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• << and >> in C++

  - by JacKeown

  I don't quite understand what this means...I'm just learning C++ from my very very very basic Python experience...and so this may be a very stupid question. My question is...say you have your classic "Hello World" program and you have the line: cout<<"Hello World!"<<endl; what does the << mean...because I was just looking at using input in C and saw that you'd do something like: int i; cini; and I noticed that it has instead of << and I've read that those are bitwise shifts...and I don't exactly understand what those are...but I think it might be different here...Help...Thanks in advance

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• Report Builder 3.0: Adding Matrices to Your Reports

  It is easy to create a basic matrix in Report Builder. However, it takes some practice in order to format and dispay the matrix exactly how you want it. There are a large number of options available to enhance the matrix and Robert Sheldon provides enough information to get you the point where you can experiment easily. Make working with SQL a breezeSQL Prompt 5.3 is the effortless way to write, edit, and explore SQL. It's packed with features such as code completion, script summaries, and SQL reformatting, that make working with SQL a breeze. Try it now.

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• How do I make a dialog box? [on hold]

  - by bill

  By dialog box I mean when player talks to someone, a box shows up with text on it. I haven't found much about this topic online, so I created a basic dialog box: //in dialog box i have only two methods public void createBox(int x, int y, int width, int height, String txt) { this.x = x; this.y = y; this.width = width; this.height = height; this.txt = txt; } //draw dialog box public void draw(Graphics2D g) { if (txt != null) { g.setColor(Color.red); g.drawRect(x,y,width,height); g.setColor(Color.black); g.fillRect(x, y, width, height); g.setColor(Color.white); g.drawString(txt, x + 10, y + 10); } } I wanted to now can I make this better?

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• Using XNA libraries in your Silverlight Windows Phone 7 applications

  I recently got an inquiry to my Microsoft Translator sample on if this would work with the Silverlight in the Windows Phone 7 SDK. I hadnt tried it before, so I created a sample Windows Phone 7 application and copied the code over. I used a basic UI to mock up the similarities: And then clicked the button. The text translated fine, but no audio. I didnt get any warnings that the WaveMSS code sample I was using wouldnt work. Then I remembered about XNA. NOTE: I actually think this is a bug...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• SQL Server SQLCMD Basics

  Sqlcmd makes many SQL Server tasks, such as automating test runs and maintenance tasks, easier and quicker. The sqlcmd command-line utility is valuable to any database developer or DBA as the prime means of executing batches of SQL Statements to SQL servers, and saving results to file. Rob Sheldon gives you the basic facts about this great utility. Get your SQL Server database under version control now!Version control is standard for applications, but databases haven’t caught up. So how can you bring database development up to speed? Why should you start? Find out…

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• How to install libdvdcss?

  - by skwd

  I'm relatively new to Ubuntu and I'm trying to figure out how to play DVDs. I've read through a lot of forums, and got to the one asking how to read encrypted DVDs. I was able to do the first step and installed libdvdread4, but when I got to the second step of installing libdvdcss, I got what amounted to error messages. This is the command I ran: sudo /usr/share/doc/libdvdread4/install-css.sh Is there something important that I should know? As in, probably something basic that I don't know because I'm new...?

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• Which app can I use for easily annotating pictures/screenshots?

  - by koushik

  Often I need to annotate (draw some arrows, lines, basic shapes like squares, ellipses etc and enter some text) on top of pictures (JPG, PNG images) and screenshots (again png images). I would also need to be able to crop, resize etc. I tried the Gimp but I could only enter text and perform all image transformations but couldn't find a way to draw boxes etc. I finally settled to Openoffice.org draw, but I know that isn't what I want, because in oodraw I need to insert my pic into a drawing and resize it (or the drawing) to fit and then go about making changes and finally export to png... Is there any image editor that allows adding shapes and text to jpg & png files and save the modified file in its place? If the tool can also have template collections (like dia does) for shapes that is an added bonus.

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• Looking for feedback on design pattern for simple 2D environment

  - by Le Mot Juiced

  I'm working in iOS. I am trying to make a very simple 2D environment where there are some basic shapes you can drag around with your finger. These shapes should interact in various ways when dropped on each other, or when single-tapped versus double-tapped, etc. I don't know the name for the design pattern I'm thinking of. Basically, you have a bunch of arrays named after attributes, such as "double-tappable" or "draggable" or "stackable". You assign these attributes to the shapes by putting the shapes in the arrays. So, if there's a double-tap event, the code gets the location of it, then iterates through the "double-tappable" array to see if any of its members are in that location. And so on: every interactive event causes a scan through the appropriate array or arrays. It seems like that should work, but I'm wondering if there's a better pattern for the purpose.

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• What do you use to create sprite graphics? [closed]

  - by SimpleRookie

  Possible Duplicate: What tools do you use for 2D art/sprite creation? What do you folks suggest for creating sprite graphics and sprite sheets? I fiddle with pixelformer and tilestudio. Pixelfromer has a kicken interface, it is quick and easy to make graphics, but a bit cumbersom if you want to make a spritemap. Tile Studio is a interesting mix or tiles and maps, but it is a bit buggy and basic. The Adobe series, just don't really seem to handle tiny graphics well. (there is a previous posting of this question existing, but it is a year old and I was hoping for further/updated input from the community)

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• New to Maven-- Creating Java EE Projects

  - by M.C.

