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  • how to know if a video file can be played on a dvd player

    - by user23950
    Is there an application that can emulate a dvd player? I've converted a .mp4 video using allok video converter. And choose the output format to be xVid(.avi)<--that is exactly what is written on the application. I don't want to waste a blank dvd and try if it really can be played. So if you have tried this before please tell me if it works. And I have tried burning .avi files and it works because they are genuine avi files which I did not convert

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  • How to know that my IP is invalid

    - by PeterMmm
    I have a script running that will start up an interface with a new IP. If the script comes up with an IP that is already in use i am in trouble. Is it possible that the script set up the new Ip, detects that this IP is already in use and then check the next one, until it finds an ip that works ? B=192.168.1. I=1 while [ "$I" != "256" ] do ifconfig eth0:1 $B.$I # check here that IP is Ok ! let "I=I+1" done

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  • Amortization Schedule in Excel - Know how much interest will be saved by large payment

    - by hubbas
    I have a really nice Amortization Schedule built in Excel using the steps from this page: http://www.wikihow.com/Prepare-Amortization-Schedule-in-Excel It works really nicely, but I am planning to make some large payments and I would love to calculate how much interest I will save, over the life of the loan, for making these larger payment. E.g., if I pay $10k for one payment I will save $4000 in interest over the life of the loan, etc. Is there a way to calculate this?

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  • Actionscript: How Can I Know When The Source Property Of An Image Is Completely Updated

    - by Joshua
    var I:Image=new Image(); I.source='C:\\Abc.png'; var H:int=I.height; H is always Zero! I am presuming this is because the image hasn't finished reading the png file off the disk yet. What event can I monitor to know when it's width and height will have the right values? The 'Complete' event only seems to work for DOWNLOADED images. The 'Render' event happens EVERY FRAME. The (undocumented?) 'sourceChanged', happens as soon as source changes, and has the same problem! What event do I watch that will let me know when the image's width and height properties will have valid values? Or is there some Synchronous version of I.source='xxx.png', that I don't know about? P.S. Yes, I know I shouldn't use "C:\" in an Air Program. This was just for illustrative purposes, so that you won't suggest I use "Complete", which never even seems to fire when the file indicated by source is local.

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  • What should every programmer know?

    - by Matt Lacey
    Regardless of programming language(s) or operating system(s) used or the environment they develop for, what should every programmer know? Some background: I'm interested in becoming the best programmer I can. As part of this process I'm trying to understand what I don't know and would benefit me a lot if I did. While there are loads of lists around along the lines of "n things every [insert programming language] developer should know", I have yet to find anything similar which isn't limited to a specific language. I also expect this information to be of interest and benefit to others.

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  • Math/numerical formula every computer programmer should know

    - by aaa
    This is a follow-up question to What should every programmer know and Is mathematics necessary. So the question is, as a computer programmer, what is the most important/useful mathematical or numerical formula that you use? By Formula I mean anything that involves less obvious manipulations, whenever binomial coefficients or bit hacks. I work with multidimensional arrays and various matrix representations. So for me most commonly used formulas are: A(i,j,k,..) = a[i + j*Dim0 + k*Dim0*Dim1 + ... to map indexes to one dimension ( which is basic address calculation which many people do not seem to know). And triangular number T(i) = (i*i + i)/2 which is related to binomial coefficients, used to calculate address in triangular matrixes and many other things. What is your workhorse formula that you think programmer should know?

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  • Git dirctet acyclic graph - children know their parents but not the other way around

    - by dayscott
    Git is implemented as a directed acyclic graph. Children know their parents but not the other way round. This makes sense because i can reach every commit only through a branch or a tag ( generally speaking through a reference). That's how i traverse the tree. What other reasons had the developers of Git to make "the children know their parents but not the other way around"?/ What are the key benefits of this?

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  • Which framework exceptions should every programmer know about ?

    - by Thibault Falise
    I've recently started a new project in C#, and, as I was coding some exception throw in a function, I figured out I didn't really know which exception I should use. Here are common exceptions that are often thrown in many programs : ArgumentException ArgumentNullException InvalidOperationException Are there any framework exceptions you often use in your programs ? Which exceptions should every .net programmer know about ? When do you use custom exception ?

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  • Are there any good books to learn C++ if you already know Java and C#

    - by JF LR
    Hi, I would like to know if you have any good books that teach C++ programming without repeating basic stuff. In fact, I already well know Java and C#. I also have a basic knowledge in C and assembly, so I understand a little bit pointer arithmetic, manual memory management and heap based allocation. I was looking at O'Reilly's C++ in a Nutshell and was also wondering if this book would be a good choice. Thank you

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  • How to know the formatting of Excel Cell

    - by Sathish
    Is it possible to figure out the Format of Excel cell i know there is .NumberFormat but it returns the formatting but not the type... basically i need to know if it is custom then it should return custom and if it is currency it should return Currency or any other datatype Please help me

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  • what to know in order running Activity in extern application

    - by rayman
    Hi, I wonder if it's possbile, and if it is, what i`am suppose to know, in order to run an Activity in some application, while i am calling it from another application. for example, now i am on Application A, and i want to run an Activity on Application B. what parameters do i need to know in order to do that? Thanks,

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  • What should every PHP programmer know ?

    - by Waseem
    I would to be a PHP/Mysql Programmer what is the technologies that i must know ? Like :- Frameworks IDEs Template Engines Ajax and Css Frameworks please tell me the minimum requirements that i must know , and tell me your favourite things in the previous list ? thanks

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  • What I need to know for writing a Camera Component

    - by Delphawi
    I want to write a component that uses 2 webcams (1 integrated in my laptop , the other is a USB webcam) What do I need to know (or have) to build a component to deal with the cameras (capture , record , movement recognition , and other image and video processing) ? and how ? (with C++ or Delphi) I just need to know the concepts and main techniques , any good resources or source codes would be great :) Thank you .

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  • need to know whether report is launched or not

    - by user313085
    i am developing web application.in that i creating report using crystal report. The crystal report gives report as pdf file. i need to know whether report is generated and launched or not. if not i will give alert to user ie "Report is not generated" if anybody know please reply me Thanks -Kotesh

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