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• Is there a way to formerly define a time interval for configuring a process?

  - by gshauger

  Horrible worded question...I know. I'm working on an application that processes data for the previous day. The problem is that I know the customer is going to eventually ask to it for every hour or some other arbitrary time interval. I know that languages such as Java or SQL have masks for defining dates. Well what about a way to define a time interval? Let me ask it this way. If someone asked you to create a configurable piece of software how would you allow the user to specify the time intervals?

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• understanding silverlight resource file format

  - by Quincy

  I'm trying to understand the format of silverlight resource files. There are 4 bytes of the data comes after PAD. I'd like to know what these values are, and how they are generated. here is the hex dump of a .g.resources file. Here is what I know: there is 0xbeefcace at the beginning, then there is dependancies, then padding. after that is the great unknown (but I really like to know). After 4 null bytes, are the file name and size of the resource. and After that is content of the said file. I'm not that familiar with .Net and silverlight resource management. would someone please tell me what the mystical 4 bytes are, or point me the url to the specification doc or something. Any help would be appreciated!

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• How to run java code using Java code?

  - by Nitz

  Hey Guys i want to do basically two things 1)I want to know is there any way that i can run the java code, using some java code. 2 ) and if it is possible then , and whatever the out put is then it should get that out put [ maybe output or error or exception ] and show on my screen, so i need to get that also. I know this is possible bcz one of my senior had done that..but i don't know how? May be with using the java's inbuilt classes. Note: user will write the code in some text file and then i will store that file content in some variable and then may be run that code.

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• How to change page author in wordpress?

  - by GaVrA

  Ofc i know how to do that, but the thing is that i am using "User Role Editor" and i have one user group that can read and edit published pages. Now, i will be adding all the pages on that site, and we will have several users that will need to have only one page they can edit, so i need for that page to change "Page author" to that user. In case you didnt know, when user have "Edit published pages" enabled they can edit only pages where they are listed as author. Problem is i can only do that by going in phpmyadmin and changing the page_author field to the id of that user because that user group, like i said, can only read and edit published pages. That is why i can not change page author from "Edit page" page to user from that user group. So my question is: does anyone know any solution to this problem which does not involve me going to phpmyadmin and changing the id for page_author there?

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• Knowledge for writing a compiler for Win32

  - by saf

  I have created an interpreter for my programming language (educational) and now I'd like to go one step further and create a compiler for it. I know that this is pretty hard work. What I already know is: I need to translate my input language to assembler A lot, isn't it? Now what I don't know is: What assembler do I need to create Win32 PE executables like, for example, Visual Studio does? What about file headers? I'd prefer not to use MASM but it seems like I'll have to. How to combine the assembler with my compiler?

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• var keyword without 'using someNamespace'

  - by RichK

  How does Visual Studio/intellisense know what to do with a variable declared as var even if you don't include the necessary using declaration at the top? For example, I have class MyDomainObject defined in a different namespace If I don't declare using TheOtherNameSpace; in the file the following code won't compile: private void Foo() { MyDomainObject myObj = new MyDomainObject(); // Doesn't know what this class is } But if I use var var myObj = new MyDomainObject(); This will compile, and intellisense knows exactly what I can with it. So how the heck does it know what the type is without the using? (And as an aside, if it knows without the using, why do we need usings at all?!)

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• Function arguments VBA

  - by user1068249

  I have these three functions: When I run the first 2 functions, There's no problem, but when I run the last function (LMTD), It says 'Division by zero' yet when I debug some of the arguments have values, some don't. I know what I have to do, but I want to know why I have to do it, because it makes no sense to me. Tinn-function doesn't have Tut's arguments, so I have to add them to Tinn-function's arguments. Same goes for Tut, that doesn't know all of Tinn's arguments, and LMTD has to have both of Tinn and Tut's arguments. If I do that, it all runs smoothly. Why do I have to do this? Public Function Tinn(Tw, Qw, Qp, Q, deltaT) Tinn = (((Tw * Qw) + (Tut(Q, fd, mix) * Q)) / Qp) + deltaT End Function Public Function Tut(Q, fd, mix) Tut = Tinn(Tw, Qw, Qp, Q, deltaT) - (avgittEffektAiUiLMTD() / ((Q * fd * mix) / 3600)) End Function Public Function LMTD(Tsjo) LMTD = ((Tinn(Tw, Qw, Qp, Q, deltaT) - Tsjo) - (Tut(Q, fd, mix) - Tsjo)) / (WorksheetFunction.Ln ((Tinn(Tw, Qw, Qp, Q, deltaT) - Tsjo) / (Tut(Q, fd, mix) - Tsjo))) End Function

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• How do I design a cryptographic hash function?

