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• Android SQLiteConstraintException: error code 19: constraint failed

  - by Tom D

  I've seen other questions about this exception, but all of them seem to be resolved with the solution that a row with the primary key specified already exists. This doesn't seem to be the case for me. I have tried replacing all single quotes in my strings with double quotes, but the same problem occurs. I'm trying to insert a row into the Settings table of the SQLite database I've created by doing the following: db.execSQL("DROP TABLE IF EXISTS "+Settings.SETTINGS_TABLE_NAME + ";"); db.execSQL(CREATE_MEDIA_TABLE); db.execSQL(CREATE_SETTINGS_TABLE); Cursor c = getAllSettings(); //If there isn't already a settings row, create a row full of defaults if(c.getCount()==0){ ContentValues cv = new ContentValues(); cv.put(Settings.SETTING_UNIQUE_ID, "'"+Settings.uniqueID+"'"); cv.put(Settings.SETTING_DEVICE_ID, Settings.SETTING_DEVICE_ID_DEFAULT); cv.put(Settings.SETTING_CONNECTION_PREFERENCE, Settings.SETTING_CONNECTION_PREFERENCE_DEFAULT); cv.put(Settings.SETTING_AD_HOC_ENABLED, Settings.SETTING_AD_HOC_ENABLED_DEFAULT); cv.put(Settings.SETTING_SERVER_ADDRESS, Settings.SETTING_SERVER_ADDRESS_DEFAULT); cv.put(Settings.SETTING_RECORDING_MODE, Settings.SETTING_RECORDING_MODE_DEFAULT); cv.put(Settings.SETTING_PREVIEW_ENABLED, Settings.SETTING_PREVIEW_ENABLED_DEFAULT); cv.put(Settings.SETTING_PICTURE_RESOLUTION_X, Settings.SETTING_PICTURE_RESOLUTION_X_DEFAULT); cv.put(Settings.SETTING_PICTURE_RESOLUTION_Y, Settings.SETTING_PICTURE_RESOLUTION_Y_DEFAULT); cv.put(Settings.SETTING_VIDEO_RESOLUTION_X, Settings.SETTING_VIDEO_RESOLUTION_X_DEFAULT); cv.put(Settings.SETTING_VIDEO_RESOLUTION_Y, Settings.SETTING_VIDEO_RESOLUTION_Y_DEFAULT); cv.put(Settings.SETTING_VIDEO_FPS, Settings.SETTING_VIDEO_FPS_DEFAULT); cv.put(Settings.SETTING_AUDIO_BITRATE_KBPS, Settings.SETTING_AUDIO_BITRATE_KBPS_DEFAULT); cv.put(Settings.SETTING_STORE_TO_SD, Settings.SETTING_STORE_TO_SD_DEFAULT); cv.put(Settings.SETTING_STORAGE_LIMIT_MB, Settings.SETTING_STORAGE_LIMIT_MB_DEFAULT); this.db.insert(Settings.SETTINGS_TABLE_NAME, null, cv); } The CREATE_SETTINGS_TABLE string is defined as the following: private static String CREATE_SETTINGS_TABLE = "CREATE TABLE IF NOT EXISTS " + Settings.SETTINGS_TABLE_NAME + "(" + Settings.SETTING_UNIQUE_ID + " TEXT NOT NULL PRIMARY KEY, " + Settings.SETTING_DEVICE_ID + " TEXT NOT NULL , " + Settings.SETTING_CONNECTION_PREFERENCE + " TEXT NOT NULL CHECK("+Settings.SETTING_CONNECTION_PREFERENCE+" IN("+Settings.SETTING_CONNECTION_PREFERENCE_ALLOWED+")), " + Settings.SETTING_AD_HOC_ENABLED + " TEXT NOT NULL CHECK("+Settings.SETTING_AD_HOC_ENABLED+" IN("+Settings.SETTING_AD_HOC_ENABLED_ALLOWED+")), " + Settings.SETTING_SERVER_ADDRESS + " TEXT NOT NULL, " + Settings.SETTING_RECORDING_MODE + " TEXT NOT NULL CHECK("+Settings.SETTING_RECORDING_MODE+" IN("+Settings.SETTING_RECORDING_MODE_ALLOWED+")), " + Settings.SETTING_PREVIEW_ENABLED + " TEXT NOT NULL CHECK("+Settings.SETTING_PREVIEW_ENABLED+" IN("+Settings.SETTING_PREVIEW_ENABLED_ALLOWED+")), " + Settings.SETTING_PICTURE_RESOLUTION_X + " TEXT NOT NULL, " + Settings.SETTING_PICTURE_RESOLUTION_Y + " TEXT NOT NULL, " + Settings.SETTING_VIDEO_RESOLUTION_X + " TEXT NOT NULL, " + Settings.SETTING_VIDEO_RESOLUTION_Y + " TEXT NOT NULL, " + Settings.SETTING_VIDEO_FPS + " TEXT NOT NULL, " + Settings.SETTING_AUDIO_BITRATE_KBPS + " TEXT NOT NULL, " + Settings.SETTING_STORE_TO_SD + " TEXT NOT NULL CHECK("+Settings.SETTING_STORE_TO_SD+" IN("+Settings.SETTING_STORE_TO_SD_ALLOWED+")), " + Settings.SETTING_STORAGE_LIMIT_MB + " TEXT NOT NULL )"; However, when I execute my insert, I always get: 03-19 19:37:36.974: ERROR/Database(386): Error inserting server_address='0.0.0.0' storage_limit='-1' connection='none' preview_enabled='0' sd_enabled='1' video_fps='15' audio_bitrate='96' device_id='-1' recording_mode='none' picture_resolution_x='-1' picture_resolution_y='-1' unique_id='000000000000000' adhoc_enable='0' video_resolution_x='320' video_resolution_y='240' 