mirror of
https://gitlab.gnome.org/GNOME/gtk.git
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536fa88cd8
This adds support for OpenGL to the GDK Windows backend using the WGL API calls, which enables programs that uses the GTK+ GLArea widgets to work on Windows as well. This also adds a simple utility function to query for the version of OpenGL that is supported by the Windows system, like the one provided by the X11 backend. Many thanks to Alex (and Emmanuele, who started the OpenGL integration in GTK+) who offered advice and help along the way, as well as the X11 and Wayland backend for this work to refer to and to model upon. https://bugzilla.gnome.org/show_bug.cgi?id=740795
662 lines
19 KiB
C
662 lines
19 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2002,2005 Hans Breuer
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* Copyright (C) 2003 Tor Lillqvist
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include "gdk.h"
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#include "gdkprivate-win32.h"
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#include "gdkdisplay-win32.h"
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#include "gdkglcontext-win32.h"
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#include "gdkwin32display.h"
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#include "gdkwin32screen.h"
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#include "gdkwin32window.h"
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#include "gdkwin32.h"
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#define HAVE_MONITOR_INFO
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#if defined(_MSC_VER) && (WINVER < 0x500) && (WINVER > 0x0400)
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#include <multimon.h>
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#elif defined(_MSC_VER) && (WINVER <= 0x0400)
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#undef HAVE_MONITOR_INFO
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#endif
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static gulong
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gdk_win32_display_get_next_serial (GdkDisplay *display)
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{
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return 0;
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}
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#ifdef HAVE_MONITOR_INFO
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static BOOL CALLBACK
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count_monitor (HMONITOR hmonitor,
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HDC hdc,
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LPRECT rect,
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LPARAM data)
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{
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gint *n = (gint *) data;
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(*n)++;
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return TRUE;
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}
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static BOOL CALLBACK
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enum_monitor (HMONITOR hmonitor,
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HDC hdc,
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LPRECT rect,
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LPARAM data)
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{
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/* The struct MONITORINFOEX definition is for some reason different
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* in the winuser.h bundled with mingw64 from that in MSDN and the
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* official 32-bit mingw (the MONITORINFO part is in a separate "mi"
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* member). So to keep this easily compileable with either, repeat
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* the MSDN definition it here.
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*/
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typedef struct tagMONITORINFOEXA2 {
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DWORD cbSize;
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RECT rcMonitor;
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RECT rcWork;
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DWORD dwFlags;
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CHAR szDevice[CCHDEVICENAME];
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} MONITORINFOEXA2;
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MONITORINFOEXA2 monitor_info;
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HDC hDC;
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gint *index = (gint *) data;
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GdkWin32Monitor *monitor;
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g_assert (*index < _gdk_num_monitors);
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monitor = _gdk_monitors + *index;
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monitor_info.cbSize = sizeof (MONITORINFOEXA2);
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GetMonitorInfoA (hmonitor, (MONITORINFO *) &monitor_info);
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#ifndef MONITORINFOF_PRIMARY
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#define MONITORINFOF_PRIMARY 1
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#endif
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monitor->name = g_strdup (monitor_info.szDevice);
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hDC = CreateDCA ("DISPLAY", monitor_info.szDevice, NULL, NULL);
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monitor->width_mm = GetDeviceCaps (hDC, HORZSIZE);
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monitor->height_mm = GetDeviceCaps (hDC, VERTSIZE);
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DeleteDC (hDC);
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monitor->rect.x = monitor_info.rcMonitor.left;
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monitor->rect.y = monitor_info.rcMonitor.top;
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monitor->rect.width = monitor_info.rcMonitor.right - monitor_info.rcMonitor.left;
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monitor->rect.height = monitor_info.rcMonitor.bottom - monitor_info.rcMonitor.top;
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if (monitor_info.dwFlags & MONITORINFOF_PRIMARY &&
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*index != 0)
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{
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/* Put primary monitor at index 0, just in case somebody needs
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* to know which one is the primary.
