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."
This commit hides the GdkDisplayManager instance and class structs,
adds vfuncs for listing displays, opening displays, and getting and
setting the default display. The X11 backend has a derived
GdkDisplayManagerX11.
The gdk_display_manager_get() function is responsible for deciding on
which of the compiled in backends to use. Currently, it consults the
GDK_BACKEND environment variable and falls back to x11.
* add per-display gdk_x11_display_error_trap_push()
(X11-specific because gdk_error_trap_push() probably
should have been)
* make gdk_error_trap_push() handle only GDK displays
not displays opened without a GDK wrapper
* make gdk_error_trap_pop() and gdk_x11_display_error_trap_pop()
automatically sync only if needed, so manual gdk_flush() is not
required
* add gdk_error_trap_pop_ignored() which just asynchronously
ignores errors, so never needs to sync
* add G_GNUC_WARN_UNUSED_RESULT to plain pop(), because
if you use plain pop() and don't need the return value,
the async gdk_error_trap_pop_ignored() should be used
instead. This results in lots of warnings to clean
up in a later patch.
The main objective here was to avoid the need to sync just
to ignore an error. Now, syncing is automatic, and only
happens when we need to know the error code.
https://bugzilla.gnome.org/show_bug.cgi?id=629608
Intermediate commit of work in progress on integrating the old code
for OLE2-based generic drag and drop from Arhaeopteryx Software, from
a long time ago in the GTK+ 1.3 timeframe. Does still not work and is
as before not compiled in unless OLE2_DND is defined in
gdkdnd-win32.c. (Thus, for inter-process DND, still only WM_DROPFILES
style dropping of files on GTK+ apps works.)
Related slight refactoring of other code that shouldn't change how it
works. Add more global variables for run-time constants (once
initialized) representing well-known GdkAtoms and registered Windows
clipboard formats, as they with the generic DND code will be needed in
several source files. Some improved debugging output.
2009-03-11 Tor Lillqvist <tml@iki.fi>
Bug 573067 - Intra-app dnd of text behavior on Windows is wrong
* gdk/win32/gdkdnd-win32.c (local_send_motion) (gdk_drag_motion):
The default action should be move, not copy. Tweak how the
GdkDragAction fields in GdkDragContexts are changed. Seems to help
the problem.
Add more debugging printout for --gdk-debug=dnd to many functions.
* gdk/win32/gdkmain-win32.c
* gdk/win32/gdkprivate-win32.h: (_gdk_win32_drag_protocol_to_string)
(_gdk_win32_drag_action_to_string): New functions for use in
debugging printouts.
svn path=/trunk/; revision=22522
2009-01-29 Tor Lillqvist <tml@novell.com>
Bug 559408 - Transparency lost when images are copied between GTK+
and the clipboard on Windows
The code in gdkselection-win32.c is simplified quite a lot. When
an image is stored on the clipboard from GTK+, only the "PNG" and
CF_DIB formats are advertised. PNG is our preferred format because
it can losslessly represent any image that gdk-pixbuf can handle,
even with alpha, unambiguously. CF_DIB is also advertised because
of its ubiquitous support in Windows software.
Delayed rendering is used as before, so for other data than text
nothing is actually stored on the clipboard until some app asks
for it.
It's pointless to advertise images formats like "image/png" or
"image/x-MS-bmp" that no other Windows application is going to
look for anyway. Likewise it's pointless to store text under
formats like "text/plain" or "UTF8_STRING". Just store
CF_UNICODETEXT. CF_TEXT will be available as a synthesized format
anyways.
Office 2007 offers and asks for images in PNG format using the
registered clipboard format name "PNG", so we do likewise. If the
"PNG" format is available that is preferred when copying to GTK+
from the clipboard.
Unfortunately Word 2007 still uses CF_DIB without handling
alpha. But PowerPoint 2007 uses PNG if available and handles alpha
correctly. Both Word and Powerpoint offer PNG with alpha nicely.
Firefox and IE7 offer images that contain alpha as 32-bit version
3 BI_RGB DIBs with the undocumented "extra" bytes actually being
alpha. Also, alpha is premultiplied into the RGB bytes, presumably
because that is how AlphaBlend() wants such DIBs. That is also
taken care of. At least for Firefox it easy to be sure that a
CF_DIB on the clipboard is from Firefox.