03-19 19:45:34.284: ERROR/Database(446): android.database.sqlite.SQLiteConstraintException: error code 19: constraint failed It seems as if all the columns in my insert are not null. The row's primary key HAS to be unique, because it's the only row in the table. Therefore, the only thing I can think of is my CHECK conditions aren't true. Here are the predefined strings I'm using: public static final String SETTING_UNIQUE_ID = "unique_id"; public static final String SETTING_DEVICE_ID = "device_id"; public static final String SETTING_DEVICE_ID_DEFAULT = "'-1'"; public static final String SETTING_CONNECTION_PREFERENCE = "connection"; public static final String SETTING_CONNECTION_PREFERENCE_3G = "'3g'"; public static final String SETTING_CONNECTION_PREFERENCE_WIFI = "'wifi'"; public static final String SETTING_CONNECTION_PREFERENCE_NONE = "'none'"; public static final String SETTING_CONNECTION_PREFERENCE_ALLOWED = SETTING_CONNECTION_PREFERENCE_3G+","+SETTING_CONNECTION_PREFERENCE_WIFI+","+SETTING_CONNECTION_PREFERENCE_NONE; public static final String SETTING_CONNECTION_PREFERENCE_DEFAULT = SETTING_CONNECTION_PREFERENCE_NONE; public static final String SETTING_AD_HOC_ENABLED = "adhoc_enable"; public static final String SETTING_AD_HOC_ENABLED_ALLOWED = TRUE+","+FALSE; public static final String SETTING_AD_HOC_ENABLED_DEFAULT = FALSE; public static final String SETTING_SERVER_ADDRESS = "server_address"; public static final String SETTING_SERVER_ADDRESS_DEFAULT = "'0.0.0.0'"; public static final String SETTING_RECORDING_MODE = "recording_mode"; public static final String SETTING_RECORDING_MODE_VIDEO = "'video'"; public static final String SETTING_RECORDING_MODE_AUDIO = "'audio'"; public static final String SETTING_RECORDING_MODE_PICTURE = "'picture'"; public static final String SETTING_RECORDING_MODE_NONE = "'none'"; public static final String SETTING_RECORDING_MODE_ALLOWED = SETTING_RECORDING_MODE_VIDEO+","+SETTING_RECORDING_MODE_AUDIO+","+SETTING_RECORDING_MODE_PICTURE+","+SETTING_RECORDING_MODE_NONE; public static final String SETTING_RECORDING_MODE_DEFAULT = SETTING_RECORDING_MODE_NONE; public static final String SETTING_PREVIEW_ENABLED = "preview_enabled"; public static final String SETTING_PREVIEW_ENABLED_ALLOWED = TRUE+","+FALSE; public static final String SETTING_PREVIEW_ENABLED_DEFAULT = FALSE; public static final String SETTING_PICTURE_RESOLUTION_X = "picture_resolution_x"; public static final String SETTING_PICTURE_RESOLUTION_X_DEFAULT = "'-1'"; public static final String SETTING_PICTURE_RESOLUTION_Y = "picture_resolution_y"; public static final String SETTING_PICTURE_RESOLUTION_Y_DEFAULT = "'-1'"; public static final String SETTING_VIDEO_RESOLUTION_X = "video_resolution_x"; public static final String SETTING_VIDEO_RESOLUTION_X_DEFAULT = "'320'"; public static final String SETTING_VIDEO_RESOLUTION_Y = "video_resolution_y"; public static final String SETTING_VIDEO_RESOLUTION_Y_DEFAULT = "'240'"; public static final String SETTING_VIDEO_FPS = "video_fps"; public static final String SETTING_VIDEO_FPS_DEFAULT = "'15'"; public static final String SETTING_AUDIO_BITRATE_KBPS = "audio_bitrate"; public static final String SETTING_AUDIO_BITRATE_KBPS_DEFAULT = "'96'"; public static final String SETTING_STORE_TO_SD = "sd_enabled"; public static final String SETTING_STORE_TO_SD_ALLOWED = TRUE+","+FALSE; public static final String SETTING_STORE_TO_SD_DEFAULT = TRUE; public static final String SETTING_STORAGE_LIMIT_MB = "storage_limit"; public static final String SETTING_STORAGE_LIMIT_MB_DEFAULT = "'-1'"; public static final String SETTING_CLIP_LENGTH_SECONDS = "clip_length"; public static final String SETTING_CLIP_LENGTH_SECONDS_DEFAULT = "'300'"; Does anyone see what could be going on? I'm stumped. Thanks in advance.

