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• Using System.Security.SecureString in .NET Remoting App?

  - by Beaner

  I am developing a Remoting application where a client looks up store specific information to login to a web server. It sets the user name and passwords in a class that stores the properties as System.Security.SecureString. I then try to pass the class with the login credentials to a server object that uses it to connect to the web host, get and some information back. When I call the server method I this error:Type 'System.Security.SecureString' in Assembly 'mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' is not marked as serializable. The class that contains the SecureStrings is marked as serializeable, and this was working while developing until I added the SecureString properties. Is there something I need to do to make this work, or am I going to have to change SecureString to String?

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• Rendering WPF DrawingGroup to single ImageSource

  - by Xander

  Currently I'm using a System.Windows.Media.DrawingGroup to store some tiled images (ImageDrawing) inside the Children-DrawingCollection property. Well the problem is now, this method gets really slow if you display the entire DrawingGroup in an Image control, because my DrawingGroup can contain hundreds or even thousands of small images it can really mess up the performance. So my first thought was to somehow render a single image from all the small ones inside the DrawingGroup and then only display that image, that would be much faster. But as you might have figured out I haven't found any solution so simply combine several images with WPF Imaging. It would really be great if someone could help with this problem or tell me how i can improve the performance with the DrawingGroup or even use another approach. One last thing, currently I'm using a RenderTargetBitmap to generate a single BitmapSource from the DrawingGroup, this approach isn't really faster, but it makes the scrolling and working on the Image control at least a little smoother.

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• Active Directory Services: PrincipalContext -- What is the DN of a "container" object?

  - by Ranger Pretzel

  I'm currently trying to authenticate via Active Directory Services using the PrincipalContext class. I would like to have my application authenticate to the Domain using Sealed and SSL contexts. In order to do this, I have to use the following constructor of PrincipalContext (link to MSDN page): public PrincipalContext( ContextType contextType, string name, string container, ContextOptions options ) Specifically, I'm using the constructor as so: PrincipalContext domainContext = new PrincipalContext( ContextType.Domain, domain, container, ContextOptions.Sealing | ContextOptions.SecureSocketLayer); MSDN says about "container": The container on the store to use as the root of the context. All queries are performed under this root, and all inserts are performed into this container. For Domain and ApplicationDirectory context types, this parameter is the distinguished name (DN) of a container object. What is the DN of a container object? How do I find out what my container object is? Can I query the Active Directory (or LDAP) server for this?

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• ESB Toolkit.exceptionHandling Error - The application does not exist - Any ideas?

  - by Andrew Cripps

  Hello I am getting following error while attempting to run the Management Portal for ESB Toolkit 2.0: Event Type: Warning Event Source: ENTSSO Event Category: Enterprise Single Sign-On Event ID: 10536 Description: SSO AUDIT Function: GetConfigInfo (SSOProperties) Application Name: ESB Toolkit.exceptionHandling Error Code: 0xC0002A04, The application does not exist I am using SSO config store for the ESB Config. However, looking in the esb.config file, there is no section, like there is for the other esb SSO applications. Why might this section (and therefore the SSO app) be missing? How can I set it up? Thanks for any help with this Andrew

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• Triple-DES encryption in android.

  - by Raj

  Hi, i am new to android and planning to use Triple-DES encryption to encrypt data and store it into the DataBase in my android application. the thing is if i try to use DES or Triple DES its giving Hexadecimal encrypted string. But i need some encrypted value which looks like my previous value. i have 3 kinds of variables to encrypt. those are String,numeric and Date type variables. My requirement is if i encrypt a date type, i need to get the cipher text looks like date. So can any one suggest with an example to impliment and encryption technique.

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• Validate signature on EXE with CertGetCertificateChain

  - by cobaia

  I would like to verify a signed executable. The requirement is to validate that the executable itself is valid and where it came from (probably from the subject of the cert). The cert type is PKCS. I found a similar posting here, http://stackoverflow.com/questions/301024/validate-authenticode-signature-on-exe-c-without-capicom The Microsoft documentation, among others, appears to point to CertGetCertificateChain, but the examples tend to work with certificates that are in a store. Does anyone know how to validate a signed executable using CertGetCertificateChain and related API's?

