Basically I'm adding a registration feature into my program, or a similar thing to that. So, when you purchase you can install up to 3 copies (for example), but not more.To do this, I need to know some kind of information that is unique to each computer (to store in my database online), I thought of the name of the computer, but that isn't unique, obviously.
View 9 RepliesI've seen threads on this topic posted before but they didn't come up in the search that I did. What's the best way to get a computer id code of some kind that is unique for each computer so I could use that to create a unique software activation code?Does Visual Basic have any staements that can give you this kind of information.
View 18 RepliesI have a problem where I am running a Console App to obtain some computer information on a pc. The pc has the following specs:
Windows XP Media Center Edition 2002
Service Pack 3
2 GB RAM
.NET Framework 3.5
The script runs fine on my Vista Ultimate PC. However, my friend runs it on his pc and nothing is written to the file. The directory and the file are being created, but nothing is in the file. Is there something that I am missing about XP Media Center Edition?
Here is the code:
Dim cFile As String = "C:System InformationsystemInfo.txt"
Dim objWriter As New System.IO.StreamWriter(cFile, False)
Try
Dim mObjOS As ManagementObjectSearcher = New ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem")
Dim mObjCS As ManagementObjectSearcher = New ManagementObjectSearcher("SELECT * FROM Win32_ComputerSystem")
[Code] .....
how can i look up for a specific computer given ip or computer name ...retrieve the user logged on..
View 2 RepliesHow can I read unique Computer ID using vb.net
View 9 RepliesIs there any unique computer ID that distinguishes a computer from other, like finger prints for human?
View 2 RepliesI'm using the datagridview. This is the sample data:
[Code]....
How do I parse through the grid to rename the duplicate values in a particular column (in this example it's the l_name field) into such a format?
[Code]....
I am trying to populate an array with all the unique values in a string, to prevent me ReDim'ing an array every time I find a value that not already contained in the array I am trying to create (consumes alot of time), I am trying to get the unique values first so I only have to ReDim once and after that I can simply iterate through the string and the array I have will be the correct size for the unique values I aquire (I am using this...)
[Code]...
get a list of printer's (name,port,model) from a computer over the network. I know how to list my own, but it's from querying the Win32_printer object on my machine, I need to be able to do something similar on a remote machine.
View 4 RepliesIn my [2005] application, I use the MacAddr / CpuId / DiskId of the computer to validate my licence using the WMI calls. The problem is we just can't thrust this feature because on a good percentage of the computers this feature is not installed properly or completely disabled.The users are not experienced, they are located in a remote location and I just don't feel like debugging their Windows installation every time they want to try my application.Is there a working alternative that I can use that will always return me a unique identifier for every computer which will always be available on 2000 / XP / Vista systems?
View 8 RepliesI'd like to get ram, proccessor , motherboard and videocard information in vb. Does any one know what functions to use?
View 1 RepliesI'm trying to use the DHCP API (using the references on pinvoke.net) to retrieve a computer's MAC address when given the IP address but I can't get the code to work. I've run all the C# code on pinvoke.net through the C#-to-VB converter but I'm stuck now.
Here's what I have so far. The value of res is always 5 (should be 0). Thing is, I can't find any documentation on what the return codes mean
vb
Private Sub GetMACDim client As String = "1.1.1.1" Dim server As String = "0.0.0.0" Dim si As New NativeMethods.DHCP_SEARCH_INFO si.SearchType = NativeMethods.DHCP_SEARCH_INFO_TYPE.DhcpClientIpAddress si.ClientIpAddress = Convert.ToUInt32(StringIPAddressToUint32(client)) Dim res As UInteger Dim oInfo As IntPtr
[code]....
How can I retrieve info from a HTML table like this :
[Code]...
what i want is when the user inputs the username and password, his/her information will be showed in the textbox located at the mainform which shows the users information like where he live and his occupation. how to show users data in the textbox of another form when he/she logged in. im using vb.net and mssql
View 1 RepliesI am attempting to write/read data to/from a device that is connected to my laptop via a USB-to-serial connection.The device getsa picked up in my device manager on com port 8.What do I need to be able retreive and send info. across to the device?
View 18 RepliesI am working on making a program that will log into my internet banking site (this will most likely have to be done in IE) grab my current available balance and store this to a string, before I do any research I was wondering if anybody had anything like this already completed.I also need it to do this silently (as in no open IE windows) no visibility of program running to the user.
