Search Results

Search found 14602 results on 585 pages for 'objected oriented design'.

Page 490/585 | < Previous Page | 486 487 488 489 490 491 492 493 494 495 496 497  | Next Page >

  • Python - network buffer handling question...

    - by Patrick Moriarty
    Hi, I want to design a game server in python. The game will mostly just be passing small packets filled with ints, strings, and bytes stuffed into one message. As I'm using a different language to write the game, a normal packet would be sent like so: Writebyte(buffer, 5); // Delimit type of message Writestring(buffer, "Hello"); Sendmessage(buffer, socket); As you can see, it writes the bytes to the buffer, and sends the buffer. Is there any way to read something like this in python? I am aware of the struct module, and I've used it to pack things, but I've never used it to actually read something with mixed types stuck into one message. Thanks for the help.

    Read the article

  • No recent books on MPI: is it dying?

    - by Jono
    I've never used Message Passing Interface (MPI), but I've heard its name thrown about, most recently with Windows HPC Server. I had a quick look on amazon to see if there were any books on it, but they're all dated around 7 or more years ago. Is MPI still a valid technology choice for new applications, or has it been largely superceded by other distributed programming alternatives (e.g. DataSynapse GridServer)? As it's not really an implementation, but rather a standard, what is the likelihood (assuming it's not dead) that learning it will result in better design of distributed programming systems? Is there something else I should be looking at instead?

    Read the article

  • Is c++ explicit conversion really that bad?

    - by LoudNPossiblyRight
    My knowledge in c++ at this point is more academic than anything else and in all my reading thus far, the use of explicit conversion with named casts (const_cast, static_cast, reinterpret_cast, dynamic_cast) has come with a big warning label (and it's easy to see why) that pretty much implies explicit conversion is symptomatic of bad design and should only be used as a last resort in desperate circumstances. So i have to ask: Is explicit conversion with named casts really just jury rigging code or is there a more graceful and positive application to this feature? Is there a good example of the latter? Thanks in advance.

    Read the article

  • How do I enumerate installed OleDb providers for current processor architecture?

    - by Rowland Shaw
    I've a project that connects to a dBase format database file, that I've always done in the past with a connection string of the form of: PROVIDER=Microsoft.Jet.OLEDB.4.0;Data Source=MyData.dbf;Extended Properties=dBASE 5.0 I've had to revisit this recently, and have found that when attempting to create an OleDbConnection with that connection string on x64 machines, that have an x86 install of Office on it, it throws an exception. A quick hack of a fix shows that forcing the application to target x86 only makes it work, but I was hoping to be able to tidy this up and check in advance whether it would fail to create the connection, so that I could customise my import options to suit the available providers. Is it possible to enumerate the available data providers for the current processor architecture? (other than relying on catching the exception -- after all, the Framework Design Guidelines suggest that you should only throw in exceptional circumstances, and you have a method to check if something would throw an exception)

    Read the article

  • A programming language for teaching data structures and algorithms with? [closed]

    - by Andreas Grech
    Possible Duplicate: Choice of programming language for learning data structures and algorithms Teachers have different opinions on what programming language they would choose to teach data structures and algorithms with. Some would prefer a lower level language such as C because it allows the student to learn more about what goes on beyond the abstractions in terms of memory allocation and deallocation and pointers and pointer arithmetic. On the other hand, others would say that they would prefer a higher level language like Java because it allows the student to learn more about the concepts of the structures and the algorithm design rather than 'waste time' and fiddle around with memory segmentation faults and all the blunders that come with languages where memory management is manual. What is your take on this issue? And also, please post any references you may know of that also discuss this argument.

