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I am a MSMQ novice, start reading about it a couple of weeks back and got a little confused on what is the best way of using it in my scenario, looking for suggestions.
I have a server application that send/recieve messages from/to different client applications. Each client has a certain type. During the provisioning phase server gets the knowledge of what type of message will be routed to what type of clients. For example message type A coming from client of type B will need to be routed to clients of type C whereas type D message will have to be routed to clients of type E. Currently this messaging is done via a common database but for the next Gen solution we are considering to take advantage of Microsoft messaging APIs. Here is what I have in mind and related questions.
The server application will have two queues, one for incoming messages and other for outgoing message. Clients can just send their messages on the incoming queue. Server processes the message coming in incoming queue and publishes them on the outgoing queue. The clients will keep polling for the outgoing queue on the server looking for any messages of their interest (polling is probably not a very good idea though). If they find a message appropriate for them, they will process it and do whatever needed. In this scenario seems to me that we will not have to have MSMQ component installed on the client machines (which might be useful for some of my needs). Client apps can access the queues and send/receive messages via System.Messaging API. In some cases these client app will be running on laptops that may not have connectivity all the time. So for these scenarios seems to me that may be I should consider MSMQ independent client that does require to have MSMQ installed on the client machine. But I am little confused how does this mode works. Will client applications be sending/receiving message to the local queue? If this is the case then how does the transfer of messages between local queue and queue on the server works? Will I have to write another application to do this?
Thanks in advance for you guys help.
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I am trying pass a .NET function pointer to a COM component so the COM component can call the function as a callback method. I am using the Marshal.GetFunctionPointerForDelegate method to get the pointer but am having trouble declaring the COM method in my IDL file. Here is my C# code:
<code>
// Create delegate
RcvDataDelegate pd = new RcvDataDelegate(RcvData);
// Get function pointer that can be passed to COM component
IntPtr fpCallback = Marshal.GetFunctionPointerForDelegate(pd);
// Register function with DataManager COM component for callback
m_DataManager.RegisterSendDataDelegate(fpCallback);
</code>
IDL:
<code>
[id(7), helpstring("method Send Data Callback")] HRESULT RegisterSendDataDelegate(
[in] IUnknown* pSendDataDelegate);
</code>
The documentation says to declare the function pointer as void * but the MIDL compiler doesn't accept that.
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Hi.
I need to do the following:
Attach to aspnet process immidiately after it is created (and before it does anything), and inject a DLL into the process.
The DLL uses hooks for memory allocations, and so - HAS to be activated before aspnet allocates any memory.
Does anyone have an idea how this can be done?
injecting the DLL is no problem, but i need to do that exactly after the process has been created.
Thanks.
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Can any one here please help me to know how to write Plugins for Internet Explorer using .NET.
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and to download a file from a remote web server to a specific directory in a local windows directory? I know it is possible to use the System.FileInfo and System.DirectoryInfo classes, but these classes do not work with "http://".
Could it be done by integrating a simple web .html page with an onLoad event, and if so, how could the web page be opened in HIDDEN mode?
I would really appreciate some insight into this issue.
 ! ! ! !
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I am new to programming of all sorts. I need a little help in finding a problem in my code. I am trying to retrieve some NEMA(text stream) data from a server by creating a socket then sending a query. The console application works but I am not receiving all of the data string from the server. I have used some other “Canned” applications that basically do the same thing and they display the entire string after I send the query. I will enclose my code. Please keep in mind that my knowledge is very, very little. Any suggestions would greatly be appreciated.
____________________________________________________________________________
Imports System.Text
Imports System.IO
Module Module1
Sub Main()
Dim bytes(8095) As Byte
Dim ipHostInfo As IPHostEntry = Dns.Resolve("www.XXXXXXX.com")
Dim ipAddress As IPAddress = ipHostInfo.AddressList(0)
Dim remoteEP As New IPEndPoint(ipAddress, XXXX)
' Create a TCP/IP socket.
Dim sender As New Socket(AddressFamily.InterNetwork, _
SocketType.Stream, ProtocolType.Tcp)
' Connect the socket to the remote endpoint. Catch any errors.
