Write Directly To Ethernet Port?
Feb 7, 2011
I am writing an app that does part of what another app does (I have no access to the source for the other app other than to see Wireshark output.)
I need to send a broadcast over the LAN and then parse the results. However, the sending of the broadcast seems to be code that is direct to the LAN connection, as in it doesn't seem to write to a standard IP/port combo.
I see apps like Raw Ether that do this at a cost of hundreds of dollars.
Is there some way to not have to buy 3rd party stuff to do this in VS2011 w/ VB.net?
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Jun 25, 2009
I want to read the ethernet port by using visual basic. It would be great if anyone can guide me for this.
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Jun 10, 2011
[code]Through these ports I have been able to connect simple press-button triggers (or switches) and programatically "read" them. i.e. tell when they are open or closed, grounded to earth or not.With modern PCs I am now somewhat limited. I can still use the MIC port and USB port (when connected to a USB/Serial cable) but since WiFi, my ethernet port is now "available". If you've read this far, you already know my question. How can I "read" the ethernet port pins. I realize that perhaps not all the pins may be simply read, but perhaps one or two at least.
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Sep 26, 2009
In the past I have been able to simply read the physical pinouts on the:
Games Port (DB15) (using PEEKS and POKES)
Parallel Port (DB25) (also using PEEK and POKES(888))
[code]....
Through these ports I have been able to connect simple press-button triggers (or switches) and programatically "read" them. i.e. tell when they are open or closed, grounded to earth or not.With modern PCs I am now somewhat limited. I can still use the MIC port and USB port (when connected to a USB/Serial cable) but since WiFi, my ethernet port is now "available".|||||||| (8 pins).If you've read this far, you already know my question. How can I "read" the ethernet port pins. I realize that perhaps not all the pins may be simply read, but perhaps one or two at least.
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Sep 12, 2010
Is it possible to write a binary file directly to the clipboard in .NET? (Rather than write it to a file and then copy it?) the file is not an executable but will be pasted to the desktopfolder for example. [Code]
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Sep 7, 2011
I'm trying to "convert" an Access DB to a stand alone application. I have under estimated the differences between VBA and VB. Although I have many questions, I'll focus on this topic first.
The Access DB collects and maintains SNMP traps from a radio station. I import CSV files from a remote Unix server via FTP, parse the text line-by-line, and add to a table as a new record. So far, I can parse the text and add to a dataset but I want to write directly to the data source. I also need error handling that will trap errors for duplicate records. There is a Reconcile function that ensures that all lines in the CSV files are added to the table before the files are permanently deleted. Here's what I have so far:
Public Class clsRnm
Private msTrapTable As String
Private moTrap As clsRnmTrap
[Code].....
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Jan 16, 2012
I have a web service that is currently calling the DOS command copy to put a text file to a specified network share.
This is the code:
Imports System.Web.Services
Imports System.Web.Services.Protocols
Imports System.ComponentModel
Imports System.Data
Imports System.IO
Imports System.Xml
[Code] .....
It appears doing this might be causing some problems and our front-end programmer suggested I see if I can output the stream "output" directly to the network shared printer specified by the SOAP request. Is this possible? This is VS 2010
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Sep 19, 2009
pls help us with syntax on how to write to a port in vb.net.
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Feb 13, 2009
How to open/Read/Write in USB Port
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Apr 2, 2011
I write a code that can detect com port, like this
CODE:
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Feb 6, 2012
I just need to write data to serial port to control a toy car
Moving left, right, forward, back.
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Aug 23, 2010
I need to write and read data from a RS232 port. On the RS232 port there is a RFID Card reader-Writer connected. So I need to send hex codes to the device, and have to poll every 1sec if there is a card in the system. If there is a card I need to read the info that is on the card. My biggest problem is I think is that I am not sure how many characters there will be in return after the read command (maybe it is always the same length this I am not sure). What is the right way to read-write to the com port. So I always got the same result and not skipping a code.
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Feb 22, 2007
I have an older VB6 application which uses a scanner on the COMM port and does the following... (I have been tasked with re-writing it in ASP.NET (VB)...
OLD APPLICATION...
