C#•2y ago

Trouble reading registry

  string value64 = string.Empty;
  string value32 = string.Empty;

  const string subkey = @"Test";
  const string valueName = "Testvalue";

  RegistryKey localKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64);
  localKey = localKey.OpenSubKey(subkey);
  if (localKey != null)
  {
      value64 = localKey.GetValue(valueName).ToString();
      MessageBox.Show(value64);

  }
  RegistryKey localKey32 = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32);
  localKey32 = localKey32.OpenSubKey(subkey);
  if (localKey32 != null)
  {
      value32 = localKey32.GetValue(valueName).ToString();
      MessageBox.Show(value32);

  }

  string value64 = string.Empty;
  string value32 = string.Empty;

  const string subkey = @"Test";
  const string valueName = "Testvalue";

  RegistryKey localKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64);
  localKey = localKey.OpenSubKey(subkey);
  if (localKey != null)
  {
      value64 = localKey.GetValue(valueName).ToString();
      MessageBox.Show(value64);

  }
  RegistryKey localKey32 = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32);
  localKey32 = localKey32.OpenSubKey(subkey);
  if (localKey32 != null)
  {
      value32 = localKey32.GetValue(valueName).ToString();
      MessageBox.Show(value32);

  }

  string value64 = string.Empty;
  string value32 = string.Empty;

  const string subkey = @"Test";
  const string valueName = "Testvalue";

  RegistryKey localKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64);
  localKey = localKey.OpenSubKey(subkey);
  if (localKey != null)
  {
      value64 = localKey.GetValue(valueName).ToString();
      MessageBox.Show(value64);

  }
  RegistryKey localKey32 = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32);
  localKey32 = localKey32.OpenSubKey(subkey);
  if (localKey32 != null)
  {
      value32 = localKey32.GetValue(valueName).ToString();
      MessageBox.Show(value32);

  }

  string value64 = string.Empty;
  string value32 = string.Empty;

  const string subkey = @"Test";
  const string valueName = "Testvalue";

  RegistryKey localKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64);
  localKey = localKey.OpenSubKey(subkey);
  if (localKey != null)
  {
      value64 = localKey.GetValue(valueName).ToString();
      MessageBox.Show(value64);

  }
  RegistryKey localKey32 = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32);
  localKey32 = localKey32.OpenSubKey(subkey);
  if (localKey32 != null)
  {
      value32 = localKey32.GetValue(valueName).ToString();
      MessageBox.Show(value32);

  }

I'm in a lot of trouble to read a single value from the registry
i've tried various codes snippets but everytime my code just doesnt find the key

RemaetanjuOP•12/28/23, 2:59 AM

I just spent approximately 18h on this problem id like to understand

jcotton42•12/28/23, 3:19 AM

the key is at HKLM\TestHKLM\Test?

RemaetanjuOP•12/28/23, 3:30 AM

the full path where my key is look likes HKEY_CURRENT_USER\\System\\GameConfigStore\\Children\\a31f8397-8996-4a7b-8cb9-8cd47c890c54\\ HKEY_CURRENT_USER\\System\\GameConfigStore\\Children\\a31f8397-8996-4a7b-8cb9-8cd47c890c54\\

RemaetanjuOP•12/28/23, 3:30 AM

The value i want is named MatchedExeFullPathMatchedExeFullPath

jcotton42•12/28/23, 3:31 AM

well, that's not at all what the code you've pasted is looking for
it's looking for HKLM\TestHKLM\Test

RemaetanjuOP•12/28/23, 3:31 AM

both of them wont be present on a helper's computer

jcotton42•12/28/23, 3:31 AM

in any case, what is that key for?

jcotton42•12/28/23, 3:32 AM

might be random per machine since it's a GUID

RemaetanjuOP•12/28/23, 3:32 AM

its a application path

RemaetanjuOP•12/28/23, 3:32 AM

i know its random, but anyway that not THIS specific key that i need

RemaetanjuOP•12/28/23, 3:32 AM

but a way to read 1 registry entry

RemaetanjuOP•12/28/23, 3:39 AM

but if you want the whole story im trying to get a steam game's root folder from registry

jcotton42•12/28/23, 3:43 AM

https://github.com/KSP-CKAN/CKAN/blob/master/Core/Games/KerbalSpaceProgram.cs#L32 this is how CKAN does it

GitHub

CKAN/Core/Games/KerbalSpaceProgram.cs at master · KSP-CKAN/CKAN

The Comprehensive Kerbal Archive Network. Contribute to KSP-CKAN/CKAN development by creating an account on GitHub.

jcotton42•12/28/23, 3:43 AM

seems to look for the Steam install, from there finds the steam game folders from config.vdf, then looks in those for KSP

RemaetanjuOP•12/28/23, 4:07 AM

ok i've made a bit of a progress

RemaetanjuOP•12/28/23, 4:07 AM

im gonna continue coding and show you how it gets

RemaetanjuOP•12/28/23, 4:08 AM

thanks

RemaetanjuOP•12/28/23, 4:16 AM

first problem i see it doesnt detect game if its installed on another disk than steam

jcotton42•12/28/23, 4:16 AM

it should

jcotton42•12/28/23, 4:16 AM

at looks at all the BaseInstallFolder values

jcotton42•12/28/23, 4:16 AM

which I'm pretty sure is all your steam libraries

RemaetanjuOP•12/28/23, 4:20 AM

im looking at it

RemaetanjuOP•12/28/23, 4:23 AM

from your link
line 35 it get steam install path to steamPath variable

then uses KSPDirectory line 43
to combine which i guess to be root install folder of steam + steamapps common and the game name

jcotton42•12/28/23, 4:24 AM

you appear to have skipped the entire bit of code that runs if it fails to find it in the default library

