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• getting window screenshot windows API

  - by Oliver

  Hi, I am trying to make a program to work on top of an existing GUI to annotate it and provide extra calculations and statistical information. I want to do this using image recognition, as I have learned a fair amount about this in University using Matlab and similar things. I can get a handle to the window I want to perform image recognition on, but I don't know how to turn that handle into an image of that window, and all its visible child windows. I suppose I am looking for something like the screenshot function, but restricted to a single window. How would I go about doing this? I suppose I'd need something like a .bmp to mess about with. Also, it would have to be efficient enough that I could call it several times a second without my PC grinding to a halt. Hopefully this isn't an obvious question, I typed some things into google but didn't get anything related.

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• Is it possible to make a button on an AlertDialog that doesn't automatically close the dialog?

  - by Parker

  I have a simple list view with some check boxes in an alert dialog. I need to option to add a select all/none but you can't bring up the menu in an alert dialog, and I want to do this function from a button. From what I've seen any kind of button (positive, neutral, and negative) all close the dialog regardless. So, is this possible? If no, what alternatives do I have? My last mitigation is to simply create a new view and recreate everything. Is a new view the best solution?

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• Using Cepstrum for PDA

  - by CziX

  Hey, I am currently deleveloping a algorithm to decide wheather or not a frame is voiced or unvoiced. I am trying to use the Cepstrum to discriminate between these two situations. I use MATLAB for my implementation. I have some problems, saying something generally about the frame, but my currently implementation looks like (I'm award of the MATLAB has the function rceps, but this haven't worked for either): ceps = abs(ifft(log10(abs(fft(frame.*window')).^2+eps))); Can anybody give me a small demo, that will convert the frame to the power cepstrum, so a single lollipop at the pitch frequency. For instance use this code to generate the frequency. fs = 8000; timelength = 25e-3; freq = 500; k = 0:1/fs:timelength-(1/fs); s = 0.8*sin(2*pi*freq*k); Thanks.

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• Does it take time to deallocate memory?

  - by jm1234567890

  I have a C++ program which, during execution, will allocate about 3-8Gb of memory to store a hash table (I use tr1/unordered_map) and various other data structures. However, at the end of execution, there will be a long pause before returning to shell. For example, at the very end of my main function I have std::cout << "End of execution" << endl; But the execution of my program will go something like $ ./program do stuff... End of execution [long pause of maybe 2 min] $ -- returns to shell Is this expected behavior or am I doing something wrong? I'm guessing that the program is deallocating the memory at the end. But, commercial applications which use large amounts of memory (such as photoshop) do not exhibit this pause when you close the application. Please advise :)

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• varchar comparison in SQL Server

  - by Ram

  I am looking for some SQL varchar comparison function like C# string.compare (we can ignore case for now, should return zero when the character expression are same and a non zero expression when they are different) Basically I have some alphanumeric column in one table which needs to be verified in another table. I cannot do select A.col1 - B.col1 from (query) as "-" operator cannot be applied on character expressions I cannot cast my expression as int (and then do a difference/subtraction) as it fails select cast ('ASXT000R' as int) Conversion failed when converting varchar 'ASXT000R' to int Soundex would not do it as soundex is same for 2 similar strings Difference would not do it as select difference('abc','ABC') = 4 (as per msdn, difference is the difference in the soundex of 2 character expressions and difference =4 implies least different) Is there any other way of doing it ?

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• iPhone Objective-C/Plain C Memory Management

  - by toc777

  Hi everyone, I understand Objective-C memory management but I'm using Core Graphics functionality such as CGRect, CGPoint, CGImageRef etc.. which is written in plain C. My question is how do i manage this memory or is it already handled for me? According to the Apple documentation if an Apple Objective-C function doesn't have copy, new or create in it the returned object is managed for you using autorealease. Is this true for the Core Graphics stuff also? (Well i guess it wont be using autorealease but maybe something similar?) Thanks for taking the time to read this.

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• Revision histories and documenting changes

  - by jasonline

  I work on legacy systems and I used to see revision history of files or functions being modified every release in the source code, for example: // // Rev. No Date Author Description // ------------------------------------------------------- // 1.0 2009/12/01 johnc <Some description> // 1.1 2009/12/24 daveb <Some description> // ------------------------------------------------------- void Logger::initialize() { // a = b; // Old code, just commented and not deleted a = b + c; // New code } I'm just wondering if this way of documenting history is still being practiced by many today? If yes, how do you apply modifications on the source code - do you comment it or delete it completely? If not, what's the best way to document these revisions? If you use version control systems, does it follow that your source files contain pure source codes, except for comments when necessary (no revision history for each function, etc.)?