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• Very large database, very small portion most being retrieved in real time

  - by ming yeow

  Hi folks, I have an interesting database problem. I have a DB that is 150GB in size. My memory buffer is 8GB. Most of my data is rarely being retrieved, or mainly being retrieved by backend processes. I would very much prefer to keep them around because some features require them. Some of it (namely some tables, and some identifiable parts of certain tables) are used very often in a user facing manner How can I make sure that the latter is always being kept in memory? (there is more than enough space for these) More info: We are on Ruby on rails. The database is MYSQL, our tables are stored using INNODB. We are sharding the data across 2 partitions. Because we are sharding it, we store most of our data using JSON blobs, while indexing only the primary keys

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• SSIS Configuration error: Cannot retrieve configuration table schema

  - by Glenn M

  I'm trying to add a simple configuration to a SSIS package, of type SQL Server, so stored in a table. At the end of the wizard, when it goes to try and write a new row to the nominated table to store the configuration it fails with the error: TITLE: Microsoft Visual Studio Could not complete wizard actions. Cannot retrieve configuration table schema. (Microsoft.DataTransformationServices.Wizards) I can't seem to resolve this. The configuration connection has full permissions on the table, and it sees it and can read from it as it reports there is no current data for the filter I provide. It just wont write to it. A Google search of the error message above in quotes returns literally no hits! Any suggestions? Glenn

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• (PHP) SHA1 vs md5 vs SHA256: which to use for a PHP login?

  - by hatorade

  I'm making a php login, and I'm trying to decide whether to use SHA1 or Md5, or SHA256 which I read about in another stackoverflow article. Are any of them more secure than others? For SHA1/256, do I still use a salt? Also, is this a secure way to store the password as a hash in mysql? function createSalt() { $string = md5(uniqid(rand(), true)); return substr($string, 0, 3); } $salt = createSalt(); $hash = sha1($salt . $hash);

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• Microsoft.Web.Administration.ServerManager can't read config sections containing encrypted passwords

  - by Dylan Beattie

  I have some sites in IIS7 that are configured to run as domain users (MYDOMAIN\someuser). I'm using the Microsoft.Web.Administration namespace to scan my server configuration, but it's throwing an exception when I hit one of these "impersonator" sites: using (ServerManager sm = new ServerManager()) { foreach (Site site in sm.Sites) { foreach (Application app in site.Applications.Reverse()) { foreach (VirtualDirectory vdir in app.VirtualDirectories.Reverse()) { var config = app.GetWebConfiguration(); foreach (var locationPath in config.GetLocationPaths()) { // error occurs in GetLocationPaths() } } } } } The actual error message is: COMException was unhandled Filename: \\?\C:\Windows\system32\inetsrv\config\applicationHost.config Line number: 279 Error: Failed to decrypt attribute 'password' because the keyset does not exist It appears that IIS is storing the MYDOMAIN\someuser password encrypted in applicationHost.config, which is great in terms of security - but I have no idea how to get the ServerManager to decrypt this. Any tips on how I can either allow ServerManager to decrypt this, or just tell IIS to store the passwords in plain text? This is on IIS7 under Windows 7 RC, by the way.

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• dojox.grid.DataGrid can't display repeat rows?

  - by Robert

  We have a situation where we need to display data from a database in a grid which has repeat rows, but it seems at least the basic examples fail when the cell data is identical with Sorry, an error occurred. An example follows: <script dojo.require("dojo.data.ItemFileWriteStore"); dojo.require("dojox.grid.DataGrid"); var historyData = { 'identifier': 'time', 'label': 'time', 'items': [ { 'message': 'Please turn in your TPS reports immediately', 'time': 'March 3 2010 7:20 AM', 'sentBy':'Bill Lumbergh' }, { 'message': 'Please turn in your TPS reports immediately', 'time': 'March 3 2010 7:20 AM', 'sentBy':'Bill Lumbergh' }] }; var historyGridLayout = [ [{ field: "message", name: "Message" }, { field: "time", name: "Display Date & Time" }, { field: "sentBy", name: "Sent By" }]]; </script <body class="tundra " <div dojoType="dojo.data.ItemFileWriteStore" data="historyData" jsId="historyStore" </div <div id="grid" dojoType="dojox.grid.DataGrid" store="historyStore" structure="historyGridLayout" </div </body Help!