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• MediaPlayer PVMFFailure

  - by kpdvx

  Playing mp3s with the MediaPlayer object, I occasionally get the error "Command PLAYER_INIT completed with an error or info PVMFFailure." Curiously the MediaPlayer documentation doesn't reference this error at all. Anyone familiar with this error and could shed some light on its cause?

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• Renaming or copying files and folder using NERDTree on Vim. Is it possible?

  - by janoChen

  I checked the documentation and I couldn't find a way o renaming or copying files and folder using NERDTree. Is it possible?

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• First Fluent NHibernate Project

  - by Andy

  I'm trying to follow the "Your first project" tutorial at http://wiki.fluentnhibernate.org/Getting_started and have hit a roadblock. When I try to run the console application, I'm getting this error: An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail. I have created a SQLite database "firstProject.db" and referenced the full path to the file in the call to: return Fluently.Configure() .Database(SQLiteConfiguration.Standard .UsingFile(DbFile)) .Mappings(m => m.FluentMappings.AddFromAssemblyOf<Program>()) .ExposeConfiguration(BuildSchema) .BuildSessionFactory(); so I don't know what I'm doing wrong. What/where is this "PotentialReasons" collection? Thank you for the help. Andy

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• getting started with libmms

  - by Vnuce

  Actually, the title explains it all... I want to read a stream, but have no idea from where to start. I've searched the web for some documentation/tutorial/whatever with no luck. Any help using this lib would be very appreciated.