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• HTML Upload Form will only upload files found in the directory of the PHP file.

  - by vette982

  I have an image uploader that uses the imgur.com API and jQuery's .ajax() function to upload images to their servers. However, if I browse for an image using the <input type="file"/> element of the form, it will only be successful in uploading an image if the image file is found in the same directory as the page.php file that the form is found in (shown below). How can I allow the form to upload images from any directory on my computer? page.php: <form action="page.php" method="post"> <input type="file" name="doc" id="doc" /><br/> <input type="image" src="go.gif" name="submit" id="submit" /> </form>

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• How to subclass a specific jqueryui widget method ?

  - by SBUJOLD

  Since I updated jQueryUI to 1.8 I found a couple of issues in our implementations and I could fix it myself without waiting for a fix on their end if I could find out how to subclass a specific method of the datepicker widget so I call the parent code and then execute my code. I was reading on $.widget but I just can't wrap my head around how that is suppose to work. I tried something like this: $.widget("ui.datepicker", { _showDatepicker: function(input) { alert('Yo'); $.datepicker.prototype._showDatepicker.apply(this,arguments); alert('Hey!'); } }); And all sorts of other variations and beging to think I just don't understand the 'extendability' of jQueryUI or it just can't be done. Anybody knows how I can achieve this ? Thx

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• How to jQuery slidedown once page has already been loaded

  - by bulltorious

  I am having a timing issue when attempting to slide down my more info div. My desired functionality is that the div slidesdown from the top once the page has already been rendered. My problem is if I use $(document).ready().. the animation does not visibly occur. Here is my code: $(document).ready(function() { $(".MoreInfo").slideDown('slow'); }); If I strap it to some other element's click for example, it works beautifully. But I am not sure how to make it visibly slide down once the page has loaded. Thanks!

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• Converting digits, generated by weblog service, to Indic or Roman

  - by Sorush Rabiee

  I need to write something in my html code to convert digits of form 0123456789 to ?????????? (Arabic digits). the number of visitors is generated by blog service. and I want to convert its digits to Arabic. Counter: ????? ????????????? : <BlogSky:Weblog Counter /> ??? the Persian part of above code mean 'Number of visitors' and 'Persons' (from left to right). but digits are represented in latin (0123...). Is it possible to write something like a function in html? i want it to be a global one for using in weblogs. Note: I don't know anything about web programming languages. (and don't want to learn!). I'm not sure about language of above code. (html?)

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• Drupal 5: CCK fields in custom content type

  - by Kuroki Kaze

  I have module that implements custom content type via NodeAPI hooks (hook_insert, hook_update etc). I want to add CCK field to this content type and populate it via hook_nodeapi calls like create or update (to show content nodes in Views). Problem is, I cannot access CCK fields for this content type. Sure, it's enabled on "Manage Fields" page, but when I load any node of this type with Devel module, I cannot see field attribute (field_flag) in node object. I can see it under "Dev Render" tab as part of "content" attribute, like $node-content['field_flag']['#value'], but if I assign value to $node-field_flag or $node-content['field_flag']['#value'] and call node_save, CCK fields are not saved. Maybe I must call some other function to save CCK fields? Or what may be wrong with this setup?

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• iTunes Apple Events API

  - by jldupont

  I'd like to control iTunes through Objective-C ( I just can't get Python appscript installed correctly on my OS/X 10.6.3 system ... that would have been my first choice ). From what I gather, the IPC on Cocoa is based on Apple Events : is there either: Online documentation on iTunes / Apple Events API ? Instrospection mechanism to get to iTunes API? I know about Applescript Editor / Open Dictionary functionality but I can't figure out how to translate the information I see into IPC calls. Note: I have already tried working out a solution through PyObjC but the main function I am after is track searching which I can't figure out. Disclaimer: OS/X super-newbie here.

