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• Do (statically linked) DLLs use a different heap than the main program?

  - by happy_emi

  I'm new to Windows programming and I've just "lost" two hours hunting a bug which everyone seems aware of: you cannot create an object on the heap in a DLL and destroy it in another DLL (or in the main program). I'm almost sure that on Linux/Unix this is NOT the case (if it is, please say it, but I'm pretty sure I did that thousands of times without problems...). At this point I have a couple of questions: 1) Do statically linked DLLs use a different heap than the main program? 2) Is the statically linked DLL mapped in the same process space of the main program? (I'm quite sure the answer here is a big YES otherwise it wouldn't make sense passing pointers from a function in the main program to a function in a DLL). I'm talking about plain/regular DLL, not COM/ATL services EDIT: By "statically linked" I mean that I don't use LoadLibrary to load the DLL but I link with the stub library

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• symfony and entity manager

  - by Jenis Sam

  I want to do the following I have a database table of students, and I want to output each student name in a check box list. so checkbox. Student 1 checkbox. Student 2 Where the value of the checkbox is the student's ID. How can I do that using Symfony? I want teachers to be able to select one or more checkboxes. I tried following this tutorial: http://symfony.com/doc/current/cookbook/form/form_collections.html and using collections, but I am lost...

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• Filling in a form client-side [Javascript]

  - by Hawker

  I'm coding up a small Vista/7 sidebar gadget for our web based employee schedule system and I've run into a Javascript problem that my Google-FU can't solve. I can't figure out how to fill in a login form from the client. I'm creating a new ActiveXObject, navigating to the site, but lost as to where to go from here. var conn = new ActiveXObject("Microsoft.XMLHTTP"); conn.open("POST", "url", false); conn.send(null); Can access the form from the ActiveXObject based on the form id? I'd also assume I'm going to need to change a few headers for a POST vs. a GET? Thanks for any tips or links to references! I can't seem to find much and JavaScript isn't my forte.

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• Vector of objects

  - by Paul

  I've got a abstract class class A { public: virtual void somefunction() = ; }; and some different classes that inherit this class: class Ab { public: void somefunction(); }; etc. I want to make a vector containing some objects of these classes (how many depends on input parameters) so I can access these easily later. However I'm a bit lost on how to do this. My best idea is vector<A> *objectsVector; Ab AbObject; objectsVector.push_back(AbObject); However this gives me a huge amout of errors from various .h files in /usr/include/c++ How should i solve this?

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• Merging Brach into Trunk...

  - by jimbo

  Now I know this has been asked a few times, but i'm still not getting it... I use Versions which is doing a great job, I am also using beansalk and they are working nicely together. However, I have been working on a branch of the trunk (sandbox) which I now want to merge back into the trunk. Versions can't do this, so it's into Terminal. Sandbox is reversion 256 and the Trunk (because of a few other amends) is 255. Any help on this would be great, and read a few bits, but still a little lost...

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• Using memcached/APC for session storage?

  - by Industrial

  Hi everybody, I had some thoughts back ago about using memcached for session storage, but came to the conclusion that it wouldn't be sufficient in the event of one or more of the servers in the memcached pool were about to go down. A hybrid version is to save the main database (mySQL) from load caused by reads would be to work out a function that tries to fetch the data from the cache pool, and if that fails gets it from the database. After putting some more thought into it, I started to think about using APC cache for session related data. If our web server would go down, sessions would be lost either way, so storing them in a local APC or a localhost memcached server maybe isn't that bad? What's your experiences?

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• How to ensure project management questions get answered

  - by Chuck Vose

  Background: On a new project I've found myself 3 levels removed from my actual source of information. I report to my PM, who reports to our contractor, who reports to the actual client. Getting answers to questions has become something of a problem and I'm curious to know what people recommend. Needs: I'm trying to find a technology or disciplined strategy that will assist me in ensuring that the questions I'm asking are getting answered: Correctly without much modification of the original question Quickly so the original context isn't lost Completely so that if a question is deferred I don't forget about it. Does anyone know of a software suite that assists in this matter or do you have any personal discipline strategies that worked for you? Thank you for the guidance

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• Can I use MFC objects in STL containers?

  - by Jesse Stimpson

  The following code doesn't compile for me in MSVC2005: std::vector<CMenu> vec(10); CMenu is an MFC menu object (such as a context menu). Through some testing I learned that CMenu does not have a public copy constructor. To do what I wanted to do, I needed to use a dynamic array. CMenu* menus = new CMenu[10]; // ... delete [] menus; Of course, now I've lost all the benefits of using an STL container. Do I have any other options?

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• Is it possible to add .NET code (sections) to a WordPress site?

  - by Jason

  Our shop is primarily .NET but because of the lack of any really good popular .NET CMS products, we have chosen to use WordPress (and Drupal at times) for our public facing sites. I realize this is highly subjective, but it is the conclusion we came to for our purposes. One could certainly make a case for DotNetNuke and others, but that is another conversation. I would like to know if I can integrate small components into WordPress sites, primarily to do simple forms (logon, lost password, contact us, change user settings, etc...) Can I do this with an iFrame or another method that I am not thinking about?

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• How to determine the radius and center of a circle when only three noncollinear points are known?

  - by Bob

  I'm working on a C# program that deals with Oracle Spatial geometry. When circle data is stored in a geometry field only three non-collinear points are stored to represent the circle. The problem is that I need to use this data on a Google Maps web page and need the center point and radius of the circle (since my circle drawing function uses that information). Can anyone help with the math involved and translating said math to C#? I think this page may hold the answer, but I'm having a hard time following it. There are formulas for radius and center given three points, but then they define the variables as matrices and I get lost at that point. How would I solve that in code?

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• Javascript clone form?

  - by user202987

  I need to copy a form information with all types of elements and send it with AJAX. Tried these: 1. cloneNode on the form. - Doesn't work with IE, only copies text stuff properly. cloneNode on each element. Doesn't work with IE, only copies text stuff properly. Making new textareas for each element, and copying the value in. Doesn't work for textareas in IE, formatting is lost. I imagine a combination of those 3 would work for IE and FF but is there any decent solution to this? Shortness of code is a priority.

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• Why the toolbar button icon is grey at runtime?

  - by OhrmaZd

  I"m setting the icon of a toolbar button (using Infragistics component library for the toolbar), The problem is that on design time the icon is showing normally. But at runtime the icon become greyed, though the drawing of the icon is still apparent, but its colors are all lost and the shape of the icon image is grey. So i'm wondering if it's colour related bug, or I need to tweek something in VS, or it is a bug in the library i'm using i.e. Infragistics. So anyone faced that problem before and fixed it?

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• Wpf button click when application window is not active

  - by byte

  I have a WPF application window with a button (ButtonA) which has a command binding to a View Model property. When another application is launched the focus is lost and application window is deactivated. Clicking ButtonA now doesn’t execute the command but instead only activates the window and sets the focus to the button. 2nd click is required to fire the command. The desired functionality is on click of ButtonA while the application window is not active, the application window activates and command associated with ButtonA is executed. I have also tried removing the command and adding a click handler for test purpose but this displays same behaviour. I appreciate any help with this issue.

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• Using jQuery find string A or B and replace based on css class and ID

  - by Jason

  Using jQuery, how do you check for and replace the occurrence of stringA or stringB when it falls under a specific css class and ID? stringA = " | " stringB = "|" css = .login #bav <p id="nav"> <a href="#">oh ya</a> | <a href="#" title="Password Lost and Found"></a> </p> I have variations of this: jQuery(document).ready(function($) { $(".login #nav").replaceText( /testA|testB/gi, "fooBar" ); }); });

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• How do you tell git to permanently ignore changes in a file?

  - by Malvineous

  Hi all, I'm working with a git repository that's storing data for a website. It contains a .htaccess file, with some values that are suitable for the production server. In order for me to work on the site, I have to change some values in the file, but I never want to commit these changes or I will break the server. Since .gitignore doesn't work for tracked files, I was using "git update-index --assume-unchanged .htaccess" to ignore my changes in the file, however this only works until you switch branches. Once you change back to your original branch, your changes are lost. Is there some way of telling git to ignore changes in a file and leave it alone when changing branches? (Just as if the file was untracked.)

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• Add my own RSS reader app on a http://feeds2.feedburner.com/exampleofname "subscribe feed using" lis

  - by user333647

  Hello everyone, I'm doing a RSS reader for a University Project. The feed urls have to be added by hand tipically with the copy/paste method, and I don't like this option because is poor for the users. My question is: can I do like in webpage http://feeds2.feedburner.com/microsiervos a list of web applications (Google Reader, Netvibes, etc.). There is a way to do so? I may have to create a firefox addon? I'm quite lost, I think... Thank you very very much, and sorry for my bad english but in this F***ing country that is Spain, there are lots of FIESTA and what you want but null english education... hehehe Byeeee!

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• SVN: How can I update an existing repository from an exported copy ?

  - by user206705

  Late one afternoon, I did an export of my project repository, and took home my work on my USB key. I've added many changes to the exported project, and now, having returned to the workplace, I want to update the repository with the project that I've now got. To complicate matters, I've made updates to the project in both the main trunk and a branch - and I'd like to update the repository to reflect all those changes. I'm new to SVN and have been relying on tortoise SVN, but I'm a bit lost now. Would I be best to delete the repository and recreate it from the copies/branches I now have? thanks

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• How do you know when you should change the programming domain you're working in?

