Instead of using some kind of flawed logic about modifying a keypress result
when CapsLock is toggled, just add a CapsLock shift level (and all derived
shift levels, i.e. Shift+CapsLock and CapsLock+AltGr and Shift+CapsLock+AltGr)
and query Windows keyboard layout API about the result of keypresses involving
CapsLock.
Keysym table is going to be (roughly) twice as large now, but CapsLock'ed
keypresses will give correct results for some keyboard layouts (such as
Czech keyboard layout, which without this change produces lowercase letters
for CapsLock->[0,2,3,4...] instead of uppercase ones).
Keymap update time also increases accordingly.
https://bugzilla.gnome.org/show_bug.cgi?id=165385
Pick the W32 API for possible deadkey+<something> combinations
and prefer these to other sources of deadkey combos.
Specifically, if W32 API supports at least one combo for a particular
deadkey, only use that data and do not attempt to do other, unsupported
combinations, even if they make sense otherwise.
This is needed to, for example, correctly support US-International
keyboard layout, which produces a combined character for <' + a>
combo, but not for <' + s>, for example.
This is achieved by stashing all the deadkeys that we find in
an array, then doing extra loop through all virtual key codes and
trying to combine them with each of these deadkeys. Any combinations
that produce a single character are cached for later use.
In GTK Simple IM context, call a new GDK W32 function to do a lookup
on that cached combination table early on, among the "special cases"
(which are now partially obsolete).
A limitation of this code is that combinations with more than
one deadkey are not supported, except for combinations that consist
entirely of 2 known deadkeys. The upshot is that lookups should
be relatively fast, as deadkey array stays small and the combination
tree stays shallow.
Note that the use of ToUnicodeEx() seems suboptimal, as it should
be possible to just load a keyboard library (KBD*.DLL) manually
and obtain and use its key table directly. However, that is much more
complicated and would result in a significant rewrite of gdkkeys-win32.
The code from this commit, though hacky, is a direct addition to
existing code and should cover vast majority of the use-cases.
https://bugzilla.gnome.org/show_bug.cgi?id=569581
This changes the group/level semantic.
Previously W32 backend used "group 0/1" to denote "AltGr OFF/ON"
and "level 0/1" to denote "Shift is OFF/ON".
Now "group" means "keyboard layout" and there can be up to 255 groups,
while AltGr and Shift are combined into a single level enum that
takes values between 0 and 4.
Unlike X, W32 doesn't do effective group overriding, meaning that
it will never tell the caller that a different group was actually
used (even for universal keys, such as Enter), because key symbol
table is completely fabricated and there's no point in trying to
save a few of kilobytes of RAM by not duplicating universal key
records for all groups.
Also contains many whitespace changes (tab elimination, fixed
indentation) and cleanup (axed a few global variables, these are
now accessed via the default keymap).
https://bugzilla.gnome.org/show_bug.cgi?id=768722
1f74f12d9 rendered entry of keypad decimal mark unuseable for
several national keyboard layouts, this commit amends that, at
least for W32, and makes GTK+ behave more or less the same way
W32 behaves.
The patch works like this:
- When typing the first character at the keyboard or when switching
keyboard layouts, the decimal mark character will be cached in the
static variable "decimal_mark" within gdkkeys-win32.c
- in case of WIN32, gdk_keyval_to_unicode() asks gdkkeys-win32.c for the
current decimal_mark when converting GDK_KEY_KP_Decimal.
https://bugzilla.gnome.org/show_bug.cgi?id=756751
GdkKeymap already has support for _get_num_lock_state() and
_get_caps_lock_state(). Adding _get_scroll_lock_state() would be good
for completness and some backends (Windows?) could take advantage of
this.
Include config.h first so that _GDK_EXTERN may be defined once
and only once during the build, so that we do not get warnings/
errors for macro redefinition.
https://bugzilla.gnome.org/show_bug.cgi?id=701251
There are sure regressions but basic stuff seems to be working
again after all the API breakage done with comments like
"Win32 and Quartz need to be ported still."
It turns out that my attempt at handling Super, Hyper and Meta better
is causing problems, mostly because Alt and Meta are commonly colocated
in the modmap, and apps do a check for the Alt modifier regularly.
See e.g bug 607697.
