MFC怎么设置系统时间。

[女神打Boss]

如题

	CString year, mouth, day, hour, m, s;
	GetDlgItemText(IDC_EDT_YEAR, year);
	GetDlgItemText(IDC_EDT_MOUTH, mouth);
	GetDlgItemText(IDC_EDT_DAY, day);
	GetDlgItemText(IDC_EDT_HOUR, hour);
	GetDlgItemText(IDC_EDT_M, m);
	GetDlgItemText(IDC_EDT_S, s);

	SYSTEMTIME curtime;//声明结构体
	curtime.wYear = _ttoi(year);
	curtime.wMonth = _ttoi(mouth);
	curtime.wDay= _ttoi(day); 
	curtime.wHour= _ttoi(hour);
	curtime.wMinute = _ttoi(m);
	curtime.wSecond = _ttoi(s);
	curtime.wDayOfWeek = 1;

	int res = SetLocalTime(&curtime);
	if (res)
	{
		AfxMessageBox(_T("设置时间成功"));
	} 
	else
	{
		AfxMessageBox(_T("失败"));
	}

我这个代码为什么不行

本人菜笔，求大神详细解答

[paschen]

https://msdn.microsoft.com/en-us/library/ms724936%28v=vs.85%29.aspx If the function succeeds, the return value is nonzero. If the function fails, the return value is zero. To get extended error information, call GetLastError.

[kuankuan_qiao]

The SetLocalTime function enables the SE_SYSTEMTIME_NAME privilege before changing the local time. This privilege is disabled by default.
提升权限

[kuankuan_qiao]

HANDLE           m_hToken;
	TOKEN_PRIVILEGES m_TokenPriv;
	BOOL             m_bTakenPriviledge;

	BOOL bOpenToken = OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | 
		TOKEN_QUERY, &m_hToken);

	m_bTakenPriviledge = FALSE;
	if (!bOpenToken) 
	{
		if (GetLastError() == ERROR_CALL_NOT_IMPLEMENTED) 
		{
			//Must be running on 95 or 98 not NT. In that case just ignore the error
			SetLastError(ERROR_SUCCESS);
			if(!m_hToken)
				CloseHandle(m_hToken);
			return TRUE;
		}
		TRACE(_T("Failed to get Adjust privilege token\n"));
		if(!m_hToken)
			CloseHandle(m_hToken);
		return FALSE;
	}
	ZeroMemory(&m_TokenPriv, sizeof(TOKEN_PRIVILEGES));
	if (!LookupPrivilegeValue(NULL, SE_SYSTEMTIME_NAME, &m_TokenPriv.Privileges[0].Luid))
	{
		TRACE(_T("Failed in callup to lookup privilege\n"));
		if(!m_hToken)
			CloseHandle(m_hToken);
		return FALSE;
	}
	m_TokenPriv.PrivilegeCount = 1;
	m_TokenPriv.Privileges[0].Attributes |= SE_PRIVILEGE_ENABLED;
	m_bTakenPriviledge = TRUE;

	BOOL bSuccess = AdjustTokenPrivileges(m_hToken, FALSE, &m_TokenPriv, 0, NULL, 0);
	if (!bSuccess)
		TRACE(_T("Failed to adjust SetTime privilege\n"));

	if(!m_hToken)
		CloseHandle(m_hToken);

	return bSuccess;

[向立天]

参考http://blog.sina.com.cn/s/blog_4c7fa77b01000at8.html

[赵4老师]

设置系统时间是个危险活计。

[女神打Boss]

这个问题已经很长时间了，但是修改时间还是不成功 结贴算了