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  • callback in android?

    - by androidbase Praveen
    in android application development, i frequently go through the word "CALLBACK" in many places. i want to know want it means to tell us technically. and how i can manage the callback of the applications. i would need a guidance to understand about it....

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  • What bug tracking software do you use?

    - by Thomas Owens
    I'm currently looking at Bugzilla and Trac, as they seem to be the most popular (and I'm hoping that also means if there are any problems, it will be easier to get help), but I'm curious what solutions you use or have used and what your thoughts are. I'm currently leaning toward Trac, as it's Wiki functionality can be used to support documentation. But that might not be a good enough reason to jump on Trac.

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  • JavaScript/HTML: How do I display an IMG with a set dimension and if the image is wider or taller th

    - by NickNick
    I have a bunch of images that are guaranteed to have: minimum width = 200px maximum width = 250px minimum height = 150px maximum height = 175px What I want to do is display a consist 200px by 150px rectangle of the image while maintaining scale (no stretching or shrinking). Which means, I might have some overflow. How can I display the image so that it keeps porpotions to the original image size, yet displayed inside a 200x150 px window and hiding any overflow?

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  • Generics : List<? extends Animal> is same as List<Animal>?

    - by peakit
    Hi, I am just trying to understand the extends keyword in Java Generics. List<? extends Animal> means we can stuff any object in the List which IS A Animal then won't the following also mean the same thing: List<Animal> Can someone help me know the difference between the above two? To me extends just sound redundant here. Thanks!

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  • Why did you decide "against" using Erlang?

    - by Zubair
    Have you actually "tried" (means programmed in, not just read an article on it) Erlang and decided against it for a project? If so, why? Also, if you have opted to go back to your old language, or to use another functional language like F#, Haskell, Clojure, Scala, or something else then this counts too, and state why.

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  • Integrating twitter pull request with another application

    - by jade
    i'm an absolute newbie to webapps, so please forgive if my question is quite naive or not upto the mark.i have been assigned a task to develop a web app which integrates the twitter pull request with another application using the particular application APIs.basically i dont know what it means.Can anyone explain what is intended to be done and if there is any example of such web apps if any,it will be most appreciated, so that i can get an idea of what is to be actually done.i'm planning to do this using ruby

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  • Windows Azure: Parallelization of the code

    - by veda
    I have some matrix multiplication operation. I want to parallelize the execution of those operations through multiple processors.. This can be done on high performance computing cluster using MPI (Message Passing Interface). Like wise, can I do some parallelization in the cloud using multiple worker roles. Is there any means for doing that.

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  • OpenGL ES Polygon with Normals rendering (Note the 'ES!')

    - by MarqueIV
    Ok... imagine I have a relatively simple solid that has six distinct normals but actually has close to 48 faces (8 faces per direction) and there are a LOT of shared vertices between faces. What's the most efficient way to render that in OpenGL? I know I can place the vertices in an array, then use an index array to render them, but I have to keep breaking my rendering steps down to change the normals (i.e. set normal 1... render 8 faces... set normal 2... render 8 faces, etc.) Because of that I have to maintain an array of index arrays... one for each normal! Not good! The other way I can do it is to use separate normal and vertex arrays (or even interleave them) but that means I need to have a one-to-one ratio for normals to vertices and that means the normals would be duplicated 8 times more than they need to be! On something with a spherical or even curved surface, every normal most likely is different, but for this, it really seems like a waste of memory. In a perfect world I'd like to have my vertex and normal arrays have different lengths, then when I go to draw my triangles or quads To specify the index to each array for that vertex. Now the OBJ file format lets you specify exactly that... a vertex array and a normal array of different lengths, then when you specify the face you are rendering, you specify a vertex and a normal index (as well as a UV coord if you are using textures too) which seems like the perfect solution! 48 vertices but only 8 normals, then pairs of indexes defining the shapes' faces. But I'm not sure how to render that in OpenGL ES (again, note the 'ES'.) Currently I have to 'denormalize' (sorry for the SQL pun there) the normals back to a 1-to-1 with the vertex array, then render. Just wastes memory to me. Anyone help? I hope I'm missing something very simple here. Mark

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  • Best Format for a Software Engineer's Resume

    - by Adam Haile
    I am looking for good, objective ideas and examples of a resume for a Software Engineer. By all means, post a link to your own resume if you are comfortable with doing so. Mostly I am looking at how it should be formatted and what kind of information should be included (and in what order on the resume.)

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  • keep keyboard open when deleting/inserting UITableView's cell (iphone)

    - by Jonathan
    I have a login form using a UITableView. One of the cells has a UISwitch which when on will delete the row above it and when off reinsert it. But the first cell automatically has the keyboard up when the cell is created (basically when the view loads) (by using [cell becomeFirstResponder];) Inserting/deleting any of the cells means that the keyboard animates out and then animates back in. I'd like to remove this so the keyboard stays up while rows are deleted/inserted.

