AttachThreadInput failed with access denied from process having standard privilege

[kijato993]

Hi,

I'm having an issue with my application when trying to gain focus on my dialog via the use of SetForegroundWindow and AttachThreadInput. AttachThreadInput failed with error code 5 ("access denied") from process having standard privilege.

My application is running under standard user privileges while another application ( say a notepad, just for an example) with the admin user privilege is running at the foreground.

The following is code what goes on at the end of my OnInitDialog function;

DWORD dwForeProcessId;
DWORD dwForeThreadId = ::GetWindowThreadProcessId:GetForegroundWindow(), &dwForeProcessId);
DWORD dwCurrThreadID = ::GetCurrentThreadId();
if (!::AttachThreadInput(dwForeThreadId, dwCurrThreadID, TRUE))
{
//AttachThreadInput fails with an exit code of 5 here.
TRACE(_T("AttachThreadInput failed on TRUE!! : Error code : %d"), ::GetLastError());
//return FALSE ;
}
//::BringWindowToTop(m_hWnd);
//::ShowWindow(m_hWnd, SW_SHOW);
if (!::SetForegroundWindow(m_hWnd))
{
TRACE(_T("SetForegroundWindow failed!! : Error code : %d"), ::GetLastError());
//return FALSE;
}

if (!::AttachThreadInput(dwForeThreadId, dwCurrThreadID, FALSE))
{
//AttachThreadInput fails with an exit code of 5 here.
TRACE(_T("AttachThreadInput failed on FALSE!! : Error code : %d"), ::GetLastError());
//return FALSE ;
}


Any help would be much appreciated...

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