2008-10-01 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkkeys-win32.c (gdk_keymap_get_caps_lock_state):
Implement trivially on Windows. Not sure if something more complex
is actually needed, more specifically whether the function needs
to differentiate between "Caps Lock" and "Shift Lock" semantics?
svn path=/trunk/; revision=21558
2008-08-05 Tor Lillqvist <tml@novell.com>
Bug 544684 - Win64 issue, window handles are assumed to be 32-bit
* gdk/win32/gdkcursor-win32.c
* gdk/win32/xcursors.h: Change some gchar* to guchar* and vice
versa to avoid gcc 4.4 signedness warnings.
* gdk/win32/gdkevents-win32.c: Add some guchar and char pointer
casts to get rid of gcc 4.4 signedness warnings. Print GdkAtom
values in debugging output using the %p format.
* gdk/win32/gdkkeys-win32.c
* gdk/win32/gdkfont-win32.c
* gdk/win32/gdkmain-win32.c: Add some casts to avoid gcc warnings.
* gdk/win32/gdkwindow-win32.c: Use SetWindowLongPtr() instead of
SetWindowLong().
* gdk/win32/gdkwin32id.c (gdk_handle_hash): Use all 64 bits of a
HANDLE on Win64.
svn path=/trunk/; revision=20994
2008-07-02 Cody Russell <bratsche@gnome.org>
Bug 541305 – [Win32] Scrolling was broken after GdkWindow refactoring
* gdk/win32/gdkwindow-win32.c: Reverted some logic so that scrolling
works again.
* gdk/win32/gdkgeometry-win32.c: Removed some more unnecessary checks.
* gdk/win32/gdkkeys-win32.c: Removed unused variable to fix compile-time
warnings.
svn path=/trunk/; revision=20737
2007-07-03 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkkeys-win32.c (gdk_keymap_have_bidi_layouts):
Implement. Just return FALSE for now. What should this function
actually do? Does keyboards layouts being "in use" mean that such
layouts can be switched to on the fly? If so we need to actually
check that.
svn path=/trunk/; revision=18359
2006-08-29 Tor Lillqvist <tml@novell.com>
Remove support for Windows 9x/ME. GTK+ hasn't worked on Win9x
since 2.6 or 2.8. It's pointless to keep the Win9x code in here as
it isn't being maintained anyway. If somebody is interested, it
can always be found in older GTK+ versions, and in CVS.
* gdk/win32/gdkcursor-win32.c
* gdk/win32/gdkdnd-win32.c
* gdk/win32/gdkdrawable-win32.c
* gdk/win32/gdkgc-win32.c
* gdk/win32/gdkglobals-win32.c
* gdk/win32/gdkkeys-win32.c
* gdk/win32/gdkmain-win32.c
* gdk/win32/gdkproperty-win32.c
* gdk/win32/gdkselection-win32.c: Remove the G_WIN32_IS_NT_BASED()
and G_WIN32_HAVE_WIDECHAR_API() tests and their false (Win9x)
branches, and any variables or static functions used only by the
Win9x branches.
* gdk/win32/gdkprivate-win32.h: Remove backup definitions for
constants that aren't missing from current mingw and MSVC6
headers.
* gdk/win32/gdkmain-win32.c
* gdk/win32/gdkprivate-win32.h: Remove the _gdk_win32_gdi_failed()
function. On NT-based Windows GetLastError() returns error codes
also for failed GDI calls, so we can use _gdk_win32_api_failed()
always.
2005-05-23 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkkeys-win32.c (handle_dead): If the keysym isn't one
of the special cases this function takes care of, us it as
such. This takes care of for instance the Bengali Virama, see bug
#165723.
2005-05-18 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkevents-win32.c
* gdk/win32/gdkkeys-win32.c
* gdk/win32/gdkprivate-win32.h: Check the KF_EXTENDED bit in
lParam of WM_KEY* messages to distinguish between left and right
Control and Alt keys. Unfortunately, the right Shift key doesnt
set KF_EXTENDED, so to distinguish between left and right Shift
keys, check the scan code. (#304584)
2005-03-16 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkdisplay-win32.c (_win32_on_clipboard_change): Print
debugging output only if asked for, not always.
* gdk/win32/*.c: Use the %+d%+d format for coordinate pairs in
debugging printout instead of +%d+%d. Misc other additions and
cosmetic improvements to debugging printouts. Use API_CALL() and
GDI_CALL() macros in more places.
