- Use SendMessageTimeout instead of SendMessage.
- Use SwitchToThisWindow instead of BringWindowToTop.
- Use ShowWindowAsync instead of ShowWindow.
- Use SWP_ASYNCWINDOWPOS for SetWindowPos.
CORE-17894
This reverts commit ecf3416f49.
This commit was meant to fix CORE-17688. While its effectively fixed
the problem, it introduced another regression CORE-17719.
In the mean time, commit c05a45e17e fixed
things properly.
CORE-17719
- Add IntIsWindowFullscreen function to judge whether the window is fullscreen.
- Add IntCheckFullscreen function to notify HSHELL_RUDEAPPACTIVATE if fullscreen.
- Add IntCheckFullscreen call in UpdateShellHook function.
- Add IntCheckFullscreen call in co_WinPosSetWindowPos function.
CORE-16130
- Extend PATH_WidenPath function as PATH_WidenPathEx with the path argument.
- Use PATH_WidenPathEx and PATH_FillPathEx functions to implement wide pen drawing in PATH_StrokePath function.
- Add the code to IntGdiLineTo, IntRectangle, IntGdiPolygon, and IntGdiPolyline in order to stroke the path when the effective wide pen.
FIXME: Boundary rectangle.
CORE-2527, CORE-8366
This became a requirement, following a previous CMake update.
Otherwise the built EXEs would not export their intended functions.
Addendum to commit d8e92b5a (see PR #1335)
CORE-15406
[LOADCONFIG] The GCC rant had nothing to do with GCC, but everything with CMake...
[SPOOLSV] Add the missing exported stubs.
It actually should look like '\\.\DISPLAY<n>' (since it comes from user mode),
which the function expects, and not '\\Device\\Video<n>', like done in the
kernel mode. Otherwise, passing wrong name causes a mismatch.
Fix the problem with video device access (failure with status 0xc0000022 when
trying to open it). Hence, it also fixes the following debug log spam:
'err: Could not open device \Device\Video0, 0xc0000022'.
Addendum to 77e891b8. CORE-17719 CORE-17786
GTK applications call GetQueueStatus(QS_ALLINPUT), where QS_ALLINPUT
specifies the QS_RAWINPUT flag as well, when these are compiled for
Windows XP+, and they expect the call to succeed on this platform.
On one side, ReactOS does not currently support this flag at all, but
since it claims to be XP/2003-compatible, applications may implicitly
expect the flag to be supported by GetQueueStatus() and the function
*NOT* failing when this flag is set.
(Later GTK apps don't care and just call GetQueueStatus(QS_ALLINPUT)
that includes QS_RAWINPUT, and therefore would fail as well on e.g.
Windows 2000...)
Otherwise, an observable effect is that some versions of libgdk-win32-2.0.0.dll
enter into an infinite loop when calling GetQueueStatus(QS_ALLINPUT),
since this call always failed on ReactOS.
On the other side, however, we should honour our winetests that handle
the presence of the QS_RAWINPUT flag and behave differently accordingly.
But since we do not support QS_RAWINPUT yet, we should keep their old
behaviour where QS_RAWINPUT is unused.
Thus, in order to accomodate both sides, we don't fail the GetQueueStatus()
call, but just set the ERROR_INVALID_FLAGS last error and continue it.
This fixes CORE-15686, CORE-17551 and probably CORE-11850.
Fixes also all user32:TrackMouseEvent tests.
Co-authored-by: Hermès BÉLUSCA - MAÏTO <hermes.belusca-maito@reactos.org>
This prevents the tracking menu from erroneously closing itself right after it was opened in some cases.
Fixes CORE-17338 which got unhidden by 0.4.15-dev-1126-g 58b0558f94
And fixes CORE-15760 which got unhidden by SVN r74972 == git 19dd22d422
Since both symptoms look very similar but the unhiding revisions did differ,
that could mean we do have some kind of race condition here.
I guess this fix is more like a workaround. I do intend to port it back nevertheless.
As we are a non PNP driver, the call chain will be
DriverEntry -> VidePortInitialize -> VideoPortFindAdapter -> HwFindAdapter.
If legacy resources are available, we will fail VGAFindAdapter,
so DriverEntry will fail, so vgamp.sys driver won't be used.
CORE-17789
- Rewrite ImmGetImeMenuItemsA and ImmGetImeMenuItemsW functions.
- Add Imm32GetImeMenuItemsAW, Imm32IsImcAnsi, Imm32ImeMenuAnsiToWide and Imm32ImeMenuWideToAnsi helper functions.