' Try
sender.Connect(remoteEP)
Console.WriteLine("Socket connected to {0}", sender.RemoteEndPoint.ToString())
' Encode the data string into a byte array.
Dim msg As Byte() = Encoding.ASCII.GetBytes("XXX vehicle ghist:X.XXX.X.XXX,000000,11/01/2004,000000,12/10/2004,eof" & vbCrLf)
' Send the data through the socket.
Dim bytesSent As String = sender.Send(msg)
' Receive the response from the remote device.
Dim bytesRec As Integer = sender.Receive(bytes)
Console.WriteLine(Encoding.ASCII.GetString(bytes, 0, bytesRec))
sender.Shutdown(SocketShutdown.Both)
sender.Close()
Console.Read()
End Sub
End Module
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Hi,
I am currently working with VS .NET 2003 Enterprise.
I got the new CD's from Microsoft containing VS 2005 BETA a couple of months ago and would like to start using them (I develop using ADO .NET,C# .NET,VC++,MFC,VB .NET ,pocket pc, and ASP .NET so these are the ones I'm most interested in my questions).
I have a few questions regarding the VS 2005 beta:
1.Is it possible to install it on the same PC with VS .NET 2003 or should I uninstall VS .NET 2003 first?
2.Can I open and compile all C#,VB,C++ MFC projects that where created and used with VS .NET 2003 on the VS 2005 BETA with no problems?
3.Why is it called VS 2005 and not VS .NET 2005?
4.when is the VS 2005 release version expected?
5.What are the general improvements to VS 2005 BETA compare to VS .NET 2003?
6.What is the download from the Microsoft MSDN Subscriber Downloads site for the VS 2005 BETA, which is equivalent to VS .NET 2003 Enterprise developer?
Thanks in advance for the response.
Aviv.
avivhal
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Hey Aviv..
I think i can help yo with some of your questions.
1. I Succesfully installed the 2005 C++ demo, alon with Visual Studio 2003 .NET pro
2. I have succesfully opend some projects from this site in 2005 VB edition, they have created some kind of project converter. BUT when the project is converted, you wont be able to open it in the older versions of .NET
4. They are expecting to release it in the first half calender year of 2005.
hope you find this useful 
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Thanks for the reply.
I dug a bit info from the msdn, and didn’t find any significant changes ( apart from when the new window OS version will be released...)
I think I'll wait for the release.
Thanks again.
Aviv.
avivhal
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Answers to some of the questions that are yet unanswered:
3. Because the .NET moniker has become a bit of an embarasment for Microsoft (101 different unrelated things got labeled as such-and-such.NET meaning nobody was really sure what ".NET" actually meant anymore)(
5. One big improvement is the introduction of version 2.0 of the .NET framework, which adds lots of extra stuff - have a look here[^] for lots of info
6. There's a download link for the beta in the link above
--
Help me! I'm turning into a grapefruit!
Phoenix Paint - back from DPaint's ashes!
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Hello Friends,
I want to learn .Net. I had good experience of VC++6.0 and want to migrate to .Net. So plesase suggest me the way to learn .Net and from where I can get good basic learning material on the net.
Thanks in advance.
Neelesh K J Jain.
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well, I've learnt basics of .NET from MSDN[^] and with help of my friends. Here (CP) you have potencially milion and half friends willing to help u and some tutorials... search articles.
Bt at first, try to figure out by yourself - too many questions are answered by simple googling or searching MSDN docs. Save us some time plz 
I can't recommend you other developer sites, cuz I don't usually visit them (codeguru, gotdotnet, csharpcorner etc.) Bt that says nothing about their quality - it is all about me
ah and I don't have to tell u that studying examples and experimenting with them is damn good way how to learn, do I?
hope I gave u some clues... and you can buy some books (again, I didn't do that  ).
best regards,
David 'DNH' Nohejl
Never forget: "Stay kul and happy" (I.A.)
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If you want to do C++.NET --
See this book. It's a good introduction for C++ programmers into what's up for C++.NET.
