I am new to this forum as will as to VB. I am using VB6. I want to access the USB port in order to read the data at the USB port comming from my Data acquisition card.Or as a matter of fact can I also access the data from my mouse, because it also transmits the signal when ever the mouse is moving.
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I can find documentation (preferably with code samples) that will guide me through all the steps to activate and read from a serial port?
View 6 RepliesI have am using an XBee ZigBee wireless module to communicate with a project of mine. I currently have it set up to the point where I can open a hyperterminal session to COM 4 (which is the usb com port), and recieve the data that is being sent via the microcontroller on the other side of the wireless link.
I would like to make an app that takes the data and puts it in to a more user-readable format. (Via VB 2005) So far all I have come up with is some problems. It doesn't seem like I can use the built in serial port tool to access a "virtual" com port. From the following link:Quote:
Note You cannot use the Microsoft .NET Framework classes to directly access other types of ports, such as parallel ports or USB ports.[URL]..Do I have to use a "COM port redirector" to make it seem like a real COM port? Or is there some easy way that I am not thinking of?
I have been doing some research into accessing devices on a USB port and it's kind of helped, but not really. From what I understand, I can use the IO.Port namespace to access a device on a USB port (usually). Let me know if this is incorrect.
First, I made a simple program that looped through the ports available. I get COM1 and COM3, but I have 4 USB ports. Where are the others?
My
Dim comm As New List(Of IO.Ports.SerialPort) 'list of comm ports
For Each PNstr As String In IO.Ports.SerialPort.GetPortNames() 'get a list of Com Port Names
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I'm debugging a VB app where I'm using a comm port attached to a bluetooth radio paired to another bluetooth radio in order to communicate with a remote barcode scanner. The pair of bluetoooth devices basically work as a serial cable replacement. Sometimes it works fine, but after a while I get an UnauthorizedAccessException message which breaks the program (see attached jpeg).
I only get this when I use the radios and not when I use a direct cable. I wonder if it has something to do with other bluetooth devices nearby trying to communicate with mine. I've used the .NET Framework 2.0 Confuration tool to adjust the zone security to give full trust to MyComputer, so I don't think it has to do with security, but I'm really going beyond my area of expertise here. I don't know what's going on.
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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 RepliesI 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?
View 2 RepliesI would like to detect the Address and Port number of the Parallel Port in computer.
View 4 RepliesIf 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
View 8 RepliesI 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
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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!
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:
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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?
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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
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The link below has code to connect to a modem thru the serial port but it is for an earlier version of VB. when I convert the code, it does not fully convert and has 4 errors that prevent building the project. can someone tell me what needs to be changed or added?
[URL]
Note: the error: not CLS-Compliant
Basically in visual basic 6 I could access word tables in existing templates with the code owordactivedoc.tables(1).select() where owordactivedoc refers to the active word document and tables(1) refers to the first table in the template.Trying the same code in VB 2003 just leads to errors. Secondly how do I access bookmarks or alternatively word variables.Furthermore how do one deploy web.services. For example the current program I am building is for another computer. Simply copying the web service to Inetpubwwwroot dont work because it is not picked up by the Internet Information Services program. I have to create the web service in vb2003 on the other computer change msconfig manually. Copy and paste the existing service vb file in the created folder replacing the empty vb file.
View 3 RepliesDo someone know if there is a\\ USB control for the USB port communication? like the SerialPort control for the COM port.
View 2 RepliesI am having a .net dll. Now i want to access it in my VB6 project. SO i don't know how to register it and also I am not sure whether the dll has comattribute specified in it or not.
View 1 RepliesI have a VB.NET console application that must write a message onto a queue (resides on the mainframe). We have all the clustering and everything set-up by our admin. We already have an existing windows service that successfully listens to messages and also writes messages to various queues.I have basically re-used most of my code from the windows service project.But when I try to access the queue manager, I hit the exception "MQRC_HOST_NOT_AVAILABLE". The error log from the Websphere MQ folder says
AMQ9213: A communications error for occurred.
