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  • Static string variable in Objective C on iphone

    - by Prajakta
    Hi, How to create & access static string in iPhone (objective c)? I declare static NSString *str = @"OldValue" in class A. If i assign some value to this in class B as str = @"NewValue". This value persists for all methods in class B. But if I access it in class C (after assignment in B) I am getting it as OldValue. Am I missing something? Should i use extern in other classes? Thanks & Regards, Yogini

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  • How do I download photos tagged of me from Facebook?

    - by Keith
    I want to be able to download (and back up) photos tagged of me in Facebook. I'm specifically not interested in my own photo albums - I uploaded them and therefore have them already in better quality than FB. What I want are the photos other have uploaded that have me in them. I have a couple of hundred of these now, and don't much fancy three hours of right-click save-as... There seem to be a couple of utilities that pop up with a quick search, but (call me paranoid) I'm wary about giving some random freeware app my login and password. Social safe looked promising, but as it doesn't support this feature at the moment it's kinda pointless. Can anyone recommend one that they've actually used? I'd consider an open source one - I'm a programmer and don't mind digging through to check that it doesn't do anything nasty.

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  • Authenticated Referrals & Server-Side Auth Flow - What is the redirect_uri?

    - by Brian P. Hamachek
    From an authenticated referral (such as from a timeline story) to my website, I am trying to use the server-side authentication flow to obtain an access token for the referred user. I need to pass my app secret, the auth code, and the original redirect URI to the Facebook access token endpoint. Since I did not initiate the authentication request, how do I determine the original redirect_uri? The link from the Facebook timeline looks like: http://www.facebook.com/connect/uiserver.php?app_id=153644678059870&method=permissions.request&redirect_uri=http%3A%2F%2Fwww.wnmlive.com%2Fpost%2F141833948%3Ffb_action_ids%3D10100708033267487%26fb_action_types%3Dwnm-live%253Acomment%26fb_source%3Drecent_activity&response_type=code&display=page&auth_referral=1 So I figure that the redirect URI I need to pass is: http%3A%2F%2Fwww.wnmlive.com%2Fpost%2F141833948%3Ffb_action_ids%3D10100708033267487%26fb_action_types%3Dwnm-live%253Acomment%26fb_source%3Drecent_activity The URI that the user is ultimately redirected to is: http://www.wnmlive.com/post/141833948?fb_action_ids=10100708032119787&fb_action_types=wnm-live%3Apost&fb_source=recent_activity&code=AQALK-Mwb_Nwi4z7FWnFaL6tEXvNtVJiRKrgarG9X73sp22TJyk8v2GWKtuXuevJk4hPSRNnuNpEgZXLFdOS_k-pY-mE15DYytIa8Y7VdSw3VL-XYi-CR9BCqRQGq4uBJvSSdZayCp6MWzDMaNqWd5r8OhKVnOhg_yDlvfoLl21N2SMwkJaOfD5mlPnPb5A-Q4A#_=_ Is it safe to assume that I can just chop off everything starting with the "&code=" and use that as the redirect URI?

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  • Sony Vaio dead keyboard

    - by Filip Górny
    I have strange problem with my almost new laptop. Aftear I leave it turned on for some hours and back to use it, it was printing something like ^[[2~ on the screen and I cannot stop it. After rebooting it did not show any activity. After few hours I managed to turn it on by hiting random keys at keyboard. I starts that way but I have to use external keyboard to type anything. When I randomly stroke the keys when is turned on, it sometimes print that unrecognised characters. It works the same way at linux and windows (ubuntu, windows 7). What can be the reason it started to work so strange and is there anyway to fix it without sending it to warranty and waiting few weeks? :/ I dont remember to make it wet, but they may be something like cigaretes ashes in it, I could not remember...

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  • Needs some help with an apache mod-rewrite issue

    - by mike
    I've modified my .htaccess file to have the following statement RewriteCond $1 !^index.php$ RewriteRule ^/?([^/]+)$ index.php?c=home&m=details&seo=$1 [L,NS] This allows me to use product URL's like this: http://domain.com/product_name However, when trying to access a file at the same level as index.php, it always calls the RewriteRule above and errors out. I need to be able to access files like below, but each URL currently attempts to load index.php. http://domain.com/about.htm http://domain.com/terms.htm http://domain.com/robots.txt etc Any suggestions on how I can modify my htaccess file to get this to work correctly?