* gdk/win32/gdkwindow-win32.c (gdk_window_move, gdk_window_resize,
gdk_window_move_resize): To detect child windows, check whether
the real parent is not the desktop window, instead of relying on
the GDK window type being GDK_WINDOW_CHILD. Foreign GtkPlug
windows have a GDK window type GDK_WINDOW_FOREIGN, but are still
de facto child windows.
2005-02-23 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkkeys-win32.c (update_keymap): Workaround for bug in
MapVirtualKey(VK_DIVIDE, 0) in some Windows versions. (#142998)
2005-02-01 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkkeys-win32.c (handle_special, set_shift_vks,
reset_after_dead, handle_dead): New functions, code blocks
refactored out of update_keymap(). No functionality change.
(update_keymap): Use ToUnicodeEx() when available (on NT-based
Windows) instead of ToAsciiEx(). Makes keyboard input work in
Unicode-only input locales that don't have any ANSI codepage, for
instance Hindi and Bengali. Use _gdk_input_codepage only on
Win9x. (#165723)
* gdk/win32/gdkevents-win32.c (gdk_event_translate): On
WM_INPUTLANGCHANGE, use GetLocaleInfo() instead of
TranslateCharsetInfo() to get the input locale's corresponding
codepage, if any.
2005-01-23 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkkeys-win32.c (update_keymap): Handle Greek tonos
dead accent key. (#164859, reported and fix verified by Daniel
Atallah.)
* gtk/gtkimcontextsimple.c (gtk_compose_seqs): Handle
GDK_Greek_accentdieresis (tonos and dialytika) combining with iota
and upsilon.
2004-08-07 Tor Lillqvist <tml@iki.fi>
* gdk/win32/gdkkeys-win32.c (update_keymap): Don't hardcode
mapping of VK_DECIMAL to GDK_KP_Decimal. Instead, let ToAsciiEx()
map it to what's printed on the keypad decimal key for the current
input locale (keyboard layout). (#149404)
2004-04-10 Tor Lillqvist <tml@iki.fi>
* gdk/win32/gdkkeys-win32.c (gdk_keymap_translate_keyboard_state):
If both Shift and CapsLock pressed, ignore the shift only for
letters (that would have been affected by the CapsLock). (#139095)
* gdk/win32/gdkglobals-win32.c: Disable tablet support by default,
seems to be even buggier now than it used to be. (#138341)
Initialize _gdk_input_ignore_wintab to TRUE.
* gdk/win32/gdkmain-win32.c: Add --use-wintab switch and
GDK_USE_WINTAB environment variable to turn on tablet support.
2004-03-05 Federico Mena Quintero <federico@ximian.com>
Fixes#136082 and #135265, patch by Morten Welinder.
* configure.in: Use AC_SYS_LARGEFILE.
* */*.c: #include <config.h>
2003-12-14 Tor Lillqvist <tml@iki.fi>
Merge from stable:
* gdk/gdkdisplaymanager.c: Mark default_display static.
* gdk/win32/gdkdnd-win32.c: Mark current_dest_drag static.
* gdk/win32/gdkkeys-win32.c: Disable some overly verbose debugging
output.
* gdk/win32/gdkevents-win32.c: Clean up the debugging output from
--gdk-debug=events. In general, output just one line of debugging
output for each Windows message, plus one line for each GDK event
generated. Indent all lines according to window procedure nesting
level.
(inner_window_procedure): Rename from real_window_procedure.
(find_real_window_for_grabbed_mouse_event): Don't get misled when
the point is in the non-client (decoration) area of the window
returned by WindowFromPoint(). Return the root window in that
case.
(build_pointer_event_state): Test also MK_XBUTTON1 and
MK_XBUTTON2 (buttons 4 and 5).
(synthesize_enter_event): Track the mouse leaving the window in
the event being generated, not the one mentioned in the Windows
message.
(propagate): Test for NULL parent earlier. Improves event
generation from a grabbed pointer. Part of fix for #107320.
(handle_stuff_while_moving_or_resizing): New function, to
dispatch the main loop (once).
(resize_timer_proc): New function, set to be called by an inerval
timer during resizes/moves. Calls handle_stuff_while_moving_or_resizing().
(gdk_event_translate): Drop unused return_exposes parameter.
Handle WM_XBUTTONDOWN and UP messages (buttons 4 and 5).