  - by Eyal

  After reading the following about why one-way hash functions are one-way, I would like to know how to design a hash function. http://stackoverflow.com/questions/1038307/help-me-better-understand-cryptographic-hash-functions/1047106#1047106 Before everyone gets on my case: Yes, I know that it's a bad idea to not use a proven and tested hash function. I would still like to know how it's done. I'm familiar with Feistel-network ciphers but those are necessarily reversible, horrible for a cryptographic hash. Is there some sort of construction that is well-used in cryptographic hashing? Something that makes it very one-way?

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• FTP client to zip before upload and unzip on the server after upload

  - by Ronaldo Junior

  I am always working with some big websites that is annoying to upload given the number of small files. I use Filezilla but am happy to buy some commercial solution if there is one out there that can zip the files before upload and then unzip it after upload. Its a pain to have to manually do that all the time. If someone know of any ftp client or extension for Filezilla or other that would do that... I sent an email to the support for CuteFTP and WSFtp - no answer so far... I know FTP protocol does not allow this command - thats why Im asking for a extension (if anyone know) or a free or commercial FTP client that do the job...

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• facebook iframe application gives null GET/POST

  - by misterjinx

  hey everybody, I came up to something really strange with a facebook iframe application. I don't know why but my global supervariables $_GET and $_POST are empty (nulls actually)! As far as i know, when using iframe for doing applications all the specific facebook variables are kept inside the $_GET variable. But for some reason now I don't have anything. I don't know what might be the problem. And as this wouldn't be enough, when i submit a form using POST as method, my $_POST variable is also null! What you guys think might be the problem? I've spent half a day trying to figure this out, but i didn't get any result.

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• most popular j2ee based websites

  - by krishna

  J2EE as I understand is used to build Enterprise applications. My question is :What are the most popular public facing(internet) sites using j2ee stack. The one's that I know of are : linkedIn.com ,evite.com and sun ibm and oracle (obviously) Eclipse.org uses php, I wonder why? If you have worked on/know any other sites, can your share your experience and also the technologies used(if that's not an issue)? EDIT:It doesn't have to use the full stack. EDIT : There are quite a few ecommerce websites like bestbuy.com. I know this bcos I worked with the ATG(atg.com) ecommerce suite and their website lists their clients. Iam looking for those kind of examples and also your experience working on them. Please limit to only internet sites

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• grid controls for ASP.NET MVC ?

  - by MikeJ

  If you are using ASP.NET MVC how are you doing grid display? Rolled your own? Got a library from somewhere? These are some of the known grid display solutions I have found for ASP.NET MVC ASP.NET MVC Flexgrid - Has nice column layout method Code based ASP.NET MVC GridView - simple, small, clean MVC Contrib - grid from codePlex jQueryGrid - jQuery grid Datatables - jQuery plugin - believed to be section 508 compliant extJS - cross browser RIA framework - has grid support Ingrid - jQuery data grid Terlerik MVC - jQuery based grid that is GPL v2 licensed, commercial version also available If you know of anything else that you are using or know to be good, please let me know.

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• How to quickly analyse large MDB file

  - by Craig Johnston

  I need to know how to quickly analyse a large MDB file (about 1GB) to see which tables are causing it to be so big. Is there something will easily allow me to show a breakdown of which tables are responsible for how much data. I need to know whether it is just this one customer who is using the application differently, or whether there is genuinely a lot of data in the MDB. This MDB is currently causing the VB app to crash, and I need to know why it is so big so that I can maybe think about how to put some of the data into another 'archival' MDB. Migrating to SQL Server is not an option, unless the use of linked tables from an MDB is a realistic option.

