- Use shared locks for the display device and PDEV lookup paths.
These functions only walk existing lists and take references, while list updates
and mode-switch paths still use exclusive locking.
This avoids serializing read-only display queries unnecessarily.
- Use shared locks for other read-only NtUser calls.
Some win32k syscalls were still taking the exclusive user lock even though they only read existing state.
This switches a few simple query paths to the shared user lock instead: foreground window lookup, IME hotkey/context queries, layered window attributes, and title bar info.
The goal is to avoid taking the writer lock for read-only work while keeping the same behavior.
Fix the bug, where `NtUserMenuItemFromPoint()` returned `cItems` instead of `NO_SELECTED_ITEM`
when no item is under the point (`mi` is never NULL on a miss), so `MenuItemFromPoint()` callers
could have indexed one past the menu array.
As soon as `ObCreateObject()` is successfully invoked, zero-out the winsta
and desktop object buffers and assign them the current process session ID
(into their first `dwSessionId` member). Only then, continue with regular
initialization.
It's done in this systematic way in order to ensure that, in case the
regular initialization of these objects fails and `ObDereferenceObject()`
is invoked, the `nt!ExpWin32SessionCallout()` routine (in `ntoskrnl/ex/win32k.c`)
that is executed as part of the Win32 "delete" object callback registered
by win32k.sys with the Object Manager, correctly finds a valid initialized
`SessionId` value in the "common header" of either the window station
or the desktop object being deleted.
As a side-result, other parts of win32k can directly refer to
`pdesk->dwSessionId` instead of `pdesk->rpwinstaParent->dwSessionId`
for a given desktop.
- Don't use `NtCurrentPeb()` to retrieve the current process session ID,
but `PsGetCurrentProcessSessionId()` instead that doesn't require a PEB.
- Turn the purposely-leaking local `hWinstaDir` variable into a global
`ghWinStaDir` variable, so that when win32k.sys unloading support will
be implemented, one could close `ghWinStaDir` so as to delete the per-
session window-station object directory.
(It isn't created as an `OBJ_PERMANENT` object for this reason.
See comment https://github.com/reactos/reactos/pull/621#discussion_r196303521
in PR #621.)
This hack was introduced in commit 89d0892531 (r6908) to automatically
assign, on kernel-side, the created window as the "current" desktop window,
when it was the first one to be created for the given desktop.
This was necessary back when Win32 desktop windows were managed on
CSRSS side (via the ReactOS-specific `win32csr/desktopbg.c` module).
Since the introduction of the `winsrv` module, and the move of desktop
windows management into Win32k in commit 765f09416d (r57632), see also
CORE-6723, this hack isn't needed anymore because the same sequence
of actions is done by `IntCreateDesktop()`, just after creating the
desktop window.
The call to `IntDefWindowProc()` in the desktop window procedure
`default` case, was disabled in commit ff31610bfb (r68908), because
of a supposed "painting message regression", probably related at
that time to a previous commit 6dfa71c487 (r68904) and CORE-7797.
This isn't relevant anymore.
This fixes the mismatch, where the flush checks wrongly tested `mi.dwFlags` (`MOUSEEVENTF_XDOWN/XUP`) against the raw `MOUSE_BUTTON_4/5` bits, so the combined button-4+5 events were flushed in the wrong block or were dropped.
Follow-up of #8846. Now <jpnvkeys.h>
is useless. Minor refactoring and
standardation.
JIRA issue: CORE-19268
- Replace <jpnvkeys.h> usage with
<wine/ime.h> and fix
VK_DBE_ENTERIMECONFIGMODE
naming.
- Remove duplicated
WM_IME_REPORT/IR_* and
UNDETERMINESTRUCT definitions
now provided by wine/ime.h.
- Introduce win3send.c half-
implementing
ImmSendIMEMessageExA/W.
- Add CMake option
IMM_WIN3_SUPPORT (default: ON).
Supplements commit cac013abef (PR #8104).
CORE-5680
The `EnableHexNumpad` string value is specified in the
`HKEY_CURRENT_USER\Control Panel\Input Method` registry key.
When enabled, the user can enter codepoints in hexadecimal form, using:
- `Alt .xxx` ('dot' prefix), for current ANSI codepage (ACP) codepoints;
- `Alt +xxx` ('plus' prefix), for Unicode codepoints.
These two modes complement the known `Alt xxx` and `Alt 0xxx` decimal forms
for entering codepoints in the current OEM or ACP codepage, respectively.
Follow-up of #8678. Commonize the definition of
LANGID_... values.
JIRA issue: CORE-20243
- Define LANGID_... values for CJK in <cjkcode.h> and
use it.
Ensure we dereference the same parent window object after a user-mode callback. We cache spwndParent in a local before sending messages so a parent change during the callback no longer trips the LIFO reference check.
