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  • Scratch disks on solid state drives

    - by Kato
    For something like Final Cut Pro where you have scratch disks, is it absolutely a bad idea to use a solid state drive? There would be a lot of writing, but I'm thinking it would be less for video editing then say, programming? The read/write cycles for SSDs still seem pretty long...

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  • outlining in colors

    - by John
    ? I like outlining all information, but I am looking for better way to outline: I would like my outlines to be colorful like programming, so that it is very easy to distinguish between different types of texts within an outline. How can I do this?

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  • How can I see a visual overlay of shortcut keys I've pressed?

    - by lyricsboy
    I've seen several screencasts (recorded on Mac OS X) which show a nice little "toast" indicating which shortcut key is being pressed by the screencaster, typically in the middle of the screen. Is this a feature of the screencasting software? Is there an app that does this that stands alone? I regularly do presentations for programming classes, and I want a way to show my audience what shortcuts I'm activating.

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  • How to use dedicated video card instead of onboard?

    - by Mathias Lykkegaard Lorenzen
    Hi there! I tried running DxDiag (DirectX diagnostics), and I noticed that my graphics card is set to the onboard one that comes with the Core i5 processor (some Intel HD stuff). On my computer, I also have a dedicated graphics card (an Nvidia 310). No serious gaming stuff, I know - just for programming. However, I would still love to know how to switch to that dedicated graphics card instead. My laptop is an MSI CX720.

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  • Sending characters on Mac USB

    - by Olivier
    Hello, I have a RS232C/USB cable to connect an electronic device to my iMac Intel (MacOSX SnowLeo 10.6.3). Is there a utility program that allows for sending ASCII characters on the USB port that the RS232C device will understand? If possible, I'd rather avoid programming. I'd prefer an Automator script or a simple program with a GUI. Thanks

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  • How to limit a process to a single CPU core?

    - by Jonathan
    How do you limit a single process program run in a Windows environment to run only on a single CPU on a multi-core machine? Is it the same between a windowed program and a command line program? UPDATE: Reason for doing this: benchmarking various programming languages aspects I need something that would work from the very start of the process, therefore @akseli's answer, although great for other cases, doesn't solve my case

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  • How do I program the Sparkfun Arduino Pro Micro with Linux?

    - by zeldarulez
    Sparkfun's Arduino Pro Micro was the ideal choice for me (in size and price), but I cannot figure out how to program it on anything other than Windows. Sparkfun doesn't provide any resources on how to program the Arduino Pro Micro on Linux, and there aren't any direct resources on the Internet for installing drivers/ programming it. Hoow do I program the Arduino Pro Micro with Linux? Thanks! Note: My OS is Ubuntu

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  • unavailable disc after installing windows7

    - by niao
    Greetings, I know this is a site about programming but I don't know where to put this question. The problem is that after installing Windows7 one partition is unavailable. The error is: "E:\ is unavailable" Access denied. There is no information about available space etc. How can I resolve this problem because there are some very important files on that partition.

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  • Page layout software that allows mixed visual and programatic editing

    - by Justin Love
    I'd like to use a programming model for custom graphics and precision placement, and an interactive visual mode for large scale layout and less precise placements. I've used tools (PostScript, various vector drawing programs) that do one of these modes well, but leave me pining for the other model. Which tools should I be investigating? I'm currently on OS X. Examples: Creating diagrams with precise spacing, sets of cards, either likely drawing from some sort of data.

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  • Practical way to implement prevention of IP Spoofing

    - by user1369975
    I am an undergraduate Computer Science student and was hoping to gain some knowledge of ways to help prevent IP spoofing but all the resources I have tried out elaborate this concept in a theoretical way. I want to try out my hands at one of the techniques like: http://en.wikipedia.org/wiki/Port_knocking http://en.wikipedia.org/wiki/SYN_cookies How do I simulate this whole situation in my own system were I myself am the attacker and I myself have to defend it? And once I have gained an understanding of it, then how do I start translating that into programming terms?

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  • Automatic sort for excel worksheet

    - by Joseph
    I want to create a to-do list in Excel that automatically sorts the to-do entries in a list, in order of ones to do first (closest deadlines). I would also like a section that shows the tasks for today and another for high-priority tasks coming up within a week. I have not programmed in Excel before. I know Python and JavaScript, but want an Excel solution that runs inside Excel (maybe using VBA, the Excel programming language). Is this sort of thing possible in Excel?

