1. 调Win API,先获取权限。
bool Widget::getPrivilege()
{
HANDLE hToken;
TOKEN_PRIVILEGES tkp;
// Get a token for this process.
if (!OpenProcessToken(GetCurrentProcess(),
TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
{
qDebug()<<"OpenProcessToken Error.";
return false;
}
// Get the LUID for the shutdown privilege.
LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,
&tkp.Privileges[0].Luid);
tkp.PrivilegeCount = 1; // one privilege to set
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
// Get the shutdown privilege for this process.
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,
(PTOKEN_PRIVILEGES)NULL, 0);
// Cannot test the return value of AdjustTokenPrivileges.
if (GetLastError() != ERROR_SUCCESS)
{
qDebug()<<"AdjustTokenPrivileges Error.";
return false;
}
return true;
}
2. 再调ExitWindowsEx(EWX_SHUTDOWN | EWX_FORCE, 0),就可以关机了,注销、重启改下参数也一样。