This change is similar to what is done in UserChangeDisplaySettings()
after changing screen video mode.
This allows e.g. having windows to be correctly maximized during
2nd-stage GUI setup. To compare and reproduce during 2nd-stage GUI
setup, open cmd.exe (Shift-F10) and from there a GUI app, e.g.
regedit.exe, and maximize it. Observe the limits used by the window.
- NtUserOpenInputDesktop: Don't crash if there is no input desktop yet
- NtUserOpenInputDesktop: Fail if the process doesn't belong to the interactive window station
- NtUserCreateWindowStation: Clear error on success
- DesktopWindowProc: Use UserOpenInputDesktop to get a handle to the input desktop
- Add UserCreateSystemThread function that will signal csrss to create a new system thread.
- NtUserCreateWindowStation: Create the raw input thread and the desktop thread when the IO window station gets created.
- IntMakeHungWindowGhosted: Create the ghost system thread that will own all ghost windows.
- Let the raw input thread manage the window station of csrss.
[USERSRV] Remove system threads creating hack
- Implement SrvCreateSystemThreads
- Don't create the system threads in UserServerDllInitialization.
CORE-11933 and PR #621.
We are potentially going to modify the window station name to be
created or opened, by one with the format "Service-0x<luidhigh>-<luidlow>$",
in case the user provides an empty name.
Since we want to use the user-mode ObjectAttributes structure pointer so
that the Object manager can correctly perform the access checks and the
capture, we actually need to construct the new window station name in the
user memory space! This allows us then to fetch the new name in the
ObjectAttributes structure so that Ob can use it.
All of this is performed under SEH.
For NtUserOpenWindowStation(), we also need to be Windows-compatible and
detect whether user-mode gave instead the special "Service-0x00000000-00000000$"
name (observed via API monitoring) that is used when one tries to open a
window station with empty name.
CORE-11933 and PR #621.
- Remove the related hack-FIXMEs;
- Adjust NtUserGetObjectInformation() in accordance.
- Retrieve the window-station/desktop object type string in NtUserGetObjectInformation()
also from the NT Object's header.
Also simplify the UOI_FLAGS case of NtUserGetObjectInformation() by reading
the handle inheritance information directly from the OBJECT_HANDLE_INFORMATION
structure returned by ObReferenceObjectByHandle().
Also, improve NtUserSetWindowStationUser() capture order, make psid optional as it should (and avoid a user-mode triggered BSOD), and initialize luidUser only when everything succeeded.
CORE-13447 CORE-14422
This fixes closing nLite 1.4.9.3 (.NET2) application, as well as any
other program that expects that the interactive window station is
reported as being visible. I thank Mark Jansen and Joachim Henze for
help and testing.
