Reading Registry Key From HKEY_LOCAL_MACHINE That Was Created Via Regedit?
Nov 16, 2011
I try to read a registry key from HKEY_LOCAL_MACHINE that I created with Regedit.I can read a key that already exists. I can't read the key I created.VS2010, Win 7 64-bits, target CPU x86 (ultimately this wil be used in a shared-addin for Office 2010) but CPU x64 gives same result
Dim mystring As String = ""
Dim mykey As RegistryKey = Registry.LocalMachine.OpenSubKey("software", RegistryKeyPermissionCheck.ReadSubTree)
'Dim mykey2 As RegistryKey = mykey.OpenSubKey("testa", RegistryKeyPermissionCheck.ReadSubTree)
I have 26 buttons on my form (each a letter of the alphabet) i want to press a button lets say Z and that it then changes the relevant registry key value of 0 to 1 representing the button has already been clicked (these a-z buttons are to be compared with on/ off switches). This way if I start my program up again the values in the regedit will "memorise" wich buttons were turned on and wich were turned off in our previous program session.
Ultimately the buttons turned off should always appear as red until switched onagain
I am writing an application that connects to a specific com port. This com port can change depending on how many physical ports are on the PC, and if other USB devices have installed com ports before this one.
I have the communication to the com port all working great, but I need to get the com port description not just the "COM#" which is all I currently get.
I found in the registry where the description is stored but am having trouble doing what I need.
there is a varied number of sub keys. The are numbered 0000-NNNN depending on how many ports you have. Inside each of these keys, there are multiple values, although I am only interested in one or 2 of them.
My problem is, that I do not know how to get a list of the subkeys (the 0000-NNNN keys/folders) from the original key I posted. I have looked through a few registry tutorials, and I can view the default value in the listed key, but I could not find how to list the subkeys of the listed key.
Does anyone have any sample code they could share that shows how I can get a listing of subkeys, and then run through those subkeys checking for a specific value in one of the strings contained in the subkey?
I have been googling this and have not come along a working solution for an entire day. I don't know anything about binary data types (as I've never knowingly used them) and I'm trying to write a binary value that I see in the registry, to the registry. Now, all I see is the following [shown below]... and if I try to pass that as a string to the RegSetValueEx in the WinAPI and of course it errors out...
I do not know what 'numbers' I need to pass into the lpData As Any, argument of RegSetValueEx (i tried a bit array) in order for it to come out as the following [shown below] in the regedit. I really have no idea, and my tests to place random numbers in the bit array just produce corresponding random "figures" as visible in regedit that I do not understand how to 'tie' them together logically. here is the culprit!
I'm having troubles reading the values from a registy key, basically I already have my code working which reads back data from a registry key with the name "data" however I also have another key called "data+" and when I attempt to read that the "+" get ignored and it reads back "data" which is in the same location. I have no power of changing the reg key, do I need to convert the + into hex or something like that, if so how do I that and then read it back?
I thought this was simple so i guess i am doing something wrong. want to read the value of an item in the registry.the value im after is the centralprofile key which im trying to get by passing the SID and looking up the subkey but it never returns anything.
my code Function getprofilepath(ByVal SID As String) As String Try
I'm trying to implement code that can determine the value of a registry key dword value and put a check mark in the checkbox depending on if the key exist, does not exist, or equals ffffffff in hex (4294967295 in Decimal).[code]
I need to read a value (and possibly adjust the value) in HKLMSoftwareMicrosoftWindowsCurrentVersionUninstall key on both 32 and 64 bit systems.I've tried accessing 'stuff' by compiling my widget as both a 32 and 64 bit app, but nothing is working. Then I came across some information indicating that this could be done from a 32 bit applicaiton using KEY_WOW64_64KEY [URL] somehow, but I can't figure it out.
1) Check the existing value of HKLMSoftwareMicrosoftWindowsCurrentVersionUninstall{ProductGUID}DisplayVersion handling both architectures.
2) If the value <> "" And <> Our Current Version Then
3) Write the Current Version to the value mentioned in step 1.
I wouldn't think this is that difficult as I've worked with registry before, but the 64 bit stuff is throwing me for a loop.It would be nice if I could compile my app to target AnyCPU then detect where its running on 32 or 64 bit. The app could then look and update in the appropriate location.I currently am set to use .NET 2.0, but could go to 4.0 if there is something in there that makes the above tasks easier.
I'm trying to understand how to get a string from the registry. There are a lot of walkthroughs, and information about retrieving known strings, keys. But what about if the value changes or could be unknown? For example, I wrote some values to the registry:
[Code]....