- Make IME module's ImeGetImeMenuItems function optional.
CORE-11700
Sync/Port: Metafile code from wine.
Patches by Jacek Caban, Daniel Lehman, Zhiyi Zhang. Gabriel Ivancescu, Michael Stefaniuc, Francois Gouget, Nikolay Sivov Dmitry Timoshkov, Andrew EiKum, Piotr Caban and Alexandre Julliard.
This commit is dedicated to George Bisoc!
This is an addendum to
0.4.15-dev-3174-g dda9c3979e CORE-17769 and
0.4.15-dev-3147-g 3bf7e3ac13 CORE-17754 CORE-17755
We have not seen this happening in real-life yet, but some code-fragments within co_IntSetScrollInfo()
e.g. line 628 if (nBar == SB_CTL) do clearly indicate that nBar can be 2 (SB_CTL).
Some lines below we definitely must not access those 4 static arrays out of bounds then via nBar as access index!
Ftr with a bit of grepping I also found some calls like NtUserSetScrollInfo(Wnd, SB_CTL, &Info, FALSE);
e.g: in win32ss/user/user32/controls/scrollbar.c so I am pretty sure nBar == 2 can happen in practice within co_IntSetScrollInfo().
I question whether any of those reads/writes to those static arrays (or the comparisons) would make any sense on index 2,
so we should aim to eliminate them altogether in the future.
Fixes CORE-17769 'Rapps Listview manual resize may erroneously not draw the triangles sometimes'
This could happen for both: themed and unthemed.
CORE-17769 was a regression introduced by 0.4.14-dev-1134-g 00adb1a3f9
We don't really like the added state in form of the static variables,
but the patch works good from a pure testing-perspective.
Many Thanks to the patches author: Doug Lyons
- Do the kernel/server --> user/client-space pointers conversion within
NtUserProcessConnect(), instead of having the callers of this function
doing this job.
This makes the behaviour Windows-compatible.
NOTE: the gHandleEntries pointer is ReactOS-specific!
- Drop the g_ulSharedDelta global, just use instead gSharedInfo.ulSharedDelta.
- Add extra documentation aspects for NtUserProcessConnect() that are
not yet implemented in ReactOS.
- Improve User32InitializeImmEntryTable function and related.
- Complete win32ss/user/user32/include/immtable.h table.
- Delete a hack in user32.DllMain and apply my magical tricks. This will fix some access violations in IMM32.
- Add some stubs into IMM32.
CORE-11700
CORE-17688
When a new driver is installed for the same device (like VBoxVideo), it uses the same hardware enum registry key and thus reuses the same DisplayId and the same display registry key. Therefore we need to update the setting in that key, even when the key already exists.
This seems to work good and not cause any issues, but testing indicated that on Windows some values are only updated, when the driver has changed. If neccessary, this can be achieved by updating and querying the ActiveService value in the device enum key (e.g. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\PCI\VEN_80EE&DEV_BEEF&SUSYS_00000000&REV_00\3&267a616a&0&10\Control: ActiveService). If that doesn't match the current device name (from DriverExtension->RegistryPath) the values should be copied over.
Enter an SEH2_TRY one time and do all testing within it instead of entering the SEH_TRY multiple times.
The commit is an addendum to 0.4.15-dev-2734-g 514147776a
Thanks to patches author Doug-Lyons
This is 1:1 the final approved content of #3758, but I committed
by hand and closed the PR to avoid squash+rebase.
in CreateDIBPalette() when passing invalid arguments to CreateDIBSection.
This could be triggered by using the broken test-application "GDIProg".
After this patch not only the BSOD is fixed but also the app does
properly start up, like it is the case on 2k3sp2.
Thanks to the patches author Doug Lyons.
DLGWINDOWEXTRA is 30 (both on win32 and win64). This has storage for the following entries: DWLP_MSGRESULT (0), DWLP_DLGPROC (8), DWLP_USER (16)
We used to store the dialog info pointer using SetWindowLongPtr (DWLP_ROS_DIALOGINFO == DWLP_USER+sizeof(ULONG_PTR) == 24), which was fine on win32, but failed on win64, since there wasn't enough space left (24 + 8 = 32 > 30).
Rewrite the way the DLGINFO pointer is stored, by adding an additional field to the WND structure and set it using NtUserxSetDialogPointer (which is what it is for).
Also fix too small cbWndExtra for the button class.
But include registry changes and INF files depending on SARCH variable.
