mytime.h

这是传统的 COM 知识

#pragma once

namespace My
{
	using namespace System::Runtime::InteropServices;
/*类传递
比如，Kernel32.dll中的这个函数
void GetSystemTime(SYSTEMTIME* SystemTime);
SYSTEMTIME定义成类
*/
[StructLayout(LayoutKind::Sequential)]
public __gc class MySystemTime {
    public:
		unsigned short wYear; 
    	unsigned short wMonth;
    	unsigned short wDayOfWeek; 
		unsigned short wDay; 
    	unsigned short wHour; 
    	unsigned short wMinute; 
    	unsigned short wSecond; 
    	unsigned short wMilliseconds; 
};
}