    Read the article

  • how to get xml html after transpose and databind()

    - by rlee923
    Hi. I have some code that uses xsl and xml. The Xml control is on the design page. The xml control id is xmlApplication The xmlstring is generated and xsl has the format with all the tables and cells etc. Here is a part of thecode of a page which generates the final product which shows the xml in a certain format. xmlApplication.Document = xmlDoc; xmlApplication.Transform = transApp; xmlApplication.DataBind(); I am guessing after xmlApplication.Databind(), xmlApplication will be converted into something that can be put inside . Is it possible to grab as a string? Please let me know if I have a wrong idea abut this. Thanks a lot.

    Read the article

  • Camera Stream in Flash Problem

    - by Peter
    Please help me fill the question marks. I want to get a feed from my camera and to pass it to the receive function. Also in flash builder(in design mode) how do I put elements so they can play a camera feed?? Because as it seems VideoDisplay just doesn't work public function receive(???:???):void{ //othercam is a graphic element(VideoDisplay) othercam.??? = ????; } private function send():void{ var mycam:Camera = Camera.getCamera(); //mycam2.attachCamera(mycam); //sendstr is a stream we send sendstr.attachCamera(mycam); //we pass mycam into receive sendstr.send("receive",mycam); }

    Read the article

  • C/C++ GUI framework to create distinctive window style

    - by genesys
    Hi! Can someone please tell me a GUI framework (for Windows. doesn't need to be cross platform) that allows me to specify the design of the UI elements very precisely? For example, the Windows and UI elements of Adobe products look different than other Windows applications. I'm looking for a framework that would allow me to create a GUI in that style - or any other style I invent, from the shape of the window, to the visual appearance of any scrollbar, button minimize/maximize buttons and so on. any recommendations? Thanks!

    Read the article

  • Store database, good pattern for simultaneous access

    - by dygi
    I am kinda new to database designing so i ask for some advices or some kind of a good pattern. The situation is that, there is one database, few tables and many users. How should i design the database, or / and which types of queries should i use, to make it work, if users can interact with the database simultaneously? I mean, they have access to and can change the same set of data. I was thinking about transactions, but I am not sure, if that is the right / good / the only solution. I will appreciate some google keywords too.

    Read the article

  • A Combinations of Items in Given List

    - by mecablaze
    Hello stackoverflow, I'm currently in Python land. This is what I need to do. I have already looked into the itertools library but it seems to only do permutations. I want to take an input list, like ['yahoo', 'wikipedia', 'freebase'] and generate every unique combination of one item with zero or more other items... ['yahoo', 'wikipedia', 'freebase'] ['yahoo', 'wikipedia'] ['yahoo', 'freebase'] ['wikipedia', 'freebase'] ['yahoo'] ['freebase'] ['wikipedia'] A few notes. Order does not matter and I am trying to design the method to take a list of any size. Also, is there a name for this kind of combination? Thanks for your help!

    Read the article

  • C#: Creating an editable object inside a PictureBox

    - by ET
    My goal is to let the user click on a specific location on a map to add a Placemark, and then edit the placemark by click its icon (change its name, move it around, etc). I am using a PictureBox to show the map, and by registering the MouseDoubleClick event I am drawing an Image on the map with GDI+ DrawImage() method. The problem is that after the placemark's Image was drawn, it does not editable: the user cant click the icon and move it around, change its name etc. Is there any other design pattern I can follow? maybe using other controls... ?

    Read the article

  • Magento: custom module layout override not working

    - by Socrates
    I have a small custom module which is supposed to show on all product pages, but it doesn't. It only shows when setting its reference to "content", but I want it to display witin the already existing product view divs, thus, display it within the "product.info" reference. Here's my code: app/design/frontend/default/company/layout/company/socialbuttons.xml <?xml version="1.0"?> <layout> <catalog_product_view> <reference name="product.info"> <block type="core/template" name="company_socialbuttons" template="company/socialbuttons.phtml" /> </reference> </catalog_product_view> </layout> I've spent hours finding the error, without success and if I can't find a solution soon I will do it the ugly way (calling the phtml inside the parent phtml). What am I doing wrong?

    Read the article

  • cross domain DOM access and manipulation in Java ?

