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image data type, sql server ce 2.0 khchan7-Jun-04 16:07 khchan 7-Jun-04 16:07  as i know, we may use image data type to deal with blob. but the problem is, how can i insert the bytes to the database?? i have tried the follow code segment, but it doesn't work SqlCeCommand addPic = conn.CreateCommand(); addPic.CommandText = "INSERT INTO photoTable (Photo) VALUES(@Photo)"; SqlCeParameter picParam = addPic.Parameters.Add("@Photo", SqlDbType.Image); picParam.Value = GetPhoto(photoFilePath); public static byte[] GetPhoto(string filePath) { FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read); BinaryReader br = new BinaryReader(fs); byte[] photo = br.ReadBytes((int)fs.Length); br.Close(); fs.Close(); return photo; } thanks Instrumentation widgets / gadgets for CE .Net 4.2 David Fulmer7-Jun-04 5:13 David Fulmer 7-Jun-04 5:13  Does anyone know of a company that makes instrumentation widgets / gadgets for the CE .Net 4.2 platform? I'm looking for controls (LED indicators, bar graphs, analog gauges, etc.) that I can have run in an operator interface (LCD panel) used on a manufacturing plant floor. The application in the operator interface is being developed in embedded Visual C++. Thanks for any help! Re: Instrumentation widgets / gadgets for CE .Net 4.2 Edw21-Jun-04 10:03 Edw 21-Jun-04 10:03  I've used Mooseworks products. They work fairly well. http://www.mooseworkssoftware.com/products.htm[^] How to make a setup that can install appropriate files on Pocket PC 2002 or 2003 Bui Huy Kien4-Jun-04 19:17 Bui Huy Kien 4-Jun-04 19:17  Dear all, I had developed a software that use Pocket Access database but the database file for Pocket PC 2002 does not work with Pocket PC 2003 and vice versa. My question is how to make a setup program that can detect which version of the OS on Pocket PC and install an appropriate database file on it? Thank you very much in advance. -Kien Bui launch application in application and close it ppp0013-Jun-04 21:34 ppp001 3-Jun-04 21:34  Hi all, In C#.NET(compact framework), how to launch an slave application from a master application, then the master applicaton can close the slave master if the slave application is not needed anymore ? And how to pass information between the two applications? Thanks C# performance ppp0013-Jun-04 7:34 ppp001 3-Jun-04 7:34  Hi all, Is C# a good tool for programming application in pocket pc device ? Will the performance in execution speed be a problem ? Also, can a application built by C#.net be run on Pocket PC 2000 and Pocket PC 2002 platform (any additional .net runtime needed to install on the device before the installation of the application) ? Re: C# performance João Paulo Figueira3-Jun-04 11:41 João Paulo Figueira 3-Jun-04 11:41  pyhtang1 wrote: Is C# a good tool for programming application in pocket pc device ? What kind of application are you thinking about? pyhtang1 wrote: Will the performance in execution speed be a problem ? Depends on what you are ready to trade off for speed. C# applications will always run slower than C++ ones. pyhtang1 wrote: Also, can a application built by C#.net be run on Pocket PC 2000 and Pocket PC 2002 platform (any additional .net runtime needed to install on the device before the installation of the application) ? You can install the .Net Compact Framework on older machines, for sure. I know it is possible on 2002 machines, but not so sure for 2000. Regards, João Paulo Figueira Embedded MVP C4925: INTERNAL COMPILER WARNING GDavy2-Jun-04 21:43 GDavy 2-Jun-04 21:43  Ok I got this warning after building my project: warning C4925: INTERNAL COMPILER WARNING - Tree node(s) not freed Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information When I look at MSDN the warning C4925 says: Compiler Warning (level 3) C4925 'function': non-virtual member function marked as 'final'; ignored the qualifier 'final' The final keyword was found on a non-virtual member function. The final keyword is only allowed on virtual member functions within a class. The following generates C4925: class B { public: final void f1(); // C4925 }; void main() {} But I aint got at any point the keywork `final`in my program... Does anyone have any experience with this warning??? The program seems to run correctly though, but who knows what kind of strange behaviour might occur due to this warning.... Thanks for any help... Davy embedded visual c++ jetimms2-Jun-04 7:22 jetimms 2-Jun-04 7:22  I'm trying to create my first project, but I can't select all of the CPUs in the drop down list. Why do some of them grey out and some don't? Thanks Re: embedded visual c++ João Paulo Figueira2-Jun-04 10:35 João Paulo Figueira 2-Jun-04 10:35  It depends on the SDK support for the CPUs. For instance, Pocket PC SDKs will only support ARM and emulator. Regards, João Paulo Figueira Embedded MVP biometric yep yin31-May-04 21:01 yep yin 31-May-04 21:01  hello everyone. I am in deep sh*t now. i have to develop a biometric authentication system which apply neural network algorithm , that is using handwritten signatures to authenticate users instead of combination of user id and passwords. I do not even know which language to use, some told me MATLAB, some said VB. so can anyone give guidance or sample source code to me so that i do not need to start from scratch since the time is running out. thanks a lot and please help pass this message around so that i can have more things to refer Re: biometric cmk3-Jun-04 15:44 cmk 3-Jun-04 15:44  It sounds like : 1. You have chosen the biometric - signatures. 