I am writing some software that should respond to commands from a port.
How do I set up a handler to respond when data is recieved at that port.
Do I need to do anything special, like respond or set up the port in the first place.
I don't have any experience doing anything like this!
CheersGuy Joseph - Intel Quad Q9450, 4Gb Ram, 3x500GB Hard Drives, NVidia 8800GT, Marian Marc 8, VB Express 2008
I have a VB2005 application that sends and recieves data with another application (3rd party, not vb 2005) via COM port. When I run the apps on different computers they work great, they send all data to eachother and everything is fine. When I run them both on the same computer with either virtual null modem ports or with 2 hardware ports connected together via null modem cable they stop communicating.
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im making an application and i need to install a printer in a computer. The application im trying to do is a client-server application so the idea is that the server send the instruction to the client telling him what to do and then the client will do it, in this case it will go to a SAMBA directory and it will get the drivers for the printer model from there and after that it will install the printer, everything in silent mode.
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any one have a code in vb 2008 which allows me to know the IP address of local network.
View 2 RepliesI have a .net network application , and as part of improving the performance of the software i would like to find the shortest route to the server . When i have more than one network , i need to find the local network ip from these current ip list .
View 3 RepliesI need a program that can send and receive msgs to everyone that's on that program and on that network, then is there a way to add chat rooms to the program 2. I looked all around the Internet and MSDN and found a lot of results but non worked property.
View 6 RepliesPrivate Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Dim FileToCopy As String
Dim NewCopy As String
FileToCopy = "C:Users????DesktopfileName"
NewCopy = "C:Users???Desktop
ewfileName"
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I have created an application using Visual Basic .NET, the application use an access data base which must be shared in server of a local network. The problem is when I run the application in a client machine (connected to the network) I can't connect to the data base.In the same machine the connection work which it's not the case when I change the location of the base to: Data Source="serverIPAdress/DataBase.mdb"
View 2 Replieshow to find the list of SQL servers on the local machine...and not the network...
I searched in google but everywhere its for the list of SQL servers on network....I just want my PC SQL server name....
Is it possible to get all my network users' local IPs using VB 2008?
View 6 Repliesfind a source code of using a local area network(LAN) in visual basic.net 2008?
View 1 RepliesI am developing an application, which hunts the local network for attached computers then checks for a share and a file, if found it displays it in a listbox. While testing this I have seen some strange Chinese or Japanese computer names pop up and in a few seconds go away, the names seem to always be different.
View 8 RepliesHere is my Prob- we have a main router from which we use a distributor or hub for internet connection distribution, ever computer connected automatically obtains IP address of format say - 180.50.50.xxx to access net connection.if any connected computer has different IP format than the given one, it cannot access internet.
View 1 RepliesI have this partially working but only shows printers for one user, need all local and network printers mapped for ALL users on a remote pc so I can migrate them, I know I need to do some sort of for each method but not sure what will work
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I have been trying to make a chat application that can go out the local network for quite some time, but all I seem to find is chat applications for in local networks?
View 7 RepliesI am working on a project based on networking. My problem is that database on server (time to time updated by clients Application) is available in shared folder sometime any client delete that database file from shared folder then project stopped working. So give me process for accomplish this problem is there any way through which is database on server work invisibly and client unable to delete that file. I tried read only attribute on shared folder then my project unable to insert record in that database file.
View 1 RepliesI have developed a windows application for my company. It is a multi user software and we are using sql 2008 as the database. The sql 2008 is installed in our company server. Within our LAN, there is no problem in accessing the software and its working pretty fine.
Now the problem is, some of the managers need to go out frequently(for business tour and all) and they need access to this software. The software is already installed in their laptops.Is there any way to access the database that is in our company server ???
We have few static IPs with us, is there any way i can use that here (Using NAT in the firewall or something)?
I'm trying to make some kind of local port forwarder,this means an app which would in my case forward port 10972 to port 25565.This is because of safety precautions. I did a whole lot of work on searching and coding myself, but without succes. Probably it works one way, but not backways. I think the response doesn't work. I really don't know what to do now.