Also some general stylistic cleanup, comment improvements, and
improvements of debugging printout especially in the clipboard
handling. Those are not detailled below.
* gdk/win32/gdkprivate-win32.h
* gdk/win32/gdkglobals-win32.c
* gdk/win32/gdkgmain-win32.c: Move some globals that were used
only in gdkselection-win32.c to be local to that file.
* gdk/win32/gdkproperty-win32.c (gdk_property_change): Don't
bother checking if text to be placed on the clipboard consists of
only ASCII.
* gdk/win32/gdkselection-win32.c: Add static variables for a list
of GdkPixbuf-supported formats, well-known registered clipboard
formats for images, and for GdkAtoms for well-known image and text
formats.
(_gdk_win32_selection_init): Initialize above static variables.
(selection_property_store) (gdk_selection_property_get)
(_gdk_selection_property_delete): Don't use a FIFO of GdkSelProps
for a window after all, it breaks testtext. See bug #163844.
(gdk_selection_convert): When converting to the TARGETS format,
i.e. when the caller wants to know what clipboard formats are
available, if PNG is available we report just that and skip
CF_DIB, JPEG and GIF even if advertised.
If CF_UNICODETEXT is available, report only UTF8_STRING.
When converting to the UTF8_STRING format, i.e. when the caller
wants text from the clipboard, try just CF_UNICODETEXT. There is
no point in trying CF_TEXT as Windows will synthesize
CF_UNICODETEXT from CF_TEXT anyway, if some app has stored just
CF_TEXT.
When converting to the image/bmp format, i.e. when the caller
wants an CF_DIB image from the clipboard, we check if the DIB is a
version 3 32-bit BI_RGB one that is likely to actually contain
alpha in the "extra" bytes. Such a DIB is likely to have
premultiplied alpha even, at least in the case of Firefox 3 and
IE7. We then edit the DIB in-place into a version 5 one in
BI_BITFIELDS format and undo the alpha premultiplication.
In any case, prepend a BMP file header before letting go of the
data which will be fed to the gdk-pixbuf bmp loader by upper
levels.
(gdk_win32_selection_add_targets): If some kind of pixmap image
format is being added, actually advertise just PNG and
CF_DIB. Note that alpha won't be stored on the clipboard through
CF_DIB. This is because gdk-pixbuf's bmp loader doesn't save
alpha. Furthermore, few if any non-GTK+ Windows apps seem to
understand a version 5 DIB with proper alpha anyway.
(_gdk_win32_selection_convert_to_dib): Simplified muchly.
svn path=/trunk/; revision=22255
2008-10-04 Tor Lillqvist <tml@novell.com>
Bug 132501 - Make utility window translate to tool window in win32
Implement the utility window type hint. Such windows are kept on
top of other windows. Makes GIMP's toolbox and dock windows behave
more like in GNOME under metacity. Apply the same logic also to
windows marked with the dialog window type hint, and windows that
are transient for some other window. I'll call such windows
"transient-type" below.
* gdk/win32/gdkevents-win32.c (doesnt_want_key): Drop unused
variables.
(ensure_stacking_on_unminimize)
(ensure_stacking_on_window_pos_changing)
(ensure_stacking_on_activate_app): New functions to implement the
desired stacking order. Make sure that a window that is not
transient-type stays below any transient-type windows of the
application. When activating a non-transient-type window make sure
it rises as high as possible.
(gdk_event_translate): Call above functions on
WM_WINDOWPOSCHANGING, WM_ACTIVATEAPP and on WM_SIZE when
unminimizing. Improve debugging printout.
* gdk/win32/gdkwindow-win32.c (get_effective_window_decorations):
Handle utility windows like toolbar windows.
(gdk_window_new_internal) (update_style_bits): Give utility
windows the WS_EX_TOOLWINDOW extended style.
(gdk_window_set_title): If debugging "misc" or "events", make the
handle of top-level windows show up in their title bars. Very
useful when looking at debugging output.
(gdk_window_set_keep_above) (gdk_window_set_keep_below)
(gdk_window_set_modal_hint) (gdk_window_set_skip_taskbar_hint)
(gdk_window_set_skip_pager_hint): Add and improve debugging
printout.
(gdk_window_set_type_hint): Print hint symbolically in GDK_NOTE().