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• Locking Cache Key without Locking the entire Cache

  - by Gandalf

  I have servlets that caches user information rather then retrieving it from the user store on every request (shared Ehcache). The issue I have is that if a client is multi-threaded and they make more then one simultaneous request, before they have been authenticated, then I get this in my log: Retrieving User [Bob] Retrieving User [Bob] Retrieving User [Bob] Returned [Bob] ...caching Returned [Bob] ...caching Returned [Bob] ...caching What I would want is that the first request would call the user service, while the other two requests get blocked - and when the first request returns, and then caches the object, the other two requests go through: Retrieving User [Bob] blocking... blocking... Returned [Bob] ...caching [Bob] found in cache [Bob] found in cache I've thought about locking on the String "Bob" (because due to interning it's always the same object right?). Would that work? And if so how do I keep track of the keys that actually exist in the cache and build a locking mechanism around them that would then return the valid object once it's retrieved. Thanks.

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• Extjs combobox - doQuery callback?

  - by Ben

  Hi there, I'm using the following combobox: var cb = new Ext.form.ComboBox({ store: someDs, fieldLabel: 'test', valueField:'name', displayField:'name_id', typeAhead: true, minChars: 3, triggerAction: 'query' }); So when the user typed in 3 chars, a query to the server is made showing the proper results. Now I try to make the user input programmatically usint the doQuery() function of the combobox. After calling the doQuery() method, I want to seledct an Item via setValue(). cb.doQuery('myval'); cb.setValue('myval'); The problem is that setValue() can't select the propper value, because at the time it is called, the request started through doQuery() hasn't finished. So I need something like a callback in which I could use setValue() - but doQuery() doesn't seem to have a callback function. any ideas? thanks!

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• ExtJS RowEditor on Grid

  - by Ian Warner

  Hi When my users edits the Grid via RowEditor combo entries and checkboxes are annoying 1 Apple 2 Orange 3 Pear For instance with the combo above the user will select Orange then update - the Grid now instead of saying orange will display the number 2 - I would like it to show orange when a successful edit has been made. code for my combo editor : { allowBlank : false, displayField : 'team', editable : false, emptyText : 'Select Team', forceSelection : true, lazyRender : true, mode : 'remote', name : 'team', store : storeTeam, triggerAction : 'all', valueField : 'id', xtype : 'combo' } I think I read that you could send the complete row back to insert or I should listen to the update of the grid and then change the field but I need some guidance on what is best Cheers

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• iPad Web App: Detect Virtual Keyboard Using JavaScript in Safari?

  - by LKM

  I'm writing a web app for the iPad (not a regular App Store app - it's written using HTML, CSS and JavaScript). Since the keyboard fills up a huge part of the screen, it would make sense to change the app's layout to fit the remaining space when the keyboard is shown. However, I have found no way to detect when or whether the keyboard is shown. My first idea was to assume that the keyboard is visible when a text field has focus. However, when an external keyboard is attached to an iPad, the virtual keyboard does not show up when a text field receives focus. In my experiments, the keyboard also did not affect the height or scrollheight of any of the DOM elements, and I have found no proprietary events or properties which indicate whether the keyboard is visible.

