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• Differences in the different ways to make concurrent programs

  - by dotnetdev

  Hi, What is the difference between: Starting a new thread Using TPL Using BackgroundWorker All of these create concurrency but what are the low-level differences between these? Do all 3 make threads anyway? Thanks

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• Is there a way to get direct_to_template to pass RequestContext in django?

  - by BigJason

  I have found myself writing the same view over and over. It is basically this: def home_index(request): return render_to_response('home/index.html', RequestContext(request)) To keep with the dry principal, I would like to utilize a generic view. I have seen direct_to_template, but it passes an empty context. So how can I use a generic view and still get the power of RequestContext?

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• how works applications which blocks web sites?

  - by noisy

  I know only one low-level way of blocking websites - hosts file. However, it is obvious that main stream programs has some other way of achieving this. I have an idea for new model of this kind of program, but without possibility of blocking sites it is useless :(

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• turning off sleep mode on kindle?

  - by pfunc

  I'm just getting into kindle development, and I want to know if it is possible to turn off kindle's sleep mode? Or is there a way to wake it up (or a way to program it to wake up) by pushing the buttons on the front, rather than using the power button? Not looking for anything to in-depth here, just point me in the right direction or let me know if it is possible.

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• Can I change the vertical position of a strike-through on a website?

  - by jeffkee

  I'm applying the strikeout tag <s>$5,000,000</s> But the line is too low.. .it's about 1/4 from the bottom rather than through the middle. Any way I can modify this so it goes a bit more through the middle?

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• Looking for a fast hash-function.

  - by Julian

  Hello, I'm looking for a special hash-function. Let's say I have a large list of strings, if I order them by their hash-values they should be ordered quasi randomly. The most important point is: it must be super fast. I've tried md5 and sha1 and they're using to much cpu power. Clashes are not a problem. I'm using javascript, so it shouldn't be too complicated to implement.

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• Which version of .NET is available for Xbox 360?

  - by Rosarch

  I tried to look this up on MSDN, but couldn't get a straight answer. It says: The .NET Compact Framework for Xbox 360 implements a subset of the .NET Compact Framework, and has been optimized to take advantage of and expose the power of the Xbox 360. What exactly is the subset? Which version of the framework? 3.5? 2.0?

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• How to utilize POWERVR™ SGX Series5 GPU from iPhone OS 4.0?

  - by Roman Kagan

  POWERVR™ SGX Series5 GPU is embedded in Apple iPhone and I wonder how to utilize it (i.e. use it as low power GP-GPU) from iPhone OS 4.0?

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• Could I ever want to access the address zero?

  - by Joel

  The constant 0 is used as the null pointer in C and C++. But as in http://stackoverflow.com/questions/2389251/pointer-to-a-specific-fixed-address there seems to be some possible use of assigning fixed addresses. Is there ever any conceivable need, in any system, for whatever low level task, for accessing the address 0? If there is, how is that solved with 0 being the null pointer and all? If not, what makes it certain that there is not such a need?

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• Should a data warehouse developer know Powershell scripting?

  - by AEngelsrud

  I am a SQL Server (2005 & 2008) data warehouse developer (SSIS, SSAS, SSRS, SQL) and I am wondering if it would be worth the effort and time to learn Powershell scripting. Are there applicable uses from a development perspective? I understand that from a DBA view there is considerable power in Powershell for administration - does any of this translate to useful commands for a developer? Thanks!

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• In IntelliJ on OS X, how do you clear out all global setting info, licensing etc. (external to any p

  - by kalak451

  I am having some low level issues with IntelliJ on my mac, I really want to just zero everything out and start over. But even after removing the application and re-installing it, IntelliJ still remembers things like what the last project was, what licensing key to use etc. Where is this information stored? And what is the best way to clear it out?

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• What are the hot languages of 2009?

  - by geowa4

  It is well-accepted that we should all learn something new every six months. But what should top the list for 2009? What new things should we learn this year that appear to have real staying power? (Answers do not have to be limited to languages.)

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• What are Erlang processes behind the scenes?

  - by Roger Alsing

  I've got very limited knowledge about Erlang, but as far as I understand, it can spawn "processes" with a very low cost. So I wonder, what are those "processes" behind the scenes? Are they Fibers? Threads? Continuations?

