#include "stdafx.h"
#using <mscorlib.dll>
using namespace System;
// 如果SIServerLib.dll文件沒有找到，你需要創建SIServer解決方案，然后執行/Bin
//目錄的CreateTypeLib.bat腳本文件,生成該文件
#using "../bin/SIServerLib.dll"

using namespace System;
using namespace SIServerLib;

using namespace Reflection;		//只用于后期綁定

//這個類用于說明如何進行早期綁定
__gc class CSIEB
{
public:
	//構造函數
	CSIEB()
	{   //創建一個COM組件對象的實例，也就是說生成一個運行態可
		//調用的包裝類，這個類負責組件實例化
		
		pSystemInfo = new CDGetSystemInfo;
	}

	// 返回當前主機的名字
	String* PrintComputerName()
	{
		if (pSystemInfo)
		{
			// 從Com組件服務器獲得主機名
			return String::Concat(S"當前主機的名字為",pSystemInfo->GetMyComputerName());
		}
		else
			return (String*) 0;
	}

private:
	CDGetSystemInfo *pSystemInfo;
};

// Class to demonstrate late binding.
__gc class CSILB
{
public:
	// Constructor
	CSILB()
	{
		// Get Type object for COM server. It uses ProgID of DClock class.
		typ = Type::GetTypeFromProgID("SIServer.DGetSystemInfo");

		// obtain instance of COM object.
		obj = Activator::CreateInstance(typ);

		// Create array of parameters.
		args = new Object*[0];
	}

	// Returns string that has current time.
	// If bAddDate is not 0, it returns date and time,
	// if bAddDate is 0, returns time only.
	String* PrintComputerName()
	{
		if (!typ || !obj)
		return (String*) 0;
		return String::Concat(S"當前主機的名字為",typ->InvokeMember("GetMyComputerName", BindingFlags::InvokeMethod, Type::DefaultBinder, obj,0));
	}

private:
	Type *typ;
	Object *obj;
	Object* args[];
};


// This is the entry point for this application
#ifdef _UNICODE
int wmain(void)
#else
int main(void)
#endif
{
	String *result;

	// Create and use managed C++ class that uses early binding.
	try 
	{
		CSIEB *objEB;
		objEB = new CSIEB();
		result = objEB->PrintComputerName();

		if (result)
			Console::WriteLine(result);
		else
			Console::WriteLine(S"出錯信息: 無法得到主機名字");
	
		// 創建使用一個后期綁定的托管C++類
		CSILB *objLB;
		objLB = new CSILB();
		result = objLB->PrintComputerName();

		if (result)
			Console::WriteLine(result);
		else
			Console::WriteLine(S"出錯信息: 無法得到主機名字");
	}
	catch(Exception* e) 
	{
		Console::WriteLine("錯誤信息： {0}", e->Message);
	}


	Console::Write("\n\n按回車鍵繼續");
	Console::ReadLine();
	return 0;
}