In order for the NT power manager to interact with the Win32 subsystem (thus the whole rest of the system), the Win32 kernel-mode subsystem provides a mechanism that communicates with the kernel power manager via power callouts (aka power requests as per Windows' PDB symbols).
Such mechanism enters in action as soon as Win32 callout routines are estabilished with the PsEstablishWin32Callouts() function.
The NT power manager, the power policy manager respectively, invokes a power callout to denote an exceptional phenomena as a result of power policies or capabilities changes, turning ON/OFF the display, a system time change has occurred, etc.
Such scenarios are described as power events of which the NT power manager sends a WIN32_POWEREVENT_PARAMETERS packet to Win32k via the estabilished "PowerEventCallout" pointer function callout.
For other callouts that inform the Win32 subsystem of impeding power state changes across the system or devices, these are sent as WIN32_POWERSTATE_PARAMETERS packets with its own separate callout.
The purpose of such mechanism is to give Win32k the opportunity to do power related tasks and alert every application of such power events in accordance with what it gets notified by the NT power manager.
Currently this patch stubplements this mechanism in ROS, it is only just the barebones for now. The development of the Win32 power manager will go in parallel with the kernel power manager development (expand, improve, fix the code of issues that whatever may arise).
So far only the PsW32SystemTime power event is implemented for the moment being. This work was decoupled from PR #5719 to avoid clobbering it too much.
=== TODO ===
- Implement power states management communication with the kernel power manager
- Implement the rest of the power events in IntHandlePowerEventWorker
- Implement power event handling in CSRSS (or WinSrv?) which handles any of the events that could not be handled by Win32k otherwise
- Estabilish the power state callout in PsEstablishWin32Callouts() (currently there is no a pointer function that gets assigned to such callout)
CORE-18969
This value is needed for
SetWindowPlacement and IMM.
JIRA issue: CORE-19675
JIRA issue: CORE-19268
- Add RtlGetExpWinVer function
into win32ss/user/rtl/image.c.
- Add RtlGetExpWinVer prototype
into win32ss/include/ntuser.h.
- Delete RtlGetExpWinVer
definition in
win32ss/user/user32/windows/window.c.
- Populate THREADINFO.dwExpWinVer
and CLIENTINFO.dwExpWinVer
by using RtlGetExpWinVer in
InitThreadCallback function.
Add user32_vista.dll to introduce new NT6+ User32 features without changing the existing User32.dll when compiled as NT5.x. Also implements a stub for GetDpiForWindow(). The GetDpiForWindow() function will be required to Wine-sync common controls to modern Wine versions.
Changes:
Expose GetDpiForWindow() function and USER_DEFAULT_SCREEN_DPI to appropriate versions in winuser.h
Introduce a basic user32_vista library that can be expanded as needed.
The code itself isn't wrong but we're entirely missing the logic needed
to make it work. This leads to spontaneous crashes with video drivers and
various unity games.
- Delete the win32ksvc-ros.h file, which was not used
- Use a separate file for x64 (based on 2k3 x64 free)
- Delete w32ksvc.db. It's unused since ages.
This can be configured in registry with DefaultSettings.XPanning and
DefaultSettings.YPanning, which describe the real screen resolution.
DefaultSettings.XResolution and DefaultSettings.YResolution describe
the resolution of the virtual screen.
Implement a base security infrastructure with code that sets up a security descriptor for the service that we're going to connect through it. Such service is based upon a desktop and a window station.
=== DOCUMENTATION REMARKS ===
The authenticated user, represented by an access token that describes its security context, is the main holder and has ultimate power against the default created desktop and window station objects in USER. The authenticated user in question
is the actual logged in user, this is the case when the server is impersonating a client. Administrators on the other hand have some share of power against default desktop but their power in question is extremely limited against the default
window station as admins can only just enumerate the available and valid handle stations within a desktop.
This will be used (later) to store the list of all enabled display devices.
Add a global variable gpmdev (should really be stored in DISPLAYINFO structure)
Replace global variable gppdevPrimary by pmdev->ppdevGlobal.
in favor of add_compile_options and the like with generator expressions
Also take this as an opportunity to remove the C++11 standard hack, GCC 8 now defaults to C++14
There is no need to compile our DLLs as shared libraries since we are
managing symbols exports and imports through spec files.
On my system, this reduces the configure-time by a factor of two.
