dispatchdriver.cpp

Visual_C++[1].NET_Bible1 Visual_C++宝典书中的全部源码

// DispatchDriver.cpp 

#include "stdafx.h"

int _tmain(int argc, _TCHAR* argv[])
{
	CoInitialize(NULL);

	try
	{
		CComDispatchDriver p;
		HRESULT hr = p.CoCreateInstance(L"RobotServer.Robot");
		if (FAILED(hr))
			return 1;

		hr = p.PutProperty(1, &CComVariant(987));
		if (FAILED(hr))
			return 1;

		VARIANTARG v;
		hr = p.GetProperty(1, &v);
		if (FAILED(hr))
			return 1;

		long bl = v.lVal;
		char buf[32];
		wsprintf(buf, "BatteryLife = %d", bl);
		MessageBox(0, buf, "Msg", 0);

		p.Invoke1(L"Speak", &CComVariant(CComBSTR("Hello Automation")));
	}
	catch(_com_error& e)
	{
		MessageBox(0, e.ErrorMessage(), 0, 0);
	}

	CoUninitialize();
	return 0;
}