Search Results

Search found 37654 results on 1507 pages for 'function prototypes'.

Page 1042/1507 | < Previous Page | 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049  | Next Page >

• Updating multiple Sprites - AS3 performance best practices

  - by dani

  Within the container "BubbleContainer" I have multiple "Bubble sprites". Each bubble's graphics object (a circle) is updated on a timer event. Let's say I have 50 Bubble sprites and each circle's radius should be updated with a mathematical formula. How do I organize this logic? How do I update all Bubble sprites within the BubbleContainer? (should I call a bubble.update() function or make a temporary reference to the graphics object?) Where do I put the Math logic? (as static functions?)

  Read the article

• plsql show query

  - by CC

  Hi all, I have a small problem using oracle pl sql. I have a sql file with some cursor, etc, and the treatement fail but with no details. I have an idea about the problem (a function with parameters) but I would like to see the parameter for each call, to be able to debug, to see exactly with wich parameter fail. This is the message: DECLARE * ERROR at line 1: ORA-01422: exact fetch returns more than requested number of rows ORA-06512: at line 165 ORA-06512: at line 260 Is there something to set to be able to see some details ? Thanks. Best regards, C.C.

  Read the article

• OpenGL ES Simple Undo Last Drawing

  - by Erika

  Hi Everyone, I am trying to figure out how to implement a simple "undo" of last drawing action on the iPhone screen. I draw by first preparing the frame buffer: [EAGLContext setCurrentContext:context]; glBindFramebufferOES(GL_FRAMEBUFFER_OES, viewFramebuffer); I then prepare the vertex array and draw this way: glVertexPointer(2, GL_FLOAT, 0, vertexBuffer); glDrawArrays(GL_POINTS, 0, vertexCount); glBindRenderbufferOES(GL_RENDERBUFFER_OES, viewRenderbuffer); [context presentRenderbuffer:GL_RENDERBUFFER_OES]; How do I simple undo this last action? There has to be a way to save previous state or an built-in OpenGL ES function, I would think. Thanks

  Read the article

• Accessing one process's memory contents from another module

  - by Fangkai Yang

  I am developing a virtual device driver such that the user can write to the driver a process' pid and a virtual address, and the module will use these two values to get the memory contents of the target process. I am wondering if there is any easy functions that can fetch user page's data at this virtual address. I have tried get_user but this is not possible because the modules executing get_user at another process's context. I also tried to use ptrace_readdata, however, it seems that the file at /kernel/ptrace.c leaves a function access_process_vm undefined and also I don't know how to compile the source code of my module with this file (the linker seaches file in /linux/include by default). I am wondering if there are any other solutions...

  Read the article

• Oracle analytic functions for "the attribute from the row with the max date"

  - by tpdi

  I'm refactoring a colleague's code, and I have several cases where he's using a cursor to get "the latest row that matches some predicate": His technique is to write the join as a cursor, order it by the date field descending, open the cursor, get the first row, and close the cursor. This requires calling a cursor for each row of the result set that drives this, which is costly for many rows. I'd prefer to be able to join, but what something cheaper than a correlated subquery: select a.id_shared_by_several_rows, a.foo from audit_trail a where a.entry_date = (select max(a.entry_date) from audit_trail b where b.id_shared_by_several_rows = a.id_shared_by_several_rows ); I'm guessing that since this is a common need, there's an Oracle analytic function that does this?

  Read the article

• Python dictionary: add or increment entry

  - by cursa

  Hi everyone, I'm currently re-engaging with Python after a long absence and loving it. However, I find myself coming across a pattern over and over. I keep thinking that there must be a better way to express what I want and that I'm probably doing it the wrong way. The code that I'm writing is in the following form: # foo is a dictionary if foo.has_key(bar): foo[bar] += 1 else: foo[bar] = 1 I'm writing this a lot in my programs. My first reaction is to push it out to a helper function, but so often the python libraries supply things like this already. Is there some simple little syntax trick that I'm missing? Or is this the way that it should be done?

  Read the article

• Making an svg image object clickable with onclick, avoiding absolute positioning

  - by user256410

  I have tried to change the images on my site from to svg, changing img tags to embed and object tags(standard procedure, i think). But, implementing the onclick function, which previously was contained in the img tag is proving most difficult. I found onclick had no effect when placed inside the object or embed tag. So, I made a div exclusively for the svg, and placed onclick in this div tag. But, no effect unless visitor clicks on the edges/padding of the image. I have read about overlaying a div, but am trying to avoid using absolute positioning, or specifying positions at all. Maybe there's a way to do it without specifying postions? Or maybe theres another way to apply onclick to a svg. Has anyone encountered this problem? Questions and suggestions are welcome.

