main.cpp

这是一个控制台程序

//*****************************************************************************
//
// Microsoft Windows Media
// Copyright (C) Microsoft Corporation. All rights reserved.
//
// FileName:            main.cpp
//
// Abstract:            This sample shows properties on a Windows Media file: 
//						Number of streams, codec, protected, bitrate, stream number,
//						seekable, and stridable.
//
//*****************************************************************************

#include "ListProps.h"

///////////////////////////////////////////////////////////////////////////////
void usage(void)
{
	_tprintf(_T("WMProp <infile>\n"));
	_tprintf(_T("infile = Input Windows Media file for which properties are sought\n"));
}

int __cdecl _tmain( int argc, TCHAR* argv[] )
{
	if( argc != 2 )
	{
		usage();
		MessageBox(NULL, "Running ternimated.", "ListProps", MB_OK);
		return( -1 );
	}

	HRESULT hr = S_OK;
	hr = CoInitialize(NULL);
	if (FAILED(hr))
	{
		_tprintf(_T("CoInitialize failed: (hr=0x%08x)\n"), hr);
		return hr;
	}

	CWMProp wmProp(&hr);
	if (FAILED(hr))
	{
		_tprintf(_T("Internal error %lu\n"), hr);
		return hr;
	}

#ifndef UNICODE		//
					//	Unicode implementation
					//

	WCHAR wszFileName[MAX_PATH];

	//
	//	Check to ensure a buffer over run does not occur
	//
	if (_tcslen(argv[1]) < MAX_PATH)
	{
		if (0 == MultiByteToWideChar(CP_ACP, 0, argv[1], _tcslen(argv[1]) + 1, wszFileName, MAX_PATH))
		{
			_tprintf(_T("Internal error %lu\n"), GetLastError());
			return E_UNEXPECTED;
		}
		hr = wmProp.Open(wszFileName);
	}
	else
	{
		_tprintf(_T("File name argument is too long.\n"));
		return E_INVALIDARG;
	}

#else	//
		//	Non-Unicode implementation
		//

	if (_tcslen(argv[1]) < MAX_PATH)
	{
		hr = wmProp.Open(argv[1]);
	}
	else
	{
		_tprintf(_T("File name argument is too long.\n"));
		return E_INVALIDARG;
	}

#endif // UNICODE

	CoUninitialize();

	MessageBox(NULL, "Running ternimated.", "ListProps", MB_OK);
	return hr;
}