C＃ - 如何编组LPWSTR数组？(C# - how to marshal an array of LPWSTR?)

 我试图编组一个类似于以下内容的c ++结构： 
 
typedef struct _SOME_STRUCT
{
     DWORD count;
     LPWSTR *items;
}
 
 “items”是LPWSTR的数组（确切的数字由“count”表示）。 在C＃中，我将结构表示为： 
 
[StructLayoutAttribute(LayoutKind.Sequential)]
internal struct SOME_STRUCT
{    
     internal uint count;
     internal IntPtr items;
}
 
 然后在我的代码中我正在做这样的事情（其中mystruct的类型为SOME_STRUCT）： 
 
if (mystruct.count > 0)
{
    for (int x = 0; x < mystruct.count; x++)
    {
        IntPtr ptr = new IntPtr(mystruct.items.ToInt64() + IntPtr.Size * x);
        string item = Marshal.PtrToStringAnsi(Marshal.ReadIntPtr(ptr));
    }
}
 
 计数是正确的，但字符串项出现乱码。 我确信我必须做一些愚蠢的事情，因为我之前已经使用过其他类型的数组...而不是LPWSTR。 

I am trying to marshal a c++ struct that looks like the following:
 
typedef struct _SOME_STRUCT
{
     DWORD count;
     LPWSTR *items;
}
 
"items" is an array of LPWSTR's (the exact number is indicated by "count"). In C# I am representing the struct as:
 
[StructLayoutAttribute(LayoutKind.Sequential)]
internal struct SOME_STRUCT
{    
     internal uint count;
     internal IntPtr items;
}
 
Then in my code I am doing something like this (where mystruct is of type SOME_STRUCT):
 
if (mystruct.count > 0)
{
    for (int x = 0; x < mystruct.count; x++)
    {
        IntPtr ptr = new IntPtr(mystruct.items.ToInt64() + IntPtr.Size * x);
        string item = Marshal.PtrToStringAnsi(Marshal.ReadIntPtr(ptr));
    }
}
 
The count is correct, but the string item is coming out garbled. I'm sure I must be doing something daft as i've had this work before with arrays of other types...just not LPWSTR.

原文：https://stackoverflow.com/questions/6234739