I seem to recall that there is an API which will return the INF file associated with a device driver but I'm drawing a blank. I want to get the path to the INF File, File Name Section Name and File Date.
View 17 RepliesA 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 RepliesIs there an API which will tell you the start code for a device/device driver?
View 4 RepliesI am developing a software that will monitor/poll serveral Modbus/TCP devices on a network.
I have managed to connect to one device using VB.Does anyone know of a driver or perhaps a 3rd party software I could use that will enable me to connect to more than one Modbus/TCP device?
I am writing a class library that envelopes an USB device driver. This device has its own class library, provided by the hardware vendor.
Very often, especially if you handle with old DLL or COM assemblies, there are methods (functions to be correct) that return TRUE if all was OK, or FALSE if any error happen. Often these methods return information about the error in one of their parameters or separately in a GetLastError method or even if in an OnError event.
Now, normally I handle all native .NET exceptions in my class libray handling locally or re-throwing to the client if the error is useful to know. But what to do with all other errors that are hidden in the vendor's methods? (in the true I have no exceptions, but only returned TRUE or FALSE values).
Let's make an example with the method "CONNECT" that connect the client to the USB device.
I envelope the method in this way:
Public Sub Connect()
oVendorDevice.connect()
End Sub
now if any connection error happen, the vendor's connect method return FALSE. But I do not know why the connection failed. To know why the connection failed I have to call (for example) the method GetLastError that gives me information about the error. (but do not forget that other vendors use other strategies like returning the error in a method's parameter or in a OnError events.
Now, in order to follow a good .NET exception handling strategy I could write something like this:
Public Sub Connect()
Dim res As Boolean = oVendorDevice.connect()
If res = False Then
[Code].....
Trying to figure out if there is anyway built into windows 7/Vista/XP and/or Dpinst to verify that a driver is installed? I created a program that uses DPinst to install a driver and now I need to figure out how to tell the user that it is safe to close the program once the driver is install as the driver takes longer on some machines to install. Would anyone know how to get this to work?
View 7 RepliesI am trying to import a TAB (NOt comma) delimited text file into a DataGridView. The following code works fine if I have a comma separated file. All I have to do is change the FMT to "Delimited".It just does not work with FMT=TabDelimited. All columns are read into single datatable column. The text file is ANSI text and I have double checked to make sure Tabs are tabs and not spaces, even exported a sample Tab Delimited file from Excel.Can this even be done using Text Driver? [code]
View 2 RepliesIs there any way we can kill a driver (.sys file)?
View 10 RepliesI have a scanned driver license file in bmp format,is it possible to read license information in vb.net.
how to read drver license OCR details?
I need to create a driver that can be installed as a printer and instead of printing to a physical printer it needs to print to a text file. I have no idea how to do this. I have searched for an answer on these forums but so far I haven't had much luck. I know it isn't easy to create a driver in VB but I don't know if this is technically a "driver" since it isn't interfacing with actual hardware.
View 6 RepliesBit of a long shot but does anyone know if it is possible (I said possible, not easy ) to create a file system mini filter driver in .NET? I'm assuming not but I don't really know of any technical reason why... just that every single example on the interwebs is C++.
I realise it would take me a very long time just to convert all of the functions and structures required to .NET before I even got started on the actual functionality of the filter driver itself but theoretically is it possible?
how can i make my program feel if any device or usb device plugged into the computer or unplugged.url...
View 3 RepliesIs it possible in VB.NET to get the directory of a file copied/moved to a removable storage device?
For example, I have msword document on my desktop and move it to my storage device. A dialog box will appear or anything that will show the directory of the document.
The idea is whenever you move a file into the specific device, it will automatically processed. I will be using this to compress a file automatically when it is moved or copied to the storage device.
This is my code to remove a file from a selected USB device:
Dim fileInfo As IO.FileInfo = CType(ListBox5.SelectedItem, IO.FileInfo)
My.Computer.FileSystem.DeleteFile(fileInfo.FullName, CStr(ListBox4.SelectedItem) & fileInfo.Name)
ListBox6.Items.RemoveAt(ListBox6.SelectedIndex)
But i keep getting this error:
Overload resolution failed because no accessible 'DeleteFile' accepts this number of arguments.
I was wondering if there was a way to transfer a file to another device over bluetooth using vb.net.
View 1 RepliesI'm currently doing a project that includes access 2010 My question will be what driver can I use for an access 2010 *.accdb type file? For a *.mdb it works perfectly well with
ConnString ="Driver={Microsoft Access Driver (*.mdb)};Dbq=" & Application.StartupPath & "\CITSDB.mdb;Uid=Admin;Pwd=123;"
But, when I changed the mbd to accdb:
ConnString ="Driver={Microsoft Access Driver (*.accdb)};Dbq=" & Application.StartupPath & "\CITSDB.accdb;Uid=Admin;Pwd=123;"
It resulted in errors:
ERROR[HY000][Microsoft][ODBC Microsoft Access Driver]Could not find file '(unknown)'.