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  • i7 4770k or i7 4930k - Which for faster compile times? [on hold]

    - by Chumm
    I've looked up comparisons and found that single core performance seems to be better on i7 4770k, but has less cores that the i7 4930k. Would VS take advantage of extra cores when compiling, or would the difference be negible. I'm looking to buy the PC primarily for programming, so which would be better for visual studio? I already have the rest of my build ready, I just need to decide on this! :) thanks

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  • What vim features do you use?

    - by Frew
    I spend almost all day programming in vim and I am sure that a lot of you do too. What features do you use that make your day to day coding that much better? One that I use is gv, which will let you reselect the previously selected text. Great for reindenting!

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  • what's the safest OS?

    - by Bob
    I have pretty important stuff on my PC (using Windows). All the programming files, passwords etc. And now I thought: Is that even safe to store all this information on a hard drive? What if some virus (or a pseudo-antivirus gets it) M.b. it is better to buy Mac for this purpose? I kinda don't like Linux, cause I hate making million small decisions manually (what drivers to install etc) Will like to hear some opinions.

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  • Can I automatically map chrome's bookmarks bar to its jump list?

    - by Alex Nye
    I would like the contents of my bookmarks bar to be present in my Google Chrome jump list, without the manual tedium of managing both the bar's organization and contents and those of the jump list. If it's possible to automatically manage jump lists in such a way as to make this possible, I'd be delighted. I don't think I'm quite ready to attempt programming an extension thus myself. edit: it appears this is not possible. I have submitted the feature as a request to the chrome team.

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  • Searching major search engines with text such as <%#

    - by Daniel Dyson
    If I type '<%# vs <%"' into any of the major search engines, everything is stripped out except the 'vs'. I understand why they do this. I would just like to know if anyone knows of a way to escape illegal characters so that they are searched properly. I know this is not strictly a programming question, but it is relevant.

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  • Prefer extension methods for encapsulation and reusability?

    - by tzaman
    edit4: wikified, since this seems to have morphed more into a discussion than a specific question. In C++ programming, it's generally considered good practice to "prefer non-member non-friend functions" instead of instance methods. This has been recommended by Scott Meyers in this classic Dr. Dobbs article, and repeated by Herb Sutter and Andrei Alexandrescu in C++ Coding Standards (item 44); the general argument being that if a function can do its job solely by relying on the public interface exposed by the class, it actually increases encapsulation to have it be external. While this confuses the "packaging" of the class to some extent, the benefits are generally considered worth it. Now, ever since I've started programming in C#, I've had a feeling that here is the ultimate expression of the concept that they're trying to achieve with "non-member, non-friend functions that are part of a class interface". C# adds two crucial components to the mix - the first being interfaces, and the second extension methods: Interfaces allow a class to formally specify their public contract, the methods and properties that they're exposing to the world. Any other class can choose to implement the same interface and fulfill that same contract. Extension methods can be defined on an interface, providing any functionality that can be implemented via the interface to all implementers automatically. And best of all, because of the "instance syntax" sugar and IDE support, they can be called the same way as any other instance method, eliminating the cognitive overhead! So you get the encapsulation benefits of "non-member, non-friend" functions with the convenience of members. Seems like the best of both worlds to me; the .NET library itself providing a shining example in LINQ. However, everywhere I look I see people warning against extension method overuse; even the MSDN page itself states: In general, we recommend that you implement extension methods sparingly and only when you have to. (edit: Even in the current .NET library, I can see places where it would've been useful to have extensions instead of instance methods - for example, all of the utility functions of List<T> (Sort, BinarySearch, FindIndex, etc.) would be incredibly useful if they were lifted up to IList<T> - getting free bonus functionality like that adds a lot more benefit to implementing the interface.) So what's the verdict? Are extension methods the acme of encapsulation and code reuse, or am I just deluding myself? (edit2: In response to Tomas - while C# did start out with Java's (overly, imo) OO mentality, it seems to be embracing more multi-paradigm programming with every new release; the main thrust of this question is whether using extension methods to drive a style change (towards more generic / functional C#) is useful or worthwhile..) edit3: overridable extension methods The only real problem identified so far with this approach, is that you can't specialize extension methods if you need to. I've been thinking about the issue, and I think I've come up with a solution. Suppose I have an interface MyInterface, which I want to extend - I define my extension methods in a MyExtension static class, and pair it with another interface, call it MyExtensionOverrider. MyExtension methods are defined according to this pattern: public static int MyMethod(this MyInterface obj, int arg, bool attemptCast=true) { if (attemptCast && obj is MyExtensionOverrider) { return ((MyExtensionOverrider)obj).MyMethod(arg); } // regular implementation here } The override interface mirrors all of the methods defined in MyExtension, except without the this or attemptCast parameters: public interface MyExtensionOverrider { int MyMethod(int arg); string MyOtherMethod(); } Now, any class can implement the interface and get the default extension functionality: public class MyClass : MyInterface { ... } Anyone that wants to override it with specific implementations can additionally implement the override interface: public class MySpecializedClass : MyInterface, MyExtensionOverrider { public int MyMethod(int arg) { //specialized implementation for one method } public string MyOtherMethod() { // fallback to default for others MyExtension.MyOtherMethod(this, attemptCast: false); } } And there we go: extension methods provided on an interface, with the option of complete extensibility if needed. Fully general too, the interface itself doesn't need to know about the extension / override, and multiple extension / override pairs can be implemented without interfering with each other. I can see three problems with this approach - It's a little bit fragile - the extension methods and override interface have to be kept synchronized manually. It's a little bit ugly - implementing the override interface involves boilerplate for every function you don't want to specialize. It's a little bit slow - there's an extra bool comparison and cast attempt added to the mainline of every method. Still, all those notwithstanding, I think this is the best we can get until there's language support for interface functions. Thoughts?

