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  • Serialization with Qt

    - by Narek
    I am programming a GUI with Qt. In my GUI I have a huge std::map. And "MyType" is a class that has different kinds of filds. So, in a word, I want to serialize the std::map. How can I do that? Does Qt provides us with neccesary features? P.S. I would like to use std::map, NOT QMap.

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  • How can I tell if a set of parens in perl code will act as grouping parens or form a list?

    - by Ryan Thompson
    In perl, parentheses are used for overriding precedence (as in most programming languages) as well as for creating lists. How can I tell if a particular pair of parens will be treated as a grouping construct or a one-element list? For example, I'm pretty sure this is a scalar and not a one-element list: (1 + 1) But what about more complex expressions? Is there an easy way to tell?

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  • How to export image from Air app directly into a powerpoint slide programmatically

    - by user306584
    Apologies if this has been answered before or if it's too obvious - pointers are greatly appreciated if this is the case. What I'm trying to do: 1) have a way to save / copy screenshot from an Air app 2) automatically paste such screenshot into a new powerpoint slide in the current presentation I have part 1 down but have no idea on how to do part 2 - I have very little experience with programming around MS apps. thank you. f

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  • Dynamic UI vs Static UI

    - by Damien
    I've been wondering, at what point should I give up the convenience of a static data entry form with designer support for a dynamic UI which removes a lot of code duplication? There seems to be a conflict in the programming world where people constantly try to remove code repetition to improve maintainability and yet when it comes to forms, that all goes out of the window and everything gets added explicitly to the forms. What signs should I look for to know when it's time to leave the designer in the dust and create a dynamic UI?

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  • Resources for learning Monads, Functors, Monoids, Arrows etc

    - by Dony Borris
    Can you people please suggest some good books / weblinks from where I can get to learn about above mentioned concepts? (Please note that I am a Java programmer and have NO prior experience with functional programming. I have been studying Scala since last one month and would appreciate the resources that try to teach the above mentioned concepts with Scala. (or even Java, if posible))

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  • How-to: determine 64-bitness of Windows? [closed]

    - by warren
    Possible Duplicate: Tell the version of Windows XP (64-bits or 32-bits) Is it possible to determine whether a given installation of Windows is 32- or 64-bit? From right-clicking on My Computer, and selecting Properties, it appears that such information is not readily available. Typing ver at the command prompt also doesn't seem to return anything about the nature of the platform in which it is installed. Under Linux, I'd use uname -a to find out what kernel was running. Is there an analog on Windows?

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  • Read/Write operation on Fat table with out using System.IO in C#

    - by AZHAR
    Hi i am new to the system programming...i want to read information from fat table like total sector,total physical drive,containing logical drive types and as well containing files in the drives(like their file size,when accessed)with all information of files..and then display of these files with respect of their hierarchy at GUI. this is easy if we use System.IO namespace.but it is restricted for me.so please help

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  • Books for experienced .NET developer learning PHP/MySQL

    - by webworm
    Hi All, I am an experienced .NET developer (C#/ASP.NET) looking to broaden my skills to the PHP/MySQL arena. I would like get recommendations on books for learning PHP/MySQL that are geared towards someone who is already familiar with object oriented programming and web development. I do realize that there are lots of online material out there but I am looking for an actual print book I can read. Thanks a bunch.

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  • Any good open source online RPG starter kit for development ?

    - by Andrew Sky
    Hi there, Does anyone know of a good open source toolkit that allows level designer and graphic designer or someone with basic programming experience to create multiplayer online Role Playing Game ? The game can be a simple 2D interface in a 2d virtual world. I know Microsoft have a starter kit something like the following : http://creators.xna.com/en-US/starterkit/roleplayinggame that allows developer to create RPG game running on XBox platform but i am looking more on multiplayer role playing game on the web platform where player can play directly with their browser. regards Andrew

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  • Allow access to my server.

    - by Zachary Brown
    I have a server, did some of the programming myself. It ison my home network, but I need to be able to access it from anywhere over the internet. I have done the port forwarding like I am supposed to, but I still cant get to it from an outside computer. It just displays Internet Explorer cannot display the webpage. I don't know what else to do. I am on a Linksys WRT54G v8 router running ddWRT v24 micro firmware.

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  • Why there is no open source framework (like Java) for C# application development?

    - by Calvin
    Hi, C# is much more popular than Java in recent years. As a general-purpose programming language, many people feel that C# is better designed than Java. Why until now there is no open source framework for C# application development? Why no one take the initiative to develop a open source framework for C# which is comparable to Java? (Many people say Mono is not a mature framework and should not be used in serious application development.) Calvin

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  • How to skip parentheses on Netbeans with enter?

    - by nunos
    So I have been programming in C++ with Eclipse and have the habit of hitting enter to skip parentheses (anyone who has ever used eclipse probably knows what I am talking about). I have recently started learning Java and decided to use NetBeans, mostly due to the much more simple interface. However, I would like to know if there a way to skip the (), [], < and "" on enter just like what happens in Eclipse in NetBeans. Thanks.

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  • Books to help self-taught programmers.

    - by RHaguiuda
    As a self-taught programmer I find myself sometimes thinking how to improve my learning skills. Are there any books out there that you recommend, that help a self-taught learning aproach? When I ask about books here, please I`m not reffering about programming books, but something more like metacognition and the process of learning.