This commit is expected to uncover pc98vid build error on MSVC 2015.
Addendum to 8c475e4. CORE-17529
Fix Clang-Cl
'...\printerdrivers.c(97,98): warning: variable 'cbBuf' is uninitialized when used here [-Wuninitialized]'
Addendum to 62c4b82.
CORE-14306
CORE-17545
win32ss/user/winsrv/consrv/frontends/wcwidth.c:203:30: warning: result of comparison of constant 262141 with expression of type 'wchar_t' (aka 'unsigned short') is always true [-Wtautological-constant-out-of-range-compare]
(ucs >= 0x30000 && ucs <= 0x3fffd)));
~~~ ^ ~~~~~~~
win32ss/user/winsrv/consrv/frontends/wcwidth.c:203:12: warning: result of comparison of constant 196608 with expression of type 'wchar_t' (aka 'unsigned short') is always false [-Wtautological-constant-out-of-range-compare]
(ucs >= 0x30000 && ucs <= 0x3fffd)));
~~~ ^ ~~~~~~~
win32ss/user/winsrv/consrv/frontends/wcwidth.c:202:30: warning: result of comparison of constant 196605 with expression of type 'wchar_t' (aka 'unsigned short') is always true [-Wtautological-constant-out-of-range-compare]
(ucs >= 0x20000 && ucs <= 0x2fffd) ||
~~~ ^ ~~~~~~~
win32ss/user/winsrv/consrv/frontends/wcwidth.c:202:12: warning: result of comparison of constant 131072 with expression of type 'wchar_t' (aka 'unsigned short') is always false [-Wtautological-constant-out-of-range-compare]
(ucs >= 0x20000 && ucs <= 0x2fffd) ||
~~~ ^ ~~~~~~~
CORE-17545
Fix 3 warnings:
win32ss/user/winsrv/consrv/alias.c:648:16: warning: variable 'Status' is used uninitialized whenever 'while' loop exits because its condition is false [-Wsometimes-uninitialized]
while (CurEntry)
^~~~~~~~
win32ss/user/winsrv/consrv/alias.c:693:12: note: uninitialized use occurs here
return Status;
^~~~~~
win32ss/user/winsrv/consrv/alias.c:715:9: warning: variable 'Status' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
if (Header)
^~~~~~
win32ss/user/winsrv/consrv/alias.c:727:12: note: uninitialized use occurs here
return Status;
^~~~~~
win32ss/user/winsrv/consrv/alias.c:771:16: warning: variable 'Status' is used uninitialized whenever 'while' loop exits because its condition is false [-Wsometimes-uninitialized]
while (RootHeader)
^~~~~~~~~~
win32ss/user/winsrv/consrv/alias.c:807:12: note: uninitialized use occurs here
return Status;
It allows to properly pass the surface handle (and palette entry pointer) from MS ddraw into win32k.
Otherwise, they are passing into the wrong parameters of actual NtGdi* function, and due to this,
since they're detected as invalid, they become NULL, and that function does not work correctly.
See https://docs.microsoft.com/en-us/windows/win32/devnotes/-dxgkernel-ntgdiddgetdc for the reference
(and confirmed by our headers).
Required by MS DirectDraw stack (ddraw.dll & dxg.sys).
CORE-17561
Thanks goes to I_Kill_Bugs for the patch (and partly to Kyle Katarn for the PR) and Hermes for tweaking the patch code. Had to make a commit myself as the PR author's account is deleted.
Signed-off by: I_Kill_Bugs (original patch author)
Signed-off by: Kyle Katarn <contact@kcsoftwares.com>
Signed-off by: Hermès BÉLUSCA - MAÏTO <hermes.belusca-maito@reactos.org>
flip_fix_9.patch fixes:
CORE-16984 " 'SPINA Thrulg' / 'SPINA Thyr' / 'Sim Thyr' have images flipped"
CORE-17194 "StretchDIBits test" isn't work correctly"
"Output of 'Project 3 Test'"
CORE-14701 "DVDStyler 3.0.4 transparent toolbars"
CORE-14701 "DVDStyler 3.0.4 erroneously black around icons of welcome-dlg"
CORE-14671 "'Peazip' shows icons in buttons and menubar vertically flipped"
"Double Commander shoes icons flipped in buttons, menubar, listview and the treeview"
CORE-13273 "Welcome to Lazarus" icon shows flipped
CORE-13026 "'CudaText app' icon shows flipped"
Not all of those are duplicates, although they appear to be at first glance.