ERROR[IM006][Microsoft][ODBC Driver Manager]SQLSetConnetAttr failed
ERROR[HY000][Microsoft][ODBC Microsoft Access Driver]Could not find file '(unknown)'
And then it shows me that my code for
If dsLogin.Tables(0).Rows.Count = 1 Then
IndexOutOfRangeException was unhandled
Cannot find table 0
I knew it must be the driver but I don't know what accdb driver I can use for the connstring.
I posted the message below in the VB6 section of this forum with no success, but as I've now got access to VB2008 via work, I thought I'd try again here. Basically I'd like to be able in code navigate to a folder held on a mobile device like a mobile phone connected to a pc using MS Activesync? It shows up in the drive list within "My Computer" as a system folder, I've vb6 code to detect all the drives including network mapped drives but not the mobile device.Ultimately I'd like to do file copying when my program detects a mobile device has been connected.
View 1 RepliesIs there a way to search fast in text file? i have a 5mb text file and it is slow to search ..Im using Vs2008 (VB) and MC3100 WinCE 6 platform
Code
Private Sub DataHandler()
[code].....
I am looking for a free open source .Net based (prefer C#) pdf driver. where I can download one?
View 1 RepliesIm working with a CD722UN Customer Display for our POS application. it comes with a USB2.0 connection and a installation package containing a driver etc. now, for my application. how should i do when i want to access this driver? at the moment i'm using the "CD722UN application"s .dll path but that can wary from clients OS etc. [Code] my first thought was to first check if there was a device installed in the device manager and somehow use the driver from there? [Code] what is the best solution?
View 1 RepliesI'm pretty sure the answer is no but I am curious, is it possible to write a driver in .NET code? I am talking more software driver here rather than hardware driver (ie something like a file system filter as opposed to a driver for a printer or something).
View 3 RepliesIs there a tutorial on how to use VB.NET with mongodb?
It uses C#. However, I am used to VB.NET. Can the C# driver interact with VB.NET?
I'm starting to get into the microcontrollers and I was wondering if anyone had any experience using visual studio and/or visual basic writing drivers and application software for USB Devices and using different microcontrollers from Atmel and Microchip?
If you know of any good websites or anything out there that would get help get me started that would be great.
Is there a way to get a list of ODBC drivers that are installed on a Windows XP machine from .NET?
I basically would like to see (in .NET) what is in:
Control Panel->Administrative
Tools->Data Sources (ODBC)->"Drivers"
Tab.
I have build an application in VB.NET (3.5) wich connects to an oracle DB. I works perfectly on my pc. However. When I install the app on a pc without oracle it will not connect to the DB on the server. Do I have to install somekind of driver on the client pc?
View 4 Replieshow to install a ODBC driver using vb.net windows application ?
View 3 RepliesI am working on a project that needs to using an activeX driver (libaray), a .ocx file. The driver have some properties and methods. I added the reference and have a new instance. When I try to put values to the properties, I got error messages from the driver.
Imports CBMCOMMLib
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[URL]
MaxTraces is one of the properties. Am I using the library correctly?
I have a requirement to convert a word file to PDF and to display it to users.It needs to be in PDF to prevent users making changes to the document.Only a few of the PCs which use the software have Word 2007 installed, most have Word 2003 but all have a third-party printer driver CutePDF installed.I would like to automatically convert the file to PDF using CutePDF without the user having to open a print dialog. In fact I don't want the user to have to do anything at all except request to view the document which will set the automatic process in motion.
View 2 RepliesIīm using Windows 7, 64 Bit and Visual Basic form VS 2010 to develop an application.
I want to remove a HID driver with the Devcon.exe tool. Using the console (cmd.exe) with the following command, there is no problem. The driver ist removed immediatly.
D:devcon remove =keyboard "HIDVID_1784*"
If I try the same from the application with:
Shell("C:WindowsSystem32cmd.exe /k D:devcon remove =keyboard ""HIDVID_1784*""", AppWinStyle.NormalFocus, True, 1000)
or:
process.StartInfo = New ProcessStartInfo("C:WindowsSystem32cmd.exe", " /k D:devcon remove =keyboard ""HIDVID_1784*""")
process.Start()
then devcon returns the message:
"The 1 device(s) are ready to be removed. To remove the devices, reboot the system."
and the device is not removed or disabled, and of course, I donīt want to reboot the system.
Does anyone have the same problem or even better can tell me, how to solve this problem, so that the driver ist immediatly removed?
So - we are FED UP with our medical records packaging (document imaging) system and want to create a simple filing interface for our scanners to use in VB. Part of this deal is getting VB to interact with a TWAIN Driver.
There is some code out there for ASP.NET and C# - does anyone know of a VB.Net based code I could look at?
I have spent part of my day trying to recreate the ASP into VB but the calls are just different enough to get interesting.