On WM_SYSKEYUP, generate a key release event also for just the Alt
key.
On WM_MOUSELEAVE, generate a leave event of type
GDK_NOTIFY_ANCESTOR (and not UNKNOWN) if the mouse left a
top-level window, and left the app completely.
On WM_ENTERSIZEMOVE, set a flag, and start an interval timer that
calls resize_timer_proc() at regular intervals. On
WM_EXITSIZEMOVE, kill the timer.
On WM_WINDOWPOSCHANGED, generate a configure event if necessary,
and dispatch the main loop (by calling
handle_stuff_while_moving_or_resizing()). Fixes#99540, idea by
Herman Bloggs.
* gdk/win32/gdkmain-win32.c (_gdk_win32_message_to_string): Handle
also wintab messages.
* gdk/win32/gdkwindow-win32.c (gdk_window_set_skip_taskbar_hint):
Instead of using WS_EX_TOOLWINDOW, implement by setting/unsetting
the window's owner. Fixes#118093, reported by Maxime Romano.
2003-09-19 Tor Lillqvist <tml@iki.fi>
* gdk/win32/gdkkeys-win32.c (update_keymap): Handle dead keysyms
present on the US-International keyboard. For clarity, order
keysyms in case statement according to numeric value.
(gdk_keymap_translate_keyboard_state): Handle Caps Lock
correctly. (#120176, Ken Rastatter and Owen Taylor)
2003-07-25 Tor Lillqvist <tml@iki.fi>
* gdk/win32/gdkprivate-win32.h
* gdk/win32/gdkglobals-win32.c: New flags _gdk_input_locale_is_ime
and _gdk_keyboard_has_altgr.
* gdk/win32/gdkevents-win32.c: Lots of changes. Most important
ones detailled here.
Code that has been ifdeffed out for a long time removed. Remove
some really old doc comments that were left behind for some public
functions, the official ones are in the X11 backend anyway. Change
GDK_WINDOW_OBJECT() calls to GdkWindowObject casts. Reformat
multi-line boolean expressions to have the operators at ends of
lines.
As mouse capture with SetCapture() indeed seems to work OK, no
need to have the correspoinding macro USE_SETCAPTURE and ifdefs.
Ifdef out the gdk-ping-msg stuff. I don't remember why it was
needed at some time, and things seem to work fine now without
(knock on wood).
Ifdef out the search for some Latin locale keyboard layout being
loaded. Not used currently, but might be needed after all, if we
decide that we want to be able to generate ASCII control character
events with a non-Latin keyboard.
(assign_object): New helper function, handles the g_object_ref()
and unref() calls when assigning GObject pointers.
(generate_crossing_events): Also generate the GDK_NOTIFY_INTERIOR
enter event when the pointer has moved to an ancestor window. Was
left out by mistake.
(gdk_window_is_ancestor): Renamed from gdk_window_is_child().
(gdk_pointer_grab, gdk_pointer_ungrab): Implement the confine_to
functionality, using ClipCursor().
(find_window_for_mouse_event): Splice part of code into new
function find_real_window_for_grabbed_mouse_event().
(fixup_event, append_event, apply_filters): New functions, code
refactored out from elsewhere.
(synthesize_enter_or_leave_event, synthesize_leave_event,
synthesize_enter_event,
synthesize_leave_events,synthesize_enter_events): Also take a
GdkCrossingMode parameter, in preparation to generating
GDK_CROSSING_GRAB and GDK_CROSSING_UNGRAB events.
(fixup_event, append_event, fill_key_event_string): New functions,
code refactoring.
(vk_from_char, build_keypress_event, build_keyrelease_event):
Removed as part of dropping WM_CHAR handling.
(build_key_event_state,gdk_event_translate): Call
GetKeyboardState(), once, for each keyboard message, instead of
several calls to GetKeyState() here and there.
(gdk_event_translate): Fix bugs #104516, #104662, #115902. While
at it, do some major refactoring, and some fixes for potential
problems noticed while going through the code.
Don't handle WM_CHAR at all. Only handle WM_KEYDOWN and
WM_KEYUP. Don't need the state variables related to whether to
wait for WM_CHAR or not, and whether the current key is
AltGr. Remove lots of complexity. Thus don't need the
use_ime_composition flag.
Not handling WM_CHAR means dead key handling will have to be taken
care of by GTK, but that seems to work fine, so no worry.
