internal SystemEnvironmentValue(SafeStructureInOutBuffer <SystemEnvironmentValueNameAndValue> buffer)
{
SystemEnvironmentValueNameAndValue value = buffer.Result;
Name = buffer.Data.ReadNulTerminatedUnicodeString();
Value = buffer.ReadBytes((ulong)value.ValueOffset, value.ValueLength);
Attributes = value.Attributes;
VendorGuid = value.VendorGuid;
}
/// <summary>
/// Query all system environment value names and values.
/// </summary>
/// <returns>A list of names of environment values</returns>
public static IEnumerable <SystemEnvironmentValue> QuerySystemEnvironmentValueNamesAndValues()
{
using (var buffer = EnumEnvironmentValues(SystemEnvironmentValueInformationClass.NamesAndValues))
{
int offset = 0;
int size_struct = Marshal.SizeOf(typeof(SystemEnvironmentValueNameAndValue));
while (offset <= buffer.Length - size_struct)
{
var struct_buffer = buffer.GetStructAtOffset <SystemEnvironmentValueNameAndValue>(offset);
SystemEnvironmentValueNameAndValue name = struct_buffer.Result;
yield return(new SystemEnvironmentValue(struct_buffer));
if (name.NextEntryOffset == 0)
{
break;
}
offset = offset + name.NextEntryOffset;
}
}
}
