如何从C#中的byte []得到的IntPtrbyte、IntPtr

2023-09-02 01:28:52 作者:健猪小蜜子

我想通过一个字节[] 在C#中的方法需要一个的IntPtr 参数,是可能的怎么样?

I want to pass a byte[] to a method takes a IntPtr Parameter in C#, is that possible and how?

推荐答案

不知道有关获取一个IntPtr到一个数组,但你可以通过使用Mashal.Copy复制数据与非托管code使用:

Not sure about getting an IntPtr to an array, but you can copy the data for use with unmanaged code by using Mashal.Copy:

IntPtr unmanagedPointer = Marshal.AllocHGlobal(bytes.Length);
Marshal.Copy(bytes, 0, unmanagedPointer, bytes.Length);
// Call unmanaged code
Marshal.FreeHGlobal(unmanagedPointer);

另外,您可以用一个属性声明一个结构,然后用Marshal.PtrToStructure,但仍需要分配非托管内存。

Alternatively you could declare a struct with one property and then use Marshal.PtrToStructure, but that would still require allocating unmanaged memory.

编辑:同时,作为Tyalis指出的那样,你也可以使用的固定的,如果不安全code是一个选择

Also, as Tyalis pointed out, you can also use fixed if unsafe code is an option for you