It affects different controls and some of those tickets do have different 'guilty revs' than others.
The patch does consist of 3 parts:
1.) win32ss/gdi/ntgdi/dibobj.c
This one is the most clean part of it, that addresses most of the flipping issues now.
2.) The hack in comctl32.h redefining the version:
We used that in the past to appease some, but not all of the issues listed above.
But it does hide additional issues, e.g. in DvDStyler, therefore we seem to still need that appeasement even today.
Most likely it would make sense to aim to avoid this part in the future.
part 2.) was committed as first appeasement on its own already into
0.4.14-RC-24-g 198b61e
0.4.13-RC-7-g 67211fa
0.4.12-RC-5-g 8449527
0.4.11-RC-16-g b906163
0.4.10-RC-7-g f1e80fe
0.4.9-RC-34-g 9d758ae
3.) toolbar.c change
That part fixes at least the toolbar case for DvDStyler
without relying on the comctl32.h hack any longer,
but it was still not enough to completely get rid of part 2.) yet.
Many thanks to all contributors: 'I_kill_Bugs', Doug Lyons and also 'Julenuri' for testing.
The patch gave nice testbot results:
KVM: https://reactos.org/testman/compare.php?ids=75704,75714
VBox: https://reactos.org/testman/compare.php?ids=75705,75715
and we also created a summary of manual test-results:
https://jira.reactos.org/browse/CORE-17415?focusedCommentId=126668&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-126668
If you read this comment via git blame and your goal is to get rid of the hack in comctl32.h, I would highly recommend
to redo the tests of that testing table, and if that is asked too much, then please test at least the following cases:
CORE-14701 "DVDStyler 3.0.4 transparent toolbars"
CORE-14701 "DVDStyler 3.0.4 erroneously black around icons of welcome-dlg"
"DVDStyler 3.0.4 erroneously black/transparent within comboboxes of properties of VMGM menu"
and try to add what might be needed to fix them, and double-check again:
"DoubleCommander optionsDlg the most complex testcase, contains flip-prone icons in treeview, listview, menubar, buttons, statics". Only some of its flipped icons were impacted by the comctl32.h change before.
- Change INIT_FUNCTION and INIT_SECTION to CODE_SEG("INIT") and DATA_SEG("INIT") respectively
- Remove INIT_FUNCTION from function prototypes
- Remove alloc_text pragma calls as they are not needed anymore
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
Fix Shell Hook and reduce failures of shell32_apitest ShellHook testcase. Fix the condition of notifying shell hook HSHELL_WINDOWCREATED in ntuser/winpos.c. CORE-17330
Implement the IMM function table in module user32.dll. CORE-11700
File immtable.h is located at win32ss/user/user32/include, that is a list of the DEFINE_IMM_ENTRY macro calls.
ReactOS has no Raster fonts today, so compensate for this affecting the editbox margins.
CORE-1091
This patch fixes the inability to see all of the characters in the CD-KEY box of Starcraft and Visual Basic 5 and Visual Basic 6 Installs. It supersedes #2656
More forwards to LocalSpl and LocalMon. At sometime will be merged together.
Bug fixes.
Printer Driver code is a wine hack. (WIP)
Added information for shell tray icon notifications.
Sync wine WinSpool driver tests. Unplugged from build.
- Add the definition of imm32!ImmGetImeInfoEx function.
- Add IMEINFOEXCLASS and IS_IME_HKL into "ntuser.h".
- Modify NtUserGetImeInfoEx function prototype.
CORE-11700
WinSpool : Implement missing API. Sync/Port from wine. Setting it to fast track for needed testing of the later GDI code. Leaving Fix-me debug prints on.
Local tree has WinSpool_winetest turned on. So no debug noise during normal ReactOS operation.
SpoolSS : Reordered header types. Have more Spl function to be added while SpoolSV is being coded to forward to LocalSpl.
Based on wine and old research from the GDI code.
This avoids disclosing pool contents to user mode when not all members
of the respective structure are initialized or when there is padding.
In co_IntCallWindowProc, also zero the stack buffer since this can
be passed to user mode as well, and contains padding.
PrintUI : Move to printing base directory.
NTPrint : Import from wine.
NTPrint does have a API test program from wine, not imported at this
time.
These will be Sync/Ported to full forked.
In return of GetGlyphOutline function call, gm.gmBlackBoxX and gm.gmBlackBoxY must be non-zero to avoid Division by Zero. At epilogue of ftGdiGetGlyphOutline, we adjust the values. CORE-15949
It popped up 2-3 times for me during several
months of ros usage and I could continue without
noticing any side effects.
