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  • calling UIview methdods

    - by mindfreak
    I want to call this method in a user defined function (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation Is it possible ?? if yes,How ?? Pl. guide me.

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  • Creating UI problem

    - by Xaver
    I create program which have the installer-like interface. How better realize that with ShowDialog method of Form-class or doing MDI interface? when i using ShowDialog method i doing this ways and i have next problems: 1) First form have ShowInTaskbar property=true other form false, formm appeared by .ShowDialog() method in event of press button "Next", event of pressing "" (also this function do .visible=false to undisplay form), event of pressing "

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  • iphone touch offset in uiwebview

    - by How2iphone
    I am currently experimenting with canvas drawing function in a uiwebview.Its a simple app that allows you to finger paint on the Iphone.Can someone point me in the rite direction on a problem I'm having.I need to be able to offset the touch so you can see what your painting instead of your finger being in the way.Its built on Html,javascript and css.Any ideas would be greatly appreciated.

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  • jQuery - draggable images on iPad / iPhone - how to integrate event.preventDefault();?

    - by Tim
    Hello! I use jQuery, jQuery UI and jQuery mobile to build a web application for iPhone / iPad. Now I create images and they should be draggable, so I did this: <!DOCTYPE html> <html> <head> <meta http-equiv="Content-type" content="text/html; charset=utf-8"> <title>Drag - Test</title> <link rel="stylesheet" href="http://code.jquery.com/mobile/1.0a2/jquery.mobile-1.0a2.min.css" /> <script src="http://code.jquery.com/jquery-1.4.4.min.js"></script> <script src="http://code.jquery.com/mobile/1.0a2/jquery.mobile-1.0a2.min.js"></script> <script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.7/jquery-ui.min.js"></script> </head> <body> <div> <div style="width:500px;height:500px;border:1px solid red;"> <img src="http://upload.wikimedia.org/wikipedia/en/thumb/9/9e/JQuery_logo.svg/200px-JQuery_logo.svg.png" class="draggable" alt="jQuery logo" /> <img src="http://upload.wikimedia.org/wikipedia/en/a/ab/Apple-logo.png" class="draggable" alt="Apple Inc. logo" /> </div> </div> </body> <script type="text/javascript"> $(document).ready(function() { $(".draggable").draggable(); }); </script> </html> Here you can see the live example: http://jsbin.com/igena4/ The problem is, that the whole page want to scroll. I searched in Apple's HTML5 examples and found this to prevent the scrolling of the page, so that the image is draggable: ... onDragStart: function(event) { // stop page from panning on iPhone/iPad - we're moving a note, not the page event.preventDefault(); ... } But the problem is for me, how can I include this into my jQuery? Where do I get event? Best Regards.

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  • AudioQueue on iPhone

    - by Sridhar
    Hi, Is there anyway to record the sound in slow manner using AudioQueues in Iphone(may be in call back function ?). Currently I am recording in Linear PCM with 22050 Hz. Basically I want to adjust the audio samples to match my video frame rate (which is 10 FPS). Thanks

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  • Can parser combination be made efficient?