Another side-effect is that Alt+keypad digits don't work any
longer, but it's better to learn to use GTK's ISO14755 support is
anyway.
Be more careful in checking whether AltGr is involved. Only
attempt to handle it if the keyboard actually has it. And
explicitly check for *left* Control plus *right* Alt being
pressed. Still, allow (left) Alt and/or (right) Control with AltGr
chars.
Handle keys using similar code as in the X11 backend. As we have
built a keymap in gdkkeys-win32.c anyway, use it by calling
gdk_keymap_translate_keyboard_state() to look up the keysym from
the virtual key code and keyboard state. Build the key event
string in exactly the same way as the X11 backend.
If an IME is being used, don't generate GDK events for keys
between receiving WM_IME_STARTCOMPOSITION and
WM_IME_ENDCOMPOSITION, as those keys are for the IME.
For WM_IME_COMPOSITION, handle all the Unicode chars returned from
the IME, not just the first one.
gdk_event_translate() is still quite complex, could split the
message handler cases out into separate functions.
On mouse events, when the mouse is grabbed, use
find_real_window_for_grabbed_mouse_event() in order to be able to
generate correct crossing events.
No longer take a pre-allocated GdkEvent as parameter. Instead,
allocate events as needed and append them to the queue. (This is
different from how gdk_event_translate() in the X11 backend
works.) This change made the code much clearer, especially in the
cases where we have to generate several GDK events for one Windows
message. Return FALSE if DefWindowProc() should be called, TRUE
if not. If DefWindowProc() should not be called, also return the
value to be returned from the window procedure.
(Previously, the interaction with gdk_event_translate()'s caller
was much more complex, when we had to indicate whether the
already-queued event should be left in the queue or removed, and
in addition also had to indicate whether to call DefWindowProc()
or not, and what value to return from the window procedure if
not.)
Don't use a separate "private" variable required to be pointing to
the GdkWindowObject of the "window" variable at all times. Just
use casts, even if looks a bit uglier.
Notice destroyed windows as early as possible, and break out of
the messsage switch.
Use _gdk_pointer_root as current_window when the pointer is
outside GDK's top-level windows.
On WM_INPUTLANGCHANGE, set _gdk_input_locale_is_ime as
appropriate, based on ImmIsIME().
(gdk_event_translate, gdk_event_send_client_message_for_display,
gdk_screen_broadcast_client_message): Implement client messages.
Use a registered Windows message to pass GDK client messages. Note
that the amount of user data is restricted to four bytes, as it is
carried in the LPARAM. (The WPARAM is used for the message type
"atom".)
(real_window_procedure): Adapt for new gdk_event_translate()
interface.
* gdk/win32/gdkmain-win32.c (_gdk_windowing_init): Set
_gdk_input_locale_is_ime initially.
* gdk/win32/gdkwindow-win32.c: Use g_object_ref()/unref() instead
of g_colormap_ref()/unref().
(gdk_window_new): Made code a bit more like the X11 one, pretend
to handle screens (although we just have one for now).
* gdk/x11/gdkevents-x11.c
(gdk_event_send_client_message_for_display,
gdk_screen_broadcast_client_message): Document the user data
limitation on Win32.
* gdk/win32/gdkevents-win32.c (print_event): More complete enter
and leave notify detail output.
* gdk/win32/gdkkeys-win32.c (update_keymap): Make dead keys
visible to GDK and GTK. Store the corresponding GDK_dead_* keysym
for those, so that the GtkIMContextCimple compose tables will
work. Deduce if the keyboard layout has the AltGr key, and set the
above flag accordingly.
Fri Sep 27 14:30:34 2002 Eric Warmenhoven <eric@warmenhoven.org>
* gdk/Makefile.am gdk/gdkkeynames.c gdk/linux-fb/gdkmain-fb.c
gdk/win32/gdkkeys-win32.c: Move gdk_keval_name and
gdk_keyval_from_name to new gdkkeynames.c, share implementation for
linux-fb and win32 (#94123)
* gdk/linux-fb/Makefile.am gdk/linux-fb/gdkkeyboard-fb.c
gdk/linux-fb/gdkmain-fb.c gdk/linux-fb/gdkmouse-fb.c: add
-DG_DISABLE_DEPRECATED and -DGDK_PIXBUF_DISABLE_DEPRECATED to compile
flags
* gdk/linux-fb/gdkdisplay-fb.c: prevent segfault if display can't
initialize
* gdk/linux-fb/gdkkeyboard-fb.c: better parsing of keycodes
* gdk/linux-fb/gdkwindow-fb.c: add stubs for new functions
Wed Jun 5 18:34:47 2002 Owen Taylor <otaylor@redhat.com>
Changes multihead reorganizing code for win32 support,
mostly from a patch by Hans Breuer.
