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  • iPhone: fast hash function for storing web images (url) as files (hashed filenames)

    - by Stefan Klumpp
    What is a fast hash function available for the iPhone to hash web urls (images)? I'd like to store the cached web image as a file with a hash as the filename, because I suppose the raw web url could contain strange characters that could cause problems on the file system. The hash function doesn't need to be cryptographic, but it definitely needs to be fast. Example: Input: http://www.calumetphoto.com/files/iccprofiles/icc-test-image.jpg Output: 3573ed9c4d3a5b093355b2d8a1468509 This was done by using MD5(), but since I don't know much about that topic I don't know if it is overkill (- slow).

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  • Advice needed: What tech expertise do I need to accomplish my goal?

    - by quaternion
    I have a business plan & money to hire a developer - the essentials involve simple online games for children (played via traditional computer over the internet) such that their scores are uploaded to a database that can be viewed via a nice portal. What I don't know is: what technologies I would want my developer to know (the only somewhat unusual requirement I have is that the games have relatively accurate timing of keypresses/mouse presses) how much I should expect to pay (in general, what is the appropriate range) how many hours a program of the complexity of a simple tower defense -type game should take to develop (to be clear, the idea is not to implement TD, but rather other games of similar complexity) whether I should go with capable acquaintances, some online kind of online web-dev bidding site, or just try to find a capable undergraduate at the local university who I can wow with his/her first big paycheck, how I should communicate the software's specifications to my hired developer... Is there a standard I should be using? whether I should hire a webdev consultant for a few hours to help me answer these questions, instead of asking stackoverflow Thanks for any advice!

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  • Auto Increment feature of SQL Server

    - by Rahul Tripathi
    I have created a table named as ABC. It has three columns which are as follows:- The column number_pk (int) is the primary key of my table in which I have made the auto increment feature on for that column. Now I have deleted two rows from that table say Number_pk= 5 and Number_pk =6. The table which I get now is like this:- Now if I again enter two new rows in this table with the same value I get the two new Number_pk starting from 7 and 8 i.e, My question is that what is the logic behind this since I have deleted the two rows from the table. I know that a simple answer is because I have set the auto increment on for the primary key of my table. But I want to know is there any way that I can insert the two new entries starting from the last Number_pk without changing the design of my table? And how the SQL Server manage this record since I have deleted the rows from the database??

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  • Using excel import wizard through code?

    - by baron
    I am creating a Generate Report button for some data in my application. The report will just generate a CSV file, which I then automatically launch in excel. Problem is with one of the data fields, is text and has leading zeroes (which I need to keep). When the file is automatically opened in excel, excel automatically trims these. Is there anyway I can get it so that it opens with the data in the format I want it. I know you achieve this normally by opening the CSV file from within excel and can do the import wizard. So one potential solution would be to auto open the import wizard when the app launches this file. I don't know if this is possible. Thanks for reading.

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  • Modify strings in Rails?

    - by Daniel O'Connor
    Hey everyone, So I'm new to Rails (teaching myself as a senior project in high school), and I'm trying to figure out how to modify these strings. Let's say someone writes the following string in a form: "you know you are a geek when" How can I automatically change it to this: "You know you are a geek when..."? I need Rails to check the case of the first letter and check for the three dots then modify the string as necessary. I've looked here, but I can't find anything that would work. Thanks a lot!

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  • Gtk+ vs Qt language bindings

    - by Adam Smith
    Put shortly: For those familiar with language bindings in Qt and Gtk+. E.g. python and ruby. Are there any quality or capability difference? More background: I know C++ and Qt very well. Minimal experience with Gtk+. I know C++ is not ideal for language bindings due to the lack of a well defined ABI (application binary interface). I also read that Gtk+ was designed to be bound to other languages. So I wonder how this manifets itself in practice. Are the Gtk+ bindings better maintained or work better in some way than their Qt counterparts? I am presently quite interested in the Go language, and they have started developing Gtk+ bindings. However C++ bindings is far away. It makes me wonder whether learning Gtk+ is worth it.

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  • How to make full-screened MacOSX bundle killable?