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• What were the hot languages of 2009?

  - by geowa4

  It is well-accepted that we should all learn something new every six months. But what should should have topped the list for 2009? What new things should we learn have learned this year that appear to have real staying power? (Answers do not have to be limited to languages.)

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• android bluetooth

  - by yoavstr

  can someone explain to me the concept behind using bluetooth my project in my studies is to make an android app using bluetooth, SQLLIGHT and google app the app itself is a very easy one but i just dont get the tools i need to use : how does the bluetooth works? is there a simple example ? the concept behind android GUI (i allready nade one but i think i am not fully understood his power)? note : i am using v 2.1

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• Understanding the hardware of printf

  - by tipu

  I was wondering if there was any resources available online that explains what happens with something, like printf of C, that explains what's going on in the very low level (BIOS/kernel calls)

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• What's the big deal with brute force on hashes like MD5

  - by Jan Kuboschek

  I just spent some time reading http://stackoverflow.com/questions/2768248/is-md5-really-that-bad (I highly recommend!). In it, it talks about hash collisions. Maybe I'm missing something here, but can't you just encrypt your password using, say, MD5 and then, say, SHA-1 (or any other, doesn't matter.) Wouldn't this increase the processing power required to brute-force the hash and reduce the possibility of collision?

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• Google Visualization Spacing

  - by Mike

  I have a chart similar to the one below using the Google Visualization API. My problem is that on the right side of where the key is for this chart(where it says low, medium, high) there is too much white space. How can I get rid of this white space?

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• Is there any way for a win2k8 scheduled task to have normal priority IO?

  - by Jason Mathison

  I have a scheduled task that is very IO intensive (deleting hundreds of thousands of files). For disk space reasons, this job has to be performed reasonably quickly. On win2k8, scheduled tasks always have a low IO priority. Raising the priority of the process did not change the IO priority. Is there any way to get a scheduled task to have a normal IO priority?

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• How to prevent components from rendering in Flex

  - by Tam

  Is there a way to prevent a component from rendering in Flex (to save memory or processing power)? I tried doing something like: <components:AddNewItemGroup id="addItemGroup" visible="false" enabled="false" horizontalCenter="0" bottom="0" /> I noticed that the component gets rendered but it's just not visible or functional.

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• Entity framework: Need a easy going, clean database migration solution.

  - by user469652

  I'm using entity framework model first development, and I need to do database migration often, The EF database generation power pack doesn't help a lot, because that data migration never worked here. The database migration here I mean, change the model, and then I can update the existing database from the model, but creating a new one. Is there any free of charge tool here invented here yet? Or would this going to be a new feature of next EF release? PS: I love django's ORM.

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• Joomla: comments for own componet

  - by vitperov

  I have written my own Jommla component for displaying particular information (for example car info: engine power, year and etc.). Now I want to add a comments to my component. Implementing comments by my own is too hard and it's not very safe. Maybe someone had and experience integrating some existing joomla component for an own component? Update: Maybe I can copy-paste code of some existing joomla comments component in my own component? Does somebody tried to do this?

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• crt0.o and crt1.o -- What's the difference?

  - by Earlz

  Hello, recently I've been trying to debug some low level work and I could not find the crt0.S for the compiler(avr-gcc) but I did find a crt1.S (and the same with the corresponding .o files) What is the difference between these two files? Is crt1 something completely different or what? They both seem to have to do with something for bootstrapping(setting up stack frame and such), but why the distinction?

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• Is there an Javascript event for when a the page is pushed into the background?

  - by Georg

  I remember having used such an event, but I can't remember the name. The specific task I'm trying to accomplish is to stop my slideshow when the browser window isn't in the foreground. I'm fading the different images with jQuery, which uses quite some CPU power. Is there an event that tells me, when the user switches to another application / page.

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• C++ open source projects

  - by Chaoz

  Hello, I'm looking for a suitable open source project to work on in C++. It really can be anything. My background is in gaming, on both PC and consoles; but I'd prefer to work on something low latency or real time. I'm also interested in Math stuff. Do any of you guys have suggestions?

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