Though I'd recommend not going C++.NET and go for C# .NET.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<br />
Peter Weyzen<br />
Staff Engineer<br />
<A HREF="http://www.santacruznetworks.com">Santa Cruz Networks</A>
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well it may be good book, bt didn't you want to answer original post and not mine?
Peter Weyzen wrote:
Though I'd recommend not going C++.NET and go for C# .NET.
depends on what he wants to do, mainly for biz & database apps (what is probable) I agree.Bt as a former C++er he could want to use some legacy c++ code
btw I AM C# programmer
best regards,
David 'DNH' Nohejl
p.s. your sig reminds me that I *should* proudly link to something in my own sig Problem is there is nothing [bossmode]except company I work for[/bossmode] interesting to link to 
Never forget: "Stay kul and happy" (I.A.)
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I develop application on my PDA2K it support arabic but for some reason when importing arabic data from my PC into SQLCE I use in my app the fields appear empty for arabic data only
any onw know what is the problem ?
thanks
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Double.NaN!=Double.NaN, but, Double.PositiveInfinity==Double.PositiveInfinity - Why? -...and the documentation MSDN states that:
[...] It is not possible to determine whether a value is not a number by comparing it to another value equal to NaN. [...]
[...]
It is not possible to determine whether a value evaluates to positive infinity by comparing it to another value equal to PositiveInfinity. [...]
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This looks like a bug in the implementation:
Console.WriteLine(double.NaN == double.NaN);
Console.WriteLine(double.NaN.Equals(double.NaN));
"These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer
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Hi All,
Is it possible to create the layout of a typical crystal report template programatically without using the visual Crystal Report Designer in visual studio.NET?.
I want to change the display (By adding or removing objects like textbox etc) of the report at run time based on some conditions.
If possible, please provide me some links.
Thanks in advance,
Sujith Manuel.
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How to check whether any filter drivers are installed in the system using WMI or Registry?
Any other way to do it?
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CAN NOT DEPLOY/DEBUG a CF application in any language ON THE IPAQ EMULATOR after installing the FULL REMOTE DEBUGGING COMPONENTS.
the ipac emulator 2002 was working fine until then. I reloaded the entire system including the framework, vs .net and it still does not work.
does anybody have any idea where in the registry is the debugging information kept...
versions used:
Microsoft development environment version 7.1.3088
Microsoft .NET Framework 1.1 version 1.1.4322
Any help will be greatly appreciated….
thanks
sun.lcr
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Hi,
I'm trying to use No Touch Deployment for a WinForm Application.
My WinForm is interacting with a WebService that is placed on the same web server as the WinForm project.
I use a url to open the WinForm on the clients and everything works perfect.
The only problem is, that if the user isn't interactive in the WinForm for more than a few minutes there is a timeout exception thrown by the WinForm when trying to interact with the WebService.
The exact exception message is: "The operation has timed-out."
The exception is thrown from WebClientProtocol.GetWebResponse.
Can anybody help?
Itai.
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I didn't get any reply, but I got help from someone that asked the exact same question about a year ago in anoher forum. He also didn't receive any reply, but got help from microsoft.
So if anyone gets stuck on this in the future here is the fix:
I got this fix from the MSDN support people:
// This must be added by hand each time the web reference Reference.cs is recreated.
// This prevents a no-touch-deployed app from timing out on web service calls after a period
// of inactivity.
// To get to this module:
// - go into Solution Explorer
// - click the "show all files" icon in the Solution Explorer's toolbar
// - expand the web reference
// - expand Reference.map
// - view code for reference.cs
// - add this code to the module
using System.Net;
protected override WebRequest GetWebRequest(Uri uri)
{
HttpWebRequest webRequest = (HttpWebRequest) base.GetWebRequest(uri);
webRequest.KeepAlive = false;
return webRequest;
}
Good luck!
Itai.
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Hi all,
Does any one heard of a bug in loading tiff image files of 16bit per pixel?
I'm loading an image file into an Image or a Bitmap objects.
but when I'm choosing a tiff file of 16bits to be loaded I get an error.
Is there any easy way to overcome this problem insteed of writting tiff file parser of my own?
Thank you in advance,
Anna.
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