    - by Jon Harrop
    Around 6 years ago, I benchmarked my own parser combinators in OCaml and found that they were ~5× slower than the parser generators on offer at the time. I recently revisited this subject and benchmarked Haskell's Parsec vs a simple hand-rolled precedence climbing parser written in F# and was surprised to find the F# to be 25× faster than the Haskell. Here's the Haskell code I used to read a large mathematical expression from file, parse and evaluate it: import Control.Applicative import Text.Parsec hiding ((<|>)) expr = chainl1 term ((+) <$ char '+' <|> (-) <$ char '-') term = chainl1 fact ((*) <$ char '*' <|> div <$ char '/') fact = read <$> many1 digit <|> char '(' *> expr <* char ')' eval :: String -> Int eval = either (error . show) id . parse expr "" . filter (/= ' ') main :: IO () main = do file <- readFile "expr" putStr $ show $ eval file putStr "\n" and here's my self-contained precedence climbing parser in F#: let rec (|Expr|) (P(f, xs)) = Expr(loop (' ', f, xs)) and shift oop f op (P(g, xs)) = let h, xs = loop (op, g, xs) loop (oop, f h, xs) and loop = function | ' ' as oop, f, ('+' | '-' as op)::P(g, xs) | (' ' | '+' | '-' as oop), f, ('*' | '/' as op)::P(g, xs) | oop, f, ('^' as op)::P(g, xs) -> let h, xs = loop (op, g, xs) let op = match op with | '+' -> (+) | '-' -> (-) | '*' -> (*) | '/' -> (/) | '^' -> pown loop (oop, op f h, xs) | _, f, xs -> f, xs and (|P|) = function | '-'::P(f, xs) -> let f, xs = loop ('~', f, xs) P(-f, xs) | '('::Expr(f, ')'::xs) -> P(f, xs) | c::xs when '0' <= c && c <= '9' -> P(int(string c), xs) My impression is that even state-of-the-art parser combinators waste a lot of time back tracking. Is that correct? If so, is it possible to write parser combinators that generate state machines to obtain competitive performance or is it necessary to use code generation?

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  • Splitting input into substrings in PIG (Hadoop)

    - by Niels Basjes
    Assume I have the following input in Pig: some And I would like to convert that into: s so som some I've not (yet) found a way to iterate over a chararray in pig latin. I have found the TOKENIZE function but that splits on word boundries. So can "pig latin" do this or is this something that requires a Java class to do that?

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  • Dynamic inheritance/implementation in PHP 5.*

    - by Rolf
    Hi everyone, I'm implementing a Logger, based on a XML declaration (path to class, method name, custom log message). There is also a Logger interface that defines the function __call, the latter logs what's needed and then relays the call to the target method. The only difficulty is to make each class, declared in the XML file, implement this interface with __call. So finally my question: is there a way to set at runtime the parent class or the implemented interface of another class ? Thanks in advance ! Rolf

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  • c++ class member functions selected by traits

    - by Jive Dadson
    I am reluctant to say I can't figure this out, but I can't figure this out. I've googled and searched stackoverflow, and come up empty. The abstract, and possibly overly vague form of the question is, how can I use the traits-pattern to instantiate non-virtual member functions? The question came up while modernizing a set of multivariate function optimizers that I wrote more than 10 years ago. The optimizers all operate by selecting a straight-line path through the parameter space away from the current best point (the "update"), then finding a better point on that line (the "line search"), then testing for the "done" condition, and if not done, iterating. There are different methods for doing the update, the line-search, and conceivably for the done test, and other things. Mix and match. Different update formulae require different state-variable data. For example, the LMQN update requires a vector, and the BFGS update requires a matrix. If evaluating gradients is cheap, the line-search should do so. If not, it should use function evaluations only. Some methods require more accurate line-searches than others. Those are just some examples. The original version instatiates several of the combinations by means of virtual functions. Some traits are selected by setting mode bits. Yuck. It would be trivial to define the traits with #define's and the member functions with #ifdef's and macros. But that's so twenty years ago. It bugs me that I cannot figure out a whiz-bang modern way. If there were only one trait that varied, I could use the curiously recurring template pattern. But I see no way to extend that to arbitrary combinations of traits. I tried doing it using boost::enable_if, etc.. The specialized state info was easy. I managed to get the functions done, but only by resorting to non-friend external functions that have the this-pointer as a parameter. I never even figured out how to make the functions friends, much less member functions. Perhaps tag-dispatch is the key. I haven't gotten very deeply into that. Surely it's possible, right? If so, what is best practice?

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  • PHP Form Security With Referer

    - by Jascha
    I'm putting together a site that will make itself available for user input. I was wondering if writing a function like: if(getenv("HTTP_REFERER") != 'http://www.myURL.com/submitArea'){ die('don\'t be an jerk, ruin your own site'); }else{ // continue with form processing } is enough to prevent cross site form submissions.

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  • sin v/s sinf fucntion in C

    - by user319873
    Hi Guys, I am trying to use sinf function in my C Program and it does give me undefined reference under MSVC 6.0 but sin works fine. This make me curious to find the difference between sin and sinf. What is the logical difference between sin and sinf(). How can I implement my own sinf functionality?