* gdk/gdkcolor.c gdk/x11/gdkcolor-x11.c gdk/gdkcursor.c
gdk/x11/gdkcursor-x11.c gdk/gdkevents.c gdk/x11/gdkevents-x11.c
gdk/gdkfont.c gdk/x11/gdkfont-x11.c gdk/gdkkeys.c
gdk/x11/gdkkeys-x11.c gdk/gdkimage.c gdk/x11/gdkimage-x11.c
gdk/gdkscreen.c gdk/x11/gdkmain-x11.c
gdk/gdkdisplay.c gdk/gdkevents-x11.c gdk/gdkpango.c
gdk/x11/gdkpango-x11.c gdk/gdkselection.c
gdk/x11/gdkselection-x11.c gdk/gdkwindow.c
gdk/x11/gdkwindow-x11.c gdk/gdkvisual.c gdk/x11/gdkvisual-x11.c:
Move port-independent singlehead wrapper functions into
port-independent part of GDK. (#80009)
* gdk/win32/gdkcolor-win32.c gdk/win32/gdkcursor-win32.c
gdk/win32/gdkevents-win32.c gdk/win32/gdkfont-win32.c
gdk/win32/gdkimage-win32.c gdk/win32/gdkkeys-win32.c
gdk/win32/gdkmain-win32.c gdk/win32/gdkproperty-win32.c
gdk/win32/gdkselection-win32.c gdk/win32/gkwindow-win32.c:
Turn singlehead functions into "multihead" functions that ignore
their GdkDisplay or GdkScreen arguments.
* gdk/win32/gdkdrawable-win32.c gdk/win32/gdkevents-win32.c
gdk/win32/gdkinput-win32.c gdk/win32/gdkprivate-win32.h:
Misc multihead-compatibility changes.
* gtk/gtk.def gdk/gdk.def: Update for multihead functions.
* gdk/gdkcolormap.h gdk/gdkvisual.h gdk/x11/gdkcolormap-x11.c
gdk/x11/gdkvisual-x11.c: Remove the screen fields
from the public parts of the colormap/visual structures, add accessors
instead.
* gdk/gdkpixbuf-render.c gdk/gdkpixmap.c gdk/gdkrgb.c
gdk/x11/gdkcolormap-x11.c gdk/x11/gdkimage-x11.c
gdk/x11/gdkimage-x11.c gdk/x11/gdkprivate-x11.h gtk/gtkgc.c
gtk/gtkstyle.c gtk/gtkwidget.c: Use accessors to get the screen
for colormaps, visuals; move the fields into the private
structures for the x11 backend.
* gdk/gdkdisplay.[ch] gdk/x11/gdkdisplay-x11.[ch]
gdk/gdkscreen.[ch] gdk/x11/gdkscreen-x11.c:
Remove virtualization of screen and display functions.
(#79990, patch from Erwann Chenede)
* gdk/win32/gdkdisplay-x11.c gdk/win32/gdkscreen-win32.c
gdk/win32/{Makefile.am, makefile.msc, makefile.mingw}:
New files containing stub implementations of Display,
Screen functions.
* gdk/x11/gdkscreen-x11.[ch] gdk/x11/gdkdisplay-x11.[ch]
gdk/x11/gdkx.h: Clean up function exports and what
headers they are in. (#79954)
* gdk/x11/gdkx.h: Fix macro that was referring to a non-existant
screen->screen_num. (In the patch for #79972, Erwann Chenede)
* gdk/gdkscreen.c gdk/gdkwindow.c gdk/x11/gdkinternals.h
gdk/x11/gdkscreen-x11.c: Fix gdk_screen_get_window_at_pointer()
to use window hooks. (#79972, patch partly from Erwann Chenede)
* gdk/x11/gdkdisplay-x11.c gdk/x11/gdkevents-x11.c: Fix
some warnings.