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  • Netbeans 7.2 Missing Modules Warning

    - by el10780
    Everytime I start Netbeans and the splash screen shows up when it gets to the part to load the modules I receive the following error message : Warning - could not install some modules: Editor Library 2 - None of the modules providing the capability org.netbeans.modules.editor.actions could be installed. Tags Based Editors Library - The module named org.netbeans.modules.editor.deprecated.pre65formatting/0-1 was needed and not found. Java Editor Library - The module named org.netbeans.modules.editor.deprecated.pre65formatting/0-1 was needed and not found. Preprocessor Bridge - None of the modules providing the capability org.netbeans.modules.java.preprocessorbridge.spi.JavaSourceUtilImpl could be installed. Freeform Ant Projects - The module named org.netbeans.modules.editor.indent.project/0-1 was needed and not found. Editor Code Templates - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. Static Analysis Core - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. Java Source - The module named org.netbeans.modules.editor.indent.project/0-1 was needed and not found. Eclipse Project Importer - The module named org.netbeans.modules.java.api.common/0-1 was needed and not found. Java Hints SPI - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. Java Refactoring - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. Java Editor - The module named org.netbeans.modules.editor.bracesmatching/0-1 was needed and not found. Java Editor - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. Java Editor - The module named org.netbeans.modules.editor.deprecated.pre65formatting/0-1 was needed and not found. Java Hints UI - The module named org.netbeans.modules.code.analysis/0-1 was needed and not found. Java Hints UI - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. Legacy Java Hints SPI - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. Java Hints - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. Java Declarative Hints - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. Javadoc - The module named org.netbeans.modules.editor.bracesmatching/0-1 was needed and not found. Javadoc - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. Common Scripting Language API (new) - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. XML Text Editor - The module named org.netbeans.modules.editor.bracesmatching/0-1 was needed and not found. XML Text Editor - The module named org.netbeans.modules.editor.deprecated.pre65formatting/0-1 was needed and not found. CSS Editor - The module named org.netbeans.modules.editor.bracesmatching/0-1 was needed and not found. HTML Editor - The module named org.netbeans.modules.editor.bracesmatching/0-1 was needed and not found. JavaScript Editing - The module named org.netbeans.modules.editor.bracesmatching/0-1 was needed and not found. JavaScript Hints - The module named org.netbeans.spi.editor.hints/0-1 was needed and not found. Editing Files - The module named org.netbeans.modules.editor.bracesmatching/0-1 was needed and not found. IDE Platform - The module named org.netbeans.modules.editor.macros/0-1 was needed and not found. Java SE Projects - The module named org.netbeans.modules.java.api.common/0-1 was needed and not found. 86 further modules could not be installed due to the above problems. Whatever I press either Exit or Disable Modules and Continue or even I close from the "X" Button the Warning window closes and then Netbeans never starts. I have looked it up on the Internet,but I couldn't find a solution.

