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  • What language is .NET Framework written in?

    - by chester89
    The question I always wanted to ask and was afraid to, actually - what language is .NET Framework written in? I mean library itself. It seems to me that it was C and C++ mostly. (I hope Jon Skeet is reading this one, it`ll be very interesting to hear what he thinks about it)

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  • Bitmap.Save problems

    - by user284026
    Hello, can anyone tell me if you know to be a problem with Bitmap and steganography for WM 6? I am working on a project and i have to hide a digital signature in a bitmap. The algorithm works perfect, as in untill i have the image on the memory the bitmap contains the modified bytes. But after i save the image (Bitmap.Save()) and I reopen the image, than those bytes are lost. When i say lost i mean they are the orriginal bytes from when the picture was taken. Thank you.

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  • Windows Mobile 6.5 GPS Device - WaitForMultipleObjects returns 258 (timeout)

    - by wizmagister
    I’ve created a GPS program that track positions in realtime in the background for Windows mobile 6.1 in 2008-2009. It ran fine on these devices for many years. For some reason, the same code never worked perfectly on Windows Mobile 6.5. After many hour of operations (mostly when nobody use the device), I receive a “Timeout” (code 258) from the function "WaitForMultipleObjects": this.GPSEvent_WaitValue = WaitForMultipleObjects(2, this.GPSEvent_Handles, 0, 45000); Again, this can work for hours and suddenly, it's just impossible to get another position without : UPDATE: - Restarting the device (GoogleMap confirms that there's no GPS device present!) It has something to do with Windows Mobile going to sleep and slowing up my thread. Here's the core code (adapted from Microsoft SDK Sample): /// <summary> /// When "WindowsMobile" wake up the program to check for a new position /// </summary> private void OnNextGPSEvent_Callback() { int SecondsToNextWakeUp = ETL.Mobile.Device.ScheduledCallback.MINIMUM_SECONDTONEXTWAKEUP; switch (this.SleepingState) { case SleepingStateType.SleepingForNextPosition: // Get position this.GPSEvent_WaitValue = (WaitForEventThreadResultType)WaitForMultipleObjects(2, this.GPSEvent_Handles, 0, 45000); switch (this.GPSEvent_WaitValue) { case WaitForEventThreadResultType.Event_LocationChanged: // Got a new position this.FireLocationChanged(this.GetCurrentPosition()); // Manage device shutdown (save battery) if (this.PositionFrequency > MIN_SECONDS_FREQUENCY_FORDEVICE_SHUTDOWN) { // Close device this.CloseDevice(); SecondsToNextWakeUp = (this.PositionFrequency - GPSDEVICE_LOAD_SECONDS_LOAD_TIME); this.SleepingState = SleepingStateType.SleepingBeforeDeviceWakeUp; } else { // Default Wait Time this.SleepingState = SleepingStateType.SleepingForNextPosition; } break; case WaitForEventThreadResultType.Event_StateChanged: break; case WaitForEventThreadResultType.Timeout: case WaitForEventThreadResultType.Failed: case WaitForEventThreadResultType.Stop: // >>>>>>>>>>>>>> This is where the error happens <<<<<<<<<<<<<<<<<<<<<<<<<<< // >>>>>>>>>>>>>> This is where the error happens <<<<<<<<<<<<<<<<<<<<<<<<<<< // >>>>>>>>>>>>>> This is where the error happens <<<<<<<<<<<<<<<<<<<<<<<<<<< // Too many errors this.ConsecutiveErrorReadingDevice++; if (this.ConsecutiveErrorReadingDevice > MAX_ERRORREADINGDEVICE) { this.CloseDevice(); SecondsToNextWakeUp = (this.PositionFrequency - GPSDEVICE_LOAD_SECONDS_LOAD_TIME); this.SleepingState = SleepingStateType.SleepingBeforeDeviceWakeUp; } else { // Default Wait Time this.SleepingState = SleepingStateType.SleepingForNextPosition; } break; } #endregion break; case SleepingStateType.SleepingBeforeDeviceWakeUp: this.OpenDevice(); SecondsToNextWakeUp = GPSDEVICE_LOAD_SECONDS_LOAD_TIME; this.SleepingState = SleepingStateType.SleepingForNextPosition; break; } if (this.IsListeningGPSEvent) { // Ajustement du prochain rappel this.NextGPSEvent_Callback.SecondToNextWakeUp = SecondsToNextWakeUp; this.NextGPSEvent_Callback.RequestWakeUpCallback(); } } /// <summary> ///Create Thread /// </summary> private void StartListeningThreadForGPSEvent() { // We only want to create the thread if we don't have one created already and we have opened the gps device if (this._GPSEventThread == null) { // Create and start thread to listen for GPS events this._GPSEventThread = new System.Threading.Thread(new System.Threading.ThreadStart(this.ListeningThreadForGPSEvent)); this._GPSEventThread.Start(); } } private void ListeningThreadForGPSEvent() { this.GPSEvent_WaitValue = WaitForEventThreadResultType.Stop; this.IsListeningGPSEvent = true; // Allocate handles worth of memory to pass to WaitForMultipleObjects this.GPSEvent_Handles = Helpers.LocalAlloc(12); Marshal.WriteInt32(this.GPSEvent_Handles, 0, this._StopHandle.ToInt32()); Marshal.WriteInt32(this.GPSEvent_Handles, 4, this._NewLocationHandle.ToInt32()); Marshal.WriteInt32(this.GPSEvent_Handles, 8, this._GPSDeviceStateChanged.ToInt32()); this.Start_NextGPSEvent_Timer(this.PositionFrequency); this.SleepingState = SleepingStateType.SleepingBeforeDeviceWakeUp; this.OnNextGPSEvent_Callback(); }

