.NET - Copy from Unmanaged Array to Unmanaged Array

Question

I've been looking through the Marshal class, but I can't seem to find a method that allows me to copy from an unmanaged array (IntPtr) to another unmanaged array (IntPtr).

Is this possible using .NET?

Answer 1

You can also DllImport RtlMoveMemory to get the job done:

[DllImport("Kernel32.dll", EntryPoint="RtlMoveMemory", SetLastError=false)]
static extern void MoveMemory(IntPtr dest, IntPtr src, int size);

This will also require FullTrust, however, but as you are working with unmanaged code, I'd expect you already have it.

Answer 2

您可以恢复使用C＃中的不安全代码 （如果这是一个选项）（通常需要FullTrust权限，可能并非在所有情况下都可用）。