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• T-SQL - how to get around the order by restriction in CTEs

  - by David

  Hi all I have the following CTE. Its purpose is to provide unique Month/Year pairs. Later code will use the CTE to produce a concatenated string list of the Month/Year pairs. ;WITH tblStoredWillsInPeriod AS ( SELECT DISTINCT Kctc.GetMonthAndYearString(DateWillReceived) Month FROM Kctc.StoredWills WHERE DateWillReceived BETWEEN '2010/01/01' AND '2010/03/31' ORDER BY DateWillReceived ) I have omitted the implmementation of the GetMonthAndYearString function as it is trivial. Sadly, it seems T-SQL is always one step ahead. When I run this code, it tells me I'm not allowed to use ORDER BY in a CTE unless I also use TOP (or FOR XML, whatever that is.) If I use TOP, it tells me I can't use it with DISTINCT. Yup, T-SQL has all the answers. Can anyone think of a solution to this problem which is quicker than simply slashing my wrists? I understand that death from blood loss can be surprisingly lingering, and I have deadlines to meet. Thanks for your help. David

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• Drupal 6 - Including a module form in a view

  - by espais

  I'm making use of the Favorites module, in order to allow my users to favorite nodes they like. Currently, I know that there is a block available for listing out the favorites, along with the 'Add to favorites' button at the top of this list. What I'd like to do is generate the form which includes the button, and include it within each node that I generate. I'd gotten it hacked up and quickly working by copying the generated form and placing it in my views-view--fields-.tpl.php template, however I believe that doing it this way goes against the thought behind Drupal, and probably introduces security issues with the form_id and form_token being hand-written. I've attempted to call the get_form function, and have passed it the form_id that I found in the generated form code, however I can't get Drupal to recognize it. From some Googling I've noticed that generating module forms programmatically may require a hook, but I haven't been able to find any good examples of this. What is the best way to go about creating this form?

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• Best way to deal with session handling in Zend Framework

  - by JACK IN THE CRACK

  So I'm starting up in Zend framework and looking to implement a site-wide "User" session.... something I can easily access from ALL modules/controllers in the application. I'm like, should I make a new namespace in the library and extend the controller, like: MyLib_Controller_Action extends Zend_Controller_Action { protected $_userSession; function preDispatch(Zend_Controller_Request_Abstract $req) { $this->_userSession = new Zend_Session_Namespace('user'); } } ANd then have all my controllers/modules/etc extend from that? Or should I create a Plugin or what? How would you go about making this plugin to pass the user session to the controller? Or do I do it in the bootstrap?? Again how to pass to controller? Also should I use Zend_Session_Namespace or Zend_Http_Cookie and also how do I encrypt and xss clean the cookie or is that did automagically?

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• C: sprintf and recursion

  - by Shinka

  In C, is it possible to use recursion within the sprintf function ? For some reason I get a segmentation fault when I do it: inline char *TreeNode_toString(const TreeNode *node) { char *out; if(TreeNode_isExternal(node)) // If the node has no children... { sprintf(out, "%s:%.2f", node->name, node->distance); } else // The node is strictly binary, so it will have two non-null children { char *l = TreeNode_toString(node->l); // l = left child char *r = TreeNode_toString(node->r); // r = right child sprintf(out, "(%s,%s):%.2f", l, r, node->distance); } return out; }

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• How to refresh parent page using javascript / asp.net in mozilla firefox browser

  - by Rajesh Rolen- DotNet Developer

  window.opener.location.reload(); is working fine with IE but not refreshing parent page in mozilla firefox browser.. please tell me how to refresh parent page in cross browser. i have got this function : Shared Sub CloseMyWindow() Dim tmpStr As String = "" tmpStr += "window.open('','_parent','');window.close();" tmpStr += "window.opener.location.reload();" 'Dim currentPage As Page = TryCast(HttpContext.Current.Handler, Page) 'currentPage.ClientScript.RegisterStartupScript(GetType(me), "refresh", tmpStr, True) HttpContext.Current.Response.Write("<script language='javascript'>" + tmpStr + "</script>") HttpContext.Current.Response.End() End Sub

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• How can I unbind JQZOOM in my JQuery Script?

  - by Andy Barlow

  Hello, I have this script at the moment, which changes an image when a thumbnail has been changed. I then want JQZOOM to be added to that new image. However, if I put it inside the Onclick event, it gets slower and slower the more times you click on it... I guess because its running multiple instances. Is there anyway to unbind the JQZOOM from something then rebind it to something else? Here is my jquery at the moment: var options = { zoomWidth: 400, zoomHeight: 325, xOffset: 25, yOffset: 0, position: "right", lens: true, zoomType: "reverse", imageOpacity: 0.5, showEffect: "fadein", hideEffect: "fadeout", fadeinSpeed: "medium", title: false }; $('.jqzoom').jqzoom(options); $('.single-zoom-image').click ( function () { $('#bigProductImage').attr("src", $(this).attr("zoom")); $('.jqzoom').attr("href", $(this).attr("extrazoom")); }); Thanks in advance if anyone can help me. Cheers!