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  • Amazon S3 security credentials per bucket

    - by slythic
    Hi all, I was wondering if it was possible to generate security credentials per individual Amazon S3 bucket. I am working with a developer and would like to grant him access only to the bucket we are working with. It's not a trust issue, it's more a concern that he'll delete the wrong bucket or its contents. For example: If we were working on an application that used a bucket called test-application I could generate the credentials for just that one bucket. These credentials would not allow access to other buckets in my account. Is this possible? Thanks, Tony

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  • Laptop connected to external monitor results in desktop overflow

    - by Andrew Fox
    I have a laptop (MSi FX600) connected to an external monitor (Toshiba 19AV500U) with the screen resolution set to the monitors recommended setting of 1440x900. The problem is the desktop is overflowing the display, meaning all edges of the desktop are cut off, so I cannot see the close, minimize buttons on the top and I only see half of the taskbar at the bottom. I have tried many different resolutions but none of them solve the problem. I have had this same problem when connecting to other external monitors in the past, but not all of them, it seems to be fairly random. I have tried to find a way to manually adjust the resolution but I cannot see a way to do this in my settings. All windows updates are up to date, I am connecting through an HDMI cable and I have it set to display only on the external monitor and not extended desktop.

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  • How do I connect to the serial console port os a Sunfire 280R?

    - by DrStalker
    We have a Sunfire 280R (old SPARC/Solaris server) that is refusing to come up after being relocated. We're trying to connect to the serial console port, but all we get is random gibberish on the screen. We've tried both connecting with a DB25DB9 adapter and using a DB-25-RJ45 adapter with a cisco RJ45-DB9 adapter to a windows laptop. We're configuring the laptop to 9600 baud, 8 bit, 1 stop bit, no parity. We've tried both no flow control and Xon/Xoff. We get the same results hooking up to the serial port on a working SPARC server, so it's probably something in our setup rather than a fault with the server. How do we get access to to serial console so we can work out what is stopping this box from getting to the network? Is there a special sun adapter we need to get/make to get the serial link working?

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  • Ubuntu server 9.10 freezes up after ~10 minutes

    - by Matt Williamson
    I just upgraded my Ubuntu server from 9.04 to 9.10 and after about 10 minutes it locks up. It won't respond to ping, can't ssh in and the terminal doesn't accept keyboard input. It does not have X installed. I then reformatted and installed it from scratch with the same results. There are two hard drives, the first is for the OS and the second is for media. The second has not changed, it is an ext3 formatted drive with one partition. I stopped random services (samba, ushare, transmission-daemon) to see if they were causing the issue, but it still locked up. I did a watch "dmesg|tail" until it locked up, but I didn't see anything. How can I troubleshoot this further? I don't want to downgrade. Machine specs: Dell Dimension 3000 Pentium 4 @3GHz 512M RAM

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  • Assigning to struct in different class

    - by 4thSpace
    I have a struct in ClassA and want to assign it to the same struct in ClassB (the two structs are the same with different names). ClassA and ClassB are view controllers. Basically, I need to pass this struct to another class. However, structs don't seem to be exposed as members, which means I can't access them. Here is ClassA's struct declared in its header file: typedef struct { NSString *startDate; NSString *endDate; NSString *classId; } selectedItemsClassAStruct; selectedItemsClassAStruct selectedItemsClassA; and the same for ClassB (just with ClassA text replaced) It doesn't appear in code hints for ClassB. I see this error if I try to access it: request for member 'selectedItemsClassBStruct' in something not a structure or union How should it be done?

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  • Windows 7 randomly installs an "Unknown Device"

    - by Amazed
    Rarely (several days to weeks between occurrences,) and seemingly at random, I get a balloon notification from Windows 7 (x64 SP1 Home Premium) that it is installing hardware for me. However, no new hardware has been installed or plugged in! When I click the balloon it doesn't give me any useful information: Looking in the event log, I find this entry: Event ID: 20001 Source: UserPnp Task Category: 7005 Message: Driver Management concluded the process to install driver FileRepository\usb.inf_amd64_neutral_153b489118ee37b8\usb.inf for Device Instance ID USB\VID_0000&PID_0000\6&3AF9A177&0&0060&&02 with the following status: 0x0. It appears to be USB related. My motherboard has both USB 2.0 and 3.0 controllers. My keyboard and mouse are plugged into the 2.0 slots and the data/recharge cable for a tablet (but not the tablet itself) was plugged in to the 3.0 slot. No other USB devices have been attached for several days/reboots. Why is Windows doing this?