The txt1.Text information will differ so I can't say it is a definite string. The txt1.Text will be created based on information entered into the form and then it is encrypted. It will be unique to that user, but I want to compare the string in the registry key to one in a textbox on the form.
I have been following tutorial from Bort and writed encrypted string to registry with this
[Code]...
Now I want to read that from registry and get the date witch is encrypted to decrypted to textbox so I can compare it to date.today. How can I get that date from registry. I have used this Tutorial: RSA Encryption in VB.NET and tried to get these trial version tutorials to work together.
What I need is a method to read the registry (completely) and then compare to another, my reasoning for this is so that I can track the changes that happen through programs to the registry so that I can make them portable so that I can code in vb.net on my flashdrive (not really) but it would be pretty useful.
I am trying to get the value of a registry key with the REG_NONE type. MSDN suggests that RegistryKey.GetValue does not support reading of this type, and the default value (Nothing) is returned instead of the actual value.
how do i read from registry, i want my program to do this once u open it it reads the registry for a number 1 means non-active 1.2 means active i its active it bring you to form 2 if not it just stays t form 1
I was just playing around with trying to set up a datacontract that returned a class that had a property that took/returned an enum value. I could set the class up so that it worked great, but the service contract seen by the client had the enum turned into a string, of all things. Had it been turned into an Integer, that would have been useable, but not a string
I have written VB.Net code that will read a users outlook inbox and searches for messages that contain a particular string in the subject line and then move those emails to another folder in outlook.Recently I have had to create a small app that does the same thing except it saves the emails in the .MSG format and places them on the network drive.What I can't figure out is how do I get the outlook object to see the network drive after the fact.
After the emails are saved in the MSG format on the network, I have to create another application that will reside on users computers that will use their outlook to read these files again.I can easily attach to an existing outlook folder and read what is in it but the network drive path is not an outlook folder and never will be.
How can i make and read a registry key? my program creating a registry key (on the first run) and later reading it to see if it is registered or not. any suggestions on how i can manage this?
i do know it goes something like: my.computer.registry.currentuser.createsubkey, but im stuck making it and i have no clue as to where to read it...
--ThrDude--:P If it is not worth it, it is not fun - you say programmers are boring but i say they are worth it.
the following code is not reading the registry on a 64bit server 2008. I don't think that I have it correct and am looking for assistance.
Protected Overrides Sub OnStart(ByVal args() As String) Dim messagestr As String = "" ''first lets read the registry in order to get ip addresses etc..
i need a way to open a offline registry and read the oem info from it. The registry will be from a a hdd from another pc atached to mine. What im trying to accomplish is open the offline registry and read the model/serial info on it. i am able to read the registry of the booted system but no a offline one.
I'm trying to read keys in the HKLM Uninstall section in my attempt to do a software inventory. I tried the WMI, it works but it doesn't show everything. I decided to just read each of the sub keys in the Uninstall section, but it doesn't show everything.
The code works, but it's just not showing some items.
Dim UninstallKey, SubKey As RegistryKey Dim SubUninstallKeyNames() As String UninstallKey = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "\" &
Trying to read a registry key that has a name and a value associated with it. However, the value name doesn't have a name, per say, but it does have a name of (Default).
Anyway, the following lines of code return a value of Nothing. Dim ReadValue As Object = My.Computer.Registry.GetValue _ ("RegKeyName", "(Default)", Nothing) 'Try to use "(Default)" for the name.
However, if I pass empty quotes, as the ValueName, it returns the correct value for the value name. I spent quite alot of time before even thinking of trying it with empty quotes.
Dim ReadValue As Object = My.Computer.Registry.GetValue _ ("RegKeyName", "", Nothing) 'Passing empty quotes for the name.
Is passing the empty quotes the correct way of getting the values from the (Default) value names? I don't want to assume this is going to work in all occasions only to get tripped up later.
What I am trying to do is save a value (from a textbox) to the registry, and later retrieve the same:This is the code (not working) that I have at the moment:My.Computer.Registry.SetValue(My.Application.Info.Title, (TextBox1.Text), "MyFCA")
I want to read 'File.ini' line by line checking if specific text exists in the file and then display on a windows form weather particular settings are turned on or off.So far this code works if "TargetText" exists but if it doenst I get an error on the code line: "If line.Contains("TargetText") Then".
Code:
Using z As System.IO.StreamReader = New System.IO.StreamReader(File.ini") Dim line As String ' Read first line.
[code]....
It works if "TargetText" exists in a line in the file but if it doesnt exist I get the 'Null Reference Exception. Object reference not set to an instance of an object.'