View 7 RepliesI am using the following SQL statement to retrieve information from an access 2003 database but this command keeps stripping out the proceeding 0 from the number of the month. The variable is called TBookingsDateFulldate
Dim sqlQuery As String = String.Format("SELECT [ID], [Date], [Zone], [Year], [Subject], [Teacher], [LessionID]" & _
" FROM tblBookings" & _
" WHERE (((tblBookings.[Date])={0})" & _
" AND ((tblBookings.[Zone])='{1}')" & _
" AND ((tblBookings.[Active])=0)" & _
" AND ((tblBookings.[LessionID])='{2}'));", TBookingsDateFull, TBookingZone, TBookingsTimes(B, 0))
I know I can pull the amount of memory by using My.Computer.Info.TotalPhysicalMemory but I would like it to show like it does under My Computer properties. What do I need to do this?
View 1 RepliesI need to convert a large VB6 app to vb.net which does a lot of database work and produces a Crystal Report. The initial form is simple a login form which validates the user. I am trying to use a datareader to retrieve the user's login info but it won't compile on the statement where I'm trying to get the Connection String from the app.config file. It complains that the ConfigurationManager is not declared on the dim statement. Where and how do I declare the ConfigurationManager? I thought it was just pointing to the app.config file but apparently that is not correct. [Code]
View 3 RepliesI can't seem to find any answers that work. Here's the setup:
Info class: Public Class ProductStageInfo
[Code]...
maybe I just don't understand the whole collection/index/thing. All the examples I've found are regarding single dimension collections - 'how to find name within this collection', and the responses use strings to search through them, but somehow the Info class is being treated differently, and I'm not sure how to translate this..
I am trying to read the pc system information so that I can retrieve the time and date format.
My code below:
Dim Info As System.Globalization.DateTimeFormatInfo
Info = System.Globalization.CultureInfo.CurrentUICulture.DateTimeFormat
Debug.WriteLine(Info.LongDatePattern)
Retruns in debug: "dddd, MMMM dd, yyyy"
So I have 2 questions;
1) Why is there, a dd after the MMMM.
2) My company has small franchise branch offices round the world - France, USA, etc. What I am trying to do is get the date format so I can decide what country I am in - then when I print out the date on my order labels I can change the date format to suit Americans or Europeans etc.
I have an application that gets executed on a windows mobile device using RAPI that outputs the current device type, rom version, and wireless driver version etc.. to a .txt file on the device.My plan is to then pull .txt file over activesync to my pc and then open it up and assign each of those attributes into variables in my application.
output.txt
DEVICE TYPE:SYMBOL MC70
OEM VERSION:05.43.0001
[code]....
I am trying to learn VB.NET and I've written a user entry screen to store and retrieve information. I keep getting this error. I understand that I have to either change the ref value from the calling code, but my problem is where is the calling code? Here is the error I'm getting (the program is underscoring udtTrans in the FileGet line in this segment).
Private Sub viewRecords()
'open the file and read fields of the first record into the textboxes
Try
FileOpen(1, strFilename, OpenMode.Random, OpenAccess.ReadWrite, OpenShare.Shared, Len(udtTrans))
FileGet(1, udtTrans, intCurrentRecord) 'gets first record
[Code] .....
Up to now, my programs are installed in individual computers, and I use the data collected using Win32 classes (such as bios, board, and processor) to lock my program to those computers to avoid piracy. However, I am currently preparing two programs that will be installed in servers and accessed by more client computers. My problem is that I once read some ways of doing the same thing with server (accessing the hardware info of the server), but I simply can't find it again in my archive. My idea is simply to lock the program to the hardware info of the server computer, so wherever the person runs the program, it will be first checked the server hardware info, if it matches, only then, it will run. My client server is Windows Server 2003, and I am programming with VB2k5.
View 1 RepliesImports
System.IO
Imports
System.Windows.Forms
Imports
[CODE]...
I don't understand why nothing is being returned from the SQL)
I am writing a vb program that I want to copy-protect. I need to retrieve some kind of computer ID. I have read what I can on the net, but can not find a suitable solution.It does not need to be incredibly secure. The idea is that the program is not intended for advanced computer users, and needs to be protected from simple sharing.
View 5 Repliesusing vb2005 to write a windows mobile 6 app, need to retrieve data from the sql compact editions database and print info in labels and textbox. i also would like to know how to add the info obtained from a date time picker, radio buttons, and a textbox to load it back into the sql server compact database so that it is updated with new records.
View 3 RepliesHow do I retrieve the computer model information?For example, I have a dell inspiron 1545. How do I retrieve that information in a label? I search a lot of WMI information but can't seem to find it. It SAYS 1545 on my system properties
View 5 RepliesI'm making a database app. I've finish the search, add new, and add function. What I'm trying to do is to expand the functionality of the add new item function.
View 2 RepliesProblem:When my computer restarts my mapped drive appears under My Computer. When I try to use it from code I get errors. If I open the mapped drive by double clicking it, and then try the code, it works. What I discovered is that when my computer starts the status, using net use, is
[code]...