconds and there are multiple calls(may be a loop) to same system call (which causes 2-3min delay). Any idea why sudo has to wait for /etc/pam.d/system-auth? Any tunable to make sudo to timeout faster? Thanks Samuel

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• Simplest way to match array of strings to search in perl?

  - by Ben Dauphinee

  What I want to do is check an array of strings against my search string and get the corresponding key so I can store it. Is there a magical way of doing this with Perl, or am I doomed to using a loop? If so, what is the most efficient way to do this? I'm relatively new to Perl (I've only written 2 other scripts), so I don't know a lot of the magic yet, just that Perl is magic =D Reference Array: (1 = 'Canon', 2 = 'HP', 3 = 'Sony') Search String: Sony's Cyber-shot DSC-S600 End Result: 3

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• Multiple Active Calls in Blackberry

  - by Umar Siddique

  i need help in finding any software for blackberry device which can do multiple active calls like if i hold my first call and make my second call then also put this call on hold without disconnecting the first call and recieve or make third call is there any solution for this ?

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• How can I extract all quotations in a text?

  - by secr

  I'm looking for a SimpleGrepSedPerlOrPythonOneLiner that outputs all quotations in a text. Example 1: echo “HAL,” noted Frank, “said that everything was going extremely well.” | SimpleGrepSedPerlOrPythonOneLiner stdout: "HAL," "said that everything was going extremely well.” Example 2: cat MicrosoftWindowsXPEula.txt | SimpleGrepSedPerlOrPythonOneLiner stdout: "EULA" "Software" "Workstation Computer" "Device" "DRM" etc. (link to the corresponding text).

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