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  • Updating gridview using ado.net entity framework

    - by Ravi
    Hello everyone, I am trying to figure out the best way of getting the record and update in to gridview using ado.net entity framework in C#. I need implement Next & Previous button in gridview and based on pagesize i want to navigate records using Next&Back button. Any one give simple example for this context.

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  • Nonblocking io webserver/framework for java

    - by SeekingNonblockingIo
    Does anyone know of any node.js style webserver framework for java? I realized that having nonblocking callback behavior while handling a web request will require deep support at the webserver level. I am interested in node.js, but when I have a web server that ends up persisting data, I would like to take advantage of the static type system that Java offers. However, I want the scalability of non-blocking io.

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  • Can anyone tell me were I am making mistake in the snippet

    - by Solitaire
    public partial class Form1 : Form { [DllImport("coredll.dll")] static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong); const int GWL_WNDPROC = -4; public delegate int WindProc(IntPtr hWnd, uint msg, long Wparam, long lparam); public Form1() { InitializeComponent(); WindProc SampleProc = new WindProc (SubclassWndProc); SetWindowLong(this .Handle , GWL_WNDPROC, SampleProc.Method .MethodHandle.Value.ToInt32()); } public int SubclassWndProc(IntPtr hwnd, uint msg, long Wparam, long lparam) { return 1; } Here is the sample which i was trying to take the window procedure of a form, this is how i do in C++ i get the windwproc easlily if i try the same in C# .net 3.5 i am unable to get the window proc,, after calling SetWindowLong API application hangs and it pops up some dont send report... i have read this is the way to get the window proc.. please let me know were i am making mistake...

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  • Argotic Syndication framework

    - by nav
    Is it me or is the documentation for the argotic framework API impossible to find..? The source is available so surely the documented API should be .. Anybody know where this is? Thanks alot,

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  • Django @ Google App Engine - Site Map Framework

    - by dkp
    Hi Folks, has anybody managed to get Djangos site map framework to run on Google App Engine? I receive the following exception: ImproperlyConfigured at /sitemap.xml You haven't set the DATABASE_ENGINE setting yet. Request Method: GET Request URL: http://127.0.0.1:8080/sitemap.xml Exception Type: ImproperlyConfigured Exception Value: You haven't set the DATABASE_ENGINE setting yet. Exception Location: D:\Program Files\Google\google_appengine\lib\django\django\db\backends\dummy\base.py in complain, line 13

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  • ETA on Smart Device Projects for Visual Studio 2010

    - by Vaccano
    I really want to upgrade to Visual Studio 2010. But since I do a lot of development for the Pocket PC version of Windows Mobile I cannot. (I develop for a Symbol device that does not support Windows Phone 7, so that is not a option.) Does any one know any kind of time frame of when Microsoft plans to add support for Smart Device Projects into Visual Studio 2010

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  • Google search is not working in web browser control

    - by Sundar
    Hello, I have developed a browser using the standard WebBrowser control in my application that is built against CF 3.5. Google search is not working in the browser. That is when i navigate to www.google.co.in and type a keyword and click on the serach button nothing is happening. Outside the application from the device if i try the same thing in IE am getting a security warning dialog box and if ok is clicked search results are shown. So in my case do i need to set property on the webbrowser control. Thanks in advance

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  • Framework Question

    - by Johhny
    I need a language and web framework that is really easy to use, that only has 12 or so commands, that is in one language all the way through (front/middle/back) and takes 15 minutes to master. Something like this: 10 CreateWEBFormAndCreateRequiredDBTablesAndSaveToDatabase("First Name", "Last Name") 20 CreateWEBPageThankingUser() 30 MakeAllWEBPagesPrettyByExaminingWebSitesOnTheInterWebAndMakingADecision() 40 GOTO 10 Oh, and it has to be written in C#