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• Syncronizing mobile phone contacts with contacts from social networks

  - by Pentium10

  I retrieve a JSON list of contacts from a social network site. It contains firstname, lastname, displayname, data1, data2, etc... What is the efficient way to quickly lookup my local phone contacts database and "match" them based on their name. Since there are firstname, lastname and displayname this can vary. What do you think, how can the best match be achieved? Also how do I make sure I don't parse for each JSON item the whole database I want to avoide having JSON_COUNT x MOBILE COUNT steps.

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• Serializing ActiveRecord objects without storing their attributes?

  - by Allan Grant

  I'm working on a problem where I need to store serialized hierarchies of Ruby objects in the database. Many of the objects that will need to be saved are ActiveRecord objects with a lot of attributes. Instead of saving the entire objects and then refreshing their attributes from the DB when I load them (in case they changed, which is likely), it would be easier to just store the references (class and database id) for these objects. Does anyone know if there's already a way to do this in Rails, or if there's an existing gem for it? Wanted to check if something existed before spending a ton of time hacking on it.

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• How to access GDI+ Effect Classes in C#

  - by Badeoel

  Hello everybody, I try to find out, how to access the Effect-Class and it's decendants of GDI+ in C#. Especially, I'm interested in these: * Blur * Sharpen * Tint * RedEyeCorrection * ColorMatrixEffect * ColorLUT * BrightnessContrast * HueSaturationLightness * ColorBalance * Levels * ColorCurve Can anybody give me a hint, how to access them in C#? I even can't find them in the .net documentation. Do I have to access the gdilus.dll directory? Ciao! Christian

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• Procmon Configuration .pmc Format

  - by John Williams

  The Sysinternals Procmon tool allows to import and export configuration using .pmc files. These files are binary. I'm looking for any documentation/code for processing of the format.

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• JBoss Service with SSL and Protocol Buffers

  - by mlaverd

  Hello everyone, I'm interested in building a JBoss service. Because I'm reusing some existing code, the service must be able to talk SSL/TLS and Protocol Buffers. The documentation I see on the JBoss wiki makes it look like services have their transport and data interpretation handled by JBoss itself. Is it really the case? How could I implement this requirement? Regards, M-A

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• MySQL PHP incompatibility.

  - by Evernoob

  Ok maybe I've overlooked something really simple here, but I can't seem to figure this out. I'm running WAMP locally, but connecting to a remote MySQL database. The local version of PHP is the latest 5.3.0. One of the remote databases, being version 5.0.45 works fine. However, the other remote database I'm trying to connect to, which is version 5.0.22 throws the following error before dying: Warning: mysql_connect() [function.mysql-connect]: OK packet 6 bytes shorter than expected. PID=5880 in ... Warning: mysql_connect() [function.mysql-connect]: mysqlnd cannot connect to MySQL 4.1+ using old authentication in ... WTF? UPDATE: Reverting to PHP 5.2.* i.e. anything lower than 5.3.0 resolves the problem completely. As long as I am not running 5.3.0 I can connect to both databases. I'm not sure what the explanation is for this weirdness.

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• NHibernate 'IdentifierGenerationException' on an Update trigger

  - by Jan Jongboom

  In my database I have an id column defined as [autonumber] [int] IDENTITY(1,1) NOT NULL which is mapped in my .hbm.xml like: <id name="Id" column="autonumber" type="int"> <generator class="identity" /> </id> When calling session.Save() updates are successful committed to the database. When adding a versioning trigger I however get the error this id generator generates Int64, Int32, Int16 of type IdentifierGenerationException. The trigger is defined as: ALTER TRIGGER [dbo].[CatchUpdates_NVM_FDK_Kenmerken] ON [dbo].[NVM_FDK_Kenmerken] INSTEAD OF UPDATE AS BEGIN SET NOCOUNT ON UPDATE NVM_FDK_Kenmerken SET idIsActive = 0 WHERE internalId IN (SELECT internalId FROM INSERTED) INSERT INTO dbo.NVM_FDK_Kenmerken ( vestigingNummer , internalId , someOtherColumns, dateInserted, idIsActive ) SELECT vestigingNummer, internalId, someOtherColumns, GETDATE(), 1 FROM INSERTED END What am I doing wrong here? When doing manual updates everything works just fine and as expected.