Giannis who once added it, was ok with commenting it.
His words:
This assertion isn't something fatal,
the worst thing that can happen from continuing on it would be
to make the thread get awake more times than it should.
- Move ConSrvInitHandlesTable() & rename it ConSrvInitProcessHandles()
since its purpose is to initialize the standard input, output and
error handles for a console process.
- Move ConSrvAllocateConsole(), ConSrvInheritConsole() and
ConSrvRemoveConsole().
All the per-API message structure unpacking and console validation done
with ConSrvGetConsole() is now automatically generated using the macros,
so that the actual implementation of each API can be done independently
of how the console object is obtained.
This could also allow reusing these API implementations with a different
mechanism for obtaining the console without changing anything in them.
Need a way to send WM_DEVICECHANGE from the Service manager application.
Next step is to process it in the Client/Server Run-time Subsystem.
See CORE-16492.
Any new features/architectural changes to the console will either be
done in separate branches, or incrementally in master within the
existing console module.
Allocate heap instead of data segment to be used for callbacks on user side.
Move and correct initial hook call out setup. Use it in more than one hook call.
This fixes issues with strings out of alignment and use of kernel pointers.
See CORE-13907 and CORE-16769. KsStudio still needs retested.
Small wow update.
"Scrolling by pressing the scrollbar arrows does not draw the arrows as pressed"
Fixed by a patch of JIRA-user 'I_kill_bugs'. Thank you very much!
The regression was introduced by 0.4.11-dev-586-g
929a2c6637
(which itself aimed to fix CORE-13986,
but not CORE-13918 as erroneously stated in commit comment)
I intend to port this back into 0.4.13-RC later.
The #ifdef prevents setting the variable, es, to NULL, which lead to an illegal access.
This didn't match dll/comctl32/edit.c .
Patch by 'I_Kill_Bugs' contributor.
A very nice patch of JIRA user "I_kill_Bugs". Many many Thanks!
It addresses:
- CORE-14755 fixed, flashing scrollbar triangles (we know 131 affected apps just from rapps!)
- CORE-13931 fixed, FamiTracker invisible about-dlg
- CORE-14685 improves a bit, but is not entirely fixed
- CORE-11561 improves a bit, but is not entirely fixed
- The patch avoids unnecessary redraws, speeds up GUI interaction and NSIS install times
Jim Tabor had no complains about it, I just did some white-space-tweaks on EOL and indentation.
FTR A testbot run (not on master but on 0.4.13-RC-48-g818e5bc)
https://reactos.org/testman/compare.php?ids=71645,71666 VBox LGTM
https://reactos.org/testman/compare.php?ids=71646,71667 KVM LGTM
I felt tempted to port back, but decided to play safe and commit to master just.
In addition, honour the maximum number of history buffers allowed when
creating new ones.
Some implementation information has been obtained from
https://github.com/microsoft/terminal
(under MIT License).
For some reason, we don't get valid EDIDs when using LiveCD on QEMU.
We ignore them, and try to read the one of the next child.
This leads to a infinite loop and then, an out of memory error.
As it can also happen in other circonstances, stop enumeration as soon
as an invalid EDID is detected.
This breaks configurations with graphic cards with 2+ outputs, where
the first one is not plugged to a monitor, and the second one is plugged
to a monitor.
CORE-16695
Fixes symptom "mouse pointer vanishes when closing
applications via x in title-bar"
The bug in WIN32SS was unhidden by SVN r65496 == git
5c1a8109c8
, when we introduced explorer_new. The old explorer
had a workaround built within.
Many thanks to patches author James Tabor.
I intend to backport into 0.4.13RC as well.
By Reverting beginnings of raster-fonts-works (*.fnt and *.fon)
Thanks Katayama Hirofumi MZ for helping with this revert.
The regression was introduced by 0.4.13-dev-681-g
ae99df1675
I will also port this revert back into 0.4.13-RC
- Update the documentation of members of CONSOLE_INPUT_BUFFER.
- Simplify ConDrvGetConsoleNumberOfInputEvents().
- Simplify ConDrvFlushConsoleInputBuffer().
- Use also GetConsoleInputBufferMode() more often.
- Reimplement ConDrvScrollConsoleScreenBuffer() with separate copy and
fill helper functions and calculate rectangles in such a way as to
never use X-Y coordinates pointing outside of the screen buffer.
