Chapter04-获取主机版本系统和验证系统是否是Vista

//打印出系统版本信息
void PrintOSVersionInfo()
{
	//系统版本系统结构体：OSVERSIONINFO
	OSVERSIONINFO  osvi;

	//将其内容置为0，并设置其大小
	ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
	osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);

	//调用该函数获取系统版本信息
	GetVersionEx(&osvi);
	_tprintf(TEXT("dwBuildNumber: %d\n"),osvi.dwBuildNumber);
	_tprintf(TEXT("MajorVersion: %d\n"),osvi.dwMajorVersion);
	_tprintf(TEXT("dwMinorVersion: %d\n"),osvi.dwMinorVersion);
	_tprintf(TEXT("dwPlatformId: %d\n"),osvi.dwPlatformId);
	_tprintf(TEXT("szCSDVersion: %d\n"),osvi.szCSDVersion);
}

//验证系统是否是Vista
void VerifyOSVersionIsVista()
{
	//在osver变量中设置vista对应的版本信息。
	OSVERSIONINFOEX osver;
	osver.dwOSVersionInfoSize = sizeof(osver);
	osver.dwMajorVersion = 6;
	osver.dwMinorVersion = 0;	//验证vista时该值设置为0，验证win7时该值设置为1
	osver.dwPlatformId = VER_PLATFORM_WIN32_NT;
	
	// Prepare the condition mask.
	DWORDLONG dwlConditionMask = 0;// You MUST initialize this to 0.

	//通过VER_SET_CONDITION宏设置要验证的信息掩码
	VER_SET_CONDITION(dwlConditionMask, VER_MAJORVERSION, VER_EQUAL);
	VER_SET_CONDITION(dwlConditionMask, VER_MINORVERSION, VER_EQUAL);
	VER_SET_CONDITION(dwlConditionMask, VER_PLATFORMID, VER_EQUAL);
	
	//调用VerifyVersionInfo函数进行验证。
	if (VerifyVersionInfo(&osver, VER_MAJORVERSION 
		| VER_MINORVERSION | VER_PLATFORMID, dwlConditionMask)) {
			// The host system is Windows Vista exactly.
			_tprintf(TEXT("It is Vista\n"));
	} 
	else 
	{
		// The host system is NOT Windows Vista.
		_tprintf(TEXT("It is not Vista\n"));
	}
}

void main()
{
	
	PrintOSVersionInfo();
	getchar();

	VerifyOSVersionIsVista();
	getchar();
}