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• How can you determine if Control.Visible is set via property or if the value is inherited

  - by JDMX

  I need to find a way to determine if the Visible property of a control is set via a property change or if is inheriting it value from its parent. Using the Reflector, I find that the functions this.GetVisibleCore() and this.GetState() are both internal methods so I cannot call them. The widgets themselves are created dynamically so I do not want to attach a method to the VisibleChanged event just after the creation of each widget so can try to monitor this property. If I have to, I guess I will but I am looking for something jsut a bit more elegant.

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• How to install Multiple ActiveX Controls per one step?

  - by Eugene

  My .ocx contains two ActiveX controls and I use both of them on one page. When user comes to page he gets two install confirmations for the same binary. After the first installation and page reload he gets one control displayed and “the website wants to run the following add-on...” yellow bar with control’s run confirmation for the other. I have only two possible solutions: Adding my CLSID’s to IE’s pre-approved control list, but I guess I cannot do it in the case of Non-Admin installation. Besides I consider this way as unreliable. Use the third control-container for hosting all other controls. It seems to my too complicated. Actually I’m not sure it can be done. Controls are used from the WEB, so I cannot use any administrative tools for installation. Is it possible to do all installation actions with one step without twice installation or run confirmation? Are there any “Best practices” for my case?

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• Should I have a separate copy of all CakePHP files for every new application?

  - by BicMan

  I'm extremely new to CakePHP. From what I've gathered, it seems like I can have multiple applications that all share the same app and cake directories. So, let's say I have two applications. CakeFacebookApp and GenericCakeBlog. These applications are completely separate from each other and will have completely separate URLs, but they will reside on the same webhost. Should they both be within the same cake structure, or should they each have a full cake install in separate directories? Technically, I'm sure it will work either way, but I guess I'm looking for a best practice approach. Thanks.

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• Release an object without a pointer?

  - by Kai Friis

  I’ve just started developing for iPhone and am trying to get my head around memory management. I made a small program that shows a map and an annotation on the map. For the annotation I made a simple class that implements the MKAnnotation protocol. To create and add the annotation I wrote this: [self.myMapView addAnnotation:[[MyAnnotation alloc] init]]; It worked fine until I tried to release the object. Nothing to release. This is what I would have done in C#, I guess it doesn’t work without garbage collection? So is this the only way to do it? MyAnnotation *myAnnotation = [[MyAnnotation alloc] init]; [self.myMapView addAnnotation: myAnnotation]; [myAnnotation release];

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• Can we view objects in the JVM memory?

  - by Sebastien Lorber

  Hey, At work we found that on some instances (particulary the slow ones) we have a different behaviour, acquired at the reboot. We guess a cache is not initialized correctly, or maybe a concurrency problem... Anyway it's not reproductible in any other env than production. We actually don't have loggers to activate... it's an old component... Thus i'd like to know if there are tools that can help us to see the different objets present in the JVM memory in order to check the content of the cache... Thank you!

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• Can I embed video on external sites while still using tokens to protect the content?

  - by JKS

  On our own website, it's easy to protect against direct links to our video content by grabbing a token through AJAX and verifying the token through PHP before the file download is started. However I'm also researching how I could provide an embed feature, like YouTube or vimeo etc., without compromising this security feature. The problem is that the embed code I want to provide should look something like <object>...<embed>...</embed></object> -- but I don't know how to grab and append the token to the filename. I mean, I guess I could attach a script that did some gnarly JNOP business, but that's too dirty. I'm using JW Player for the actual video container. Huge thanks to anyone who can help...

