SetEnvironmentVariableFromRegistry()

static unsafe void System.Environment.SetEnvironmentVariableFromRegistry ( string variable, string value, bool fromMachine )

inlinestaticprivate

Definition at line 568 of file Environment.cs.

    {
        if (!fromMachine && variable.Length >= 255)
        {
            throw new ArgumentException(SR.Argument_LongEnvVarValue, "variable");
        }
        using (RegistryKey registryKey = OpenEnvironmentKeyIfExists(fromMachine, writable: true))
        {
            if (registryKey != null)
            {
                if (value == null)
                {
                    registryKey.DeleteValue(variable, throwOnMissingValue: false);
                }
                else
                {
                    registryKey.SetValue(variable, value);
                }
            }
        }
        fixed (char* ptr = &"Environment".GetPinnableReference())
        {
            IntPtr pdwResult;
            IntPtr intPtr = Interop.User32.SendMessageTimeout(new IntPtr(65535), 26, IntPtr.Zero, (IntPtr)ptr, 0, 1000, out pdwResult);
        }
    }

References System.SR.Argument_LongEnvVarValue, Internal.Win32.RegistryKey.DeleteValue(), System.Environment.OpenEnvironmentKeyIfExists(), Interop.User32.SendMessageTimeout(), Internal.Win32.RegistryKey.SetValue(), System.value, and System.IntPtr.Zero.

Referenced by System.Environment.SetEnvironmentVariable().