🚀 go-pugleaf

"Thom A." <thoma@gmx.at> wrote in message
news:43a15537$1@newsgroups.borland.com...

> HWND hDesktop = OpenInputDesktop(0,false,DESKTOP_READOBJECTS);
>
> returns a valid handle if the desktop is visible or a screen-saver is
> running, but returns hDesktop = 0, when the login screen is shown.

Did you call GetLastError() to find out why?

Also, it is possible for OpenInputDesktop() to fail if the associated
workstation is in the process of shutting down while the user is logging
out.

Also, you did not specify what kind of application is running your code.  If
it is a non-interactive service, for example, then OpenInputDesktop() will
always fail by default since a non-interactive service is not run in the
same workstation as the one that runs the WinLogon desktop.  Only desktops
in the "WinSta0" desktop can receive input, so you would have to use
OpenWindowStation() and SetProcessWorkStation() to put your application into
the "WinSta0" workstation before you can do anything with input-enabled
desktops, such as "WinLogon".

What EXACTLY are you trying to accomplish by detecting the WinLogin screen?


Gambit