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• Connect to an existing process

  - by user360807

  Hole thing is happening on the mac os x. Let's assume that I've opened an program by clicking on an .app icon. It's a python program with GUI which has a separate process that waits for a user input. But as I've opened it by clickin .app icon I dont have access to it's input as I would have if I opened it in Terminal. And the question is: How can I connect new Terminal window to this running program? I tried pipes but I'm not sure how to use them correctly. My guess was to find PID of the app that is running and then pipe to this program by giving a PID. But I have no idea how to do it. I hope you were able to understand what's the problem. Sorry for my weak english :)

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• Umbrella websites with Microsites & Blogs - recommendations

  - by pingu

  Hi guys, I'm in the process of scoping a solution for an events organisation. Their main website features information about them and blog entries etc, but they hold major events which require microsites (domain.com/event). The microsites all have a different look-and-feel, different nav structure, and custom content-managed components. The one thing that's common across everything is the blog - it will have a category for each event under which users can post. How would you guys implement this? The solution needs to be PHP, and my initial thought was CodeIgniter but if possible I'd like to avoid building the blog functionality - so I guess I could integrate it with EE or Wordpress. If anyone has any other suggestions they would be most appreciated.

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• Hiding the console window in a system() call

  - by Justen

  Continuing from this question With each system call, the function constructs a set of parameters and sends them off to another program that is just console-based. Is there a way I can make it so that no console window pops up for each call? I've done a search but the ones that aren't a linker issue just aren't working for me. For instance, I tried the _execl call and System::Diagnostics::Process^ myProcess = gcnew System::Diagnostics::Process; but they aren't working. The _execl will bring a console window up, scroll a bunch of stuff (from the program I called I guess), then close the my app and not even do what it was supposed to do. The System::Diagnostics::Process^ myProcess = gcnew System::Diagnostics::Process; doesn't seem to execute what I want either because the output folder that should contain files, contains nothing. So I'm open for ideas.

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• Tracking EXC_BAD_ACCESS on iPad

  - by Aleks

  I've been using this code to create my UIWindow UIMyWindow* win = [[UIMyWindow alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]]; UIMyWindow isn't anything special it just has a pointer to a C++ class that does some wrapping of ObjectiveC. Recently my application start crashing after adding some line of code that doesn't have to do anything with the error. The line of code that I added is just allocating a C++ object but the program execution never reaches this line. Interesting enough my code works in Release. My only guess is that I made some memory corruption on a completely different place. My questions are: What type of memory corruption that can be? And is there some good practices to track them down?

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• Is SELECT INTO able to affect data from its original table during UPDATE

  - by driveby

  Whilst asking this question asp.net scheduling timed events user murph posted some insightful information: Point about this is that its very, very simple - you have an process for exchange that is performing a clearly defined task and you have a high frequency task that is not doing anything particularly complex, its a straightforward query (select from table where sent = false and send at < value) - probably into temporary table so that you can run a single query update after you've done the sends - that you can optimise the index for. You're not trying to queue up a huge pile of event triggers, just one that fires once a minute and processes things that are due. Is it possible to SELECT data from table X INTO table Y and have the UPDATES that are performed on table Y pushed into table X? I guess the alternative would be that the data gets updated in table Y then an update command can be run on table X based on the data in table Y. What would be the advantage of selecting into another table? Thank you,

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• jquery simplemodal question (about window overflow)

  - by Matthew Steiner

  I noticed that if the height of the window is too small (meaning that the modal is taller than the window is), then even scrolling up or down won't reveal more of the modal, since it is constantly centering itself to the center of the window. Is there a good way of changing this? I have a tall modal that if someone's using a short monitor it may cause problems. Not to mention just general usability. I would guess that somewhere in the code you can test for if the window height is less than the modal to not worry about centering it vertically? Ideas?

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• Revisions: algorithm and data structure

  - by SODA

  Hi, I need ideas for structuring and processing data with revisions. For example, I have a database of objects (e.g. cars). Each object has a number of properties, which can be arbitrary, so there's no a set schema to describe these objects. These objects are probably saved as key-value pairs. Now I need to change property of an object. I don't want to completely rewrite it - I want to be able to go back and see history of changes to these properties, that's why I want to add new property and keep the old one (so I guess a timestamp would do the job of telling which property is the latest). At the same time I want to be able to get info about any object in a snap, with only latest versions of each of the properties. Any ideas what would be the best approach? At least please point me in the right direction. Thanks!

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• Get ExternalInterface definitions in Javascript

  - by Jamal Fanaian

  Is there a way to get a list of the exposed functions from a Flash object? For example, you could get a list of all methods in an object by executing: for (var i in object) { if (typeof object[i] == "function") { console.log(i); } } The only issue is that this won't expose any methods registered through the ExternalInterfaces API. I can try and see if the function exists (object['method']) and it tells me it is a function, but I would have to guess every existing method in this manner. NOTE: Obviously, I don't have access to the actionscript.

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• jQuery : how to manipulate indexes?

  - by Gabriel Theron

  Should not be such a hard question... I'm just having a hard time figuring out how to make operations on some jquery elements, particularly their indexes. Teh codez: $( "#docSlider" ).css("background-image", "url(../../bundles/mypath/images/maquette/img" + $( "#selectable li" ).index( this ) + (".jpg)")); I want to make the name of the picture I load depend on the index of a jQuery selectable. So I grab the index and try to add 1... but it can't work because "+" is also a concatenator. I've tried to parseInt as well, but it was always worth 0. How do I simply transform the index to an integer and then concatenate it with the rest of the string? Thank you in advance! Edit : I'm using a function that already exists, so I can hardly change the parameters (well, I guess I can't...)

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• Looking to eventually build a smartphone app...

  - by Brian L

  Hi all- I'm a young, inexperienced programmer (I've had a year of Java, some MATLAB, and HTML/CSS in school) but I've decided that to get better, I'm making it my goal to produce a simple smartphone app of some kind this year- probably either webOS or Android since I'm on a PC and can't afford a Mac just to write an iPhone app. So my question is, where do I start? I've read the threads about How to Write for Android and such, but I'm not sure I have enough Java experience to just jump right in. And then there's webOS which is based on JavaScript, correct? I guess I'd just like some input from more experienced folks. I have some Barnes and Noble book credit I'm looking to get rid of too, so if there's a guide you think would be useful, feel free to request. tl;dr: Programming newbie ultimately wants to build a simple smartphone app. Where do I start?

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• Sending information back from delegate [iPhone]

  - by Andy

  I'm using NSXMLParser in my RootViewController.m file. NSXMLParser *xmlParser = [[NSXMLParser alloc] initWithData:response_data]; [xmlParser setDelegate:self]; [xmlParser parse]; [xmlParser release]; I'm also implementing this method to add entries to a dictionary defined in RootViewController.m for later use: - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict However, I'd like to get more than one XML file and do different things when the file has finished; this sounds like I need to use external files as delegates. My question is: If I have the following implementation files (& their header files): RootViewController.m XMLDelegate1.m XMLDelegate2.m and set the ith NSXMLParser delegate to be XMLDelegatei.m, and get those files to return an NSDictionary that I can then add to the NSDictionary defined in RootViewController.m. I guess there are two methods of doing this: Use a method that I don't know about; or Use a better workflow I suspect it's 2, but hope it's 1. Thanks, Andy

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• ASP.NET Session and target blank

  - by Lennart

  Hi I have seen a few posts regarding Session and using target blank to open a new page. But I still don´t get it. Im working with an application which opens from a link on an Intranet site. I guess it uses target blank to get it in a new window. (I don´t have the source). If both windows are closed (My application and the Intranet site) it seems like the Session is destroyed. I need that to happen when my application is closed. (ie, still leaving the Intranet site open). If I use the site in my testenvironment without opening it from a page with target blank, it seems like I get the expected behaviour. Web.config has: pages enableSessionState="true" Thanks

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• iPhone 4.0 Screen Resolution and writing robust code...

  - by Magic Bullet Dave

  Does anyone know what will happen with existing apps when they run on the iPhone 4.0 in terms of the new screen resolution? I am assuming, just like developing for the iPad that there should be no hard coded screen resolutions in your code. I'd also like advice on the best way of writing robust code to work well on any device. For instance, detecting the screen resolution is not enough - on the iPad the screen is physically bigger so you can display more items on it. On the new iPhone the screen is the same physical size but higher resolution, so the likely thing is that you wont want to display more items, just higher resolution versions of them. Any help would be useful, Regards Dave EDIT: I have read the other similar posts, I guess what I really would like to know is what is the recommended way to write code for all App Store devices in a robust way so they a) all work b) make best use of the device.