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  • JavaOne Tutorial Report - JavaFX 2 – A Java Developer’s Guide

    - by Janice J. Heiss
    Oracle Java Technology Evangelist Stephen Chin and Independent Consultant Peter Pilgrim presented a tutorial session intended to help developers get a handle on JavaFX 2. Stephen Chin, a Java Champion, is co-author of the Pro JavaFX Platform 2, while Java Champion Peter Pilgrim is an independent consultant who works out of London.NightHacking with Stephen ChinBefore discussing the tutorial, a note about Chin’s “NightHacking Tour,” wherein from 10/29/12 to 11/11/12, he will be traveling across Europe via motorcycle stopping at JUGs and interviewing Java developers and offering live video streaming of the journey. As he says, “Along the way, I will visit user groups, interviewing interesting folks, and hack on open source projects. The last stop will be the Devoxx conference in Belgium.”It’s a dirty job but someone’s got to do it. His trip will take him from the UK through the Netherlands, Germany, Switzerland, Italy, France, and finally to Devoxx in Belgium. He has interviews lined up with Ben Evans, Trisha Gee, Stephen Coulebourne, Martijn Verburg, Simon Ritter, Bert Ertman, Tony Epple, Adam Bien, Michael Hutterman, Sven Reimers, Andres Almiray, Gerrit Grunewald, Bertrand Boetzmann, Luc Duponcheel, Stephen Janssen, Cheryl Miller, and Andrew Phillips. If you expect to be in Chin’s vicinity at the end of October and in early November, by all means get in touch with him at his site and add your perspective. The more the merrier! Taking the JavaFX PlungeNow to the business at hand. The “JavaFX 2 – A Java Developer’s Guide” tutorial introduced Java developers to the JavaFX 2 platform from the perspective of seasoned Java developers. It demonstrated the breadth of the JavaFX APIs through examples that are built out in the course of the session in an effort to present the basic requirements in using JavaFX to build rich internet applications. Chin began with a quote from Oracle’s Christopher Oliver, the creator of F3, the original version of JavaFX, on the importance of GUIs:“At the end of the day, on the one hand we have computer systems, and on the other, people. Connecting them together, and allowing people to interact with computer systems in a compelling way, requires graphical user interfaces.”Chin explained that JavaFX is about producing an immersive application experience that involves cross-platform animation, video and charting. It can integrate Java, JavaScript and HTML in the same application. The new graphics stack takes advantage of hardware acceleration for 2D and 3D applications. In addition, we can integrate Swing applications using JFXPanel.He reminded attendees that they were building JavaFX apps using pure Java APIs that included builders for declarative construction; in addition, alternative languages can be used for simpler UI creation. In addition, developers can call upon alternative languages such as GroovyFX, ScalaFX and Visage, if they want simpler UI creation. He presented the fundamentals of JavaFX 2.0: properties, lists and binding and then explored primitive, object and FX list collection properties. Properties in JavaFX are observable, lazy and type safe. He then provided an example of property declaration in code.  Pilgrim and Chin explained the architectural structure of JavaFX 2 and its basic properties:JavaFX 2.0 properties – Primitive, Object, and FX List Collection properties. * Primitive Properties* Object Properties* FX List Collection Properties* Properties are:– Observable– Lazy– Type SafeChin and Pilgrim then took attendees through several participatory demos and got deep into the weeds of the code for the two-hour session. At the end, everyone knew a lot more about the inner workings of JavaFX 2.0.

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  • Lazy Evaluation &ndash; Why being lazy in F# blows my mind!