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*/
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GdkWin32Monitor temp = *monitor;
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*monitor = _gdk_monitors[0];
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_gdk_monitors[0] = temp;
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}
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(*index)++;
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return TRUE;
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}
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#endif /* HAVE_MONITOR_INFO */
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void
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_gdk_monitor_init (void)
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{
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#ifdef HAVE_MONITOR_INFO
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gint i, index;
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_gdk_num_monitors = 0;
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EnumDisplayMonitors (NULL, NULL, count_monitor, (LPARAM) &_gdk_num_monitors);
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_gdk_monitors = g_renew (GdkWin32Monitor, _gdk_monitors, _gdk_num_monitors);
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index = 0;
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EnumDisplayMonitors (NULL, NULL, enum_monitor, (LPARAM) &index);
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_gdk_offset_x = G_MININT;
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_gdk_offset_y = G_MININT;
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/* Calculate offset */
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for (i = 0; i < _gdk_num_monitors; i++)
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{
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_gdk_offset_x = MAX (_gdk_offset_x, -_gdk_monitors[i].rect.x);
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_gdk_offset_y = MAX (_gdk_offset_y, -_gdk_monitors[i].rect.y);
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}
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GDK_NOTE (MISC, g_print ("Multi-monitor offset: (%d,%d)\n",
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_gdk_offset_x, _gdk_offset_y));
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/* Translate monitor coords into GDK coordinate space */
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for (i = 0; i < _gdk_num_monitors; i++)
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{
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_gdk_monitors[i].rect.x += _gdk_offset_x;
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_gdk_monitors[i].rect.y += _gdk_offset_y;
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GDK_NOTE (MISC, g_print ("Monitor %d: %dx%d@%+d%+d\n",
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i, _gdk_monitors[i].rect.width,
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_gdk_monitors[i].rect.height,
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_gdk_monitors[i].rect.x,
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_gdk_monitors[i].rect.y));
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}
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#else
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HDC hDC;
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_gdk_num_monitors = 1;
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_gdk_monitors = g_renew (GdkWin32Monitor, _gdk_monitors, 1);
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_gdk_monitors[0].name = g_strdup ("DISPLAY");
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hDC = GetDC (NULL);
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_gdk_monitors[0].width_mm = GetDeviceCaps (hDC, HORZSIZE);
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_gdk_monitors[0].height_mm = GetDeviceCaps (hDC, VERTSIZE);
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ReleaseDC (NULL, hDC);
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_gdk_monitors[0].rect.x = 0;
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_gdk_monitors[0].rect.y = 0;
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_gdk_monitors[0].rect.width = GetSystemMetrics (SM_CXSCREEN);
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_gdk_monitors[0].rect.height = GetSystemMetrics (SM_CYSCREEN);
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_gdk_offset_x = 0;
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_gdk_offset_y = 0;
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#endif
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}
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GdkDisplay *
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_gdk_win32_display_open (const gchar *display_name)
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{
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GDK_NOTE (MISC, g_print ("gdk_display_open: %s\n", (display_name ? display_name : "NULL")));
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if (display_name == NULL ||
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g_ascii_strcasecmp (display_name,
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gdk_display_get_name (_gdk_display)) == 0)
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{
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if (_gdk_display != NULL)
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{
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GDK_NOTE (MISC, g_print ("... return _gdk_display\n"));
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return _gdk_display;
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}
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}
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else
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{
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GDK_NOTE (MISC, g_print ("... return NULL\n"));
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return NULL;
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}
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_gdk_display = g_object_new (GDK_TYPE_WIN32_DISPLAY, NULL);