EXPLANATION:An unexpected error occurred in communications.
ACTION:The return code from the call was 0 (X'0'). Record these values and tell the systems administrator.
Here is the complete exception stack.
IBM.WMQ.MQException was unhandled
Message="MQRC_HOST_NOT_AVAILABLE"
Source="amqmdnet"
StackTrace:
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I have an ASP.NET (C# Code-behind) code. I need the very same functionality in one of my VB 6.0 program. As the code is too complex, I don't want to replicate it in VB once again.
Now, is there any way to access my .NET code from VB?
myObject.rect.X = 100
myObject has a property called rect (which is a Rectangle). During runtime I will want to chage the X position of such rectangle, but I am given this error:
Expression is a value and therefore cannot be the target of an assignment.
Then, how am I supposed to change such values?
How do I access the sContents variable in loadBoard() sub to LoadTable() sub
Sub loadBoard()
Dim oFile As FileStream
Dim oReader As StreamReader = Nothing
Dim sContents As String
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I have a windows service on a server which accesses a folder and database which is on different server.i was told to create an .ini file and add the settings here. so i have to add the path to the folder and database in .ini file, correct?is there anything else which i should add in .ini file?is it compulsory to give the [section] in the .ini file?
How can i access this .ini file from my vb.net program?can i store this .ini file anywhere on the machine or it should be stored in a particular folder?
i m preparing a project in vs 2008 i m unable to add new row to my database. i have created database in Microsoft SQL Server Compact 3.5 (.NET Framework Data Provider for Microsoft SQL Server Compact 3.5)my problem is the data is updated in dataset but database is not updated.please help me out as i have to submit my project on 20 of aug 2009.
View 6 RepliesHow do I access the new value that a user has entered into a DataGridView cell? I've tried using the "e" parameter in several event types including CellLeave and each time I can only reference the old value.
View 4 RepliesI am trying to access a remote 2003 server using WMI. I can connect but when I try things like listing the services for that server I get the following: Access is denied. (Exception from HRESULT: 0x80070005(E_ACESSDENIED). Using the same code, I can connect and get a list of services a remote 2008 server. Here is the code to connect to the server (which gets me connected):
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what is the quickest/neatest way of accessing the end of a list ? I have been using myvar=me]ylist(mylist.count-1)VB2008 user
View 7 RepliesI have this,
Public Class posData
Public Property strLabel As String
Public Property strX As String
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then i want to loop through all the objects within my list so i have a for each position in posList, inside this is where the problem occurs, i want to be able to write something like this, a1.blnavail, this is not happening however, i know i can use position.blnavail but i need to hardcode the position for my logic to work correctly
I have two variables, X and Y (this is just figurative)
X = 123
Y = X
How can I get that X out of the Y to be able to get the contents of X from the Y? I just want to be able to do something like tell a textbox to display the contents of the variable within the Y variable (thus, the contents of X).
What I want to do is have my vb .net program open ms word and put an address into the envelope wizard this way the user can go from there adjusting the envelope size etc. In ms word 2007 I have found that if you hit alt, then 'm' then 'e' it will open the wizard and put the cursor in the right place to type the 'to:' address.Current I can open word and put the address directly into the new document.Here is what I have so far:
Dim oWord As Word.Application
Dim oDoc As Word.Document
Dim address As String
oWord = CreateObject("Word.Application")
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Here's what my Project looks like
[URL]
Yes, the Build Action is Embedded Resource. I also added this in the AssemblyInfo
Assembly: WebResource("WFL.WebResource.EXT.XXX.png", "image/png")
So now, in the default.aspx i say
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim cs As ClientScriptManager = Page.ClientScript
Dim strReturn As String = cs.GetWebResourceUrl(Me.GetType(), "WFL.WebResource.EXT.XXX.png")
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But when accessing the returned URL, i get The resource cannot be found.
