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  • SWFUpload with rails

    - by xpepermint
    Hey. I try to use SWFUpload Javascript/Flash library for uploading files in my Rails (RoR) app. Upload works with standard form but with SWFUpload I get "HTTP Status: 422" error code. Can someone tell me how to fix that?

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  • What type of Multimeter is safe to use on computers?

    - by Ssvarc
    In "Upgrading and Repairing PC's - 18th edition" by Scott Mueller on pg. 1278 he discusses multimeters. "You should only use a DMM (digital multimeter) instead of the older needle-type multimeters because the older meters work by injecting 9V into the circuit when measuring resistance, which damages most computer circuits. A DMM uses a much smaller voltage (usually 1.5V) when making resistance measurements, which is safe for electronic equipment." Most DMM's that I've looked at have 9V batteries. Are they internally stepping down the voltage used when making these measurements? Wouldn't the concern of injecting 9V be true when measuring continuity as well? A little off topic, there is a fascinating way to test for laptop screen inverter failure, (http://www.fonerbooks.com/test.htm), is anyone aware of a safe DMM that is capable of this as well?

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  • Drawing scaled emoji icons on iOS

    - by Eimantas
    I'm trying to implement my own emoji icon keyboard and have some problems. I'm trying to draw emoji icons at the same size as on native iOS emoji keyboard, but when doing simple drawing (standard unicode characters like "\ue415") icons always appear at original size. When trying to increase the font - emoji icons stay of the same size. When applying CGAffineTransform for scaling - drawn icons are bigger, but pixelated and blurred. How should I go about drawing emoji icons bigger, but sharper?

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  • Error: Failed to generate a user instance of SQL Server (again)

    - by Richard77
    Hello, I'm using: Vista SP2 Visual Studio 2010 professional edition SQL Server 2008 Express R2 Dev Server (Cassini) This question has been asked several times. Unfortunately, I didn't find yet an answer that exactly appropriate for me, so it's not possible to apply the solutions I find on the web. I find solutions for Win XP, 7, 2003, sql server 2005. But not for the above combination. I just don't why this problem started a couple days ago. I removed sql server and added it again, but no good result. Either an answer to the question or links to resources will be helpful. Thanks for helping.

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  • Ionics Rewrite Filter setup on IIS 5.1

    - by Neil Aitken
    I'm trying to configure IIRF 2 on IIS 5.1 running on XP Pro, so that I can run the Zend Framework. I've managed to get the filter running on a second website that I setup using one the IIS admin scripts. When I goto iirfStatus I get this: The problem is the .ini path for the site is pointing to c:\windows\system32\Irif.ini rather than the site root. If I try creating an IIS application under IIS-Website Properties-Home Directory then iirfStatus stops working entirely. Any ideas how I can set the ini path correctly, or will I only be able to get away with this on a proper server edition of IIS?

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  • What tag export formats are there?

    - by Jamie Rumbelow
    I'm writing an importer for a CMS to import tags from various platforms/sources. I wanted to be able to import tags from WordPress, Moveable Type, Blogger; basically all of the big boys. But I was also interested to see if people knew of any generic, standard tag export formats that I might be able to support. Thanks, Jamie

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  • there's no sudo command in cygwin

    - by Jason Sundram
    Because there's no sudo command in Cygwin, scripts that I want to run fail with ./install.sh: line N: sudo: command not found What's the standard way for getting around this? Editing the scripts to remove sudo? Getting some sudo-like tool for windows?

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  • Applescript file dialog with UI scripting

    - by Pepijn
    I am trying to open a file in a not so scriptable area of an application. I got halfway there by using UI scripting to select the proper menu item, but this opens a standard file dialog. How can I set the destination of the file dialog with Applescript?

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  • Does an alternative to regedit.exe exist?

    - by Peter Mortensen
    Is there something better than regedit.exe for searching and editing the Windows registry? Update 1: Registrar Registry Manager 6.50 from Resplendence Software Projects, free lite edition meets the two requirements listed below. Direct download URL (2.7 MB). Search can also be restricted to a particular branch in the registry. However exporting and sorting on columns in the search window is disabled in the lite version (and there may be other limitations). I haven't yet evaluated the other candidates. In particular I would like to be able to batch search instead of having to step through with F3. And a go to function that will open a particular registry key, e.g. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer, instead of having to go through from the top, Platform: Windows XP.