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  • Database structure for versioning and multiple languages

    - by phobia
    How can I solve the issue of content existing in multiple versions and multiple languages? My current structure: Each content can only have one active version in each language, and that's how I'm curious on how to best solve. Right now I have a column of the contentversions table, which means for each change of active version I have to run a update and set active=false on all version and then a update to set active=true for the piece of content in question.

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  • How to get only USB devices not all the devices in the system

    - by new
    Grretings to all, I get devices list from the system. but i am not sure that if i want to get only the usb devices currently in the system means , What class i must specify in the below code ( DWORD Flags ) hDevInfo = SetupDiGetClassDevs(&GUID_DEVINTERFACE_USB_DEVICE, 0, // Enumerator 0, DIGCF_PRESENT | DIGCF_INTERFACEDEVICE );

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  • Cocoa: NSOpenPanel Threads

    - by Craig
    I am monitoring my application using Activity Monitor and whenever NSOpenPanel is called the application appears as having 9 threads and stays like that until the application is closed. Is there a way to release those threads?, Or am I simply misunderstanding what the threads number means?, surely it isn't a good thing to have them open for no reason. Any help would be appreciated

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  • Static variables in C and C++

    - by Naveen
    Is there any difference between a variable declared as static outside any function between C and C++. I read that static means file scope and the variables will not be accessible outside the file. I also read that in C, global variables are static . So does that mean that global variables in C can not be accessed in another file?

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  • How can c let a function declaration with any parameter type ?

    - by kamil çakir
    I forgot to write void parameter but it works the i put void it gives error it lets this: print(int size,int table[size][size]){ int i,j; printf("-------TABLE-------\n"); for(i = 0;i it says"previos implicit declaration was here " (means the call in main) void print(int size,int table[size][size]){ int i,j; printf("-------TABLE-------\n"); for(i = 0;i

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  • [Javascript] Prevent an element from being the target in a document mouseover

    - by Sander
    I'm building an firebug-like inspection tool for my page. When the mouse enters an element, the element should be highlighted. Now I'm creating an element which I position absolute on top of the target element, this however means the next mousemove event (which is bound to the document) will fire with the actual "highlight element" as the target. Is there a way to prevent the "highlight element" from being the target element in the mousemove event? The element already has a transparant background.

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  • Why are these two sql statements deadlocking? (Deadlock graph + details included).

    - by Pure.Krome
    Hi folks, I've got the following deadlock graph that describes two sql statements that are deadlocking each other. I'm just not sure how to analyse this and then fix up my sql code to prevent this from happening. Main deadlock graph Click here for a bigger image. Left side, details Click here for a bigger image. Right side, details Click here for a bigger image. What is the code doing? I'm reading in a number of files (eg. lets say 3, for this example). Each file contains different data BUT the same type of data. I then insert data into LogEntries table and then (if required) I insert or delete something from the ConnectedClients table. Here's my sql code. using (TransactionScope transactionScope = new TransactionScope()) { _logEntryRepository.InsertOrUpdate(logEntry); // Now, if this log entry was a NewConnection or an LostConnection, then we need to make sure we update the ConnectedClients. if (logEntry.EventType == EventType.NewConnection) { _connectedClientRepository.Insert(new ConnectedClient { LogEntryId = logEntry.LogEntryId }); } // A (PB) BanKick does _NOT_ register a lost connection .. so we need to make sure we handle those scenario's as a LostConnection. if (logEntry.EventType == EventType.LostConnection || logEntry.EventType == EventType.BanKick) { _connectedClientRepository.Delete(logEntry.ClientName, logEntry.ClientIpAndPort); } _unitOfWork.Commit(); transactionScope.Complete(); } Now each file has it's own UnitOfWork instance (which means it has it's own database connection, transaction and repository context). So i'm assuming this means there's 3 different connections to the db all happening at the same time. Finally, this is using Entity Framework as the repository, but please don't let that stop you from having a think about this problem. Using a profiling tool, the Isolation Level is Serializable. I've also tried ReadCommited and ReadUncommited, but they both error :- ReadCommited: same as above. Deadlock. ReadUncommited: different error. EF exception that says it expected some result back, but got nothing. I'm guessing this is the LogEntryId Identity (scope_identity) value that is expected but not retrieve because of the dirty read. Please help! PS. It's Sql Server 2008, btw.

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  • Ant: Create directory containing file if it doesn't already exist?

    - by Benny
    Basically, I get a path like "C:\test\subfolder1\subfolder2\subfolder3\myfile.txt", but it's possible that subfolders 1-3 don't exist already, which means I'd get an exception if I try to write to the file. Is there a way to create the directory structure the target file is in, either by using some task that creates the structure when it outputs to the file and then deleting the file, or by parsing the directory part of the path and using the mkdir task first? Any help is appreciated. Thanks, B.J.

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