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_gdk_screen = g_object_new (GDK_TYPE_WIN32_SCREEN, NULL);
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_gdk_monitor_init ();
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_gdk_visual_init (_gdk_screen);
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_gdk_windowing_window_init (_gdk_screen);
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_gdk_events_init ();
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_gdk_input_init (_gdk_display);
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_gdk_dnd_init ();
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/* Precalculate display name */
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(void) gdk_display_get_name (_gdk_display);
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g_signal_emit_by_name (_gdk_display, "opened");
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GDK_NOTE (MISC, g_print ("... _gdk_display now set up\n"));
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return _gdk_display;
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}
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G_DEFINE_TYPE (GdkWin32Display, gdk_win32_display, GDK_TYPE_DISPLAY)
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static const gchar *
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gdk_win32_display_get_name (GdkDisplay *display)
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{
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HDESK hdesk = GetThreadDesktop (GetCurrentThreadId ());
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char dummy;
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char *desktop_name;
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HWINSTA hwinsta = GetProcessWindowStation ();
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char *window_station_name;
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DWORD n;
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DWORD session_id;
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char *display_name;
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static const char *display_name_cache = NULL;
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typedef BOOL (WINAPI *PFN_ProcessIdToSessionId) (DWORD, DWORD *);
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PFN_ProcessIdToSessionId processIdToSessionId;
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g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
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if (display_name_cache != NULL)
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return display_name_cache;
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n = 0;
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GetUserObjectInformation (hdesk, UOI_NAME, &dummy, 0, &n);
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if (n == 0)
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desktop_name = "Default";
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else
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{
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n++;
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desktop_name = g_alloca (n + 1);
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memset (desktop_name, 0, n + 1);
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if (!GetUserObjectInformation (hdesk, UOI_NAME, desktop_name, n, &n))
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desktop_name = "Default";
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}
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n = 0;
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GetUserObjectInformation (hwinsta, UOI_NAME, &dummy, 0, &n);
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if (n == 0)
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window_station_name = "WinSta0";
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else
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{
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n++;
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window_station_name = g_alloca (n + 1);
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memset (window_station_name, 0, n + 1);
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if (!GetUserObjectInformation (hwinsta, UOI_NAME, window_station_name, n, &n))
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window_station_name = "WinSta0";
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}
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processIdToSessionId = (PFN_ProcessIdToSessionId) GetProcAddress (GetModuleHandle ("kernel32.dll"), "ProcessIdToSessionId");
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if (!processIdToSessionId || !processIdToSessionId (GetCurrentProcessId (), &session_id))
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session_id = 0;
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display_name = g_strdup_printf ("%ld\\%s\\%s",
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session_id,
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window_station_name,
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desktop_name);
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GDK_NOTE (MISC, g_print ("gdk_win32_display_get_name: %s\n", display_name));
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display_name_cache = display_name;
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return display_name_cache;
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}
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static GdkScreen *
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gdk_win32_display_get_default_screen (GdkDisplay *display)
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{
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g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
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return _gdk_screen;
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}
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static GdkWindow *
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gdk_win32_display_get_default_group (GdkDisplay *display)
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{