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• Pitfalls to avoid when starting a software company.

  - by Imagist

  It's been my goal to start my own software company basically since I started programming HyperCard on System 6 back in elementary school. Recent changes in my job situation have convinced me that I should be pursuing this goal more actively. My question is, what are some pitfalls that I should avoid when starting a software company? A lot of companies fail and I'm sure there are a lot of reasons. As a side-request, it would be particularly helpful if you could tell me a little about your own experience with starting a software company or being a part of a startup, so I know how you know what you know.

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• Steps in subclassing UINavigationController

  - by RickiG

  Hello I would like to subclass the UINavigationController to get some more freedom in regards to the appearance of the controller. I have some graphics for the different parts, bars, buttons, text etc. Looking at the UINavigationController header file I get little help, I don't know where to start out. I have never subclassed/overridden a UIKit component before, it seems it is a bit like playing Sherlock Holmes. What is the approach? How do I know what to override to get a a specific piece of graphics "injected" the correct place? Do I need to subclass UINavigationBar, UIBarButtonItem etc. etc to get the complete customized look? How do I know if something is off limits in regards to being approved by Apple? Hope someone can point me in the right direction, I have only been able to find examples of changing small parts of the controller, not a full customization by subclassing. Am I going about this the wrong way? Thanks:)

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• Is there a limit on the number of mutex objects that can be created in a Windows process?

  - by young-phillip

  I'm writing a c# application that can create a series of request messages. Each message could have a response, that needs to be waited on by a consumer. Where the number of outstanding request messages is constrained, I have used the windows EVENT to solve this problem. However, I know there is a limit on how many EVENT objects can be created in a single process, and in this instance, its possible I might exceed that limit. Does anyone know if there is a similar limit on creation of mutex objects or semaphores? I know this can be solved by some sort of pool of shared resources, that are grabbed by consumers when they need to wait, but it would be more convenient if each request message could have its own sync object.

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• Large Scale VHDL techniques

  - by oxinabox.ucc.asn.au

  I'm thinking about implimenting a 16 bit CPU in VHDL. A simplish CPU. ADD, MULS, NEG, BitShift, JUMP, Relitive Jump, BREQ, Relitive BREQ, i don't know somethign along these lines Probably all only working with 16bit operands. I might even cut it down and use only a single operand and a accumulator. With Some status regitsters, Carry, Zero, Neg (unless i use a Accumlator), I know how to design all the parts from logic gates, and plan to build them up from first priciples, So for my ALU I'll need to 'build' a ADDer, proably a Carry Look ahead, group adder, this adder it self is make up oa a couple of parts, wich are themselves made up of a couple of parts. Anyway, my problem is not the CPU design, or the VHDL (i know the language, more or less). It's how i should keep things organised. How should I use packages, How should I name my processes and port maps? (i've never seen the benifit of naming the port maps, or processes)

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• ACCESS 2003 Excel 2003 : VBA for opening Excel file from Access and copying a pictre from excel the

  - by Justin

  So I have an excel workbook that has a nice global map of shaperange objects. With some very simple code I can change the colors, group and ungroup collections of countries into arrays, etc...and it works pretty well. However, I would like to bring this into Access. So I could copy and paste all the shapes into an access form manually, but then they become pictures and I cannot change the colors of the countries (shaperange objects) to have the map act interactively as I can in excel. So I am thinking that I know how to use excel functions from access, and how to open excel from access. Is there a way to copy an object from excel (I know the file name and the shape name that i mean to copy everytime), and bringing it back to access to paste on a form? Atypical, I know, all my Access questions are. Thanks!

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• Where can I learn about JNDI strings?

  - by ferrari fan

  How do you know how to form a JNDI string? I know there must be a format and that the divisions must mean something but I haven't been able to find a good resource that explains them. For example: java:comp/env/wm/default. This is supposed to connect to a WorkManager in Websphere with the name of default. But what does the "java", "comp", "env" mean? I know what the wm/default mean because that's the JNDI name put in the WorkManager, but what does the rest mean? Thanks

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• How to create new account using servlets

  - by Alvin

  I want to know how can I create new account using servlets in post method? I'm currently following MVC design pattern, and I want to know if I pass the required data to register new account from JSP page, then how can I get that data in post method? As request.getParameter() method returning me null. How can I know that post method is calling to create new account? How can I pass all the relevant user information from servlets to model class for registering data to the database table?

