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  • How does a GUI Framework work?

    - by AlexW.H.B.
    I have been all over the web looking for an answer to this, and my question is this: How does a GUI framework work? for instance how does Qt work, is there any books or wibsites on the topic of writing a GUI framework from scratch? and also does the framework have to call methods from the operating systems GUI framework? -- Thank you to any one who takes the time to try to answer this question, and forgive me if i misspelled anything.

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  • Drupal: Whow to forward argument to block-exposed-filters results?

    - by Vlad Socaciu
    I have a typical views page displaying nodes, with a taxonomy tid receiveid as an argument through the url: cat/% Now I want to further narow the results with an exposed filter by a cck field. All goes well and for tid=10 (for instance), the filtered page url is cat/10?field_no_people_value=5 Now, when I expose the filter in a block, the argument, tid, goes away and I get cat/all?field_no_people_value=5 . Obviously, filtering by tid doesn't happen anymore. How should I get around this?

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  • Oracle DB on solaris utilizing swap memory when free RAM available

    - by Ara
    Hi, We have a weird instance where we noticed our oracle database server swap utilization was 100% and surprised to see that the system had free memory available during that period. To my knowledge, swap memory utilization starts once system runs out of free RAM (please correct me if i'm wrong). Not sure what could have caused this unusual activity. Had anyone else experienced such behaviour? Regs,

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  • What happens on Activity.finish() with AsyncTask still running in background?

    - by stormin986
    What happens on Activity.finish() with an AsyncTask still running in background? Does it just pop the Activity off the Activity Stack, but wait to destroy the Activity object until the AsyncTask fully completes (since the AsyncTask is an inner class of my Activity)? Also, would it act any differently if the AsyncTask were a public, non-inner class that held no references to the instance of the Activity?

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  • Why are my rails tests so slow?

    - by ryeguy
    Is it normal for my test suite to take 5 seconds just to launch? Even when running an empty suite it still takes this long. Is it because it's firing up a new instance of rails on each run? If so, is there anyway to keep it persistent? I'm using Test::Unit with Shoulda.

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  • How can I integrate Java with .Net?

    - by Luke
    I have one SDK that is available in Java and another SDK that is available for .Net and would like to write a single application that interfaces with both of them. I imagine I will need to use a cross platform communication framework that can support named pipes (or other in memory communication), what is the best choice? After some more research I found Hessian -- does anyone know anything about the maturity of this project?

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  • rails multiple outer joins syntax

    - by Craig McGuff
    I have the following models user has_many :leave_balances leave_balance belongs_to :user belongs_to :leave_type leave_type has_many :leave_balances I want to output a table format showing user names and their balance by leave type. Not every user can have every balance i.e. outer joins required. I'd like to see something like this: Employee Annual Leave Sick Leave Bob 10 Fred 9 Sara 12 15 I am unsure how to get this out as a single statement? I am thinking something like User.joins(:leave_balances).joins(:leave_type)

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  • Creating directory?

    - by Vineet
    When iam creating directory using sytem as user create directory emp_dir1 AS "'C:\Documents and Settings\Administrator\Desktop\vin.txt"; vin.txt is my file it creates it. same when i do using user Scott it gives an error for path of file that "Identifier is too long" but when i put this file path in single quotes instead of double quotes for scott, it creates it. What is the reason behind?

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  • Marquee horizontal text scroll with a fading effect?

    - by Peter
    I am looking for a solution for a single line Marquee horizontal text scroll with a fading effect using javascript (jquery if possible). Like a carousel text scroll. All the google searches gave me scrolling effects but with no fading effect. I know that this can be done in flash but im avoiding it if there are other solutions. Any help would be greatly appreciated.

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  • Does WCF use the ThreadPool to bring up new instances for a PerCall service?

    - by theburningmonk
    Hi, for a PerCall WCF service whose throttling has been set to be high (say, 200 max concurrent calls) would WCF bring up a new instance and invoke the request on a threadpool thread? If it does, then does this have an impact on the total number of concurrent calls allowed? I ask because I don't seem to ever hit the max number of concurrent calls I've set in the service throttling config but instead a fraction of that number - up to 50 on a 100 MaxConcurrentCalls setting and 160 on a 200 MaxConcurrentCalls setting. Thanks,

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  • Crate datasource for mysql to different machine in glassfish

    - by Dickson
    I'm using glassfish(v2.11) as my application server and I have another machine for mysql database server. Currently I want to separate the app server and db server, so I create a jdbc datasource to point to mysql server, but it doesn't works as expect, by the way, when I create datasource to point to local machine (glassfish app server and mysql db server in single machine), and It works well. Is there any configuration I need to care of when pointing datasource to different machine which I use to host my database (MySQL 5.1)?