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• MYSQL: How do I set a date (makedate?) with month, day, and year

  - by chongman

  Hi? I have three columns, y, m, and d (year, month, and day) and want to store this as a date. What function would I use on mySQL to do this? Apparently makedate uses year and day of year (see below), but I have month. I know I can use STR_TO_DATE(str,format), by constructing the string from (y,m,d), but I would guess there is an easier way to do it. REFERENCES MAKEDATE(year,dayofyear) Returns a date, given year and day-of-year values. dayofyear must be greater than 0 or the result is NULL.

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• signed angle between two 3d vectors with same origin within the same plane? recipe?

  - by Advanced Customer

  Was looking through the web for an answer but it seems like there is no clear recipe for it. What I need is a signed angle of rotation between two vectors Va and Vb lying within the same 3D plane and having the same origin knowing that: the plane contatining both vectors is an arbitrary and is not parallel to XY or any other of cardinal planes Vn - is a plane normal both vectors along with the normal have the same origin O = { 0, 0, 0 } Va - is a reference for measuring the left handed rotation at Vn The angle should be measured in such a way so if the plane would be XY plane the Va would stand for X axis unit vector of it. I guess I should perform a kind of coordinate space transformation by using the Va as the X-axis and the cross product of Vb and Vn as the Y-axis and then just using some 2d method like with atan2() or something. Any ideas? Formulas?

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• Understanding The Convolution Matrix

  - by Ryan Naddy

  I am learning about the Convolution Matrix, and I understand how they work, but I don't understand how to know before hand what the output of a Matrix will look like. For example lets say I want to add a blur to an image, I could guess 10,000+ different combinations of numbers before I get the correct one. I do know though that this formula will give me a blur effect, but I have no idea why. float[] sharpen = new float[] { 1/9f, 1/9f, 1/9f, 1/9f, 1/9f, 1/9f, 1/9f, 1/9f, 1/9f }; Can anyone either explain to me how this works or point me to some article, that explains this? I would like to know before hand what a possible output of the matrix will be without guessing. Basically I would like to know why do we put that number in the filed, and why not some other number?

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• Timeout with GAE Java

  - by user242153

  Hi, I am having some issues with an app I have deployed on GAE. Specifically, I am intermittently running into the DeadlineExceededException where the server is not responding within the 30 seconds required. What is odd is that the code is not overly complex, it should run in milliseconds. My guess is that the delay is in dealing with the persistence manager and accessing the datastore. 2 questions: 1) What is the best way to track where all of the CPU time on the server is being used up? Log files do not seem helpful and to make things more complicated the code runs very fast when I am running it locally 2) Any tips / best practices in dealing with the 30 second exception? What are the biggest drivers of this? Datastore? HTTP requests / responses? Thanks

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• What is the simplest, but solid, interface from WinForms to a SQL Server database?

  - by Greg

  Hi, If I wanted to have my data in SQL Server, but wanted to use a thick client WinForms application for users, what would be the best practice way to have calls occurring from WinForms to database? And how simple is this? I guess I'm trying to gauge to what extent there are issues with this approach and one needs to go for some (a) middle tier with web services, or (b) have to go asp.net or something. I really just have a simple app that needs a database and I'll only have a 10 - 30 clients on a LAN/WAN network that would be connecting in.

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• How do I get user input into a PackageMaker package?

  - by Brian Postow

  I'm trying to create an install package. I've got all my components, and I think I understand most of the process. I want to have an install/set-up script that is run as part of the install. I planned to put it either as a post-install action or a post-install script. The problem is that I need user-input. I can't figure out how to either get user input into the script, or how to add a page in the install UI that has a place for user input and then pass that on to the script. I guess, I could write an apple-script with a dialog to ask the question, and then pass that information on to my shell script (or, write the whole thing in the applescript) but that seems unnecessarily complicated... Is there a normal way to do this? Thanks

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