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  • Team Foundation Server Setup/Access

    - by Angel Brighteyes
    What I need: A TFS 2010 Setup that allows 2 application developers to access the TFS from remote locations. How it is setup: Server 2008 Standard 2g Ram 300g HD space SharePoint Server 2007, using SQL Server 2005 SQL Server 2008 Standard Team Foundation Server 2010 IIS 7 Sharepoint Bindings: TFS.DynAccount.Me:80; TFS:80 TFS Bindings: TFS.DynAccount.Me:8080; TFS:8080 Using DynDNS service to account for the dynamic ip address being used, this is a requirement for the moment until I can get a better isp package. Access using Local Accounts Server is not setup on a domain, or as a domain. Consequently I did not setup AD services. Problem: When logged into TFS using my credentials TFS\AdminUser through the DynDNS account TFS.DynAccount.Me I recieve the 'Red X of Death' on the Documents and Reports folder. When logged into the TFS through the local peer to peer network using the same credentials TFS\AdminUser I do not receive the 'Red X of Death' problem. Further Troubleshooting: When users 'Right Click' the 'TeamProject1' Click 'Show Project Portal' it tries to take them to http://TFS:8080 instead of http://TFS.DynAccount.Me:8080, which doing further research I am assuming that it is because team foundation server was setup with a local name of TFS instead of 'TFS.DynAccount.Me' as specified here in Visual Studio Magazines: The Red X of Death. Users can Access the Team Portal for SharePoint via http://TFS.DynAccount.Me/TeamCollection/TeamProject so it is not like we are dead in the water or anything. However, as most employees/staff are prone to do, they have expressed a great distaste for having to do it this way and just be patient until the current project is finished since we are under a very strict deadline. Is there a way to set this up differently, or change some settings someplace, reinstall it, point a CName record for our domain website to the DynAccount (e.g. TFS.OurDomain.com points to TFS.DynAccount.Me, which consequently does allow access to the http site without issues), or something. I really don't feel like after all the time and effort I have spent into, first the cost, second the bloody install, third learning SharePoint well enough, fourth the hours into days spent on this, fifth more troubleshooting, sixth employee headaches to just let it lay where it is at. I figure in my spare/off time I would keep trying to get this to work. So I really appreciate any help any one can give me. I know this is probably something really stupid simple that I will 'Face Palm' over, but at the moment the stress and frustration just has me beat. Thank you again, this community has always been a great help.

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  • How to optimize my PageRank calculation?