Public Class PFS
Public Sub New(ByVal IP As String, ByVal listenPort As Integer, ByVal sendPort As Integer)
Dim hostIP As IPAddress = IPAddress.Parse(IP)
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I want to build a search program that searches for a key word over any local networks the computer workstation has assess to like the search for files and folder function on any standard windows computer but with added feature it will also search across the networks servers its connected to?
View 1 Repliesi need to check if my Computer is connected with an Active Directory Domain or only in a Workgroup. Is this possible?
View 4 RepliesIm trying to Get the mac of the local computer(s) on a network and Enable/Disable the Connectiong adapter that is UP (In use), i know i can do this with the system as it stands and for a while i've used a *.bat file to do this for me but not i want a more elabrate way of doing it using a program i make for this, i will also be making it Control other computers remote on my network the same with a simple server side, in the future!, i just need it to Work on the local computer, I've read up about diffrent ways of doing this, like Getting the MAC via Registry like so:
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I am developing an application where in I need to stream audio and video in the local area network. There is calling option from my application where users can call each other(audio call or video call) in the LAN.
View 3 RepliesI have a datagridview which is populated from a database. I have added buttons to this to edit, view, delete. For some reason using the edit button and updating the database my grid fails to respond. I have it set up to display an image based on the row I click on. Before the update this works, after is does not. After the update I run a reload() where I clear out the dataset and repopulate the datagridview. Here is the code I am using for the reload and the update.
Public Sub reloadDG()
'reloadDG is used to clean out the information currently in the datagridview and is replaced with
'current data
'calls refreshForm()
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I am writing a vbs to create local port to connect to our printer server (i.e local port for \PrintServerPrintQueue1). I can create the local port succesfully through editing the registry HKLMSoftwareMicrosoftWindows NTCurrentVersionPorts and then restarting the spooler service in Windows 7 32bit. However, the same script cannot create the port in Windows 7 64bit. The registry was also changed but cannot create the local port after restarting spooler service. Does anyone know what difference between 32bit and 64bit Windows when creating the local port?
View 2 RepliesHow can i send AT commands to my router network port?
View 6 RepliesI want to write a program that can control port communication in a PC by blocking certain port based on the admins request and also monitor incoming and outgoing network traffic. Can i achieve this using vb.net winsock?
View 1 RepliesDim wmins = ("//192.168.1.5/root/cimv2")
objOS = New ManagementObjectSearcher(wmins, "SELECT * FROM Win32_OperatingSystem ")
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I'm mohammed from Oman ,I'm visual studio.net programmer How I can Read the Data From Barcode Weight scales By Serial port and TcpIp port
View 7 RepliesBasically back in VB6 days, I created several VB6 apps with Access as the backend database. I'd package my Access db file with the application setup, which copied it on to a shared network drive, and then different computers on the LAN could use the same backend database file, and that worked just fine. With SQL and VB .Net, I've done work with a SQL database hosted on a remote server, so you can basically build your query string easily and anyone can connect to it from anywhere, and it works just fine.However, what I'd like to do is have a local SQL express database as the backend for a VB .Net application and make a setup program that can install it in a way that it could be shared on a Local area network, without the user who is installing the application do anything.
I know about building a connection string with the local machine name, but I don't really have any experience with including an actual MDF file with the application. Does anyone know how it works, and is it a better approach? Does it work similar to placing an access file in a shared unc path?I know that ClickOnce (which is awesome) can install SQL express easily on a user's machine. However, the key is that I want SQL express to be installed only on the machine that is going to be the database server in a LAN enviornment, and not on every machine, unless it is neccesseary. And then how does your VB app know how to build the connection string to access the database from any machine on the local share?
I need to copy a file from a local computer to a remote computer on the network, if i try to use File.Copy without logon i get the following error:"Logon failure: unknown user name or bad password."How do I provide user name and password for file copy?
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