- Capture the parent window in a local in IntDefWindowProc (WM_APPCOMMAND) and IntSendParentNotify.
- Use the local for UserRefObjectCo, co_IntSendMessage, and UserDerefObjectCo to prevent object mismatches when the parent changes mid-callback.
CORE-17331
Pass it to EXLATEOBJ_vInitXlateFromDCsEx, which uses it (or, if it's CLR_INVALID, the source DC's background color) to initialize the EXLATEOBJ.
Adjust all callers to pass CLR_INVALID instead of 0.
Enable IMM mode and reduce
imm32_apitest failures.
JIRA issue: CORE-19268
- Enable LoadIMM registry setting.
NOTE: We have already DontLoadCTFIME
setting to avoid loading CTF IME.
Supporting CTF IME will be future work.
Fix SAL2 annotations of the IME hot-key functions.
JIRA issue: N/A
- Add ImmGetHotKey and ImmSetHotKey prototypes
into <imm32_undoc.h>.
- Fix CliImmSetHotKey annotation in user32 and
<undocuser.h>.
- Also fixes ImmSetHotKey, NtUserGetImeHotKey and
NtUserSetImeHotKey annotations.
Like with all the other win32k NtUser* functions, acquire on entry and
release on exit the global lock, since the function is reading/writing
to global variables.
Also, set the last-error to ERROR_ACCESS_DENIED if the caller isn't the
registered logon process.
One more step to support ghost windows.
JIRA issue: CORE-19671
- Add IntForceMinimizeWindow helper
function.
- Use IntForceMinimizeWindow in
co_WinPosShowWindow function.
- Enhance ShowWindow testcase in
user32_apitest.
- Add mask to the return value of
GetWindowLong.
Fix BSoD when toggling visibility of the IME status
window (IME Toolbar).
JIRA issue: CORE-20261
- Add IntGetImeUIFromWnd helper function.
- Fix exception in IntNotifyImeShowStatus function.
- Fix initialization of IME UI in ImeWndProc_common
function.
- Delete RegisterIMEClass function.
The following code in user32_winetest scroll.c was causing it:
ret = EnableScrollBar( mainwnd, SB_CTL, ESB_ENABLE_BOTH );
ok( !ret, "EnableScrollBar should fail.\n" );
This PR resolves a bug of #8094. #8094
correctly validates the flags. TPM_SYSTEM_MENU is an internal flag
and not a valid flag for TrackPopupMenu.
Thus, calling TrackPopupMenu.TPM_SYSTEM_MENU
in User32DefWindowProc was wrong.
This caused failure of taskbar context
menu.
JIRA issue: CORE-20238
- Move WM_POPUPSYSTEMMENU
message handling of user32 into
win32k.sys!IntDefWindowProc.
- Use win32k.sys!IntTrackPopupMenuEx
instead of user32!TrackPopupMenu
in handling of WM_POPUPSYSTEMMENU.
Improve CTF IME customization.
Use the proper names for CTF IME.
JIRA issue: CORE-19268
- In the registry key "HKLM\SOFTWARE\Microsoft\
Windows NT\CurrentVersion\IMM", add
DontLoadCTFIME value and set it to 1.
- Delete LoadCTFIME value to avoid user
confusing.
- Rename UserIsCiceroEnabled function
as UserIsCTFIMEEnabled.
- Rename SRVINFO_CICERO_ENABLED
flag as SRVINFO_CTFIME_ENABLED.
Validate flags.
JIRA issue: CORE-3247
- In NtUserTrackPopupMenuEx function, validate the flags.
- If validation failed, then set last error and return FALSE.
- Add SAL annotations to NtUserTrackPopupMenuEx.
- Keep reference to menu in the function.
- Add TrackPopupMenuEx testcase to user32_apitest.
Validate structure size.
JIRA issue: CORE-3247
- In IntTrackPopupMenuEx function,
if lpTpm was non-NULL, then
validate lpTpm->cbSize.
- If validation failed, then set last
error and return FALSE.
- Remove duplicated code in NtUserRegisterHotKey() and in
NtUserUnregisterHotKey() by directly calling UserRegisterHotKey()
and UserUnregisterHotKey() after the usual user-validation steps.
- In UserRegisterHotKey(), ignore hotkeys with virtual key VK_PACKET
since this is not a real keyboard input, but is instead used in
conjunction with unicode characters to simulate keystrokes for
non-keyboard input methods.
- s/StartDebugHotKeys/SetDebugHotKeys/
- Remove duplicate code between NtUserCallMsgFilter() and IntCallMsgFilter().
Refactoring and improving trace.
JIRA issue: CORE-19455
- Add SAL2 annotations to
function parameters.
- Add and improve tracing
(TRACE and ERR) for easier
debugging.
Ahmed Arif