    - by asmaier
    In the book Programming Collective Intelligence I found the following function to compute the PageRank: def calculatepagerank(self,iterations=20): # clear out the current PageRank tables self.con.execute("drop table if exists pagerank") self.con.execute("create table pagerank(urlid primary key,score)") self.con.execute("create index prankidx on pagerank(urlid)") # initialize every url with a PageRank of 1.0 self.con.execute("insert into pagerank select rowid,1.0 from urllist") self.dbcommit() for i in range(iterations): print "Iteration %d" % i for (urlid,) in self.con.execute("select rowid from urllist"): pr=0.15 # Loop through all the pages that link to this one for (linker,) in self.con.execute("select distinct fromid from link where toid=%d" % urlid): # Get the PageRank of the linker linkingpr=self.con.execute("select score from pagerank where urlid=%d" % linker).fetchone()[0] # Get the total number of links from the linker linkingcount=self.con.execute("select count(*) from link where fromid=%d" % linker).fetchone()[0] pr+=0.85*(linkingpr/linkingcount) self.con.execute("update pagerank set score=%f where urlid=%d" % (pr,urlid)) self.dbcommit() However, this function is very slow, because of all the SQL queries in every iteration >>> import cProfile >>> cProfile.run("crawler.calculatepagerank()") 2262510 function calls in 136.006 CPU seconds Ordered by: standard name ncalls tottime percall cumtime percall filename:lineno(function) 1 0.000 0.000 136.006 136.006 <string>:1(<module>) 1 20.826 20.826 136.006 136.006 searchengine.py:179(calculatepagerank) 21 0.000 0.000 0.528 0.025 searchengine.py:27(dbcommit) 21 0.528 0.025 0.528 0.025 {method 'commit' of 'sqlite3.Connecti 1 0.000 0.000 0.000 0.000 {method 'disable' of '_lsprof.Profiler 1339864 112.602 0.000 112.602 0.000 {method 'execute' of 'sqlite3.Connec 922600 2.050 0.000 2.050 0.000 {method 'fetchone' of 'sqlite3.Cursor' 1 0.000 0.000 0.000 0.000 {range} So I optimized the function and came up with this: def calculatepagerank2(self,iterations=20): # clear out the current PageRank tables self.con.execute("drop table if exists pagerank") self.con.execute("create table pagerank(urlid primary key,score)") self.con.execute("create index prankidx on pagerank(urlid)") # initialize every url with a PageRank of 1.0 self.con.execute("insert into pagerank select rowid,1.0 from urllist") self.dbcommit() inlinks={} numoutlinks={} pagerank={} for (urlid,) in self.con.execute("select rowid from urllist"): inlinks[urlid]=[] numoutlinks[urlid]=0 # Initialize pagerank vector with 1.0 pagerank[urlid]=1.0 # Loop through all the pages that link to this one for (inlink,) in self.con.execute("select distinct fromid from link where toid=%d" % urlid): inlinks[urlid].append(inlink) # get number of outgoing links from a page numoutlinks[urlid]=self.con.execute("select count(*) from link where fromid=%d" % urlid).fetchone()[0] for i in range(iterations): print "Iteration %d" % i for urlid in pagerank: pr=0.15 for link in inlinks[urlid]: linkpr=pagerank[link] linkcount=numoutlinks[link] pr+=0.85*(linkpr/linkcount) pagerank[urlid]=pr for urlid in pagerank: self.con.execute("update pagerank set score=%f where urlid=%d" % (pagerank[urlid],urlid)) self.dbcommit() This function is 20 times faster (but uses a lot more memory for all the temporary dictionaries) because it avoids the unnecessary SQL queries in every iteration: >>> cProfile.run("crawler.calculatepagerank2()") 64802 function calls in 6.950 CPU seconds Ordered by: standard name ncalls tottime percall cumtime percall filename:lineno(function) 1 0.004 0.004 6.950 6.950 <string>:1(<module>) 1 1.004 1.004 6.946 6.946 searchengine.py:207(calculatepagerank2 2 0.000 0.000 0.104 0.052 searchengine.py:27(dbcommit) 23065 0.012 0.000 0.012 0.000 {meth 'append' of 'list' objects} 2 0.104 0.052 0.104 0.052 {meth 'commit' of 'sqlite3.Connection 1 0.000 0.000 0.000 0.000 {meth 'disable' of '_lsprof.Profiler' 31298 5.809 0.000 5.809 0.000 {meth 'execute' of 'sqlite3.Connectio 10431 0.018 0.000 0.018 0.000 {method 'fetchone' of 'sqlite3.Cursor' 1 0.000 0.000 0.000 0.000 {range} But is it possible to further reduce the number of SQL queries to speed up the function even more?

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  • Mixing Windows and Forms Authentication in ASP.NET MVC

    - by Chris Meek
    I'm currently trying to set up a website that uses both windows authentication and forms authentication. I am using ASP.NET MVC and both IIS6 and 7 need to be supported. How would I go about letting known AD users into the app (their AD id is stored against their user record in the application database) and directing everyone else to a standard username/password page.

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  • Is there a library or other way to do 128-bit math operations?

    - by samoz
    I am writing a cryptography application and need to work with 128 bit numbers. In addition to standard add, subtract, multiply, divide, and comparisons, I also need a power and modulo function as well. Does anyone know of a library or other implementation that can do this? If not 128-bit, is there a 64-bit option available?