  Greetings-- I've been developing Java EE web apps with Eclipse for about a year. My employer doesn't use Maven, but the more I read about it, the more convinced I am that Maven + Hudson will be greatly beneficial for us. First, though, I have to become comfortable with those technologies in my spare time, so that I can create a proof-of-concept. Right now, I'm still a Maven newbie. Is there a set of best practices for creating Java EE web apps with Maven? For example, I could create a project with a basic archetype and then add all of the necessary JARs by putting dependencies in the POM for the servlet container, EJB, EclipseLink, etc... That might work, but it might not be the best way to do it. I'd greatly appreciate any guidance that you could provide on this topic. Thank you very much!

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• How do I secure a Tomcat installation?

  - by spangeman

  I have installed tomcat on my Ubuntu Home 11.10 system and can successfully access the test page online after port forwarding on 8080 within my router. I have not made any other changes to the router, Ubuntu or the tomcat install, everything else has remained standard. I intend on using this to play around with Java Servlets and basic web development for my own personal use. What steps, if any, would you suggest I take to ensure this is secure? Should I change anything within the Tomcat configuration? This seemed like a good idea to limit access - http://www.seankilleen.com/2010/09/how-to-allow-only-specific-ip-addresses_30.html But I am open to any other recommendations.

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• Exclude PHP from output from WYSIWYG in CMS

  - by bytewalls

  I'm writing a basic CMS for one of my sites and have run into an issue where some pages need to dynamically serve PHP and JS, where as others are plain HTMl. I want there to be a setting which will allow this for the pages that need it and will load ACE editor instead of a different wysiwyg editor. The challenge here is that on the pages which I do not explicitly tell it there will be code, I want to reject any inputs that code. I can set it up to insert a for all pages without JS, but how can I keep php code from running?

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• Any good site that teaches C++?

  - by Shinmaru

  I am searching for any good site that teaches C++, that can explain most to all things about it(general) and has a decent active community. About Me: I am new to programming(knows nothing of it, so please bare with me), I have only learned(to a very basic form) LUA scripting Language, so yes I am your complete newbie. I got interested in programming, from scripting in LUA, so you can say it was my small stepping stone, One would basically take a course in college, but not everyone is well funded for that and I can't buy books for the same said reason(yes I'm somewhat poor, only money for essentials and bills), I'm not trying to get sympathy, just stating my conditions. and Please, something in between the lines of 'Programming for Dummies'(I'm not the brightest crayon in the box), I know this will not be easy, but your help will be most appreciated. I would learn for either Windows and/or Linux/Unix. I use both. Site(s) I know: Cplusplus.org(quite inactive and tutorials are a little for the programming savvy.

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• How do I know, when my develpment skills is enough to do some "real" job?

  - by hjdm

  I am in proccess of constant learning web technologies now. I have know php, pure javascript ( I think, I can pick up jquery fast if needed ), html, css and basic crud with databases. I understand how MVC frameworks work. I have made a couple websites for friends ( one with my own engine ). Maybe it is time to try to do some interesting stuff for someone? ( say freelance or try to find some job in this industry ) Which expierence did you have, when you got your first job?

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• Issues with upgrade to ubuntu 14.04

  - by SUBPUR

  First, I should say that I am a total beginner. When answering, please do not take for granted that I understand even the most basic step. Now for my question: Yesterday, I was given the option to update to ubuntu 14.04. I clicked yes, and the system took about 2.5 hours to accomplish this task. Now, whenever I log into my user account, I get an error message and then I am asked to authenticate my user account. When I try to enter the password, my computer freezes. Please help, what can I do to fix this?

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• Where can I get a definition of how the code is laid out in VB.NET 2010?

  - by ByteWorker

  I am just starting out learning Visual Basic 2010. I have books and videos. The books all seem to be written for people who have some programming experience, even the books that say they are for beginners. The videos were great until they started talking about variables. I got the basics of them but they started into complicated variables and I don’t see the need for them right away. Where can I go to see code for fairly intricate applications written out, with an over lay of definitions of which part of the code is a method as opposed to a class and so on? Also, I am working at a company that does not use SQL. So I need to use Access 2007 for all of my tables. Is there much of a difference to the coding?

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• More complex learning source for C# .NET [closed]

  - by Leron

  By complex I don't mean more difficult but including a larger area of possibilities cover. I've started a few years ago with PHP and the transition from learning the syntax of the language and the basic logical structures to working with databases, including JavaScript and so on was very short. And now I'm more interested in studying working with languages like Java/C#. Recently I spend a lot of time reading and writing some simple console applications, I've read almost 2K pages for C# programming and still don't know how to connect to database for example. Just for info I'm interested in web development, socket programing and live streaming, don't know if I'm exceeding myself too much writing that but despite that I want to find some books/internet sources where I can extend my current knowledge of C#/.NET, start using database queries, maybe try something more complicated webwise.