    - by MarkPearl
    First of all – shout out to Peter Adams – from the feedback I have gotten from him on the last few posts of F# that I have done – my mind has just been expanded. I did a blog post a few days ago about infinite sequences – I didn’t really understand what was going on with it, and I still don’t really get it – but I am getting closer. In Peter’s last comment he made mention of Lazy Evaluation. I am ashamed to say that up till then I had never heard about lazy evaluation – how can evaluation be lazy? I mean, I know about lazy loading and that makes sense… but surely something is either evaluated or not! Well… a bit of reading today and I have been enlightened to a point – if you do know of any good articles explaining lazy evaluation please send them to me. So what is lazy evaluation and why is it useful? Lazy evaluation is a process whereby the system only computes the values needed and “ignores” the computations not needed. I’m going out on a limb here, but with this explanation in hand, imagine the following C# code… public int CalculatedVal() { int Val1 = 0; int Val2 = 0; for (int Count = 0; Count < 1000000; Count++) { Val1++; } return Val2; }   Normally, even though Val1 is never needed, the system would loop 1000000 times and add 1 to the current value of Val1. Imagine if the system realized this and so just skipped this segment of code and instead did the following…. public int CalculatedVal() { int Val1 = 0; return Val2; }   A massive saving in computation and wasted effort. Now I am pretty sure it isn’t as simple as this but I think this is the basic idea. For a more detailed explanation of lazy evaluation in c#, Pedram Rezei has a wonderful post on lazy evaluation and makes some C# comparisons. I am not going to take any thunder from him by repeating everything he said since I think he did such a good job of explaining it himself. What I am interested in though is how in F# do you tell something to have lazy evalution, and how do you know if something will be eager or lazy by looking at it. I found this post was useful. From reading around F# by default uses eager evaluation unless explicitly told to use lazy evaluation. One exception to this is sequences, which are lazy by default. Now reading about lazy evaluation has helped me understand more about F# coding… From my understanding of F# because of its declarative nature, most of the actual code you are declaring properties and rules – very little code is actually saying do this right now - but when it comes to a “do this” code section, it then evaluates and optimizes code and applies the rules. So props to lazy evaluation and its optimizations…

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  • Implementing Database Settings Using Policy Based Management

    - by Ashish Kumar Mehta
    Introduction Database Administrators have always had a tough time to ensuring that all the SQL Servers administered by them are configured according to the policies and standards of organization. Using SQL Server’s  Policy Based Management feature DBAs can now manage one or more instances of SQL Server 2008 and check for policy compliance issues. In this article we will utilize Policy Based Management (aka Declarative Management Framework or DMF) feature of SQL Server to implement and verify database settings on all production databases. It is best practice to enforce the below settings on each Production database. However, it can be tedious to go through each database and then check whether the below database settings are implemented across databases. In this article I will explain it to you how to utilize the Policy Based Management Feature of SQL Server 2008 to create a policy to verify these settings on all databases and in cases of non-complaince how to bring them back into complaince. Database setting to enforce on each user database : Auto Close and Auto Shrink Properties of database set to False Auto Create Statistics and Auto Update Statistics set to True Compatibility Level of all the user database set as 100 Page Verify set as CHECKSUM Recovery Model of all user database set to Full Restrict Access set as MULTI_USER Configure a Policy to Verify Database Settings 1. Connect to SQL Server 2008 Instance using SQL Server Management Studio 2. In the Object Explorer, Click on Management > Policy Management and you will be able to see Policies, Conditions & Facets as child nodes 3. Right click Policies and then select New Policy…. from the drop down list as shown in the snippet below to open the  Create New Policy Popup window. 4. In the Create New Policy popup window you need to provide the name of the policy as “Implementing and Verify Database Settings for Production Databases” and then click the drop down list under Check Condition. As highlighted in the snippet below click on the New Condition… option to open up the Create New Condition window. 5. In the Create New Condition popup window you need to provide the name of the condition as “Verify and Change Database Settings”. In the Facet drop down list you need to choose the Facet as Database Options as shown in the snippet below. Under Expression you need to select Field value as @AutoClose and then choose Operator value as ‘ = ‘ and finally choose Value as False. Now that you have successfully added the first field you can now go ahead and add rest of the fields as shown in the snippet below. Once you have successfully added all the above shown fields of Database Options Facet, click OK to save the changes and to return to the parent Create New Policy – Implementing and Verify Database Settings for Production Database windows where you will see that the newly created condition “Verify and Change Database Settings” is selected by default. Continues…

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