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• jQuery with json

  - by coure06

  I have the following json code file named: sections.json { "section1": { "priority": 1, "html": '<img src="../images/google.png" />'}, "section2": { "priority": 2, "html": '<input type="button" value="Login" />'}, "section3": { "priority": 3, "html": '<div>Some text</div>'}, "section4": { "priority": 4, "html": '<div>Some text</div>'}, "section5": { "priority": 5, "html": '<select><option>option1</option> <option>option2</option></select>'} } I am trying this in jquery code but alert is not working $.getJSON("sections.json", function(json) { alert('h'); });

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• Can the Perl compiler tell me if I have an unchecked exception in my code?

  - by Konerak

  Is there a way in Perl to declare that a method can throw an error (or die)? EDIT: What interests me the most is a way to get the compiler or IDE to tell me I have an unchecked exception somewhere in my code. I always loved how in Java, a method could handle an Exception and/or throw it. The method signature allows to put "throws MyException", so a good IDE/compiler would know that if you use said method somewhere in your code, you'd have to check for the Exception or declare your function to "throws" the Exception further. I'm unable to find something alike in Perl. A collegue of mine wrote a method which "dies" on incorrect input, but I forget to eval-if($@) it... offcourse the error was only discovered while a user was running the application. (offcourse I doubt if there is any existing IDE that could find these kind of things for Perl, but atleast perl -cw should be able to, no?)

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• Keyboard in HTML text-input disappear when WebView call 'loadUrl' again

  - by Jr.

  Hi there, I use WebView for my Androind App. I got a problem and request a solution for help. There is a textfield in the HTML page. When it gets 'focus' and then I call mWebView.setFocusableInTouchMode(true); in Java code so that the Android soft-keyboard will pop-up to let me key in. The problem is I need using multi-thread for some processes in Java and call mWebView.loadUrl(strJSCall); as callback to execute JavaScript function, but the keyboard gets hidden! The way I try is to force the keyboard to show again. But how can the keyboard always show when 'loadUrl' is called? Dose anyone meet the same issue and solve it already? Sincerely, Jr.

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• Load client-side accordion with pane open

  - by superexsl

  hey , I'm trying to change an AJAX accordion layout on the client-side. How can I make it so that when the page loads, the selected pane is opened? At the moment, I have this: Sys.require(Sys.components.accordion, function() { $("#accordion").accordion({ HeaderCssClass: "acc_header", HeaderSelectedCssClass: "acc_selectedheader", FadeTransitions: true, requireOpenedPane: false }); }); This works. However, if I add SelectedIndex = 1, it still starts off with the top pane opened and everything else closed. I tried change the 1 to other numbers (including -1), but it doesn't make a difference. Have I missed something here? (It's placed in an updatepanel, if that makes a difference) Thanks

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• Stop an anchor from loading on javascript confirm

  - by Joseph Carrington

  I was under the impression that this was formed correctly, but here it is forwarding to the anchor href (clicking through? what should I call this?) whether or not the user selects cancel or okay. <script type="text/javascript"> function myconfirm(my_string) { var agree = confirm('Are you sure you want to remove ' + my_string + '?'); if(agree) { return true; } else { return false; } } </script> and the anchor <a href="example.com/?remove=yes" onclick="myconfirm('my_string')">My String</a>

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• null object reference in ScrollPane/endDrag() when scrollDrag=true

  - by SP

  Hello there. In my flash application, I've got multiple windows which use Scrollpanes. The scrollDrag property is set to true on these because I want that functionality. If I close (within my application) one of these 'windows' and open another, I seem to get a whole lot of this error showing up in my logs: TypeError: Error #1009: Cannot access a property or method of a null object reference. at fl.containers::ScrollPane/endDrag() Sometimes I get thousands of these, which I'm guessing is probably slowing my app down a bit, but otherwise is not causing a problem. Looking through the adobe code for scrollpane, endDrag is really simple: protected function endDrag(event:MouseEvent):void { stage.removeEventListener(MouseEvent.MOUSE_MOVE, doDrag); } The stage var is the only thing that could be null here. The only thing I can think to do is set scrollDrag=false before the window in my application closes so that nothing is listening for the event. Any other suggestions?

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