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• C++ unmanaged inside winform

  - by Gosso

  First: I am using C# and C++ on windows 7. I have created a basic rendering engine in c++ with directx 10. It works good as a stand alone application. But, when I sending the Form.Handle of a WinForm I want to render inside to the engine it crashes during D3D10CreateDeviceAndSwapChain with the following error: HRESULT: 0x887a0001 (2289696769) Name: DXGI_ERROR_INVALID_CALL I get the handle from the winform during loading of the form. unsafe { void *ptr=m_view.Handle.ToPointer(); uint v = (uint)ptr; lhandle = v.ToString(); };

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• How to make a scrolling background?

  - by Liamh101

  I'm making a Shooter game like "1943" and "Jamestown". I was wondering how I would make the background scroll up to simulate moving forward. I would also like it to scroll slightly to the left and right when the player reaches the sides of the screen. Finally, how would I make this efficient? I was thinking about using a animated GIF or to make a looping BitMap. Please could someone help me out. (I am Using Visual Basic 2010) Thanks!

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• Developing a search algorithm

  - by Richart Bremer

  I want to create a basic search engine, and I want you to give me some ideas how to filter out the best results for my visitors. I have three fields regarding a product the user can search in: Title Category Description I came up with these ideas and I ask you to either competently criticize them or add to them. If the search term occurs in all three fields it should be among the first results. If it is in two of the fields it is below the results of 1. Combine the amount of occurences and output a value in per cent. For instance if in all fields together the term clock appeared 50 times and in all fields together there are 200 words, then the per cent value is 50/200*100 = 25%. Another product entry amounts to say 20% so product one having 25% is listed before product two having 20%.

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• Exclude a sub directory in a protected directory

  - by user1351358

  I need to exclude protection on one of the folder inside a protected directory with .htaccess I put .htaccess in here: /home/mysite/public_html/new/administrator/.htaccess The directory need to be exclude from protection: /home/mysite/public_html/new/administrator/components/com_phocagallery/ My .htaccess file : AuthUserFile "/home/mysite/.htpasswds/public_html/new/administrator/passwd" AuthType Basic AuthName "admin" require valid-user SetEnvIf Request_URI "(/components/com_phocagallery/)$" allow Order allow,deny Allow from env=allow Satisfy any I tried but not working on my purpose. I suspect my path to the excluded directory may have some mistakes. Please advise me. Thanks.

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• Can not login to Normal mode

  - by Technology is good

  I installed ubuntu 12 in my old PC Acer Power Series. After installation i got the Login Screen which appears unusally big. when i logged-in in some fail-safe mode. I got the normal ubuntu running. but if i restart the system i can login using fail-safe mode but i can't login normally. I think the problem must be i don't have a graphic card. Even if i do have one that must be very very low configuration one. Kindly help me with graphic card config if that is the problem with my PC. I just want to use ubuntu for normal documentation purpose. I am new to ubuntu so techcies help me with basic guidance. Thank you. Karthik Muralitharan

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• What kind of math should I be expecting in advanced programming?

  - by I_Question_Things_Deeply

  And I don't mean just space shooters and such, because in non-3D environments it's obvious that not much beyond elementary math is needed to implement. Most of the programming in 2D games is mostly going to involve basic arithmetic, algorithms for enemy AI and dimensional worlds, rotation, and maybe some Algebra as well depending on how you want to design. But I ask because I'm not really gifted with math at all. I get frustrated and worn out just by doing Pre-Algebra, so Algebra 2 and Calculus would likely be futile for me. I guess I'm not so "right-brained" when it comes down to pure numbers and math formulas, but the bad part is that I'm no art-expert either. What do you people here suppose I should do? Go along avoiding as much of the extremely difficult maths I can't fathom, or try to ease into more complex math as I excel at programming?

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• Start Programming embedded devices

  - by user1611753

  I am good at C programming and also I am good at embedded devices. I have setup an embedded circuit myself using the basic arduino and by interfacing some devices with it. But the main problem is that I do not know where and how to start programming this device with the known C programming skills. The device has an on chip boot loader. By "start programming", I mean how to bring the embedded device into my programming and stuff. I know program starts from a main() and an infinite loop makes the application run. But the real question is, how to start this all and integrate the hardware with the software which I write. Kindly help with this. Thanks for the help in advance.

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• Baby's first big CPP project - please help [closed]

  - by jamesson

  So, I need to do a few things to the code here; http://64.90.55.88/SynapseSource-Win.zip What I need to do 1)remove the opengl output window 2)Make it work with latest openni (http://75.98.78.94/default.aspx) - as far as I could tell it only works with a specific older version 3)Improve ram and cpu usage (assuming I don't get what I need from the first two changes) 4)Eventually rebuild it as an object in this sdk; http://cycling74.com/products/sdk/ I tried going through the documentation, but "the needle could not penetrate", alas. For example, I am still unclear about some basic things; a) what are the relative responsibilities of nite vs openni? b) which xml files are always used when the app launches, and what is their format? Many thanks in advance Joe Stavitsky

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