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  • Using the WinForms web browser control

    - by Khou
    Using the standard .NET web browser control how do you... 1)Auto POST (ie submit) a form 2) Detect form has been posted and the browser has been landed on the specified page (this is to check that the user has logged in) 3) detect form input value on a change event

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  • 500 - Internal server error on IIs 7.5 R2

    - by StealthRT
    Hey all, i have a windows 2008 Web Edition R2 VPS and i seem to be having problems with it pointing to my domain name. I get this error when i visit my web address: Server Error 500 - Internal server error. There is a problem with the resource you are looking for, and it cannot be displayed. I'm sure theres a configuration problem somewhere but i am currently unable to find it. And i'm also new at the windows server so any step-by-step help would be greatly appreciated! David

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  • Xcode debugger stops with "EXC_BAD_ACCESS" - bug in my code or in Xcode?

    - by Substance G
    Hi, I got this error just one time (non-repeatable) while running my Objective-C & C++ program with the Xcode debugger: Program received signal: “EXC_BAD_ACCESS”. Xcode could not locate source file: sweep.c (line: 1026) kill quit I don't have any references to any "sweep.c" in my code, so I'm thinking maybe it's a Xcode/GDB error. Anything I can do to further investigate this? Am using standard Xcode 3.2.2 (uses GNU gdb 6.3.50-20050815 (Apple version gdb-1460)) on OS X 10.6.3

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  • weblogic 10.3 custom authenticator

    - by hbagchi
    we are migrating weblogic from 8.1 to 10.3. We had custom authenticator provider. Is there any standard way to migrate custom authenticator from 8.1 to 10.3? In fact, I could not find the wlManagement.jar in 10.3. I did find a wlManagement.jar file but it only contains .java files, no .class files. Please advise.

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  • Lucene search and underscores

    - by Matt
    When I use Luke to search my Lucene index using a standard analyzer, I can see the field I am searchng for contains values of the form MY_VALUE. When I search for field:"MY_VALUE" however, the query is parsed as field:"my value" Is there a simple way to escape the underscore (_) character so that it will search for it?

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  • Software tools to automatically decrypt a file, whose encryption algorithm (and/or encryption keys)

    - by Andrew
    I have an idea for encryption that I could program fairly easily to encrypt some local text file. Given that my approach is novel, and does not use any of the industry standard encryption techniques, would I be able to test the strength of my encryption using 'cracker' apps or suchlike? Or do all those tools rely on advanced knowledge of the encryption process (or intercepted 'keys'), meaning I'd have to build my own cracker for testing?

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  • Windows service and mingw

    - by Vasiliy Stavenko
    Is there possibility to compile windows service using only mingw c++ compiler and library? I assume that it is possible to use compiler with Visual Studio standard library and means, but want to do to this almost fully opensourced. Any experience?

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  • Is there a C# library that will perform the Excel NORMINV function?

    - by Portman
    I'm running some Monte Carlo simulations and making extensive use of the Excel function NORM.INV using Office Interrop. This functions takes three arguments (probability, average, standard deviation) and returns the inverse of the cumulative distribution. I'd like to move my code into a web app, but that will require installing Excel on the server. Does anybody know of a C# statistics library that has an equivalent function to NORM.INV?

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  • How to rate-limit a pipe under linux ?

    - by Frédéric Grosshans
    Is there a filter which I could use to rate-limit a pipe on linux? If this exists, let call it rate-limit, I want to be able to type in a terminal something like cat /dev/urandom | rate-limit 3 -k | foo in order to send a a stream of random bytes to foo's standard input at a rate (lower than) 3 kbytes/s.

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  • std::iostream link error vs2010 rc1

    - by Martin Beckett
    I'm converting a project from vs2008 to vs2010 and getting linker errors for std:ifstream/ofstream error LNK2001: unresolved external symbol "__declspec(dllimport) public: bool __thiscall std::basic_ofstream<char,struct std::char_traits<char> >::is_open(void)const " (__imp_?is_open@?$basic_ofstream@DU?$char_traits@D@std@@@std@@QBE_NXZ) Building static (/MT) or dll (/MD) with unicode or standard and release/debug gives the same error. Manually adding libcpmtd.lib (static) or msvcprtd.lib (dll) to the linker doesn't help. Has anyone else seen this?

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