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• timetable in a jTable

  - by chandra

  I want to create a timetable in a jTable. For the top row it will display from monday to sunday and the left colume will display the time of the day with 2h interval e.g 1st colume (0000 - 0200), 2nd colume (0200 - 0400) .... And if i click a button the timing will change from 2h interval to 1h interval. I do not want to hardcode it because i need to do for 2h, 1h, 30min , 15min, 1min, 30sec and 1 sec interval and it will take too long for me to hardcode. Can anyone show me an example or help me create an example for the 2h to 1h interval so that i know what to do? The data array is for me to store data and are there any other easier or shortcuts for me to store them because if it is in 1 sec interval i got thousands of array i need to type it out. private void oneHour() //1 interval functions { if(!once) { initialize(); once = true; } jTable.setModel(new javax.swing.table.DefaultTableModel( new Object [][] { {"0000 - 0100", data[0][0], data[0][1], data[0][2], data[0][3], data[0][4], data[0][5], data[0][6]}, {"0100 - 0200", data[2][0], data[2][1], data[2][2], data[2][3], data[2][4], data[2][5], data[2][6]}, {"0200 - 0300", data[4][0], data[4][1], data[4][2], data[4][3], data[4][4], data[4][5], data[4][6]}, {"0300 - 0400", data[6][0], data[6][1], data[6][2], data[6][3], data[6][4], data[6][5], data[6][6]}, {"0400 - 0600", data[8][0], data[8][1], data[8][2], data[8][3], data[8][4], data[8][5], data[8][6]}, {"0600 - 0700", data[10][0], data[4][1], data[10][2], data[10][3], data[10][4], data[10][5], data[10][6]}, {"0700 - 0800", data[12][0], data[12][1], data[12][2], data[12][3], data[12][4], data[12][5], data[12][6]}, {"0800 - 0900", data[14][0], data[14][1], data[14][2], data[14][3], data[14][4], data[14][5], data[14][6]}, {"0900 - 1000", data[16][0], data[16][1], data[16][2], data[16][3], data[16][4], data[16][5], data[16][6]}, {"1000 - 1100", data[18][0], data[18][1], data[18][2], data[18][3], data[18][4], data[18][5], data[18][6]}, {"1100 - 1200", data[20][0], data[20][1], data[20][2], data[20][3], data[20][4], data[20][5], data[20][6]}, {"1200 - 1300", data[22][0], data[22][1], data[22][2], data[22][3], data[22][4], data[22][5], data[22][6]}, {"1300 - 1400", data[24][0], data[24][1], data[24][2], data[24][3], data[24][4], data[24][5], data[24][6]}, {"1400 - 1500", data[26][0], data[26][1], data[26][2], data[26][3], data[26][4], data[26][5], data[26][6]}, {"1500 - 1600", data[28][0], data[28][1], data[28][2], data[28][3], data[28][4], data[28][5], data[28][6]}, {"1600 - 1700", data[30][0], data[30][1], data[30][2], data[30][3], data[30][4], data[30][5], data[30][6]}, {"1700 - 1800", data[32][0], data[32][1], data[32][2], data[32][3], data[32][4], data[32][5], data[32][6]}, {"1800 - 1900", data[34][0], data[34][1], data[34][2], data[34][3], data[34][4], data[34][5], data[34][6]}, {"1900 - 2000", data[36][0], data[36][1], data[36][2], data[36][3], data[36][4], data[36][5], data[36][6]}, {"2000 - 2100", data[38][0], data[38][1], data[38][2], data[38][3], data[38][4], data[38][5], data[38][6]}, {"2100 - 2200", data[40][0], data[40][1], data[40][2], data[40][3], data[40][4], data[40][5], data[40][6]}, {"2200 - 2300", data[42][0], data[42][1], data[42][2], data[42][3], data[42][4], data[42][5], data[42][6]}, {"2300 - 2400", data[44][0], data[44][1], data[44][2], data[44][3], data[44][4], data[44][5], data[44][6]}, {"2400 - 0000", data[46][0], data[46][1], data[46][2], data[46][3], data[46][4], data[46][5], data[46][6]}, }, new String [] { "Time/Day", "(Mon)", "(Tue)", "(Wed)", "(Thurs)", "(Fri)", "(Sat)", "(Sun)" } )); } private void twoHour() //2 hour interval functions { if(!once) { initialize(); once = true; } jTable.setModel(new javax.swing.table.DefaultTableModel( new Object [][] { {"0000 - 0200", data[0][0], data[0][1], data[0][2], data[0][3], data[0][4], data[0][5], data[0][6]}, {"0200 - 0400", data[4][0], data[4][1], data[4][2], data[4][3], data[4][4], data[4][5], data[4][6]}, {"0400 - 0600", data[8][0], data[8][1], data[8][2], data[8][3], data[8][4], data[8][5], data[8][6]}, {"0600 - 0800", data[12][0], data[12][1], data[12][2], data[12][3], data[12][4], data[12][5], data[12][6]}, {"0800 - 1000", data[16][0], data[16][1], data[16][2], data[16][3], data[16][4], data[16][5], data[16][6]}, {"1000 - 1200", data[20][0], data[20][1], data[20][2], data[20][3], data[20][4], data[20][5], data[20][6]}, {"1200 - 1400", data[24][0], data[24][1], data[24][2], data[24][3], data[24][4], data[24][5], data[24][6]}, {"1400 - 1600", data[28][0], data[28][1], data[28][2], data[28][3], data[28][4], data[28][5], data[28][6]}, {"1600 - 1800", data[32][0], data[32][1], data[32][2], data[32][3], data[32][4], data[32][5], data[32][6]}, {"1800 - 2000", data[36][0], data[36][1], data[36][2], data[36][3], data[36][4], data[36][5], data[36][6]}, {"2000 - 2200", data[40][0], data[40][1], data[40][2], data[40][3], data[40][4], data[40][5], data[40][6]}, {"2200 - 2400",data[44][0], data[44][1], data[44][2], data[44][3], data[44][4], data[44][5], data[44][6]} },

