Measure How Many Bytes Of Data Does A Device Sent To Computer Using Program?
Nov 25, 2009ust want to ask if its possible for me to measure how many bytes of data does a device sent to my computer using vb.net?
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Make Program Feel If Any Device / Usb Device Plugged Into Computer Or Unplugged
May 5, 2010how can i make my program feel if any device or usb device plugged into the computer or unplugged.url...
View 3 RepliesSending Data To MIDI Device On Computer
Jul 1, 2009I need some sample code for sending data to the MIDI device on the computer? I'm not quite sure what the hardware's address is though.
View 2 RepliesInterpret Bytes Received From USB Device In .NET?
Nov 1, 2011I'm successfully receiving bytes from an USB device using a HID USB .net library.Here is a sample of my code :
Dim ptr As IntPtr = USB.USB_Read()
Dim buff As Byte() = New Byte(USB.USB_ReadLength() - 1) {}
[code].....
My question is : how can I know wich button is pressed ? Meaning : I just want my program to store the button pressed and do an action when pressed.
Write And Read Bytes From Usb Device?
May 31, 2011I am trying to write and read bytes from usb device.I have an array dout(8) of boolean say f,t,t,f,t,t,f,t representing switch states.I need to convert that to a variable DataOut as byte. 01101101 Later I read the usb device.This gives me a variable Data as byte 10110100 I need to convert that to an array DIn(10) of boolean t,f,t,t,f,t,f,f All my code attempts have failed.
View 2 RepliesGet Related Measure Groups Given A Dimension In Program?
Mar 30, 2012I'm using VB.NET to connect to and parse data from an Analysis Services database.
The problem I'm having is while trying to find all Measure Groups that are related to a given Dimension. I've been digging through the API and it doesn't seem that Dimensions have any information on Measure Groups at all, but Measure Groups can contain Dimensions.
This makes it easy if I want to get a list of related Dimensions given a Measure Group(measureGroup.Dimensions), but what I'm looking for is the opposite.
The only thing I can think of is to loop through all the Measure Groups within the Cube and check if it contains a reference to the Dimension in question[code]...
Have Computer To Tell Usb Connected Device?
Feb 3, 2012How to have the computer to tell the usb connected device what to do.
View 1 RepliesConnect A Scanning Device To A Computer Using .net?
Jan 29, 2011How can i connect a scanning device to a computer using .net? Code 128.
View 4 RepliesEmulate Computer As A Keyboard USB Device
Apr 3, 2009Anyone know how we can connect a USB cable to one of the ports on the computer and send keys to it and have that acted like it was a keyboard if the cable was connected to another computer? I'm sure the USB jump drive for example is like a mini-computer, so how do we do the same thing but with a computer? Is there any code in VB, .NET for this?
View 1 RepliesFind The Operating System Of The Device (if It's A Computer)?
Jan 26, 2012I am building a simple network browser that pings a specified range of IP addresses, and if a response is discovered, it gets the host name and MAC address of the device it pinged.My first question is how can I find the operating system of the device (if it's a computer)?My second question is, for devices that aren't computers e.g. a wireless printer or router, is there a way I can find out what type of device it is?
View 1 RepliesConnect The EPP (Encrypted Pin Pad ) Device To Computer By Using Mscomm Control?
Mar 14, 2012Currently, i am trying to connect the EPP (Encrypted Pin Pad ) device to my computer by using mscomm control. May i know what are the possibility problems may cause the DSRHolding does not return to "True"?
View 3 RepliesTiming Code - Measure The Performance Of Seven Sorting Algorithms In A Single VB 2008 Program
Sep 15, 2010I'm trying to measure the performance of seven sorting algorithms in a single VB 2008 program. I've tried using a Timer componend, the Stopwatch, and DateTime.Ticks but nothing works. The following simple code produces a result of about 500 (milliseconds), which is correct, but when I change 500 to 1000, I get a ridiculous result like 0 or 8.
[Code]...
Create A Program That Will Send Data Across Network To Another Computer?
Mar 23, 2011I want to create a program that will send data across my network to another computer. The data will be taken and used as sort of a command for the computer to load a webpage, or whatever I decide to do with it. I was familiar with the winsock control in Vb6.
View 2 RepliesSockets - Check That If Another Computer In The Network Send Some String Data To The Listener Computer?
Mar 19, 2012i have a task to create a TCP Server (a program that is listening on its network card interfaces for incoming data stream).I have search on the internet and i found that i can use two methods : Socket or TCPListener class.I have created an example for Socket class, but i wondering how could i test it? I need to check that if another computer in the network send some string data to the listener computer , then this message should be displayed.Here is the example from microsoft that i am using for TCP Server using Socket:
Public Shared Sub Main()
' Data buffer for incoming data.
Dim data = nothingc[code]....
But it does not work because of the PORT setting.If in the TCP Server i have "Dim localEndPoint As New IPEndPoint(ipAddress, 0)" the client crashes, but if i change the port from any (0) to 11000 for example,the client works fine.Do you know why?
Later edit2:Maybe i should have started with this question:Which method is recommended for my scope?asynchronous or synchronous method ?
Access The Data Coming To The Computer From The In-built Bluetooth Module Of A Computer On Windows Platform?
Feb 4, 2011i have encountered a problem, i want to access the data coming to the computer from the in-built bluetooth module of a computer on windows platform, this data has been sent by a remote bluetooth module say a by an autonomous device (just like a bluetooth mouse connecting to the computer). The to be sent is in the form of numbers and i need these to manipulate on the computer.
View 6 RepliesHow To Transfer Files From 1 Computer To Computer With Program
Nov 18, 2010how to transfer files from 1. computer to the computer with the program made in visual studio 2008 (visual basic)
View 3 RepliesCreate A Program In Program That Interfaced With An USB Device?