  Read the article

• How to unit test asynchronous APIs?

  - by Ben Clayton

  Hi all. I have installed Google Toolbox for Mac (http://code.google.com/p/google-toolbox-for-mac/) into Xcode and followed the instructions to set up unit testing found here (http://code.google.com/p/google-toolbox-for-mac/wiki/iPhoneUnitTesting). It all works great, and I can test my synchronous methods on all my objects absolutely fine. However, most of the complex APIs I actually want to test return results asynchronously via calling a method on a delegate - for example a call to a file download and update system will return immediately and then run a -fileDownloadDidComplete: method when the file finishes downloading. How would I test this as a unit test? It seems like I'd want to the testDownload function, or at least the test framework to 'wait' for fileDownloadDidComplete: method to run. Any ideas much appreciated!

  Read the article

• Works in firefox but not IE8

  - by creocare

  This is working fine in firefox but only closes the first page and then breaks in IE8. Firebug in IE8 says that x.item(o) is null. I can't figure out why this works in firefox but not IE. Thanks for any help. pager(x=document.getElementsByName("pg1")); function pager( x ) { var curr = document.getElementById('showing'); $(curr).fadeOut('fast'); curr.id = 'hide'; $(x).fadeIn('slow'); x.item(0).id ='showing'; }

  Read the article

• JPG File Size Optimization - PHP, ImageMagick, & Google's Page Speed

  - by Sonny

  I have photo gallery code that does image re-sizing and thumbnail creation. I use ImageMagick to do this. I ran a gallery page through Google's Page Speed tool and it revealed that the re-sized images and thumbnails both have about an extra 10KB of data (JPEG files specifically). What can I add to my scripts to optimize the file size? ADDITIONAL INFORMATION I am using the imagick::FILTER_LANCZOS filter with a blur setting of 0.9 when calling the resizeImage() function. JPEGs have a quality setting of 80.

  Read the article

• MKMapView Route/Directions

  - by Mark

  I found that the Google Maps API supports Directions through: var map; var directionsPanel; var directions; function initialize() { map = new GMap2(document.getElementById("map_canvas")); directionsPanel = document.getElementById("my_textual_div"); map.setCenter(new GLatLng(49.496675,-102.65625), 3); directions = new GDirections(map, directionsPanel); directions.load("from: 500 Memorial Drive, Cambridge, MA to: 4 Yawkey Way, Boston, MA 02215 (Fenway Park)"); } So how can this be translated into Objective-C so it can be retrieved by the iPhone? I know how to draw a line on MKMapView I just need the geolocations for the route. Or perhaps there is a different way to get the route between two geolocation points. Please let me know, Thanks in advance.

  Read the article

• .NET COM Interop with references to other libraries

  - by user262190

  Hello,I'm up against a problem when loading a class in a managed library from a COM Interop library. basically I have some Unmanaged C++ code and a COM Interop library written in C#. And finally a 3rd library which is referenced by the COM Interop library which contains a class: public class MyClass{ public MyClass(){} } What I'd like to do is from my unmanaged c++ code, call a function in the Interop library The C++ code doesn't need to know of the existence of the third library, it's only used within the Interop. Init(){ MyClass _class = new MyClass(); } for some reason this line in Init fails "MyClass _class = new MyClass();", and I don't get very usefull error messages, all I have to go on is a few of these in my output window: "First-chance exception at 0x7c812afb in DotNet_Com_Call.exe: Microsoft C++ exception: [rethrow] at memory location 0x00000000.." and the HRESULT of the "HRESULT hr = pDotNetCOMPtr-Init();" line in my C++ code is "The system cannot find the specified file" I'm new to COM so if anyone has any ideas or pointer to get me going the right direction, I'd appreciate it, Thanks

  Read the article

• Is recursion ever faster than looping?

  - by Carson Myers

  I know that recursion is sometimes a lot cleaner than looping, and I'm not asking anything about when I should use recursion over iteration, I know there are lots of questions about that already. What I'm asking is, is recursion ever faster than a loop? To me it seems like, you would always be able to refine a loop and get it to perform more quickly than a recursive function because the loop is absent constantly setting up new stack frames. I'm specifically looking for whether recursion is faster in applications where recursion is the right way to handle the data, such as in some sorting functions, in binary trees, etc.

  Read the article

• PHP, Codeigniter: How to Set Date/Time based on users timezone/location globally in a web app?