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  • const correctness

    - by ra170
    I was going through: C++ FAQs about inheritance and decided to implement it (just to learn it) #include "Shape.h" void Shape::print() const { float a = this->area(); // area() is pure virtual ... } now, everything (well, almost) works as described in item: faq:23.1 except that print() is const and so it can't access the "this" pointer, as soon as you take out const, it works. Now, C++ FAQs have been around for a while and are usually pretty good. Is this a mistake? Do they have typo or am I wrong? If I'm wrong, I would like to know how is it possible to access the "this" pointer in a const function.

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  • Manipulating pixels using only toDataURL

    - by Chris
    The problem I have is this: I need to be able to dynamically tint an image using Javascript, but I cannot access pixel data via the canvas. I can, however, store the dataURL (or any other text-based data format) and include that with the code, manipulate that data, and then create an image object using that dataURL. My question is, how can I access the RGBA value of each pixel, given only the dataURL. I assume I need to decode the base64 url, but into what format in order to manipulate on the pixel level? And then would be it be as trivial as re-encoding it as base64, slapping it in a url, and the passing to an image? Thanks.

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  • Response.Redirect() will not redirect on Internet Explorer

    - by Amit
    Hi, I am using Response.Redirect("someurl",true); in the page_preInit event to redirect all the requests that come to a page. It works fine on Firexox, but if i access the page from internet explorer 7/8, it says page can not be found and will not redirect to new URL. Any idea why this happens?? Update: I tried giving a radom URL in the redirect such as google.com and it works fine. Actually the URL I am trying to redirect is not accessible on my machine, it is on another VPN. I guess IE will not change the URL on the addressbar if it can not access the URL. Firefox on the other hand changes the address on the address bar.

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  • Accessing protected REST endpoint with JQuery

    - by Andy
    I have a site where members login to their account (FormsAuth). I would like to set up a RESTful service that I can access using jQuery. I would like to protect these services using the same FormsAuth. How would a third-party site be able to access these services? They would need to pass in the Principal/Identity to the service, right? I've only seen examples of Basic Authentication (which Twitter uses and jQuery supports). I'm very new to WCT/REST, so not sure how this should be done.

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  • Mighty Mouse is jumping around on screen

    - by Nils Riedemann
    Hi there, I have a really annoying problem with my mighty mouse since a couple of weeks now. When moving my mouse (mightymouse) sometimes it jumps (about once in 30minutes) directly to a (propably) random spot of my screen. I cleaned the mightymouse several times and there is definately no hair or the like, and the desk is not the problem as well - I have the same problem with my other mighty mouse at home. Since I don't have any other mouse i couldn't test whether this relates to the mighty mouse or the mouse in general. Has anyone experienced such issues as well? Is there a solution? Greetings btw: Mac OS X 10.6.4

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  • C++ Unlocking a std::mutex before calling std::unique_lock wait

    - by Sant Kadog
    I have a multithreaded application (using std::thread) with a manager (class Tree) that executes some piece of code on different subtrees (embedded struct SubTree) in parallel. The basic idea is that each instance of SubTree has a deque that store objects. If the deque is empty, the thread waits until a new element is inserted in the deque or the termination criteria is reached. One subtree can generate objects and push them in the deque of another subtree. For convenience, all my std::mutex, std::locks and std::variable_condition are stored in a struct called "locks". The class Tree creates some threads that run the following method (first attempt) : void Tree::launch(SubTree & st, Locks & locks ) { /* some code */ std::lock_guard<std::mutex> deque_lock(locks.deque_mutex_[st.id_]) ; // lock the access to the deque of subtree st if (st.deque_.empty()) // check that the deque is still empty { // some threads are still running, wait for them to terminate std::unique_lock<std::mutex> wait_lock(locks.restart_mutex_[st.id_]) ; locks.restart_condition_[st.id_].wait(wait_lock) ; } /* some code */ } The problem is that "deque_lock" is still locked while the thread is waiting. Hence no object can be added in the deque of the current thread by a concurrent one. So I turned the lock_guard into a unique_lock and managed the lock/unlock manually : void launch(SubTree & st, Locks & locks ) { /* some code */ std::unique_lock<std::mutex> deque_lock(locks.deque_mutex_[st.id_]) ; // lock the access to the deque of subtree st if (st.deque_.empty()) // check that the deque is still empty { deque_lock.unlock() ; // unlock the access to the deque to enable the other threads to add objects // DATA RACE : nothing must happen to the unprotected deque here !!!!!! // some threads are still running, wait for them to terminate std::unique_lock<std::mutex> wait_lock(locks.restart_mutex_[st.id_]) ; locks.restart_condition_[st.id_].wait(wait_lock) ; } /* some code */ } The problem now, is that there is a data race, and I would like to make sure that the "wait" instruction is performed directly after the "deque_lock.unlock()" one. Would anyone know a way to create such a critical instruction sequence with the standard library ? Thanks in advance.