Feb 5, 2009Anyone ever try and create a program in visual basic that interfaced with an USB device? For example say I want to build a clock but I want to have the software to control this through usb. I want to write the clock setting program that tells the clock what to set for time and date and things like that.
View 3 RepliesReading Data From A Socket (as Bytes) And Storing Data In A String?
Nov 29, 2009I am reading data from a socket (as bytes) and storing this data in a string. Then later i need to access specific bytes within the string and do some math with them. However the bytes that I read back from the string are not what I am expecting.
[Code]...
Get An External Computer's Computer Name In Program?
May 2, 2012This would be easier if I were able to have the external computer get its own name and just pass it to a web service as a variable, but I'm not able to do that right now. There are a variable number of computers from several different entities that regurarly access a web service on one of our servers. Changing only some VB.Net code on the server and nothing at all on any of those external computers, how would I be able to get their names programmatically in VB.Net?
View 2 RepliesVB 2003 - Handling Data - Transmitting Data From A Comm Device Via Serial Port
Nov 10, 2009I'm currently working on a project where I am transmitting data from a comm device via the serial port and resorting the raw data (in binary) to its respective ascii values. The problem I'm facing is determining the most efficient method to accomplish my goal. Essentially, I have 68 bytes coming in, the first and second bytes represent the page and packet number and the data itself ranges from 3 to 64, the remaining for my checksum.
What I am needing to do is, grab 50 consecutive bytes per variable in my array, and that is where I'm confused. I have easily pulled my 3-64 bytes and stored that data to a string. I just don't know the most efficient method to accomplish my goal. Should I write directly to file all my data, as there are like 8 pages, of 128 packet data. [Code] I can capture the the first 50 by using a for-loop easily, but what would be the preferred method to track what data chunk I've taken? The more I think about it, I think I may just want to write to file, all my data, and then just take them back to back in 50 byte chunks. Is that the most efficient method?
Continously Reading Data From A Modbus TCP Device And Store Data In A Textfile?
Mar 2, 2012I have a modbus TCP device that I have managed to connected to through my VB source code.
I want to poll (continueously read) data from certain registers of the device, and store the polled data in a file (text,csv, excel).
RijnDael Encryption/decryption - Select The Key Bytes And The Block Bytes From The Numeric Up/down?
Nov 13, 2010I want it to do is that you input a string, then you select an algorithm (Theres only going to be one RijnDael) then you input a key, then the Initialization Vector comes from "txtIV.text" then you select the key bytes and the block bytes from the numeric up/down, then you either encrypt or decrypt.
View 1 RepliesGeneric Restriction - Dont Select The Key Bytes And The Block Bytes From The Numeric Up/down?
Sep 16, 2011Ok i am having some issues designing a base-class to handle generics.Caveat is i need to restrict the type put in as a Numeric type, specifically Int16, Int32, or Int64 (Short or Long).I know you can do Of T as {Structure} but i dont want to select the key bytes and the block bytes from the numeric up/down.
View 2 RepliesBytes Written Exceed The Content-Length Bytes In XML Post?
Feb 19, 2011I keep getting a ProtocolViolationException "Bytes to be written to the stream exceed the Content-Length bytes size specified." on the following code.I've tried setting Content-Length numerous ways with no success.
Dim url = "https://domain.com"
Dim req As WebRequest = WebRequest.Create(url)
req.Method = "POST"
req.ContentType = "application/xml"
[Code]...
VS 2008 What Does This Line Exactly Do - I = Stream.Read(bytes, 0, Bytes.Length)
Dec 28, 2010What exactly does this line do?
i = stream.Read(bytes, 0, bytes.Length)
Does it read the entire message string sent by the client? I have a line to write to the stream later in the code and that does not seem to be sending anything back to the client, although the code around is excuting.
i = stream.Read(bytes, 0, bytes.Length)
While (i <> 0)
Try
' Translate data bytes to a ASCII string.
[code].....
Develop Smart Device Using Program?
Jul 21, 2009I dont know how 2 develop PDA system... using vb.net
View 3 RepliesModify A Program To Control A Usb Relay Device
Mar 30, 2010We are trying to modify a program to control a usb relay device. Essentially what the program originally does is give you a series of check boxes that you check to make the relay fire. We tried to modify the code so that the box is checked after 5 seconds using a counter and an if statement. It works, but only partially, what happens is the check box shows a check, but the even that is normally triggered does not happen. [code]
View 4 RepliesWindows Cannot Load The Device Driver For This Hardware Because There Is A Duplicate Device Already Running In The System (Code 42)
Nov 13, 2009A Problem in accessing a device from VB Windows cannot load the device driver for this hardware because there is a duplicate device already running in the system. (Code 42) This error is because i am using 2 devices of the same company which has the mass usb storage on it and when i install one of the device the other hides. So one is detected the Other is not. It also give a error called designed dragnonacally something...
View 2 RepliesRead 2 Bytes Out Of 4 Bytes From A Text File?
Sep 22, 2011I created a text file contains 4 bytes of data
AABBCCDD
I just want to read the first 2 bytes (AABB) to execute it with my program.
Then I'll need to read the last 2 bytes (CCDD) for another computer routines
VS 2008 - Add 5 Bytes Of Data At The Beginning?
Oct 21, 2009I have some questions about arrays.
1) Lets say I open a file in a byte array and I need to add 5 bytes of data at the beginning. How would I go in doing that? ex: attaching to arrays together.
2) How would I go in adding 1 byte of data in a bye array?
All i need to do is open part of a file in bytes. Add a letter and 2 numbers to it at the begging and a number at the end.All i need to know is how to attach 2 byte arrays together and how can u add a byte of data to an array.