如何在 C# 中声明 ULARGE_INTEGER？

Question

基于这个问题How to declarate LARGE_INTEGER in C# 和answer 的：

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

我在下面声明ULARGE_INTEGER 的假设是否正确？

[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

它只是一个C#中的ulong，不需要跳过LayoutKind.Explicit箍。联合是必要的，因为 C 和 C++ 编译器在过去没有原生 64 位类型。