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g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
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g_warning ("gdk_display_get_default_group not yet implemented");
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return NULL;
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}
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static gboolean
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gdk_win32_display_supports_selection_notification (GdkDisplay *display)
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{
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g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
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return TRUE;
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}
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static HWND _hwnd_next_viewer = NULL;
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static int debug_indent = 0;
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/*
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* maybe this should be integrated with the default message loop - or maybe not ;-)
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*/
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static LRESULT CALLBACK
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inner_clipboard_window_procedure (HWND hwnd,
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UINT message,
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WPARAM wparam,
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LPARAM lparam)
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{
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switch (message)
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{
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case WM_DESTROY: /* remove us from chain */
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{
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ChangeClipboardChain (hwnd, _hwnd_next_viewer);
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PostQuitMessage (0);
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return 0;
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}
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case WM_CHANGECBCHAIN:
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{
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HWND hwndRemove = (HWND) wparam; /* handle of window being removed */
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HWND hwndNext = (HWND) lparam; /* handle of next window in chain */
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if (hwndRemove == _hwnd_next_viewer)
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_hwnd_next_viewer = hwndNext == hwnd ? NULL : hwndNext;
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else if (_hwnd_next_viewer != NULL)
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return SendMessage (_hwnd_next_viewer, message, wparam, lparam);
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return 0;
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}
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#ifdef WM_CLIPBOARDUPDATE
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case WM_CLIPBOARDUPDATE:
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#endif
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case WM_DRAWCLIPBOARD:
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{
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int success;
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HWND hwndOwner;
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#ifdef G_ENABLE_DEBUG
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UINT nFormat = 0;
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#endif
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GdkEvent *event;
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GdkWindow *owner;
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success = OpenClipboard (hwnd);
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g_return_val_if_fail (success, 0);
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hwndOwner = GetClipboardOwner ();
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owner = gdk_win32_window_lookup_for_display (_gdk_display, hwndOwner);
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if (owner == NULL)
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owner = gdk_win32_window_foreign_new_for_display (_gdk_display, hwndOwner);
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GDK_NOTE (DND, g_print (" drawclipboard owner: %p", hwndOwner));
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#ifdef G_ENABLE_DEBUG
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if (_gdk_debug_flags & GDK_DEBUG_DND)
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{
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while ((nFormat = EnumClipboardFormats (nFormat)) != 0)
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g_print ("%s ", _gdk_win32_cf_to_string (nFormat));
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}
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#endif
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GDK_NOTE (DND, g_print (" \n"));
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event = gdk_event_new (GDK_OWNER_CHANGE);
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event->owner_change.window = _gdk_root;
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event->owner_change.owner = owner;
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event->owner_change.reason = GDK_OWNER_CHANGE_NEW_OWNER;
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event->owner_change.selection = GDK_SELECTION_CLIPBOARD;
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event->owner_change.time = _gdk_win32_get_next_tick (0);
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event->owner_change.selection_time = GDK_CURRENT_TIME;
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_gdk_win32_append_event (event);
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CloseClipboard ();
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if (_hwnd_next_viewer != NULL)
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return SendMessage (_hwnd_next_viewer, message, wparam, lparam);