2008-10-04 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkmain-win32.c (_gdk_win32_window_exstyle_to_string)
(_gdk_win32_window_pos_bits_to_string): New debugging printout
functions. Decode the WS_EX_* and SWP_* bits.
* gdk/win32/gdkprivate-win32.h: Declare them. Define
GDK_DEBUG_MISC_OR_EVENTS for use in GDK_NOTE() to match either
"misc" or "events".
svn path=/trunk/; revision=21587
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
2008-03-10 Tor Lillqvist <tml@novell.com>
Bug 520286 - Non-deletable window has no minimize / maximize buttons
* gdk/win32/gdkmain-win32.c (_gdk_win32_window_style_to_string):
New debugging output function that decodes a set of WS_* bits.
* gdk/win32/gdkprivate-win32.h: Declare it.
* gdk/win32/gdkwindow-win32.c (update_single_system_menu_entry):
New function that enables or disables one menu entry in the system
menu of a top-level window. (The corresponding decoration will
then also be enabled or disabled (grayed).)
(update_style_bits): Do as the comment says and don't try to
update the window style based on the GdkWMFunctions set for the
window.
(update_system_menu): New function that enables or disables the
system menu entries based on a window's stored set of
GdkWMFunctions.
(gdk_window_set_functions): Call update_system_menu() instead of
update_style_bits().
svn path=/trunk/; revision=19743
2007-01-19 Tor Lillqvist <tml@novell.com>
Build Wintab support always on Windows. Don't require the Wintab
SDK.
* configure.in: Drop the --with-wintab option. Drop the
HAVE_WINTAB feature test macro and Automake variable.
* acconfig.h
* config.h.win32.in: Drop HAVE_WINTAB.
* gdk/win32/gdkevents-win32.c
* gdk/win32/gdkinput.c
* gdk/win32/gdkinput-win32.h
* gdk/win32/gdkinput-win32.c
* gdk/win32/gdkmain-win32.c: Make HAVE_WINTAB ifdef blocks
unconditional.
* gdk/win32/gdkinput-win32.c (_gdk_input_wintab_init_check): Try
to load wintab32.dll dynamically here. If it is found look up the
handful Wintab functions we use.
(rest of file): Use these function pointers instead of calling the
functions from wntab32x.lib. The code in wntab32x.lib did the same
thing anyway: tried to load wintab32.dll, and looked up the
addresses of the actual functions from it.
* gdk/Makefile.am
* gdk/win32/Makefile.am: Drop the libwntab32x hacks.
* gdk/win32/wintab.h
* gdk/win32/pktdef.h: New files. Copied from the Wintab
SDK. Copyright blurb says: "The text and information contained in
this file may be freely used, copied, or distributed without
compensation or licensing restrictions."
* README.win32: Update a bit. Remove the text about the Wintab
SDK.
svn path=/trunk/; revision=17186
2006-09-10 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkprivate-win32.h
* gdk/win32/gdkmain-win32.c
* gdk/win32/gdkwindow-win32.c: Define WINVER and _WIN32_WINNT as
0x0500 in gdkprivate-win32.h instead of doing it in two source
files. (#355212, Mike Edenfield)
* gdk/win32/gdkwindow-win32.c: We can also remove the ersatz
GetAncestor() for the _MSC_VER && WINVER < 0x0500 case, I hope.
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.
2005-11-01 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkprivate-win32.h
* gdk/win32/gdkglobals-win32.c
* gdk/win32/gdkmain-win32.c (_gdk_windowing_init): Add more
pre-interned GdkAtoms and pre-registered clipboard formats. Sort
their declarations, definitions and assignments into a more
logical and consistent order.
* gdk/win32/gdkmain-win32.c (_gdk_win32_cf_to_string): Include the
CF_ prefix for the predefined clipboard format names. Put quotes
around registered format names to distinguish them.
* gdk/win32/gdkproperty-win32.c (gdk_property_change): Return
immediately with a warning if the property type is STRING, TEXT,
COMPOUND_TEXT or SAVE_TARGETS, as these are X11-specific that we
should never pretend to handle on Win32. Handle only UTF8_STRING
here, other formats with delayed rendering. Use \uc1 instead of
\uc0 when generating Rich Text Format for easier testability on
XP, where WordPad misinterprets \uc0 encoded characters. Add more
GDK_NOTE debugging output for Clipboard operations.