    - by anon
    Exposition: I am writing an GLFW app on MacOSX. The app is a Mac bundle. I want my app to run in fullscreen mode (easy, use GLFW_FULLSCREEN). Problem is .. my code is still buggy, and I do not know how to kill a full-screened app that infinite loops (i.e. if the exit(0); is not called in the program; I don't know how to force kill it). Question is: how can I set up a MacOSX Glfw Bundle so taht I can force-kill it when it infinite loops? Thanks!

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  • How to display the properties of a Scheduled Task?

    - by TooFat
    I have C# app that uses a Form to set a bunch of settings. Those settings can be read by a Console App so it can run via the built in Windows Task Scheduler. I would like to be able to simply open up a scheduled task as if I had just opened it from the gui in Windows so the user can set all the settings for the scheduled task. I know I can use a library like http://www.codeproject.com/KB/cs/tsnewlib.aspx but I would rather not have to recreate all the options in a WinForm when everything is already available in Windows. Does anyone know how I can programattically display the built in Windows Task Scheduler from C#?

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  • Conditionally execute a task after building a solution with MSBuild + TFS

    - by SoMoS
    Hello, I'm using MSBuild with TFS and I have to build 4 solutions. When the compilation is done I should launch upon to 4 different Exec tasks depending on wherever the compilation was successful or not. I know how to do that with MSBuild alone using targets with conditions using the var $(BuildBreak) because I can do build solution - check result - exec task - build ... but I don't know how to do that with the TFS extensions ... any help will be very appreciated. Thanks mates.

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  • best analogy to explain free software floss to non geeks

    - by opensas
    How do you explain free libre open source software to a computer illiterate guy? Two well known analogies I've often heard are: free software as a meal recipe, a set of instructions for you to inspect, learn, put into practice, and improve... versus a canned meal that you can only swallow without even knowing what you're eating... and the other is comparing privative software to a car that you aren't allowed to open it's trunk to see inside in case anything goes wrong... I'd like to know what other analogies you know that might help us explain free software to non geeks saludos sas

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  • How to Look Up Email by Full Name in Active Directory?

    - by Danny
    I want to search for a user's email by using Active Directory. Available is the user's full name (ex. "John Doe" for the email with an email "[email protected]"). From what I've searched, this comes close to what I'm looking to do -- except that the Filter is set to "SAMAccountName", which is not what I have. Unless I'm misunderstanding, I just need to pick the right attribute and toss in the full name name in the same way. Unfortunately, I don't know what this attribute is, apparently no one has had to ask about searching for information in this manner, and that is a pretty big list (msdn * microsoft * com/en-us/library/ms675090(v=VS.85) * aspx, stackoverflow didn't let me link 2 hyperlinks because I don't have 10 rep) of attributes. Does anyone know how to obtain the user's email address through an Active Directory lookup by using the user's full name?

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  • How to assign permissions for Copy/Paste on windows

    - by jalchr
    Well, as everyone knows there is no way you can assign permissions for Copy/Paste of files on windows platform. I need to control the copy process from a central file server, in a way that helps me know: which user performed the copy Which files were copied where did he pasted them Total size of data copied Time of copy operation If user exceeds the allowed "Copy-Limit", a dialog box requests him to enter administrative credentials or deny him (as it would be configured) Store all this data in a file for later review or send by email. I need to collect this data by putting a utility program on the server itself, without any other installation on client computers. I know about monitoring the Clipboard, but which clipboard would it be? the user's clipboard or the server's clipboard ? And what about drag-drop operation, which doesn't even pass through the clipboard? Any knowledge of whether SystemFileWatcher is useful in such case ? Any ideas ?

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  • Does Eclipse Ganymede have a mouse-click bug in the Navigator view?

    - by Brian Deacon
    I've had to downgrade from Galileo to Ganymede in order to use the version of the FlexBuilder plugin that we are licensed for. Since the downgrade, I have several times accidentally dragged files or entire folders from one part of my project into another (or even into another project). I blamed this on fatfingers the first couple times, but I just now watched it do it to me on what I definitely know to have been a single left click on the folder that the file ended up moving to. Does anybody know if this is a known issue with Ganymede?