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/* clear error to avoid confusing SetClipboardViewer() return */
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SetLastError (0);
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return 0;
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}
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default:
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/* Otherwise call DefWindowProcW(). */
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GDK_NOTE (EVENTS, g_print (" DefWindowProcW"));
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return DefWindowProc (hwnd, message, wparam, lparam);
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}
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}
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static LRESULT CALLBACK
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_clipboard_window_procedure (HWND hwnd,
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UINT message,
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WPARAM wparam,
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LPARAM lparam)
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{
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LRESULT retval;
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GDK_NOTE (EVENTS, g_print ("%s%*s%s %p",
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(debug_indent > 0 ? "\n" : ""),
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debug_indent, "",
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_gdk_win32_message_to_string (message), hwnd));
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debug_indent += 2;
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retval = inner_clipboard_window_procedure (hwnd, message, wparam, lparam);
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debug_indent -= 2;
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GDK_NOTE (EVENTS, g_print (" => %" G_GINT64_FORMAT "%s", (gint64) retval, (debug_indent == 0 ? "\n" : "")));
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return retval;
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}
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/*
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* Creates a hidden window and adds it to the clipboard chain
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*/
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static HWND
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_gdk_win32_register_clipboard_notification (void)
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{
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WNDCLASS wclass = { 0, };
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HWND hwnd;
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ATOM klass;
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wclass.lpszClassName = "GdkClipboardNotification";
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wclass.lpfnWndProc = _clipboard_window_procedure;
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wclass.hInstance = _gdk_app_hmodule;
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klass = RegisterClass (&wclass);
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if (!klass)
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return NULL;
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hwnd = CreateWindow (MAKEINTRESOURCE (klass),
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NULL, WS_POPUP,
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0, 0, 0, 0, NULL, NULL,
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_gdk_app_hmodule, NULL);
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if (!hwnd)
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goto failed;
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SetLastError (0);
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_hwnd_next_viewer = SetClipboardViewer (hwnd);
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if (_hwnd_next_viewer == NULL && GetLastError() != 0)
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goto failed;
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/* FIXME: http://msdn.microsoft.com/en-us/library/ms649033(v=VS.85).aspx */
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/* This is only supported by Vista, and not yet by mingw64 */
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/* if (AddClipboardFormatListener (hwnd) == FALSE) */
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/* goto failed; */
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return hwnd;
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failed:
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g_critical ("Failed to install clipboard viewer");
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UnregisterClass (MAKEINTRESOURCE (klass), _gdk_app_hmodule);
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return NULL;
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}
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static gboolean
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gdk_win32_display_request_selection_notification (GdkDisplay *display,
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GdkAtom selection)
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{
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static HWND hwndViewer = NULL;
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gboolean ret = FALSE;
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GDK_NOTE (DND,
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g_print ("gdk_display_request_selection_notification (..., %s)",
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gdk_atom_name (selection)));
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if (selection == GDK_SELECTION_CLIPBOARD ||
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selection == GDK_SELECTION_PRIMARY)
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{
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if (!hwndViewer)
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{
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hwndViewer = _gdk_win32_register_clipboard_notification ();