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• How popular is C++ for making websites/web applications?

  - by Vilx-

  I don't know why this is question is bugging me, but time after time I come back to the though - why not make websites in C++? So far I know of none (except a rumor about Yahoo). Most use PHP, Java or ASP.NET. Some are built on Ruby or Python, but even those are minorities. At the same time, looking at StackOverflow, it seems that C++ is still a very popular language with many projects written in it. Why not for webpages? So - what do you know about this subject? Are there any websites written in C++? Are there any framewroks/libraries that help doing this? Have YOU ever done it? If yes, did you run into any fundamental problems and would you recommend this to others?

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• How do I sync Dreamweaver site definitions across 2 computers?

  - by baritoneuk

  I use Dreamweaver on my laptop and Desktop PC and frequently change between them. I keep all my sites synced using Syncplicity (similar to Dropbox, which indecently I also use) I want my site definitions to be synced across the two computers. If I add a new site on one computer I want it to appear on the other one. I know I can export all sites on one computer and then get Syncplicity to sync the files to the other computer at which point I can import them. However this relies on me remembering to do this each time I add a new site, and it's also quite time consuming. As far as I can tell, Dreamweaver (at least upto CS4- not sure about CS5) stupidly stores the site definitions in the registry. I really don't know why they do this- if they stored it in xml files then I could easily sync the information. Does anyone know if what I am asking is possible?

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• Android: Is there a universal way to send the MMS on any android devices?

  - by Roces

  This code works on the plain google devices with native android system. But there is no MMS app in the list on htc sense devices and I don't know about Motorola Blur etc.: final Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND); emailIntent.setType("image/png"); emailIntent.putExtra(Intent.EXTRA_STREAM, uri); context.startActivity(Intent.createChooser(emailIntent, context.getString(R.string.send_intent_name))); This code works on the htc sense but not from the Chooser, what I really need: Intent sendIntent = new Intent("android.intent.action.SEND_MSG"); sendIntent.putExtra(Intent.EXTRA_STREAM, uri); sendIntent.setType("image/png"); context.startActivity(sendIntent); But I don't know how to combine this code samples together and I don't know how to determine Htc Sense ui programmatically. Is it right way to support different type of devices? Thank you for answers.

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• Hidden Features and Dark Corners of STL?

  - by Andrei

  C++ developers, all know the basics of C++: Declarations, conditionals, loops, operators, etc. Some of us even mastered the stuff like templates, object model, complex I/O, etc. But what are the most hidden features or tricks or dark corners of C++/STL that even C++ fans, addicts, and experts barely know? I am talking about a seasoned C++ programmer (be she/he a developer, student, fan, all three, etc), who thinks (s)he knows something 99% of us never heard or dreamed about. Something that not only makes his/her work easier, but also cool and hackish. After all, C++ is one of the most used programming languages in the world, thus it should have intricacies that only a few privileged know about and want to share with us. Boost is welcome too! One per post with an example please P.S Examples are important for other developers to copy and paste!

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• what causes the .NET SerialPort class DataReceived event to fire?

  - by Klay

  I understand from the MSDN docs that the event DataReceived will not necessarily fire once per byte. But does anyone know what exactly is the mechanism that causes the event to fire? Does the receipt of each byte restart a timer that has to reach, say 10 ms between bytes, before the event fires? I ask because I'm trying to write an app that reads XML data coming in from a serial port. Because my laptop has no serial ports, I use a virtual serial port emulator. (I know, I know--I can't do anything about it ATM). When I pass data through the emulated port to my app, the event fires once for each XML record (about 1500 bytes). Perfect. But when a colleague at another office tries it with two computers connected by an actual cable, the DataReceived event fires repeatedly, after every 10 or so bytes of XML, which totally throws off the app.

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