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  • deploying vb.net app with database on server

    - by vbNewbie
    I have an application that accesses a sql server 2008 database. The server and database is stored on my local harddrive and I would like to learn to scale this up to having multiple users in our office access the application which I will i deploy on a server. For now the database will stay on my pc until I am ready to put it on a dedicated server for myself but for now how do I allow the application still to access my database. Here is my current connection string: <add key="ConnectionString" value="Data Source=.;Initial Catalog=SearchEngine;User ID=sa;Password=pss;Trusted_Connection=False;" /> Now I know how to deploy a general vb.net application but what I dont know is what to do with the database. Please help with any advice

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  • 2 Runtime Packages: how can I use a unit from each other? (Delphi)

    - by Christian Almeida
    Hi, Lets assume we have 2 runtime packages, with 1 form in each one; Pkg1 -> Unit1 (frm1) Pkg2 -> Unit2 (frm2) Now I want that they "know" each other. When pkg1 needs to know Unit2, we have to "require" Pkg2 in Pkg1. So now I can do a "uses" Unit2 and then do frm2.Show in Unit1 code. But when I do the same thing in Pkg2 (set to require Pkg1), it does not compile, informing that Pgk2 already have a unit name Unit2 (I think is because Pkg1 is requiring Pkg2). So, how to: in Unit1 do a "uses Unit2" and in Unit2 do a "uses Unit1"? Thanks in advance.

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  • Uncheck all checkboxes in repeater except checkbox being checked

    - by Chris Laythorpe
    I know my question reads a bit like that 'how much wood can a woodchuck chuck' line, please excuse that... I have a repeater with checkboxes. There are numerous rows in this repeater - I never know how many - I want only one checkbox checked at any time. If the user changes the checked checkbox, any pre-existing checks are unchecked therefore maintaining a single checked checkbox. I am using VB, but comfortable to port any C#. I want to use JQuery. I have been looking on Google, but only ever seem to find ALL checked, ALL unchecked systems. Any suggestions?

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  • Pure Java open-source libraries for portfolio selection (= constrained, non-linear optimization)?

    - by __roland__
    Does anyone know or has experience with a pure Java library to select portfolios or do some similar kinds of quadratic programming with constraints? There seems to be a lot of tools, as already discussed elsewhere - but what I would like to use is a pure Java implementation. Since I want to call the library from within another open-source software with a BSD-ish license I would prefer LGPL over GPL. Any help is appreciated. If you don't know such libraries, which is the most simple algorithm you would suggest to implement? It has to cope with an inequality constraint (all x_i = 0) and an equality constraint (sum of all x_i = 1).

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  • PHP 5.2 Function needed for GENERIC sorting of a recordset array

    - by donbriggs
    Somebody must have come up with a solution for this by now. We are using PHP 5.2. (Don't ask me why.) I wrote a PHP class to display a recordset as an HTML table/datagrid, and I wish to expand it so that we can sort the datagrid by whichever column the user selects. In the below example data, we may need to sort the recordset array by Name, Shirt, Assign, or Age fields. I will take care of the display part, I just need help with sorting the data array. As usual, I query a database to get a result, iterate throught he result, and put the records into an assciateiave array. So, we end up with an array of arrays. (See below.) I need to be able to sort by any column in the dataset. However, I will not know the column names at design time, nor will I know if the colums will be string or numeric values. I have seen a ton of solutions to this, but I have not seen a GOOD and GENERIC solution Can somebody please suggest a way that I can sort the recordset array that is GENERIC, and will work on any recordset? Again, I will not know the fields names or datatypes at design time. The array presented below is ONLY an example. UPDATE: Yes, I would love to have the database do the sorting, but that is just not going to happen. The queries that we are running are very complex. (I am not really querying a table of Star Trek characters.) They include joins, limits, and complex WHERE clauses. Writing a function to pick apart the SQL statement to add an ORDER BY is really not an option. Besides, sometimes we already have the array that is a result of the query, rather than the ability to run a new query. Array ( [0] => Array ( [name] => Kirk [shrit] => Gold [assign] => Bridge ) [1] => Array ( [name] => Spock [shrit] => Blue [assign] => Bridge ) [2] => Array ( [name] => Uhura [shrit] => Red [assign] => Bridge ) [3] => Array ( [name] => Scotty [shrit] => Red [assign] => Engineering ) [4] => Array ( [name] => McCoy [shrit] => Blue [assign] => Sick Bay ) )

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