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  • Trying to determine the correct number of XFS allocation groups for postgresql server on Linux

    - by HBlend
    I am running a postgres 8.4.5 server on the linux 2.6.33.7 kernel on an 8 disk raid array with an LSI controller. Most of the tables are around 1GB or less. I know that XFS uses allocation groups (AG) to achieve I/O parallelism. My first question is, does this mean that if two tables are in the same AG, all I/O requests are queued to both of them if either is being read from/written to? If so, I assume I would want to spread my tables across as my allocation groups as possible, correct? Wouldn't this ensure that multiple users querying different tables would get the best performance?

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  • How Do I make an Acer T230H Touchcreen work on Ubuntu 9.10?

    - by N Rahl
    I've done this so far: sudo nano /etc/udev/rules.d/99-touchscreen.rules And added: SUBSYSTEM=="usb", ATTRS{idVendor}=="0408", ATTRS{idProduct}=="3000", SYMLINK+="usb/quanta_touch" SUBSYSTEM=="input", KERNEL=="event*", ATTRS{idVendor}=="0408", ATTRS{idProduct}=="3000", SYMLINK+="input/quanta_touch" sudo service udev restart then the instructions here: http://ubuntuforums.org/showpost.php?p=8932808&postcount=36 And then added to my xorg conf: Section "InputDevice" Identifier "Acer T230H" Driver "hidtouch" Option "SendCoreEvents" "true" Option "ReportingMode" "Raw" Option "Device" "/dev/usb/quanta_touch" Option "PacketCount" "13" Option "OpcodePressure" "852034" Option "OpcodeX" "65584" Option "OpcodeY" "65585" Option "CalibrationModel" "1" Option "CornerTopLeftX" "0" Option "CornerTopLeftY" "0" Option "CornerTopRightX" "1920" # 1920 for 23" Option "CornerTopRightY" "0" Option "CornerBottomLeftX" "0" Option "CornerBottomLeftY" "1080" # 1080 for 23" Option "CornerBottomRightX" "1920" # 1920 for 23" Option "CornerBottomRightY" "1080" # 1080 for 23" Option "CornerScreenWidth" "1920" # 1920 for 23" Option "CornerScreenHeight" "1080" # 1080 for 23" EndSection Section "ServerLayout" Identifier "Touchscreen" InputDevice "Acer T230H" "SendCoreEvents" EndSection And restarted. And the touchscreen does nothing. Any ideas?

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  • Castle Windsor XML configuration for WCF proxy using WCF Integration Facility

    - by andreyg
    Hi everybody! Currently, we use programming registration of WCF proxies in Windsor container using WCF Integration Facility. For example: container.Register( Component.For<CalculatorSoap>() .Named("calculatorSoap") .LifeStyle.Transient .ActAs(new DefaultClientModel { Endpoint = WcfEndpoint.FromConfiguration("CalculatorSoap").LogMessages() } ) ); Is there any way to do the same via Windsor XML configuration file. I can't find any sample of this on google. Thanks in advance

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  • Socks5 proxy "Dante" leaves many child processes stuck in FIN_WAIT2 / CLOSE_WAIT state

    - by Asad R.
    I'm running dante v1.2.1 as a SOCKS proxy server. The proxy works fine but at the end of the day there are around 40-50 or more child processes of sockd running even though there are no active connections. lsof shows that the child processes all have sockets in the CLOSE_WAIT and FIN_WAIT2 state. These child processes stay in this state unless I manually killall/restart the daemon. I'm running Gentoo Linux on a 2.6.24-23-xen kernel. I recently upgraded from dante v1.1.19-r4 which was giving me the exact same problem. Is this a configuration issue with Dante, my system, or is it a coding issue in the dante code?

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  • Mac : Run Foundation Tool app as cronjob?

    - by Holli
    This may not be completely programming related ... In Xcode I wrote a little Foundation Tool application for maintenance. Copy files from A to B , delete logs and so on. Now I want to run the application in background once a day or once an hour. How do I set this up? Can it be done with a Foundation Tool application or is there another Xcode project type for tasks like this?

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  • How to properly deal with KVO notifications when an managed object turns into a fault?

    - by dontWatchMyProfile
    From the docs: When Core Data turns an object into a fault, key-value observing (KVO) change notifications (see Key-Value Observing Programming Guide) are sent for the object’s properties. If you are observing properties of an object that is turned into a fault and the fault is subsequently realized, you receive change notifications for properties whose values have not in fact changed. So if an object turns into a fault, Core Data does send KVO notifications for changed properties? So I must always check for isFault == NO before beeing happy about the notification?

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  • Executing Javascript without a browser?

    - by Daniel
    I am looking into Javascript programming without a browser. I want to run scripts from the Linux or Mac OS X command line, much like we run any other scripting language (ruby, php, perl, python...) $ javascript my_javascript_code.js I looked into spider monkey (Mozilla) and v8 (Google), but both of these appear to be embedded. Is anyone using Javascript as a scripting language to be executed from the command line? If anyone is curious why I am looking into this, I've been poking around node.js

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  • Can SATA be used to connect computers?

    - by André
    Can SATA be used to connect two computers together, just like a crossover Ethernet cable would do ? I know SATA has no "networking" features and even though a controller may have multiple ports, the drives don't "see" each other, and that in SATA one device acts as the host (the computer) and the other device is some kind of "client" (the storage drive). But still, did anyone attempt to make a kernel module that would make one computer appear as a "client" (so that the host's SATA controller detects it as a standard hard drive) and then set up like a pseudo-Ethernet link or a very high speed serial link (and then run pppd on it and do networking) ? Note : I know this is an unprofessional and totally stupid idea, I'm just asking out of curiosity.

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