  - by Abs

  Hello all, I have just realised if I add a particular record to my MySQL database - it will have a date/time of the server and not the particular user and where they are located which means my search function by date is useless! As they will not be able to search by when they have added it in their timezone rather when it was added in the servers timezone. Is there a way in Codeigniter to globally set time and date specific to a users location (maybe using their IP) and every time I call date() or time() that users timezone is used. What I am actually asking for is probably how to make my application dependent on each users timezone? Maybe its better to store each users timezone in their profile and have a standard time (servers time) and then convert the time to for each user? Thanks all

  Read the article

• Registry ReadString method is not working in Windows 7 in Delphi 7

  - by Tofig Hasanov

  The following code sample used to return me windows id before, but now it doesn't work, and returns empty string, dunno why. function GetWindowsID: string; var Registry: TRegistry; str:string; begin Registry := TRegistry.Create(KEY_WRITE); try Registry.Lazywrite := false; Registry.RootKey := HKEY_LOCAL_MACHINE; // Registry.RootKey := HKEY_CURRENT_USER; if CheckForWinNT = true then Begin if not Registry.OpenKeyReadOnly('\Software\Microsoft\Windows NT\CurrentVersion') then showmessagE('cant open'); end else Registry.OpenKeyReadOnly('\Software\Microsoft\Windows\CurrentVersion'); str := Registry.ReadString('ProductId'); result:=str; Registry.CloseKey; finally Registry.Free; end; // try..finally end; Anybody can help?

  Read the article

• JavaScriptSerializer with custom Type

  - by balint

  Hi, I have a function with a List return type. I'm using this in a JSON-enabled WebService like: [WebMethod(EnableSession = true)] [ScriptMethod(ResponseFormat = ResponseFormat.Json)] public List<Product> GetProducts(string dummy) /* without a parameter, it will not go through */ { return new x.GetProducts(); } this returns: {"d":[{"__type":"Product","Id":"2316","Name":"Big Something ","Price":"3000","Quantity":"5"}]} I need to use this code in a simple aspx file too, so I created a JavaScriptSerializer: JavaScriptSerializer js = new JavaScriptSerializer(); StringBuilder sb = new StringBuilder(); List<Product> products = base.GetProducts(); js.RegisterConverters(new JavaScriptConverter[] { new ProductConverter() }); js.Serialize(products, sb); string _jsonShopbasket = sb.ToString(); but it returns without a type: [{"Id":"2316","Name":"Big One ","Price":"3000","Quantity":"5"}] Does anyone have any clue how to get the second Serialization work like the first? Thanks!

  Read the article

• Difference between performSelectorInBackground and NSOperation Subclass

  - by AmitSri

  I have created one testing app for running deep counter loop. I run the loop fuction in background thread using performSelectorInBackground and also NSOperation subclass separately. I am also using performSelectorOnMainThread to notify main thread within backgroundthread method and [NSNotificationCenter defaultCenter] postNotificationName within NSOperation subclass to notify main thread for updating UI. Initially both the implementation giving me same result and i am able to update UI without having any problem. The only difference i found is the Thread count between two implementations. The performSelectorInBackground implementation created one thread and got terminated after loop finished and my app thread count again goes to 1. The NSOperation subclass implementation created two new threads and keep exists in the application and i can see 3 threads after loop got finished in main() function. So, my question is why two threads created by NSOperation and why it didn't get terminated just like the first background thread implementation? I am little bit confuse and unable to decide which implementation is best in-terms of performance and memory management. Thanks

  Read the article

• Emacs X11 autocompletion (intellisense)

  - by JC

  Hi everyone, I use visual studio for day to day programming (read putting food in my mouth) but for personal programming (read c/c++ hacking) I use Emacs. Right now I am doing a programming exercise involving the X11 API. I am continually referring to the programming API manual to find the signature of function calls. What would be really nice would be if there was an emacs alternative to the visual studio intellisense. I know there is autocompletion for the language specifics. Is there such an extension available to Emacs? Or if not, is there way of creating one, maybe using the language specifics mechanism already used for auto completion?

  Read the article

• Installing Recaptcha in Joomla 1.5 user registration

  - by Samuel

  I am trying to install ReCaptcha into the user registration of Joomla 1.5. This may just be an issue with Joomla but when i hit register nothing happens. I think it's doing some JavaScript form validation but there is nothing telling the user what went wrong. if, God forbid, they do fill out the form correctly Joomla will redirect the user to the homepage and give no notice of success. Is this a Joomla issue or is there something wrong with my install? Does anyone know of a plug-in or module for Joomla that would make this easier? Thanks in advance, Samuel UPDATE: Joomla does a lot of "stuff"/"something" to the $_POST and $_GET variables which was causing the reCaptcha to not function. This was for work which is past so I am not spending anymore time on it. Shameless Plug: use wordpress instead. this can be closed as I don't have time to verify which answer works

  Read the article

• How do I manipulate a jqGrid's search/filters?

