如何在c＃中声明ULARGE_INTEGER？

Question

基于此问题How to declarate LARGE_INTEGER in C#和answer：

[StructLayout(LayoutKind.Absolute, Size=8)]
struct LARGE_INTEGER
{
    [FieldOffset(0)]public Int64 QuadPart;
    [FieldOffset(0)]public UInt32 LowPart;
    [FieldOffset(4)]public Int32 HighPart;
}

我的假设下面是否宣布ULARGE_INTEGER正确吗？

[StructLayout(LayoutKind.Explicit, Size = 8)]
public struct ULARGE_INTEGER
{
    [FieldOffset(0)] public UInt64 QuadPart;
    [FieldOffset(0)] public UInt32 LowPart;
    [FieldOffset(4)] public UInt32 HighPart;
}

Answer 1

它只是C＃中的ulong，无需跳过LayoutKind.Explicit箍。联合是必要的，因为C和C ++编译器在过去的日子里没有原生的64位类型。