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  • Two Phase Commit with MongoDB

    - by mattcodes
    Heres what Im thinking. Do you see any issues with this workaround to emulate 2 phase commit when using something like MongoDB where each operation is atomic and there is no support for transactions outside of that? transaction_scope: read message from servicebus - UpdateCustomerAddress get customer aggregate from docdb, replay events where commited =1 call customer.updateAddress validates creates customer address updated event apply event event store as uncommitted events do optimistic concurrency update against docdb pushing uncommitted events (single op to ensure consistency) publish event to service bus update docdb set events just published to commited = 1 (again one 1 op - at least in mongodb) transaction_complete

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  • C# - Sharing static data between multiple processes

    - by Murtaza Mandvi
    I have a WCF service (instantiated within a Console application on NetTCP), this service has static data (large volume) which gets instantiated on the load. I have multiple instances of this Console application running at once, and all of them are doing the same static data initialization , is there a way that I can have a single data source and share the data among processes so that each process does not have to consume large amount of memory?

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  • Find Control In Datalist

    - by KareemSaad
    When I tried To Find Control n data List As I Mentioned Below Error(Object reference not set to an instance of an object. I cannot know protected void dlCategory_ItemDataBound(object sender, DataListItemEventArgs e) { Label Lb = (Label)e.Item.FindControl("LblCat"); Lb.ForeColor = System.Drawing.Color.Red; } ' onitemcreated="dlSubCategory_ItemCreated" onitemdatabound="dlSubCategory_ItemDataBound" ' class="buttn_txt" '

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  • Is it possible to make a subclass of NSObject which support subnodes in IB for iPhone project?

    - by Eonil
    I'm making a custom UI element class for iPhone. It'll cool to edit my class on Interface Builder with hierarchy. Some of my class is management class like UINavigationController, but they're not one of them, subclasses from NSObject. Of course, I can place a NSObject instance on IB, but it cannot have a child node. Is there a way to enable adding child node to subclass of NSObject?

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  • How can I debug a PHP CLI script with xdebug?

    - by Laran Evans
    I haven't quite figured this out. EVERY piece of documentation I've found covers how to use xdebug to debug scripts running in Apache. I need to debug a php CLI script. So, for instance, how do I pass the XDEBUG_SESSION_START variable in to get xdebug to kick on? I'm specifically trying to debug a CakePHP shell. So if anyone has any additional insight into that I'd be very appreciative. Thanks.

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  • Creating static resource dictionary

    - by Vishal
    Hi All, I've created a Resource Dictionary that I want to merge with multiple usercontrol xaml files. I want only one instance of this Resource Dictionary to be created. Any idea how to do this? Note: Merge should happen through xaml only and not through code. Thanks & Regards, Vishal

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  • MySQL VARCHAR strange column behavior

    - by Mat
    I have the following SQL statement which returns a single record as expected: select * from geodatasource_cities C, geodatasource_countries D where C.CC_FIPS = D.CC_FIPS and D.CC_ISO='AU' and UCASE(TRIM(C.FULL_NAME_ND)) LIKE '%JAN JUE%'; However, If I use the following SQL statement, no records are returned. I have only changed the LIKE clause to an equal to clause: select * from geodatasource_cities C, geodatasource_countries D where C.CC_FIPS = D.CC_FIPS and D.CC_ISO='AU' and UCASE(TRIM(C.FULL_NAME_ND)) = 'JAN JUE'; Can anybody please help me understand why this may be happening?

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  • Restricting Access in ERB code.

    - by LGFaler
    I am trying to build a CMS using ERB. Is there a way you can give ERB code read-only access to your models? For instance, I want to be able to load any information on my models (Model.all, Model.find_by_slug, Model.find_by_name, Model.other_model.name, etc...), but I don't want to be able to change this data. Can you disable ERB from executing commands that would make database changes (Model.save, Model.update, Model.delete, Model.destroy, etc.)???

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  • Singleton & Multi-threading

    - by ronan
    Friends I have the following class that class Singleton { private: static Singleton *p_inst; Singleton(); public: static Singleton * instance() { if (!p_inst) { p_inst = new Singleton(); } return p_inst; } }; Please do elaborate on precautions taken while implementing Singleton in multi-threaded environment .. Many thanks

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