  - by AaronSieb

  I have a jqGrid with a navBar that has search: true and multipleSearch: true. I would like to add a button to my UI that automatically adds an additional rule to the search. I've tried manipulating the postData for the filter directly, but values added this way don't show up in the search UI. I've also tried accessing the search box directly using jQuery, like this: $('#fbox_list').searchFilter().add(); $('#fbox_list .sf .data input').each(function(index) { alert($(this).val()); }); But, in addition to feeling hackish, it only works if the user has already clicked on the search button (the fbox_list div is not constructed on load). Has anyone else dealt with an issue like this?

  Read the article

• Assert a good practice or not ?

  - by rkenshin

  Is it a good practice to use Assert for function parameters to enforce their validity. I was going through the source code of Spring Framework and I noticed that they use Assert.notNull a lot. Here's an example public static ParsedSql parseSqlStatement(String sql) { Assert.notNull(sql, "SQL must not be null");} Here's Another one public NamedParameterJdbcTemplate(DataSource dataSource) { Assert.notNull(dataSource, "The [dataSource] argument cannot be null."); this .classicJdbcTemplate = new JdbcTemplate(dataSource); } public NamedParameterJdbcTemplate(JdbcOperations classicJdbcTemplate) { Assert.notNull(classicJdbcTemplate, "JdbcTemplate must not be null"); this .classicJdbcTemplate = classicJdbcTemplate; } Thank you

  Read the article

• [PowerShell] Sql Server SMO connection timeout not working

  - by Uros Calakovic

  I have the following PowerShell code: function Get-SmoConnection { param ([string] $serverName = "", [int] $connectionTimeout = 0) if($serverName.Length -eq 0) { $serverConnection = New-Object ` Microsoft.SqlServer.Management.Common.ServerConnection } else { $serverConnection = New-Object ` Microsoft.SqlServer.Management.Common.ServerConnection($serverName) } if($connectionTimeout -ne 0) { $serverConnection.ConnectTimeout = $connectionTimeout } try { $serverConnection.Connect() $serverConnection } catch [system.Management.Automation.MethodInvocationException] { $null } } $connection = get-smoconnection "ServerName" 2 if($connection -ne $null) { Write-Host $connection.ServerInstance Write-Host $connection.ConnectTimeout } else { Write-Host "Connection could not be established" } It seems to work, except for the part that attempts to set the SMO connection timeout. If the connection is successful, I can verify that ServerConnection.ConnectTimeout is set to 2 (seconds), but when I supply a bogus name for the SQL Server instance, it still attempts to connect to it for ~ 15 seconds (which is I believe the default timeout value). Does anyone have experience with setting SMO connection timeout? Thank you in advance.

  Read the article

• How to implement full text search in Django?

  - by Jannis

  I would like to implement a search function in a django blogging application. The status quo is that I have a list of strings supplied by the user and the queryset is narrowed down by each string to include only those objects that match the string. See: if request.method == "POST": form = SearchForm(request.POST) if form.is_valid(): posts = Post.objects.all() for string in form.cleaned_data['query'].split(): posts = posts.filter( Q(title__icontains=string) | Q(text__icontains=string) | Q(tags__name__exact=string) ) return archive_index(request, queryset=posts, date_field='date') Now, what if I didn't want do concatenate each word that is searched for by a logical AND but with a logical OR? How would I do that? Is there a way to do that with Django's own Queryset methods or does one have to fall back to raw SQL queries? In general, is it a proper solution to do full text search like this or would you recommend using a search engine like Solr, Whoosh or Xapian. What are there benefits? Thanks for taking the time

  Read the article

• Understanding prototype method calls

  - by Tristan

  In trying to call a method on the CodeMirror javascript code editor. I'm new to javascript and trying to understand how object oriented stuff works. I'm having problems calling what I believe are methods. For instance, var editor = CodeMirror.fromTextArea('code', options); editor.grabKeys(function(e) { alert("Key event");}); This gives the Uncaught TypeError: Cannot call method 'grabKeys' of undefined. Looking at the editor object reveals that grabKeys seems to be located at editor.__proto__.grabKeys. How should I be thinking about this?

  Read the article

• JavaScript - string regex backreferences

  - by quano

  You can backreference like this in JavaScript: var str = "123 $test 123"; str = str.replace(/(\$)([a-z]+)/gi, "$2"); This would (quite silly) replace "$test" with "test". But imagine I'd like to pass the resulting string of $2 into a function, which returns another value. I tried doing this, but instead of getting the string "test", I get "$2". Is there a way to achieve this? // Instead of getting "$2" passed into somefunc, I want "test" // (i.e. the result of the regex) str = str.replace(/(\$)([a-z]+)/gi, somefunc("$2"));

  Read the article

< Previous Page | 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049  | Next Page >