  - by thecoop

  I've recently become one of the most senior developers in one division of the company, and am generally the 'go-to' guy about questions in the problem domain the division works in, however I feel I'm not learning anything new. To continue to learn new things I would have to change division and work on something competely different, but then my current domain knowledge would be useless & I would start off with knowing nothing again. Obviously, this is quite a large decision & I'm hesitant to lost my 'status'; and the knowledge I do have would be useless. How do you know when you should change the programming domain you work in?

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• How can I use multithreading in a Windows Forms application to update a progress bar?

  - by Steve Syfuhs

  There are two objects. The Windows Form with a button and a progress bar, and another object that handles an algorithm. In the algorithm object there is an event, and a property. The event is ProgressChanged, and the property is Progress (which is an int). In the calling window, the button starts off a set of steps in the algorithm object. As each step (or substeps) occurs, the ProgressChanged event fires, and in the window there is an event handler that essentially increments the progress bar relative to the Progress property. The problem I am running into is that because the algorithm has a possibility (and high liklihood) of running a relatively long time, I need to move it into it's own background thread and push the event back up to the window. My issue is that I'm not completely sure what I'm doing when it comes to multi-threading. I've looked at Control.Invoke and I'm a little lost. Can someone point me in the right direction?

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• How can I debug a Perl program that suddenly exits?

  - by taw

  I have Perl program based on IO::Async, and it sometimes just exits after a few hours/days without printing any error message whatsoever. There's nothing in dmesg or /var/log either. STDOUT/STDERR are both autoflush(1) so data shouldn't be lost in buffers. It doesn't actually exit from IO::Async::Loop->loop_forever - print I put there just to make sure of that never gets triggered. Now one way would be to keep peppering the program with more and more prints and hope one of them gives me some clue. Is there better way to get information what was going on in a program that made it exit/silently crash?

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• When to save a variable in viewstate?

  - by Umut

  Hi, I have searched the web for the answer and saw that mostly variables are saved in viewstate on page.prerender event. However, when I save a variable in viewstate on prerender or load events, how can it store the changed value of the variable? Let's say, after page load, user clicked a button and the value of the variable was changed in onClick event of the button. Then the postback event raised since the button was clicked. According to me, the new value should have been lost and cannot be saved in the viewstate if I save the variable in the viewstate only in prerender event. Shouldn't I save the variable in the viewstate just before the postback event rises? Am I wrong? If so, how can viewstate store the new value of the variable? Thanks for the answer in advance..

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• How do you revert a file to a revision within an integration in Perforce?

  - by tenpn

  I have two branches, let's call them mainline and dev1. I regularly integrate a file from mainline to dev1. The last-but-one time I integrated the file, it was at revision 3 in mainline. The last time, it was at revision 5. Now for mysterious reasons lost to the sands of time, I want to work in dev1 with revision 4 of the file from mainline. Is that possible? I can't integrate it across as P4V complains that all revisions have already been integrated. I've tried right-click-get this revision on the revision graph, but that only updates which version of the file I have in mainline, not in dev1.

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• Python 3 order of testing undetermined

  - by user578598

  string='a' p=0 while (p <len(string)) & (string[p]!='c') : p +=1 print ('the end but the process already died ') while (p <1) & (string[p]!='c') : IndexError: string index out of range I want to test a condition up to the end of a string (example string length=1) why are both parts of the and executed is the condition is already false! as long as p < len(string). the second part does not even need executing. if it does a lot of performance can be lost

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• PHP OOP: Parenting objects/functions?

  - by Industrial

  Hi everyone, How is parenting functions in PHP done properly according to the following example? Can I make sure that my array isn't overwritten and the previous values inside array lost, on each addArray call? function arraybase() { $this->array = new ArrayObject(); return $this; } function addArray($value) { parent::$this->arraybase(); $this->array->append($value); return $this; } $this->addArray('1')->addArray('2')->addArray('3'); // outputs: Array ( [0] => 3 ) Thanks a lot!

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• Functioning of Intent.action_pick_activity??

  - by chris

  Hello everybody!! Here is I would like to set up in my application, the function of sharing (facebook, twitter, e-mail) as that of YouTube for example but I get lost little. By looking I saw that apparently it would be necessary to use Intent.action_pick_activity but I do not manage to see how using it on my case. What is that somebody has already implemented this kind of thing? Either what is what somebody knows where I can find examples?? Thanks to all!

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