Vb.net 在Visual Basic.NET中为无符号整数分配物理内存？

比如说,

对于integer，我们分配一些内存并获取其地址：

Dim MyPointer As IntPtr =   Marshal.AllocHGlobal(4)

Marshal.WriteInt32(MyPointer, 255)

对于字符串

Dim MyStrPointer As IntPtr = Marshal.StringToHGlobalAuto("Hello World")

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类似地，我希望为无符号整数（UInt32）分配内存。

无符号整数与其他.Net数值类型一样，都是结构，因此可以使用Marshal.StructureToPtr和Marshal.PtrToStructure封送

Dim origUI32 As UInt32 = UInt32.MaxValue
Dim MyPointer As IntPtr = Marshal.AllocHGlobal(Marshal.SizeOf(origUI32))
Marshal.StructureToPtr(origUI32, MyPointer, True)

Dim retrievedUI32 As UInt32 = DirectCast(Marshal.PtrToStructure(MyPointer, GetType(UInt32)), UInt32)
Marshal.FreeHGlobal(MyPointer)
Debug.Assert(retrievedUI32 = origUI32) 

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与其他.Net数值类型一样，无符号整数也是结构，因此可以使用Marshal.StructureToPtr和Marshal.PtrToStructure封送

Dim origUI32 As UInt32 = UInt32.MaxValue
Dim MyPointer As IntPtr = Marshal.AllocHGlobal(Marshal.SizeOf(origUI32))
Marshal.StructureToPtr(origUI32, MyPointer, True)

Dim retrievedUI32 As UInt32 = DirectCast(Marshal.PtrToStructure(MyPointer, GetType(UInt32)), UInt32)
Marshal.FreeHGlobal(MyPointer)
Debug.Assert(retrievedUI32 = origUI32)