* gdk/win32/gdkselection-win32.c: Debugging printout improvements.
(gdk_selection_convert): Don't pretent to handle STRING, just
UTF8_STRING. Streamline error handling, don't unnecessarily have a
GError which then isn't used for anything anyway if it gets set.
(gdk_win32_selection_add_targets): Skip also STRING, TEXT,
COMPOUND_TEXT and SAVE_TARGETS in addition to UTF8_STRING.
2005-04-04 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkmain.c (_gdk_win32_cf_to_string): New debugging
function, to log a clipboard format name symbolically.
(_gdk_win32_data_to_string): Also new, to log random data bytes.
Implement delayed rendering on Win32, specifically for transfering
images through the clipboard from GTK+ apps to other
apps (#168173, implementation by Ivan Wong):
* gdk/win32/gdkevents-win32.c (gdk_event_translate):
Handle WM_RENDERFORMAT.
* gdk/win32/gdkprivate-win32.h
* gdk/win32/gdkglobals-win32.c: Add _format_atom_table,
_delayed_rendering_data and _image_bmp.
* gdk/win32/gdkmain-win32.c: Initialize _image_bmp.
* gdk/win32/gdkproperty-win32.c (gdk_property_change):
Accept formats other than GDK_TARGET_STRING or _utf8_string, and
assume they are handled through delayed rendering.
* gdk/win32/gdkselection-win32.c (gdk_selection_convert):
Return all available formats (including those registered by GTK+
apps) on request_targets.
(gdk_selection_property_get): We should append a zero byte like
X11 does.
(gdk_win32_selection_add_targets): New function, for
gtkselection's use. Win32 requires that the clipboard owner
registers all valid formats even if the owner wants delayed
rendering.
(_gdk_win32_selection_convert_to_dib): New function. Convert
images to DIB using gdk-pixbuf.
* gdk/win32/gdkwin32.h: Declare gdk_win32_selection_add_targets().
* gtk/gtkselection.c (gtk_selection_add_target,
gtk_selection_add_targets): Call gdk_win32_selection_add_targets()
to register target formats.
* gdk/gdk.symbols: Add gdk_win32_selection_add_targets().
2005-03-16 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkprivate-win32.h
* gdk/win32/*.c: Drop global variable _gdk_root_window, just call
GetDesktopWindow(). Rename the GdkWindow* _gdk_parent_root to
_gdk_root.
* gdk/win32/gdkwindow-win32.h (GdkWindowImplWin32): Add
toplevel_window_type field.
* gdk/win32/gdkwindow-win32.c: As there is only one root
window in GDK on Win32, we can compare directly to _gdk_root
instead of checking the window type.
(gdk_window_reparent): When reparenting a child of the desktop
clear out the window decorations. Correspondingly, when
reparenting to the desktop, add decorations. As in the X11
backend, save the window type of a toplevel window when
reparenting, in case it is reparented back to toplevel.
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.
2005-03-15 Tor Lillqvist <tml@novell.com>
* gdk/win32/gdkmain-win32.c (_gdk_win32_key_to_string): New
debugging function. As GetKeyNameText() returns a localized key
name we need to convert it to UTF-8.
* gdk/win32/gdkprivate-win32.h: Declare it.
* gdk/win32/gdkevents-win32.c: Use it.
* gdk/win32/gdkwindow-win32.c (gdk_window_new_internal): Fix
handling of children of foreign windows. They should be child
windows from Windows's perspective, even if they are toplevel GDK
windows.
2004-10-31 Tor Lillqvist <tml@iki.fi>
* gdk/win32/gdkprivate-win32.h
* gdk/win32/gdkglobals-win32.c
* gdk/win32/gdkmain-win32.c: Remove _windows_version and the
IS_WIN_NT() macro.
* gdk/win32/*.c: Use G_WIN32_IS_NT_BASED() from GLib instead.
2004-10-01 Tor Lillqvist <tml@iki.fi>
* gdk/win32/gdkglobals-win32.c: Set _gdk_input_ignore_wintab to
FALSE, thus enabling tablet input by default.
* gdk/win32/gdkmain-win32.c (_gdk_windowing_args): Accept the
--use-wintab option again (but without effect, as this is now the
default, see above). (#153788)
* modules/input/gtkimcontextime.c: Numerous changes.
