- 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.
JIRA issue: N/A
- Erase "pT1 = pT1;" self-assignment.
- Add SOFTKBDDATAEX structure as
an extension of SOFTKBDDATA.
- Fix array-bounds warning, by using
SOFTKBDDATAEX.
CORE-19305
Change how WM_VSCROLL is handled to allow higher line counts to be passed to EDIT_WM_VScroll.
Use the GetScrollInfo() function to determine vertical scroll position and pass this to EDIT_WM_VScroll.
---------
Co-authored-by: Jose Carlos Jesus <[email protected]>
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).
Prepare for CTF IME support.
JIRA issue: CORE-19268
- Add GCS_PRIVATE (0x8000) constant,
COMPSTR_PRIVATE structure, and
CtfImmIsGuidMapEnable prototype
to <imm32_undoc.h>.
- Implement GCS_PRIVATE index in
ImmGetCompositionStringA/W.
Improve code readability.
JIRA issue: CORE-19268
- Rename CLIENTIMC_UNKNOWN2
flag as CLIENTIMC_LOCKED.
- Delete unused
CLIENTIMC_UNKNOWN4 flag.
- Fix the return value of
Imm32AssignNewLayout function.
There were some design difference
comparing to Windows. Improve
IME Menu compatibility.
JIRA issue: CORE-20142
- Re-implement IME Menu.
- Modify
ImmPutImeMenuItemsIntoMappedFile
prototype.
SendMessageA for IME message
won't work in some situations.
JIRA issue: CORE-19268
Always use SendMessageW instead of
SendMessageA in ImmGenerateMessage.
CORE-20433
The brush returned from WM_CTLCOLORLISTBOX message is ignored when painting the background. This bug can be found at https://bugs.winehq.org/show_bug.cgi?id=2948
Fixed by handling backgound painting in LISTBOX_PaintItem and LISTBOX_Paint functions.
Patch by @I_Kill_Bugs
One visible case is the setup LiveCD error dialog, where the message box button can appear with a wrong bold/garbled look instead of the normal default-pushbutton appearance.
## Root cause
`win32ss/user/user32/controls/button.c` stores button state with `GetWindowLongPtrW` / `SetWindowLongPtrW`, but the control extra-byte layout was still defined as if the first slot were only `sizeof(LONG)`
On 64-bit builds, that causes the stored state to overlap the cached font, image, and UI-state fields.
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.
Ahmed Arif