RemaetanjuOP•12/28/23, 4:25 AM

starting at line 50?

jcotton42•12/28/23, 4:25 AM

yes

RemaetanjuOP•12/28/23, 4:25 AM

i got it

RemaetanjuOP•12/28/23, 4:27 AM

i should see every BaseInstallFolder when i'm into the if at line 59 ?

jcotton42•12/28/23, 4:29 AM

seems like it

RemaetanjuOP•12/28/23, 4:31 AM

mmmh
i may be really dumb
i've opened the config.vdf it reads
and it doesnt seems to have my libraryfolder (at least in clear text)
but i know there is the library.vdf file that might come handy

RemaetanjuOP•12/28/23, 4:34 AM

(its been years since i modded ksp, but i had a mere souvenirs of it not find ksp if not on the same disk)

RemaetanjuOP•12/28/23, 4:40 AM

y i confirm in my steam/config/config.vds i dont have the path

jcotton42•12/28/23, 4:40 AM

are you looking for the library path or the game path?

RemaetanjuOP•12/28/23, 4:41 AM

the gamepath
but i dont understand how ckan reconstruct the game path using config.vdf
(for me it seems that all the usefull information it should be using are in config.vdf)

jcotton42•12/28/23, 4:41 AM

lemme check on my steam deck actually

RRemaetanju the gamepath but i dont understand how ckan reconstruct the game path using conf...

jcotton42•12/28/23, 4:42 AM

well that's not what the code is doing
it's looking for library paths, then inside those libraries looking for the game

RemaetanjuOP•12/28/23, 4:42 AM

if (line.Contains("BaseInstallFolder")) if (line.Contains("BaseInstallFolder"))

RemaetanjuOP•12/28/23, 4:43 AM

this line nevers trigger for me

RemaetanjuOP•12/28/23, 4:44 AM

RemaetanjuOP•12/28/23, 4:45 AM

i opened the file line 50

RemaetanjuOP•12/28/23, 4:45 AM

 // Attempt to find through config file
            string configPath = Path.Combine(steamPath, "config", "config.vdf");

 // Attempt to find through config file
            string configPath = Path.Combine(steamPath, "config", "config.vdf");

RemaetanjuOP•12/28/23, 4:46 AM

i should be able to find "BaseInstallFolder" when opening the file right ?

jcotton42•12/28/23, 4:46 AM

oh hm

jcotton42•12/28/23, 4:46 AM

does seem to be in libraryfolders.vdf

jcotton42•12/28/23, 4:47 AM

idk what's up with ckan then

RemaetanjuOP•12/28/23, 4:49 AM

i thought i was crazy x)

RemaetanjuOP•12/28/23, 4:50 AM

but i think i have everything i need
i'll post my code soon

Mayor McCheese•12/28/23, 7:40 AM

Didn't @

ango have some project a while back with steam and install paths and such?

RemaetanjuOP•12/28/23, 11:13 AM

here's what i've came up with:

RemaetanjuOP•12/28/23, 11:13 AM

private static string[] SteamPaths
    => new string[]
    {
        Microsoft.Win32.Registry.GetValue(steamRegKey, steamRegValue, null) as string,
    };


static string GamePath()
{
    // Attempt to get the Steam path.
    string? steamPath = null;

    foreach (var steam in SteamPaths.Where(p => !string.IsNullOrEmpty(p)))
        if (Directory.Exists(steam))
            steamPath = steam;

    if (steamPath == null)
        return null;

    // find game folder through library file
    string librarypath = Path.Combine(steamPath, "config", "libraryfolders.vdf");

    if (File.Exists(librarypath))
    {
        var stream = File.OpenRead(librarypath);
        var kv = KVSerializer.Create(KVSerializationFormat.KeyValues1Text);
        KVObject data = kv.Deserialize(stream);

        int i = 0;
        while (i < data.Count())
        {
            var libraryfolder = data[i.ToString()]["path"];
            var librarygames = data[i.ToString()]["apps"];

            foreach (var game in (IEnumerable<KVObject>)librarygames)
                if (game.Name.Contains(appID))
                    return libraryfolder.ToString() + "\\steamapps\\common\\Lethal Company";
            i++;
        }
    }

private static string[] SteamPaths
    => new string[]
    {
        Microsoft.Win32.Registry.GetValue(steamRegKey, steamRegValue, null) as string,
    };


static string GamePath()
{
    // Attempt to get the Steam path.
    string? steamPath = null;

    foreach (var steam in SteamPaths.Where(p => !string.IsNullOrEmpty(p)))
        if (Directory.Exists(steam))
            steamPath = steam;

    if (steamPath == null)
        return null;

    // find game folder through library file
    string librarypath = Path.Combine(steamPath, "config", "libraryfolders.vdf");

    if (File.Exists(librarypath))
    {
        var stream = File.OpenRead(librarypath);
        var kv = KVSerializer.Create(KVSerializationFormat.KeyValues1Text);
        KVObject data = kv.Deserialize(stream);

        int i = 0;
        while (i < data.Count())
        {
            var libraryfolder = data[i.ToString()]["path"];
            var librarygames = data[i.ToString()]["apps"];

            foreach (var game in (IEnumerable<KVObject>)librarygames)
                if (game.Name.Contains(appID))
                    return libraryfolder.ToString() + "\\steamapps\\common\\Lethal Company";
            i++;
        }
    }

Trouble reading registry

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