- Add X-Y coordinates assertions in ConioCoordToPointer().
* Update German translations
* Update translation again
* More translations
* Some fixes in the german translation
* Some more fixes
* Little translation tweak
* Updates to 2nd review
* Little update
* Add back keyboard accel for IDS_OPENFILELOCATION.
Co-authored-by: Hermès BÉLUSCA - MAÏTO <hermes.belusca-maito@reactos.org>
Far-East Asian language (Chinese, Japanese and Korean; CJK) needs special handling in console.
Especially a fullwidth character (mk_wcwidth_cjk(ch) == 2) needs a double width space. A fullwidth character on the console window is treated as a pair of a leading byte and a trailing byte (COMMON_LVB_LEADING_BYTE and COMMON_LVB_TRAILING_BYTE). CORE-12451
CORE-15147
- Rename CLIENTTHREADINFO::tickLastMsgChecked into timeLastRead as
documented in https://reactos.org/wiki/Techwiki:Win32k/CLIENTTHREADINFO .
This is the last time the message queue was read.
- This is the structure member one must compare against the current tick
count timestamp in order to heuristically determine whether a message
queue thread is hung!! Fix MsqIsHung() in accordance, add extra debug
logging in order to help us determining which of our code present
regular GUI hangs, and add as well an extra "TimeOut" parameter so as
not to hardcode a fixed value within that function but instead
allowing its caller to specify possible different values.
- THREADINFO::timeLast is on the contrary the last message time stamp,
and will definitively differ from CLIENTTHREADINFO::timeLastRead .
It should only be used for information purposes!
- Accordingly, in NtUserGetThreadState()::THREADSTATE_UPTIMELASTREAD
and in InitThreadCallback(), only (re-)initialize the timeLastRead
member of the CLIENTTHREADINFO structure of the THREADINFO of interest.
- In co_IntPeekMessage(), update more often the timeLastRead timestamp
whenever the current message queue has been read (but NOT timeLast!!
That one will be updated ONLY WHEN a message is found!).
- In co_IntSendMessageTimeoutSingle() first check whether the window to
which we send the message is being destroyed, before checking for
queue hangs etc. Collapse the logic checks for queue hang and increase
the hang timeout check to 4 times MSQ_HUNG (== 4 * 5 seconds) and
display a debug trace.
Make preparation for console support of Chinese, Japanese and Korean (CJK) codepages. CORE-12451
- Add consrv/frontends/wcwidth.c.
- Add GuiPaintTextModeBufferCJK function.
This is done by creating the volatile key
\Registry\Machine\System\CurrentControlSet\Control\GraphicsDrivers\BaseVideo .
Also cache during first initialization of VIDEOPRT the state of the boot
options BASEVIDEO and NOVESA, so that they can be readily retrieved later
(for example, in VideoPortIsNoVesa()).
CORE-15901
This fixes display reset transition when an external module acquired
INBV ownership and then released it, similarly to what was done in
commit 0ad65796 for VIDEOPRT.
For this a backup screenbuffer is used to store the contents of the
screen just before an INBV screen acquire transition, and these contents
are restored when it is detected that INBV ownership has been released.
Also, the active text font associated with the active console code-page
is restored, as well as the cursor state and shape.
In addition, any user of BLUE.SYS is now required to explicitly issue
a new IOCTL_CONSOLE_RESET_SCREEN to either enable or disable the screen.
This allows avoiding nasty unwanted screen mode switches when a handle
to the \Device\BlueScreen device is opened but no screen mode switch was
actually wanted - This "fixes" this annoyance on ReactOS and Windows,
when these are running witha VGA-compatible video driver and one wants
to look at properties of the \Device\BlueScreen device using
Sysinternals' WinObj.
Following this, we don't need to check anymore for explicit INBV
ownership by issuing calls to InbvCheckDisplayOwnership(), but instead
we check whether the screen has beeen manually enabled using the
aforementioned IOCTL. This partly supersedes commit 8b553a4b, and allows
fixing the second bug, namely that if we start ReactOS without the
/NOGUIBOOT option (and thus, INBV is active during boot), USETUP would
not show up anything because BLUE.SYS wouldn't display anything on screen.
See CORE-15901.
[USETUP][CONSRV] Call IOCTL_CONSOLE_RESET_SCREEN to tell BlueScreen device to enable the screen.
PR #2135 (e329e83) caused radiobutton regression. This PR will fix it.
- Clear DT_BOTTOM | DT_VCENTER flags upon calculating the button text height.
CORE-16552
