Is there a way to obtain the "default" network card that's being used by the OS (WinXP, WinVista and Win7)?I've been able to get all stats from all NICs (or just a particular NIC); however, I can't figure out how to identify the "default" network card or "default" network connection or the network connection that's being used to send/receive data.
View 1 RepliesI'm trying to disable/enable a NIC on my local machine.
Here is my code:
Dim
colAdapters As
New ManagementClass("Win32_NetworkAdapter")
[Code]...
it always returns with this error: Invalid methodparameters
I've been using Win32_NetworkAdapterConfiguration & Win32_NetworkAdapter to get my network adapter's name, manufacturer and other descriptions. Code used:
Dim networkdata As ManagementObjectSearcher
Dim network As New ManagementObject
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
networkdata = New Management.ManagementObjectSearcher("Select * from Win32_NetworkAdapter")
For Each Me.network In networkdata.Get
Label40.Text = network("Name").ToString
Next
end sub
How can I get the Network Card Address using VB.Net?
View 2 RepliesBelow is my code which enables and disables all network cards in my PC.
It works fine but when I execute this code on a normal User Account, i get the exception " Unable to read beyond the end of the stream" .
Im also aware that as a normal user, one will not be able to enable and disable network cards. I tried changing the settings in gpedit.msc bt it still doesnt work.
How do I grant permission to the user so that he wud b able to disable and enable the network card using the code below?[code]...
I want to get the default printer name with the network path. Because i am using the network printer as a default printer. So i need this in VB.NET or C#.Net.
View 3 RepliesIs it possible to capture the raw signal from a WiFi card in the same way you can capture the signal from a sound card? (I already found code for working with a sound card and for drawing spectrograms) I'm wondering because it would make a cool radio-type project. I'd prefer a solution that integerates well with .net (VB or C#).My basic goal is to capture the ambient radio waves and build a primative "telescope" of sorts. Using the built in computer hardware is just the easiest way to accomplish this. If you have any other suggestions about how to accomplish this goal in a different way please post it as an answer also.
View 1 RepliesI want to create an application that can detect usb card reader device and when i swipe the card it should read.The below code WORKS PERFECTLY IN VB.But when i converted it to vb.net it is showing some problem.Below is the code for that.
[Code]...
i want to read data from smart card using card reader.i need vb.net code help as well as total process that mean what dll/exe will be needed and how can i determine that the card is inserted or ejected from card reader?
View 3 RepliesHere is my idea so far: I have a bunch of computers connected in a local network. One of them is a MySQL server, one will have a vb.NET program wich will act as a "second server" and the rest will be different clients. What I want to do is that the "second server" will send out some kind of message or network package to some of the clients in the network, and they will execute a code based on what message it is, or what kind of package it is. I'll give you a simple example:
[Code]...
i have windows app i want to disable the sound card and enable the sound card by using command button
View 2 Replieshow can implement smart card and private key stored in smart card by using vb.net
View 1 Replieshow can implement smart card and private key stored in smart card by using vb.net
View 3 Repliesi have to develop a ticketing package for a client...and he wants to use smart cards too...i would need to develop the package on a smart device i.e. a mobile application and will have to read the card on the device itself ...i have zeroed on the instrument from motorola. and an blue tooth connected printer to print the ticket.how to read the smart card ...i have searched a lot but have not found anything good.the smart card would contain the amt. balnce in it...and after the transaction i need to again enter the balance in the smart card...
View 7 RepliesI have a .NET 2.0 *.dll that calls My.Computer.Network.Ping(). The *.dll is then run out of an *.exe via AppDomain.CreateDomain() and Invoke(). The problem is that this works just fine under Windows XP but under Windows 7, I get an exception saying that no network connection is available. I tried the Ping() call out of a small console application under Windows 7 and it works just fine.
[Code]....
I need to print the contents of 3 textboxs to default printer. what examples I have found dont seem to work. I was trying the documentprint1 component as i thought it would be easy but cant figure out how to tell it what to print the second part is to print a variable (string) to the printer as well.no need for user to select just straight to default printer with its default settings
View 1 RepliesI have a combobox which contains a sample of names selected from a table.Currently the default name displayed in the box is the 1st name found in the table. What I would like to do is display the name of the person who is doing the selection as the default. The name is stored in a public variable 'PubName' and I do not want the user to be able to type into the combobox themselves.Is this possible?
View 2 RepliesI am creating my own browser. I want to make an option...to set as the browser to default.To do that I have to:Write a code which opens html(generally internet) file through my browser(form load event) DoneChange the "open with..." of the .html,.xml.... files Problem I want to change the open with event from my web browser. Actually i want an options form which will ask the user "Do you want to set /Browser name/ to be your default browser?" If yes then it will change the default options of the internet files.