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  • Flickering Task Bar on Full Screen Windows Mobile 6 Apps

    - by CDM
    Just finishing off an update to an application written in VB.NET that used to run fine under CE.NET 4.2. Deployment platform is now Windows Mobile 6.1. The application runs in full screen, however whenever a new form is opened, the task bar, i.e. the bar with the start button comes to the fore and then the new form takes over. This is particularly annoying as I have a form that has many sub forms which are 128,128 and still the task bar flashes and obscures part of the user input screen. Has anyone comes across this? Any known workarounds?

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  • Not enough storage is available to complete this operation - Program or Storage memory?

    - by Grant Crofton
    I've been given a Windows Mobile app written in .Net CF 3.5 to fix, and one of the problems is to do with storage. The message 'Not enough storage is available to complete this operation' has appeared a few times - it's logged in the SQL CE database, and always happens during data access (but not the same bit of data access). The thing I'm slightly confused about is whether this refers to Program Memory (e.g. RAM) or Storage Memory (e..g permanent storage). It would appear to be storage memory, but the devices seem to have plenty free. While there are some OutOfMemoryExceptions, these appear totally unrelated to this problem (in that that happen at a different time due to an image-related issue). We're using SQL CE 3.5 with a single connection, which is stored along with the app on the device (as opposed to the storage card). The device is a Motorola MC75 running Windows Mobile 6.1. Any thoughts?

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  • Running out of memory when getting a bitmap from a server?

    - by ikky
    Hi! I'm making an application which uses MANY images. The application gets the images from a server, and downloads them one at a time. After many images the creation of a bitmap returns an exception, but i don't know how to solve this. Here is my function for downloading the images: public static Bitmap getImageFromWholeURL(String sURL) { HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(sURL); myRequest.Method = "GET"; // If it does not exist anything on the url, then return null try { HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse(); System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(myResponse.GetResponseStream()); myResponse.Close(); return bmp; } catch (Exception e) { return null; } } Can anyone help me out here? Thanks in advance!

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  • How to get the Displayed Webpage source

    - by Shadow
    Hi, how can i get the web-page source displayed on a web-browser control, either in c# or Win32.even ATL COM also fine. i mean.. i dont want to create new "HTTPReqest" or "openURL" to get source.. i want to get the source from the control only..is it possible for windows mobile.. if so how?.. please let me know. Thank u

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  • What is the fastest way to insert 100 000 records from one database to another?

    - by Pentium10
    I have a mobile application. My client has a large data set ~100.000 records. It's updated frequently. When we sync we need to copy from one database to another. I have attached the second database to the main, and run an insert into table select * from sync.table. This is extremely slow, it takes about 10 minutes I think. I noticed that the journal file gets increased step by step. How can I speed this up? EDITED 1 I have indexes off, and I have journal off. Using insert into table select * from sync.table it still takes 10 minutes. EDITED 2 If I run a query like select id,invitem,invid,cost from inventory where itemtype = 1 order by invitem limit 50 it takes 15-20 seconds. The table schema is: CREATE TABLE inventory ('id' INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, 'serverid' INTEGER NOT NULL DEFAULT 0, 'itemtype' INTEGER NOT NULL DEFAULT 0, 'invitem' VARCHAR, 'instock' FLOAT NOT NULL DEFAULT 0, 'cost' FLOAT NOT NULL DEFAULT 0, 'invid' VARCHAR, 'categoryid' INTEGER DEFAULT 0, 'pdacategoryid' INTEGER DEFAULT 0, 'notes' VARCHAR, 'threshold' INTEGER NOT NULL DEFAULT 0, 'ordered' INTEGER NOT NULL DEFAULT 0, 'supplier' VARCHAR, 'markup' FLOAT NOT NULL DEFAULT 0, 'taxfree' INTEGER NOT NULL DEFAULT 0, 'dirty' INTEGER NOT NULL DEFAULT 1, 'username' VARCHAR, 'version' INTEGER NOT NULL DEFAULT 15 ) Indexes are created like CREATE INDEX idx_inventory_categoryid ON inventory (pdacategoryid); CREATE INDEX idx_inventory_invitem ON inventory (invitem); CREATE INDEX idx_inventory_itemtype ON inventory (itemtype); I am wondering, the insert into ... select * from isn't the fastest built-in way to do massive data copy? EDITED 3 SQLite is serverless, so please stop voting a particular answer, because that is not the answer I'm sure.

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