1. reads a Scanner and loads the data onto the PC
2. FTP's the data file to a SQL Server (where a small app picks it up and processes it)
3. Deletes the data from the scanner[code]...
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May 3, 2012
I need to be able to write signed bytes to a serial port using SerialPort.Write() method, except that method only takes byte[] arrays of unsigned bytes, how would i write a signed byte to the serial port?For what I'm working on the particular command takes values from -1700 to 1700.
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Mar 11, 2010
i am trying to write-read data from serial port but it don't work my code look like this
[Code]...
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Aug 6, 2009
setting up a Ethernet connection using vb.net...
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Jan 6, 2011
I am working on an application that collects data from PCs on the network using WMI queries. Is there any sample code that knowing the subnet would autodiscover PCs nearby?
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Jan 31, 2012
I am looking to make a SMTP (Port 25) listener to listen in and accept incoming mail, look at the message source, make changes if needed, and retransmit the message out another port. This iwll make it act like a sort-of intermediary service.how one would write a port listener in VB.net, that could listen in on the port, and display the message in a text box (the whole source, headers and all, since that's what the mail comes in as anyway).
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Apr 15, 2009
I have a remote computer on Cable Internet. Im needing to dial a phone number which is on a Avaya VoIP network. Is there any way to do this in vb.net? Ive noticed alot of stuff using modems and AT commands but thats not what Im really looking for.
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Oct 9, 2009
i would like to ask is there a method which i can read a specific file from another computer??i would like to use IP address to specify the address.
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May 21, 2012
i want to make a little program that virtually REplugs my internet cable.
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Jul 18, 2009
I need to write an application for receiving data (ascii characters) from microcontroller through the serial port in three separate parts. I've created three RichTextBoxes, but I do not know which commands I need to type. In first textbox I need to receive one byte... next six bytes need to be placed in second text box, and finally last seven bytes need to be placed in third textbox.
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Nov 27, 2010
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
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Jul 25, 2011
I have a Windows form.in windows form have a combo box that give me a list of available port serial with it code (Dim ports As String() =SerialPort.GetPortNames())for example( Com1,Com8,Com15,...).but I want to give me fullname of serial port in device manager for example in dvice manager is these (Comunication Port(COM1) - Printer Port(LPT1) And USB Serial Port(COM8)).how to Get it?
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Jun 9, 2010
I would like to detect the Address and Port number of the Parallel Port in computer.
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Aug 2, 2011
If I uninstall the COM1 and reboot, it works. If I shut down (power off) and restart, I get the message below. If I uninstall then click on Scan for Hardware Changes,The given port name does not start with COM/com or does not resolve to a valid serial port. Parameter name:portName
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Oct 20, 2011
I am trying to get my 4 port USB relay board to work in VB.net using the COM PORT. I found some code from a poster who has the 16 port USB relay version. When trying his code i can only get it to turn on relays 1-3 all at the same time. The product can be found here: USB 4 port relay
"01+//" - Relay 1 is switched ON
"01-//" - Relay 1 is switched OFF
"02+//" - Relay 2 is switched ON
"02-//" - Relay 2 is switched OFF
[code].....
So i am confused as to how to separate each relay out with that code above and just be able to turn on any number 1-4 relay on or off independently from each other!
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Oct 20, 2011
I am trying to get my 4 port USB relay board to work in VB.net using the COM PORT. I found some code from a poster who has the 16 port USB relay version. When trying his code i can only get it to turn on relays 1-3 all at the same time. The product can be found here: USB 4 port relay I was following what the guy in the post was doing to turn his on:
[Code]...
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Oct 15, 2008
Im having problem with the Serial Port. When i run my program, "Access to the port 'COM1' is denied". What does that mean? Im not sure whats happening because theres no error in my code. Someone suggest me to use 'COM2'. Which is also the same result. I have a microcontroller, programmed and run it. And i need to capture the data onto my vb, which is on a multiline textbox. How to i do that?Just to double check my code?
[code]...
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Aug 16, 2011
i am a absolute beginner and i want to use vb to receive data from micro controller through serial port using rs232 standards, i found this code to receive the data serially, can any one tell me where should i paste this code, so that the data received will be displayed in message box.Private Sub DataReceived(ByVal sender As System.Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) HandlesSerialPort1.DataReceived
[Code]...
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