    - by gaqer
    In my Java app, how can I incorporate the browser (which loads and renders URLs) in Swing and access it's DOM and manipulate HTML ? How can you embed such browser in a Rich Internet Application and access it's DOM ? More specifically, Vaadin ? Is there a HTTP proxy class that can load an external URL, and render it to the user ? This was what I was doing on LAMP stack....but I want to switch to Vaadin or some Java web framework where I can just use Java to do everything from server-side to client-side logic design, so I can focus more on application logic. (aka looking for developer friendly frameworks like Vaadin). Thank you and have a great weekend !

    Read the article

  • Dash surrounding text

    - by Brandon Hansen
    Given the above dynamically generated text (meaning that I can't just use an image), I am trying to recreate the design using just html and css selectors. I would like to just use a single h4 with the containing text, but am open to other solutions. I would prefer to not use absolute positioning, but again, if that is the only way, then so be it. I have tried surrounding with span tags, but those are inline elements that don't have an inherent width. The h4 will be nested within a div, though not always of the same class or id. Any ideas or resources to get me started?

    Read the article

  • Django, javascript and code ruse problem

    - by dragoon
    Hi, I have some sort of a design problem with my Django AJAX application. I have a template where I initialize js variable from django context variable like so: var test = "{{ test }}"; This variable is than used in a number of js functions that are needed for interface to work properly. So now I'm trying to reuse some content from this page in another page that loads it dynamically on some user interaction using jQuery.load(..), and I don't see any way how I can initialize that variable, so js functions don't work now. Is there any solution for this or may be I'm doing it wrong? Thanks.

    Read the article

  • I need to do a BASICE For Loop algorithm for a java Pyramid

    - by user1665119
    Question 2. USE THE FOR LOOP. Design and write an algorithm that will read a single positive number from the keyboard and will then print a pyramid out on the screen. The pyramid will need to be of a height equal in lines to the number inputted by the operator. Your program is not to test for negative numbers, nor is it to cater for them. For your test, use the number 7. If you would like to take the problem further, try 18 and watch what happens. Example input: 4 Example output: 1 121 12321 1234321

    Read the article

  • How to use database to generate multiple folder content page?

    - by VenomVipes
    Scenario :I am trying to build a Mobile Entertainment Portal. It will enable users to download Music & Movies to their Cell Phones... Problem Exp : Suppose I upload 100 folders of Songs, each folder is for one Album. I want a way to generate a page with all the folders name (Album Name) in it. If user click on the page, they should be taken to a page where they get list of all songs in the album. Clicking on any song name will let them download it. Can it be done anyway or will I have to manually design each of the 3 pages for each album. If I do that, its time consuming and also will be difficult to change anything like footer, header...

    Read the article

  • Browser extensions to re-render the page using an updated version of my CSS file, without reloading the page itself

    - by Eduardo León
    I want to learn Web UI design. (I know, I know. Being a programmer puts me at a disadvantage. But I want to try anyway.) Thus, I would like to "debug" my CSS files. Once of the biggest annoyances I have found is that I cannot test a change in my CSS files without reloading the whole page. Sometimes, the page is too big. Sometimes, a lot of elements were brought to the page after lots of clicks, because my pages rely too heavily on AJAX. Sometimes, I just hate hitting Command+R all the time. Is there any extension for any of the major browsers (preferably Safari and/or Chrome) that re-renders the page using an updated version of the CSS file, without reloading the whole page itself?