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• WPF DataGrid Entity Framework: Is it possible to bind a datagrid column to a method/function?

  - by seddler

  Hi. I'm wondering if it's possible to bind a gridcolumn (field) to a method or function of an entity? For example I have two entities Person and Company that both inherit the abstract entity Addressee. In my grid I'm listing all Addressees (both persons and companies). I have a column, Name, in the datagrid that I whish to bind to a function GetName(). This function is part of the entity Addressee and based on what type of addressee it is it returns CompanyName (if company) or FirstName+' '+LastName (if person). I also have tried to add a partial class Addressee with a property Name that does the same thing as the function descried over, but this failes when I'm saving to database because the column Name does not exist in database. Can anybody please help me? :-)

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• Run a SQL Script Against MySQL using Powershell

  - by abarr

  I have a Powershell script that backs up my MySQL DB's each night using mysqldump. This all works fine but I would like to extend the script to update a reporting db (db1) from the backup of the prod db (db2). I have written the following test script but it does not work. I have a feeling the problem is the reading of the sql file to the CommandText but I am not sure how to debug. [system.reflection.assembly]::LoadWithPartialName("MySql.Data") $mysql_server = "localhost" $mysql_user = "root" $mysql_password = "password" write-host "Create coonection to db1" # Connect to MySQL database 'db1' $cn = New-Object -TypeName MySql.Data.MySqlClient.MySqlConnection $cn.ConnectionString = "SERVER=$mysql_server;DATABASE=db1;UID=$mysql_user;PWD=$mysql_password" $cn.Open() write-host "Running backup script against db1" # Run Update Script MySQL $cm = New-Object -TypeName MySql.Data.MySqlClient.MySqlCommand $sql = Get-Content C:\db2.sql $cm.Connection = $cn $cm.CommandText = $sql $cm.ExecuteReader() write-host "Closing Connection" $cn.Close() Any assistance would be appreciated. Thanks.

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• How to discover architectures\techologies used by a non open source software

  - by systempuntoout

  Sometimes i would like to know how a cool software is made or the brilliant architecture behind an hot web service; but the software is not open-source and the web service have no public documentation. Do you have any techniques to discover some hints on how a software is made? Is it possible to do it? Do you know some site that publish architectures\technologies used by softwares\web service?

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• How does one start off programming in a new language/platform/technology?

  - by Vaishak Suresh

  How do you start programming in a new language or technology? Do you take time to unlearn some of the specific things you've learnt, read up documentation and then dive into coding or do you start off coding and then pick up specifics as you go?

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• SQL Server 2008 log size management problems

  - by b0x0rz

  I'm trying to shrink the log of a database AND set the recovery to simple, but always there is an error, whatever i try. USE 4_o5; GO ALTER DATABASE 4_o5 SET RECOVERY SIMPLE; GO DBCC SHRINKFILE (4_o5_log, 10); GO the output of sp_helpfile says that log file is located under (hosted solution): I:\dataroot\4_o5_log.LDF please help me perform this operation as the log file got large when importing a lot of data and now this info is no longer needed, have multiple (lots of) backups since then. the exact error message when performing the query above is: incorrect syntax near '4'. RECOVERY is not a recognized SET option. incorrect syntax near _5_log'. i am using visual studio 2010 (also have SQL Server Express installed locally, SQL Server 2008 proper installed at provider (shared)) thnx a lot

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• Easy Facebook VB.NET library needed

  - by TuxMeister

  Hey guys and gals, Any one knows of an easy to use/well documented Facebook library for VB.NET? I have searched the Interwebs for it for a long time and even the official one has a very poor documentation for beginners. It looks like you have to be a Facebook developer to work with them. Any help is much appreciated. Thanks!