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• How to use WINAPI from newer SDK but still using the old SDK in WindowsMobile.

  - by afriza

  Specifically, I want to use Point-to-point Message Queue but because I am still using legacy codes in eVC++ 4 and it only support until PocketPC 2003SE SDK, I cannot find CreateMsgQueue and friends in the headers (the port to newer VisualStudio is still in progess) I am using the Message Queue to do IPC with apps developed with WM-6.5-DTK (VS2005). Update: I am using the following code (taken from msgqueue.h) to store function pointers and load CoreDLL.dll using GetProcAddress() and LoadLibrary() respectively. HANDLE /*WINAPI*/ (*CreateMsgQueue)(LPCWSTR lpName, LPMSGQUEUEOPTIONS lpOptions); HANDLE /*WINAPI*/ (*OpenMsgQueue)(HANDLE hSrcProc, HANDLE hMsgQ , LPMSGQUEUEOPTIONS lpOptions); BOOL /*WINAPI*/ (*ReadMsgQueue)(HANDLE hMsgQ, /*__out_bcount(cbBufferSize)*/ LPVOID lpBuffer, DWORD cbBufferSize, LPDWORD lpNumberOfBytesRead, DWORD dwTimeout, DWORD *pdwFlags); BOOL /*WINAPI*/ (*WriteMsgQueue)(HANDLE hMsgQ, LPVOID lpBuffer, DWORD cbDataSize, DWORD dwTimeout, DWORD dwFlags); BOOL /*WINAPI*/ (*GetMsgQueueInfo)(HANDLE hMsgQ, LPMSGQUEUEINFO lpInfo); BOOL /*WINAPI*/ (*CloseMsgQueue)(HANDLE hMsgQ); Is the above code alright since I need to comment out WINAPI and __out_bcount(cbBufferSize) in order for them to compile.

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• ASP.NET MVC authentication for iPhone application

  - by manu08

  This is for an ASP.NET MVC application. For browser based access on my normal controllers, I'm using standard forms authentication and auth cookies. My question is how I do the same for an iPhone application. I have a set of RESTful controllers that the iPhone application uses directly, but I'm not sure how to go about authentication... I was thinking of having a special Login method that returns the auth cookie. Then I can use the standard Authentication attribute on the ASP.NET MVC side, but I'm not sure how to handle this on the iPhone side? Can I store this cookie and have it automatically sent with every request? Perhaps there's a better approach altogether?

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• Good place to look for example Database Designs - Best practices

  - by Younes

  I have been given the task to design a database to store a lot of information for our company. Because the task is rather big and contains multiple modules where users should be able to do stuff, I'm worried about designing a good data model for this. I just don't want to end up with a badly designed database. I want to have some decent examples of database structures for contracts / billing / orders etc to combine those in one nice relational database. Are there any resources out there that can help me with some examples regarding this?