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  • JNI dll in Ganymede

    - by Joseph Lim
    How do I import a dll into my dll project in Eclipse Ganymede? I am creating a dll for JNI. I included the .h of the dll but I keep getting errors about the function not referenced... Please help. Thanks.

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  • jQuery scrollTo minified

    - by strangerpixel
    I downloaded the latest jquery.scrollTo from the plugins site. Is there an obvious reason why the minified version does not work? With the exact same code the console throws the error: $.scrollTo is not a function

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  • Cross Join 'n' times a table

    - by SDReyes
    It is possible to write a generic function/procedure/select/somethingElse to cross-join a table against himself 'n' times? (yes, 'n' is a given parameter : ) How would you do it? Example Having this table: Value ------- 1 2 3 cross join it 2 times, would return: Value | Value ------------------ 1 1 1 2 1 3 2 1 2 2 2 3 3 1 3 2 3 3

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  • jQuery window resize

    - by Happy
    I have piece of javascript code, which should process when the browser window is resized. resize.style.marginRight=(resize.offsetWidth-$(this)[0].offsetWidth)+'px' Tryed this stuff (doesn't work): window.onresize = function(event) { resize.style.marginRight=(resize.offsetWidth-$(this)[0].offsetWidth)+'px' } Full code available - http://jsbin.com/adelu3/2/ (see page source) Thanks.

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  • Nested generator functions in python

    - by Yuval A
    Consider a tuple v = (a,b,c) and a generator function generate(x) which receives an item from the tuple and generates several options for each item. What is the pythonic way of generating a set of all the possible combinations of the result of generate(x) on each item in the tuple? I could do this: v = (a,b,c) for d in generate(v[0]): for e in generate(v[1]): for f in generate(v[2]): print d,e,f but that's just ugly, plus I need a generic solution.

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  • retrieving row based on input

    - by christine33990
    public void RemoveTask(int index) { SQL = "DELETE FROM Task where (...) = " +index; dbConn.Open(); dbCommand = new SqlCeCommand(SQL, dbConn); dbCommand.ExecuteNonQuery(); dbConn.Close(); } What i want to do is to delete the record based on the index which specified the row number but I don't know what function or variable should be used ( note the blank ), i try something like rowNum but it does not work. any help will be appreaciated

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  • How do I modify a HTTP response packet with winpcap?

    - by httpinterpret
    There are two problems here: What if content is encoded:gzip... Do I also need to change the header part to make the HTTP packet valid(checksums if any?) UPDATE Can someone with actual experience elaborate the steps involved? I'm using winpcap and bpf tcp and src port 80 to filter the traffic,so my job lies in this callback function: void packet_handler(u_char *param, const struct pcap_pkthdr *header, const u_char *pkt_data)

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  • Javascript: getting element in dom tree when mouseover

    - by oimoim
    Hi, When using : document.onmouseover = function(e) {} Is there a property which gives me the element in the dom tree ? For example, I can set a style to e.srcElement But, how can I later access this element to (for example) reset its style ? And how can I know at which place in the dom tree it is ? I want to be able to situate it in the whole page dump. Many thanks.

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  • Exclamation mark used with assert method in its parameters.

    - by Maxsy
    Okay this has been lingering in my head for quite a while now. In ruby on rails unit testing there is an exclamation mark with the assert method. Here is an example test "No empty values to be inserted" do product = Produce.new assert !product.save end Let me know the function of the exclamation mark. Quick replies appreciated. Thanks.

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  • Minimizing all open windows in C#

    - by Charlie Somerville
    I saw this C++ code on a forum which minimizes all open windows #define MIN_ALL 419 #define MIN_ALL_UNDO 416 int main(int argc, char* argv[]) { HWND lHwnd = FindWindow("Shell_TrayWnd",NULL); SendMessage(lHwnd,WM_COMMAND,MIN_ALL,0); Sleep(2000); SendMessage(lHwnd,WM_COMMAND,MIN_ALL_UNDO,0); return 0; } How can I access the FindWindow and SendMessage API function and the HWND type in C#.net?

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