C# Definition:

[Flags]
public enum EFIPartitionAttributes : ulong
{
     GPT_ATTRIBUTE_PLATFORM_REQUIRED = 0x0000000000000001,
     LegacyBIOSBootable = 0x0000000000000004,
     GPT_BASIC_DATA_ATTRIBUTE_NO_DRIVE_LETTER = 0x8000000000000000,
     GPT_BASIC_DATA_ATTRIBUTE_HIDDEN = 0x4000000000000000,
     GPT_BASIC_DATA_ATTRIBUTE_SHADOW_COPY = 0x2000000000000000,
     GPT_BASIC_DATA_ATTRIBUTE_READ_ONLY = 0x1000000000000000
}

VB Definition:

Enum EFIPartitionAttributes
   TODO
End Enum

Notes:

None.