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  • What's the (hidden) cost of lazy val? (Scala)

    - by Jesper
    One handy feature of Scala is lazy val, where the evaluation of a val is delayed until it's necessary (at first access). Ofcourse a lazy val must have some overhead - somewhere Scala must keep track of whether the value has already been evaluated and the evaluation must be synchronized, because multiple threads might try to access the value for the first time at the same time. What exactly is the cost of a lazy val - is there a hidden boolean flag associated with a lazy val to keep track if it has been evaluated or not, what exactly is synchronized and are there any more costs? And a follow-up question: Suppose I do this: class Something { lazy val (x, y) = { ... } } Is this the same as having two separate lazy vals x and y or do I get the overhead only once, for the pair (x, y)?

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  • Can I connect to SQL Server using Windows Authentication from Java EE webapp?

    - by KG
    I am currently investigating how to make a connection to a SQL Server database from my Java EE web application using Windows Authentication instead of SQL Server authentication. I am running this app off of Tomcat 6.0, and am utilizing the Microsoft JDBC driver. My connection properties file looks as follows: dbDriver = com.microsoft.sqlserver.jdbc.SQLServerDriver dbUser = user dbPass = password dbServer = localhost:1433;databaseName=testDb dbUrl = jdbc:sqlserver://localhost:1433 I have zero problems with connecting to a SQL Server database in this fashion when using SQL Server authentication. Is there any way I can retrieve the credentials of the user's Windows Authentication and use that authentication for SQL Server? UPDATE: I know in ASP.net there is a way to set up Windows Authentication for access to the webapp, which is exactly what I am looking for, except I want to pass that token off to SQL Server for access to the database.

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  • FormsAuthentication redirecting to login page when visiting root of website

    - by Ryan Lattimer
    I wanted to use FormsAuthentication to secure my static files as well on my site, so I followed the instructions located here http://learn.iis.net/page.aspx/244/how-to-take-advantage-of-the-iis7-integrated-pipeline/ under title "Enabling Forms Authentication for the Entire Application". Now though, when I try to visit the site by going directly to http://www.mysite.com I get redirected to http://www.mysite.com/Login.aspx?ReturnUrl=%2f instead of it using my DefaultDocument I have set. I can go to my default document by just visiting http://www.mysite.com/Home.aspx without any issues because it is set to allow anonymous access. Is there something I need to add into my web.config file to make iis7 allow anonymous access to the root? I tried adding with anonymous access but no such luck. Any help would be much appreciated. Both Home and the Login form allow anonymous. <location path="Home.aspx"> <system.web> <authorization> <allow users="*" /> </authorization> </system.web> </location> <location path="Login.aspx"> <system.web> <authorization> <allow users="*" /> </authorization> </system.web> </location> Login form is set as the loginUrl <authentication mode="Forms"> <forms protection="All" loginUrl="Login.aspx"> </forms> </authentication> Default document is set as Home.aspx <defaultDocument> <files> <add value="Home.aspx" /> </files> </defaultDocument> I have not removed any of the iis7 default documents. However, Home.aspx is first in the priority.

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  • ASP.NET High CPU Bringing Servers to their Knees

    - by user880954
    Ok, our new build is having 100% cpu spikes on each server at random intervals. For long durations it make the site totally unresponsive - this will be at peak times as people in different countries log on to the site etc. We've looked at perfmom, memory profilers, CLR profiler, sql profilers, Red gate ants profiler, tried load testing in UAT - but cannot even reproduce the problem. This could mean only thousands of users hitting the live site causes it to happen. One pattern we did notice was that the new code - the broken build - actually uses noticably less threads. We are also using spring for IOC - does this have a bed reputation? To make things worse, we cannot deploy to live due to the business impact - so cannot narrow the problem down to subset of the new features we've added. We truly are destroyed - has anyone got any battle scars that may save us a few lives?

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  • How can I load static configuration information

    - by Goro
    In my code, I use JavaScript for UI and PHP for back end. I also use PHP to store application settings and sometimes my UI code needs to access this information. My configuration file looks something like this (config.php): $resolution_x = 1920; $resolution_y = 1080; etc... When I need to access any of these settings form JavaScript, i simply use <?php echo ... ?> to substitute the value directly, but it just doesn't strike me as very robust. Are they any dangers of doing this that I am not aware of? Is there a better way of doing this? Thank you,

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