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• Storing DateTime (UTC) vs. storing DateTimeOffset

  - by Frederico

  I usually have an "interceptor" that right before reading/writing from/to the database does datetime conversion (from UTC to localtime, and from localtime to utc), so I can use DateTime.Now (derivations and comparisions) throughout the system without worrying about timezones. Regarding serialization and moving data between computers, there is no need to bother, as the datetime is always UTC. Should I continue storing my dates (SQL 2008 - datetime) in UTC format or should I instead store it using DateTimeOffset (SQL 2008 - datetimeoffset)? UTC Dates in the database (datetime type) have been working and known for so long, why change it? What are the advantages? I have already looked into articles like this one, but I'm not 100% convinced though. Any thoughts?

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• how to mysqldump remote db from local machine

  - by Mauritz Hansen

  Hi folks, I need to do a mysqldump of a database on a remote server, but the server does not have mysqldump installed. I would like to use the mysqldump on my machine to connect to the remote database and do the dump on my machine. I have tried to create an ssh tunnel and then do the dump, but this does not seem to work. I tried: ssh -f -L3310:remote.server:3306 [email protected] -N The tunnel is created with success. If I do telnet localhost 3310 I get some blurb which shows the correct server mysql version. However, doing the following seems to try to connect locally mysqldump -P 3310 -h localhost -u mysql_user -p database_name table_name Can someone assist me? Thanks, Mauritz

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• MSBuild 4.0 Regex parsing

  - by Chandam

  I have heard that MSBuild 4.0 has increased Regex parsing support. However, I am unable to find any detailed documentation/links/material on this. Can anyone give a brief description of the new features and/or possibly give pointers to more material? Thanks in advance.

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• Posting data using AJAX

  - by ognjenb

  public ActionResult Create() { return View(); } // // POST: /Partial/Create [HttpPost] public ActionResult Create(last_name ln) { try { // TODO: Add insert logic here proba.AddTolast_name(ln); proba.SaveChanges(); return View(); } catch { return View(); } } Part of index View: <div id="Div1"> <% using (Ajax.BeginForm("Create", new AjaxOptions { UpdateTargetId = "Div1" })) { %> <%= Html.Action("Create")%> <% } %> </div> In this solutions data from from View Create not post to database. In this solutions data posted to database <div id="Div1"> <%= Html.Action("Create")%> </div> View "Create" is strongly typed view. Why is this happening ie why the first solution does not work?

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• Styling buttons of Flex TabNavigator

  - by donpal

  I created a TabNavigator with a bunch of NavigatorContent inside it, and want to skin just the buttons of the tabs themselves. So I added a skinClass, but looks like in the documentation, there's no skin part to target the button specifically. Do I have to style the mx:TabNavigator itself to accomplish this? I was hoping not since I don't know how to style mx components and am more comfortable with styling spark. Any other alternatives that I didn't think about?

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• How do I connect from an XPCOM object to a GStreamer plugin in a Songbird addon?

  - by utnapistim

  Hi all, I am writing a Songbird addon, with three parts: XUL (javascript), a GStreamer filter and an XPCOM addon. I am interested in accessing the GStreamer layer from my XPCOM component. If anyone knows any resources on how to do that I'd be grateful. Specifically, I need documentation or examples on accessing the GStreamer functionality from within my addon (building a GST pipeline and running a file through it, from my XPCOM component (C++). Thanks :)

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• What resources to look to in order to write an emulator for iPhoneOS?

  - by Roman Kagan

  What are available resources I should look to in order to write an emulator for iPhoneOS? I'd like to write an emulator to run applications written for MacOS. I understand that I won't be able to use file system and other OS resources. I do have an SDK, XCode and all documentation for those resources, but I wonder if I can find some examples (perhaps similar to the emulator that can run Ninetendo games on iPhone)?

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