2. That you are going to train a NN to recognize signatures. Given this, it sounds like you just need to search for open source NN code. Likely be able to google for sample code in any language you want. Some of the questions that come to my mind are : - What is the authentication for ? Logging in, proving that a particular person signed a document, ... . In either case PKI is likely much more appropriate. - Do you have to use a signature as the metric, can you use fingerprints or retinal scans ? - Do you have to use a NN for matching ? ...cmk Save the whales - collect the whole set Re: biometric yep yin3-Jun-04 18:32 yep yin 3-Jun-04 18:32  thanks to u cmk, yes, u r rite, i have to search open source code for NN n train NN matching. Too bad i can't find any source code available online. That makes me so frustrated. so it will be great if you can provide me the related source codes or useful link. Its a program for logging in. Anyhow, i just intend to build a program that can store handwritten signatures and compare with input data later, n thats it. thanks folks. Re: biometric cmk3-Jun-04 23:17 cmk 3-Jun-04 23:17  There's stuff out there, try : http://www.codeproject.com/cpp/gestureapp.asp[^] ...cmk Save the whales - collect the whole set Re: biometric yep yin7-Jun-04 19:42 yep yin 7-Jun-04 19:42  wei thank u very much cmk, i owe u once. That link u gave me indeed helped me on the problem. thanks again n hope u have a nice day. mind giving me email address? i think we could be friends and discuss programming matters from time to time. IPv6 in compact framework dormi33331-May-04 2:57 dormi333 31-May-04 2:57  I'm a developer with the new protocol IPv6, and I've surprised when I see that the actually compact framework doesn't support this protocol. I think that It's a big error by microsoft because if Pocket PC 2003 support ipv&, compact framework also should support it. I'd like, if any way for create a socket connection with ipv6, in .NET? Thanks for all!! Any samples for OLEDB API's for accessing Windows CE SQL Server Anonymous31-May-04 0:49 Anonymous 31-May-04 0:49  Hi ALL, I need to access the Windows CE SQL server using OLEDB API's. Is there any OLEDB c++ warapper class for communicating to the Windows CE SQL server 2.x ? Suggestions are most welcome. Regards, AKS Re: Any samples for OLEDB API's for accessing Windows CE SQL Server João Paulo Figueira31-May-04 5:34 João Paulo Figueira 31-May-04 5:34  Read here: Using the ATL OLE DB Consumer Templates[^] or: Using the ATL OLE DB Consumer Templates on the Pocket PC[^] Regards, João Paulo Figueira Embedded MVP Re: Any samples for OLEDB API's for accessing Windows CE SQL Server AKSIVAKUMAR31-May-04 19:56 AKSIVAKUMAR 31-May-04 19:56  Hi, Thanks for your reply. Also, i have seen samples which is coming along with the SQL server 2.0 which does not uses OLE DB Consumer templates. Is there any other way to implement an interface without using ATL OLE DB Consumer Template like a simple C++ class for pocket pc 2003? Also, how to move record sets,execute sql queries and open tables using OLEDB API's? Slease explain in detail. Suggestions are most welcome. Regards, AKS Re: Any samples for OLEDB API's for accessing Windows CE SQL Server João Paulo Figueira1-Jun-04 0:49 João Paulo Figueira 1-Jun-04 0:49  AKSIVAKUMAR wrote: Is there any other way to implement an interface without using ATL OLE DB Consumer Template like a simple C++ class for pocket pc 2003? Check this article: Accessing MS SQL Server CE v1.0/v2.0 without the ADO object.[^] Regards, João Paulo Figueira Embedded MVP Re: Any samples for OLEDB API's for accessing Windows CE SQL Server AKSIVAKUMAR3-Jun-04 0:16 AKSIVAKUMAR 3-Jun-04 0:16  Hi, I went through the code. In ADOCE, the following interface is available. pIADOCERecordset->MoveFirst(); pIADOCERecordset->MovePrevious(); pIADOCERecordset->MoveLast(); I am not able to understand how to move the recordset in OLEDB. Please explain how to move recordset Last,Previous,First and Next like in ADOCE using OLEDB API's. Is the same interface available in OLEDB? Please suggest me. Regards, AKS Re: Any samples for OLEDB API's for accessing Windows CE SQL Server João Paulo Figueira3-Jun-04 1:38 João Paulo Figueira 3-Jun-04 1:38  These methods are available from the IRowset::GetNextRows method. Its use is not necessarily direct, that's why I use the Consumer Templates. Regards, João Paulo Figueira Embedded MVP Re: Any samples for OLEDB API's for accessing Windows CE SQL Server AKSIVAKUMAR3-Jun-04 21:19 AKSIVAKUMAR 3-Jun-04 21:19  hi, Basically, I am new to SQL Server CE, can you please do let me know what are all the steps I need to follow when I want to open a SQL statement or TABLE with some sort of constraints like cursortype and lock type. pleas do let me know what are all the steps I have to follow to solve this problem. suggestions are most welcome. regards, AKS Re: Any samples for OLEDB API's for accessing Windows CE SQL Server João Paulo Figueira3-Jun-04 22:36 João Paulo Figueira 3-Jun-04 22:36  I don't have much experience in using raw OLE DB, only through the consumer templates. These can be used with MFC, WTL or with straight API. Please check my article for the info you want (start of thread). Regards, João Paulo Figueira Embedded MVP Re: Any samples for OLEDB API's for accessing Windows CE SQL Server AKSIVAKUMAR3-Jun-04 22:56 AKSIVAKUMAR 3-Jun-04 22:56  Hi, To pass cursor type and lock type , which interface I supposed to use and how in OLEDB. I am not able to find proper document for this problem. please do let me know if you have any idea in this regards. -AKS

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