    Read the article

  • Popular .NET Compact Framework open source applications / components

    - by ollifant
    In my company I am responsible for the development of a .NET CF application which runs on top of Windows CE. We have invested much time in the development of a GUI framework, a top-level design which handles authorizations and navigation on the device, a IoC customer, ... Now I was wondering if there are any other projects which show kind of best practices (for example what the prefered way of GUI drawing is). In the following there are some which I know: UI Framework for .NET Compact Framework 3.5 Project Resistance Amplite Application Port from IPhone* Several twitter clients CaveMen from LightWorkGames* What applications / components do you know? * actually not a application, but definetely worth to take a look

    Read the article

  • flex application transparent backbround

    - by simplemagik
    i have some problems with embedding swf into html page. Customer asked me to add some round corners to my application. I added. Then the design of the has changed and instead of black background i got ragial gradient( So, i need to make the corners of the swf transparent, but don't know how. wmode=transparent and backgroudAlpha param doesn't work. Need some help... :/ It's important that one solution i found works on Flash Builder Beta 2, but didn't work on Adobe flash builder 4.

    Read the article

  • Where to intercept resolution of controller/view in ASP.Net MVC for customizations?

    - by Jason Jackson
    I am trying to figure out where the appropriate place is to intercept the resolution of what view + controller is being called in ASP.Net MVC 2. I have a situation where I have a controller and a corresponding set of views. I also have the possibility of a customized version of both the controller and N of the views sitting in the project (or we may use something like Portable Views from the MvcContrib project). If the customized version of the controller or view(s) exists at run time, and the user satisfies certain criteria, I need to call the customized controller and use the appropriate customized view. At design/compile time we don't know what customizations may be in place. My first run at this was by using a custom controller factory that returns a custom controller if it exists. However, this controller is "wired up" to the standard view, and I cannot figure out how to return the customized view if it also exists. To complicate matters, there may be no customized controller but customized views, and visa-versa.

    Read the article

  • I have a problem implementing states in my Flex app, please help!

    - by ben
    Hey guys, I'm trying to work out how to use states in my Flex app. I've created two states, State1 and Stage 2. Both are based off the base state. I've created a few visual elements for State1, and given each of them includeIn="State1". But when I'm in design mode and click on State2, these elements are still visible? Why is that? If I try to delete them while State2 is selected, all that happens is RemoveChild is added to the State2 tag. Is this how I'm supposed to do it? Thanks for reading!

    Read the article

  • Why doesn't Python's `re.split()` split on zero-length matches?

    - by Tim Pietzcker
    One particular quirk of the (otherwise quite powerful) re module in Python is that re.split() will never split a string on a zero-length match, for example if I want to split a string along word boundaries: >>> re.split(r"\s+|\b", "Split along words, preserve punctuation!") ['Split', 'along', 'words,', 'preserve', 'punctuation!'] instead of ['', 'Split', 'along', 'words', ',', 'preserve', 'punctuation', '!'] Why does it have this limitation? Is it by design? Do other regex flavors behave like this?

    Read the article

  • Why has Foundation 4 made its grid classes less natural and readable?

    - by Brenden
    The Background I love responsive CSS grids. I hate Bootstrap's complex class names. I fell in love with Foundations human readable class names. The Problem With Foundation 4, they have changed four columns to large-4 small-4 columns and in my opinion this makes the HTML markup less clear. This style of CSS class names is exactly why I switched from Bootstrap to Foundation. The Question What advantage is gained by Foundation 4's Grid in making this change? It seems that you can have a different grid layout on smaller screens via media queries, but I can't think of a design that would require this. Note: I've been focused on native mobile development and therefore I may be missing out on recent best practices.

    Read the article

  • Searching for a complex and well-designed PHP OOP application to learn from

    - by Raveren
    Basically, I am diving ever deeper into complex programming practices. I've almost no friends that are experienced (or more experienced than me) programmers to learn from, so I am looking for the next best thing - learning from the work of strangers. Can anyone recommend a real world finished and working application written well and OOP-centered. I'd like to take and analyze its source. Bonus if it's based on Zend Framework. What I am interested most in is objects that unlike desktop applications, have only one real operation done to them (or to their representation in DB or session) during their lifetime (or pageload), like user-logIn(). I'm interested in optimal and reusable design patterns and their real life implementations.

    Read the article

< Previous Page | 486 487 488 489 490 491 492 493 494 495 496 497  | Next Page >