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• iPhone App rejected because of Three20 private API undocumented, private UITouch instance variables:

  - by Sijo

  I got a notification mail after submitting to app store.. "During our review of your application we found it is using private APIs, which is in violation of the iPhone Developer Program License Agreement section 3.3.1; "3.3.1 Applications may only use Documented APIs in the manner prescribed by Apple and must not use or call any private APIs." While your application has not been rejected, it would be appropriate to resolve this issue in your next update. The non-public APIs that are included in your application are the following undocumented, private UITouch instance variables: firstResponder UITouch._locationInWindow UITouch._phase UITouch._previousLocationInWindow UITouch._tapCount UITouch._timestamp UITouch._touchFlags UITouch._view UITouch._window Please resolve this issue in your next update to Application " . My application contains Three20. These variables are used in "UIViewAdditions.m". Is there any way to resolve this issue ? Please help me. Thanks in advance

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• moq SetupSet is obsolete. In place of what?

  - by jkohlhepp

  Let's say I want to use moq to create a callback on a setter to store the set property in my own field for later use. (Contrived example - but it gets to the point of the question.) I could do something like this: myMock.SetupSet(x => x.MyProperty).Callback(value => myLocalVariable = value); And that works just fine. However, SetupSet is obsolete according to Intellisense. But it doesn't say what should be used as an alternative. I know that moq provides SetupProperty which will autowire the property with a backing field. But that is not what I'm looking for. I want to capture the set value into my own variable. How should I do this using non-obsolete methods?

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• How to write php->mysql queries?

  - by Bluemagica

  Is there any good tutorial that has all the basic rules for writing queries to store $_Post vars from php to mysql? Like when to use backticks and singleqoutes, and how to safely write code with functions like get_magic_quotes_gpc()? Another thing is, assuming there is no javascript validation(since the user can easily turn it off), how should I handle empty form fields being sent as empty $_post variables and throwing errors? Do I have to use isset() call on all the post variables? What is the best way to handle users turning off javascript validation on a form?

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• Programmatically set a TaxonomyField on a list item

  - by Mel Gerats

  The situation: I have a bunch of Terms in the Term Store and a list that uses them. A lot of the terms have not been used yet, and are not available yet in the TaxonomyHiddenList. If they are not there yet they don't have an ID, and I can not add them to a list item. There is a method GetWSSIdOfTerm on Microsoft.SharePoint.Taxonomy.TaxonomyField that's supposed to return the ID of a term for a specific site. This gives back IDs if the term has already been used and is present in the TaxonomyHiddenList, but if it's not then 0 is returned. Is there any way to programmatically add terms to the TaxonomyHiddenList or force it happening?

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• Open source embedded filesystem (or single file virtual filesystem, or structured storage) library f

  - by Ioan

  I'm not sure what the "general" name of something like this might be. I'm looking for a library that gives me a file format to store different types of binary data in an expanding single file. open source, non-GPL (LGPL ok) C interface the file format is a single file multiple files within using a POSIX-like file API (or multiple "blobs" within using some other API) file/structure editing is done in-place reliable first, performant second Examples include: the virtual drives of a virtual machine whefs HDF CDF NetCDF Problems with the above: whefs doesn't appear to be very mature, but best describes what I'm after HDF, CDF, NetCDF are usable (also very reliable and fast), but they're rather complicated and I'm not entirely convinced of their support for opaque binary "blobs" Edit: Forgot to mention, one other relevant question: http://stackoverflow.com/questions/1361560/simple-virtual-filesystem-in-c-c Another similar question: http://stackoverflow.com/questions/374417/is-there-an-open-source-alternative-to-windows-compound-files Edit: Added condition of in-place editing.

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• Cocoa structs and NSMutableArray

  - by Circle

  I have an NSMutableArray that I'm trying to store and access some structs. How do I do this? 'addObject' gives me an error saying "Incompatible type for argument 1 of addObject". Here is an example ('in' is a NSFileHandle, 'array' is the NSMutableArray): //Write points for(int i=0; i<5; i++) { struct Point p; buff = [in readDataOfLength:1]; [buff getBytes:&(p.x) length:sizeof(p.x)]; [array addObject:p]; } //Read points for(int i=0; i<5; i++) { struct Point p = [array objectAtIndex:i]; NSLog(@"%i", p.x); }

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