public static void Call_Get()
{
var list = new List <MyIntroStruct>();
//call SetMyIntroStruct
var size = Marshal.SizeOf(typeof(MyIntroStruct));
IntPtr ptr = IntPtr.Zero;
//分配大小
int count = 1;
GetMyIntroStruct(ptr, ref count);
if (count > 0)
{
ptr = Marshal.AllocHGlobal(count * size);
}
if (ptr != IntPtr.Zero)
{
GetMyIntroStruct(ptr, ref count);
}
for (int i = 0; i < count; i++)
{
IntPtr p = IntPtr.Add(ptr, i * size);
MyIntroStruct mm = (MyIntroStruct)Marshal.PtrToStructure(p, typeof(MyIntroStruct));
list.Add(mm);
}
Marshal.FreeHGlobal(ptr);
var res = new List <MyIntroStruct2>();
list.ForEach(s =>
{
MyIntroStruct2 s2;
Convert(s, out s2);
res.Add(s2);
});
}
public static int Convert(MyIntroStruct s1, out MyIntroStruct2 s2)
{
s2 = new MyIntroStruct2();
s2.BB = s1.B;
s2.C = s1.C;
s2.CharsA = Utf8ToString(s1.CharsA);
s2.CharsB = Utf8ToString(s1.CharsB);
return(0);
}
public static void Call_Set()
{
IntPtr ptr = IntPtr.Zero;
ptr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(MyIntroStruct)));
MyIntroStruct ms = new MyIntroStruct();
ms.B = false;
ms.C = 998;
ms.CharsA = StringToUTF8Inptr("123456789");
ms.CharsB = IntPtr.Zero;
//ms.CharsB = StringToUTF8Inptr("KKKK");
Marshal.StructureToPtr(ms, ptr, true);
SetMyIntroStruct(ptr, 9);
Marshal.FreeHGlobal(ptr);
Marshal.FreeHGlobal(ms.CharsA);
Marshal.FreeHGlobal(ms.CharsB);
}