Remove the ifdef UNICODE conditionals. Always use the
wide-character Imm* API. It is present also in Windows 98 and
Me. (Not Windows 95, but I think we don't care about that.) Using
the multibyte API wouldn't work anyway on systems where the system
codepage doesn't support the language the user uses an IME for, so
for instance I wouldn't be able to test this module on my English
Windows 2000 although I do have C, J and K IMEs available.
Guard against IMM not being active, always check ImmGetContext()
returning NULL. Work to some extent even without any IME. Fixes
#153800 at least partially.
* modules/input/imime.c (ime_info): Rename to "ime" to match the
naming pattern of other input modules. Make it default for
ja:ko:zh only.
Sun Sep 5 17:14:16 2004 Matthias Clasen <maclas@gmx.de>
* gtk/gtkmain.c:
* gdk/gdk.c:
* gdk/x11/gdkmain-x11.c:
* gdk/win32/gdkmain-win32.c: Add descriptions for the
commandline arguments. The actual descriptions are mostly
taken from libbonoboui, so translators should be able to
copy existing translations from there.
2004-07-07 Tor Lillqvist <tml@iki.fi>
* gdk/win32/gdkdrawable-win32.c (gdk_win32_draw_text)
* gdk/win32/gdkfont-win32.c (gdk_text_extents)
* gdk/win32/gdkproperty-win32.c (find_common_locale,
gdk_property_change)
* gdk/win32/gdkselection-win32.c (gdk_selection_convert): Use
g_utf8_to_utf16() instead of the removed _gdk_utf8_to_ucs2() (see
below).
* gdk/win32/gdkglobals-win32.c
* gdk/win32/gdkmain-win32.c (_gdk_windowing_init)
* gdk/win3/gdkprivate-win32.h: Add a variable for the TARGETS
atom. Initialize it. Declare it. Drop the variable for the
COMPOUND_TEXT atom.
* gdk/win32/gdkim-win32.c (gdk_wcstombs): Don't return UTF-8. This
function is supposed to return the string in the locale's charset
and encoding. Use g_convert().
(gdk_mbstowcs): Similarily, don't take an UTF-8 string, but a
string in the locale's charset. Use g_convert().
(_gdk_ucs2_to_utf8, _gdk_utf8_to_wcs, _gdk_utf8_to_ucs2):
Delete. The UCS-2 functions didn't handle surrogates anyway. Use
GLib's UTF-16 functions instead. Windows uses UTF-16.
* gdk/win32/gdkprivate-win32.h: Remove declarations of the deleted
functions mentioned above.
* gdk/win32/gdkproperty-win32.c (gdk_property_change): Use CF_TEXT
also if the string is of type STRING, i.e. ISO-8859-1, and the
current codepage is 1252, and contains no C1 chars. Accept
also UTF8_STRING.
* gdk/win32/gdkselection-win32.c (_gdk_selection_property_store):
Mark as static. When storing STRING data, convert to
Latin-1. (#140537)
(gdk_selection_owner_set_for_display): Now that STRING is always
ISO-8859-1, use UTF8_STRING when sending the selection request
to ourselves.
(gdk_selection_convert): Handle also UTF8_STRING. (#140537, John
Ehresman)
(gdk_text_property_to_text_list_for_display): Make work more like
X11 version. Do obey the encoding parameter.
(gdk_string_to_compound_text_for_display,
gdk_utf8_to_compound_text_for_display): Don't even pretend
supporting COMPOUND_TEXT.
(gdk_utf8_to_string_target): Convert to ISO-8859-1, like on X11.
(sanitize_utf8): Zero-terminate string.
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>
2004-01-25 Tor Lillqvist <tml@iki.fi>
* gdk/win32/gdkproperty-win32.c (gdk_property_delete): If the
WM_TRANSIENT_FOR property is being deleted, set the owner of the
window to the root window (i.e., effectively unset it). (#132411)
* gdk/win32/gdkprivate-win32.h
* gdk/win32/gdkglobals-win32.c
* gdk/win32/gdkmain-win32.c: Declare, define and initialize
_wm_transient_for, a GdkAtom for WM_TRANSIENT_FOR.
* acconfig.h: Remove HAVE_WINSOCK_H, not used any longer.