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GDK_NOTE (DND, g_print (" registered"));
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}
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ret = (hwndViewer != NULL);
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}
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else
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{
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GDK_NOTE (DND, g_print (" unsupported"));
|
|
ret = FALSE;
|
|
}
|
|
|
|
GDK_NOTE (DND, g_print (" -> %s\n", ret ? "TRUE" : "FALSE"));
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gdk_win32_display_supports_clipboard_persistence (GdkDisplay *display)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gdk_win32_display_store_clipboard (GdkDisplay *display,
|
|
GdkWindow *clipboard_window,
|
|
guint32 time_,
|
|
const GdkAtom *targets,
|
|
gint n_targets)
|
|
{
|
|
}
|
|
|
|
static gboolean
|
|
gdk_win32_display_supports_shapes (GdkDisplay *display)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gdk_win32_display_supports_input_shapes (GdkDisplay *display)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_DISPLAY (display), FALSE);
|
|
|
|
/* Partially supported, see WM_NCHITTEST handler. */
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gdk_win32_display_supports_composite (GdkDisplay *display)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gdk_win32_display_beep (GdkDisplay *display)
|
|
{
|
|
g_return_if_fail (display == gdk_display_get_default());
|
|
if (!MessageBeep (-1))
|
|
Beep(1000, 50);
|
|
}
|
|
|
|
static void
|
|
gdk_win32_display_flush (GdkDisplay * display)
|
|
{
|
|
g_return_if_fail (display == _gdk_display);
|
|
|
|
GdiFlush ();
|
|
}
|
|
|
|
|
|
static void
|
|
gdk_win32_display_sync (GdkDisplay * display)
|
|
{
|
|
g_return_if_fail (display == _gdk_display);
|
|
|
|
GdiFlush ();
|
|
}
|
|
|
|
static void
|
|
gdk_win32_display_dispose (GObject *object)
|
|
{
|
|
}
|
|
|
|
static void
|
|
gdk_win32_display_finalize (GObject *object)
|
|
{
|
|
}
|
|
|
|
static void
|
|
gdk_win32_display_init(GdkWin32Display *display)
|
|
{
|
|
}
|
|
|
|
static void
|
|
gdk_win32_display_before_process_all_updates (GdkDisplay *display)
|
|
{
|
|
/* nothing */
|
|
}
|
|
static void
|
|
gdk_win32_display_after_process_all_updates (GdkDisplay *display)
|
|
{
|
|
/* nothing */
|
|
}
|
|
static void
|
|
gdk_win32_display_notify_startup_complete (GdkDisplay *display,
|
|
const gchar *startup_id)
|
|
{
|
|
/* nothing */
|
|
}
|
|
static void
|
|
gdk_win32_display_push_error_trap (GdkDisplay *display)
|
|
{
|
|
/* nothing */
|
|
}
|
|
static gint
|
|
gdk_win32_display_pop_error_trap (GdkDisplay *display,
|
|
gboolean ignored)
|
|
{
|
|
return 0;
|
|
}
|
|
static void
|
|
gdk_win32_display_class_init (GdkWin32DisplayClass *klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (klass);
|
|
|
|
object_class->dispose = gdk_win32_display_dispose;
|
|
object_class->finalize = gdk_win32_display_finalize;
|
|
|
|
display_class->window_type = GDK_TYPE_WIN32_WINDOW;
|
|
|
|
display_class->get_name = gdk_win32_display_get_name;
|
|
display_class->get_default_screen = gdk_win32_display_get_default_screen;
|
|
display_class->beep = gdk_win32_display_beep;
|
|
display_class->sync = gdk_win32_display_sync;
|
|
display_class->flush = gdk_win32_display_flush;
|
|
display_class->has_pending = _gdk_win32_display_has_pending;
|
|
display_class->queue_events = _gdk_win32_display_queue_events;
|
|
display_class->get_default_group = gdk_win32_display_get_default_group;
|
|
|
|
display_class->supports_selection_notification = gdk_win32_display_supports_selection_notification;
|
|
display_class->request_selection_notification = gdk_win32_display_request_selection_notification;
|
|
display_class->supports_clipboard_persistence = gdk_win32_display_supports_clipboard_persistence;
|
|
display_class->store_clipboard = gdk_win32_display_store_clipboard;
|
|
display_class->supports_shapes = gdk_win32_display_supports_shapes;
|
|
display_class->supports_input_shapes = gdk_win32_display_supports_input_shapes;
|
|
display_class->supports_composite = gdk_win32_display_supports_composite;
|
|
|
|
display_class->list_devices = _gdk_win32_display_list_devices;
|
|
//? display_class->get_app_launch_context = _gdk_win32_display_get_app_launch_context;
|
|
display_class->get_cursor_for_type = _gdk_win32_display_get_cursor_for_type;
|
|
display_class->get_cursor_for_name = _gdk_win32_display_get_cursor_for_name;
|
|
display_class->get_cursor_for_surface = _gdk_win32_display_get_cursor_for_surface;
|
|
display_class->get_default_cursor_size = _gdk_win32_display_get_default_cursor_size;
|
|
display_class->get_maximal_cursor_size = _gdk_win32_display_get_maximal_cursor_size;
|
|
display_class->supports_cursor_alpha = _gdk_win32_display_supports_cursor_alpha;
|
|
display_class->supports_cursor_color = _gdk_win32_display_supports_cursor_color;
|
|
|
|
display_class->before_process_all_updates = gdk_win32_display_before_process_all_updates;
|
|
display_class->after_process_all_updates = gdk_win32_display_after_process_all_updates;
|
|
display_class->get_next_serial = gdk_win32_display_get_next_serial;
|
|
display_class->notify_startup_complete = gdk_win32_display_notify_startup_complete;
|
|
display_class->create_window_impl = _gdk_win32_display_create_window_impl;
|
|
|
|
display_class->get_keymap = _gdk_win32_display_get_keymap;
|
|
display_class->push_error_trap = gdk_win32_display_push_error_trap;
|
|
display_class->pop_error_trap = gdk_win32_display_pop_error_trap;
|
|
display_class->get_selection_owner = _gdk_win32_display_get_selection_owner;
|
|
display_class->set_selection_owner = _gdk_win32_display_set_selection_owner;
|
|
display_class->send_selection_notify = _gdk_win32_display_send_selection_notify;
|
|
display_class->get_selection_property = _gdk_win32_display_get_selection_property;
|
|
display_class->convert_selection = _gdk_win32_display_convert_selection;
|
|
display_class->text_property_to_utf8_list = _gdk_win32_display_text_property_to_utf8_list;
|
|
display_class->utf8_to_string_target = _gdk_win32_display_utf8_to_string_target;
|
|
display_class->make_gl_context_current = _gdk_win32_display_make_gl_context_current;
|
|
|
|
_gdk_win32_windowing_init ();
|
|
}
|