View 5 RepliesI am writing some code as part of a framework for opening a file.The file is of custom type and should not be opened by more than one instance of my application. To stop multiple file opening I use a filestream to create a lock file and then keep said filestream open. This seems to work in preventing another instance of my application from opening the file ( as it will fail in recreating the lock stream in the files open code ) but if the file is on a network share and the network drops then the original application also can not access the file any more.The code to get the lock stream is as follows:
Try
' We need to keep this stream alive to prevent other applications gaining access to the lock
mLockStream = New FileStream(mLockPath, FileMode.CreateNew, FileAccess.Write, FileShare.None)[code]....
In this I create the lock stream the first time round and then if another application tries to create it, it throws an exception and stops them from getting any further. This is kind of how it needs to work, unfortunately as I said, if this is done across a network and then the network connection is dropped for some reason then I can not delete the lock stream as I get an IOException telling me a process cannot access the file as it is open in another process ( which shouldn't be happening I don't think).
I'm trying to obtain data from a dll, but I do not know how to do it.My code is:
'Function
Public Declare Function SET_XML_PATH Lib "EbmPapstFan.dll" (ByRef ruta As String) As Long
Public Declare Function GET_PRODUCTS Lib "EbmPapstFan.dll" (ByRef ruta As String) As Long
[code]....
This isn't a mistake with the path because Int_A is 0. In addition, GET_PRODUCTS gives me the number of products that software has.The manual say that this function also has string character output.I don't know how obtain this other string character output.
How can I obtain the first row value. ex.
Table
ID NAME AGE
1 peter 14
2 Jogn 13
3 Luke 6
If i click peter I will get 1.I can get the clicked value but I do not know how to get the first item in the selected row.
I am following some instructions that apparently work with vb6, but as i have downloaded the lastest version of visual studio i think its up to version 10.
The code i am trying to make work is,[code..]
I searched a bit for an equivalent.
my problem is that is have to create a program in which I enter some text in a text box and then in an other text box it will display the value store in a selected byte. I really don't know where to start. I have a form with three text box and a button. One of the text box to copy o write whatever I want, the other text box to write the number the byte I want to get the value and the last text box to display the value stored in the byte I choose. With the button I will start the function that will get me the value in the byte.
View 6 RepliesI am following some instructions that apparently work with vb6, but as i have downloaded the lastest version of visual studio i think its up to version 10.[code]The error is that hWnd is not a member of windowsapplication1.form1.
View 3 RepliesI have a general idea of what the code should look like but I can't seem to finish/put it together.I have a year's worth of data such as December 01, 2010 to December 01, 2011.The problem is that there are more than 365 points, some days for example have 3 data points and others have 4, etc..What I would like is to only have 365 points of data by averaging the data points for the days that have multiple points.
[Code]...
- So far I have another column with dates from Dec 1st 2010 to Dec 1st 2011.
- I think I'll need an IF statement for if the whole range of A column equals one of 365 days, it'll equal the average data.
- then I'll need to have a statement for x+1 date for each consequtive day.
[code]...
Is there any trick that could give me the first word of the str [code]...
Say I have a rolling collection of values where I specify the size of the collection and any time a new value is added, any old values beyond this specified size are dropped off.Obviously (and I've tested this) the best type of collection to use for this behavior is a Queue:
myQueue.Enqueue(newValue)
If myQueue.Count > specifiedSize Then myQueue.Dequeue()
[code].....
I'm testing a window application which was written in VB.Net 2003.I set a few BreakPoints and Debug the project.When the debugger hit one of the breakpoints, it stops at there. Its correct.But when I try to add one of the variables to "Watch", it said "error: cannot obtain value".I tried to search the Net and found that some said "its because of structures", some said "its because of passing too many parameters." and some said "its because of too many line of codes (LOCs)".but my problem is not in passing parameters or too many line of code.the function i set breakpoint has only around 300 LOCs (including around 100 line of comments)And the value I tried to get is from my TreeView which is on my Win Forms.its very strange that I can't even get the value from Forms.
View 7 RepliesI have a listbox with urls. For example
View 5 RepliesI have a .dll provided by a vendor and it requires me to pass a handle to the com port the device is represented as in order to access some other functions. Can I get the handle from the SerialPort object? The device I'm working with is a USB-UART converter chip with auxiliary I/O. I need to access the I/O which involves using a Visual C++ 6.0 .dll which is the one that requires the handle to the Com port.
View 2 Replies