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[host] make DXGI detect the secure desktop and wait

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While we can't interact with UAC and CTL+ALT+DEL stuff, we can alteast
wait around for it to return so we can re-init and continue to stream.
This commit is contained in:
Geoffrey McRae 2017-11-04 06:11:24 +11:00
parent 00c96a7dec
commit 1975bc13bc
1 changed files with 14 additions and 2 deletions
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16
host/Capture/DXGI.cpp
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@ -263,12 +263,24 @@ bool DXGI::GrabFrame(FrameInfo & frame)
case DXGI_ERROR_ACCESS_LOST: // desktop switch, mode change or switch DWM on or off
case WAIT_ABANDONED: // this can happen also during desktop switches, not documented by MS though
{
// see if we can open the desktop, if not the secure desktop
// is active so just wait for it instead of aborting out
HDESK desktop = NULL;
while(!desktop)
{
desktop = OpenInputDesktop(0, TRUE, GENERIC_READ);
if (desktop)
break;
Sleep(100);
}
CloseDesktop(desktop);
if (!ReInitialize())
{
DEBUG_ERROR("Failed to re-initialize after access was lost");
DEBUG_ERROR("Failed to ReInitialize after lost access to desktop");
return false;
}
continue;
break;
}
default: