src/gtk/eggtrayicon.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /* eggtrayicon.c
   3  * Copyright (C) 2002 Anders Carlsson <andersca@gnu.org>
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  */
  20
  21 /*
  22
  23 Permission to use this file under wxWindows license given by
  24 copyright holder:
  25 --------
  26 From andersca@gnu.org Tue Dec  9 13:01:56 2003
  27 Return-path: <andersca@gnu.org>
  28 Envelope-to: vasek@localhost
  29 Delivery-date: Tue, 09 Dec 2003 13:04:35 +0100
  30 Received: from localhost
  31         ([127.0.0.1] helo=amavis ident=amavis)
  32         by armitage with esmtp (Exim 3.35 #1)
  33         id 1ATgbS-0001Gs-00
  34         for vasek@localhost; Tue, 09 Dec 2003 13:04:35 +0100
  35 Received: from armitage ([127.0.0.1])
  36         by amavis (armitage [127.0.0.1]) (amavisd-new, port 10024) with ESMTP
  37         id 04227-09 for <vasek@localhost>;
  38         Tue, 9 Dec 2003 13:04:11 +0100 (CET)
  39 Received: from localhost ([127.0.0.1] ident=fetchmail)
  40         by armitage with esmtp (Exim 3.35 #1)
  41         id 1ATgb5-0001GY-00
  42         for vasek@localhost; Tue, 09 Dec 2003 13:04:11 +0100
  43 Delivered-To: alias-email-slavikvaclav@seznam.cz
  44 Received: from pop3.seznam.cz [212.80.76.45]
  45         by localhost with POP3 (fetchmail-5.9.11)
  46         for vasek@localhost (single-drop); Tue, 09 Dec 2003 13:04:11 +0100 (CET)
  47 Received: (qmail 9861 invoked from network); 9 Dec 2003 12:02:17 -0000
  48 Received: from unknown (HELO maxipes.logix.cz) (81.0.234.97)
  49   by buster.go.seznam.cz with SMTP; 9 Dec 2003 12:02:17 -0000
  50 Received: by maxipes.logix.cz (Postfix, from userid 604)
  51         id 37E6D29A51; Tue,  9 Dec 2003 13:02:16 +0100 (CET)
  52 X-Original-To: vaclav.slavik@matfyz.cz
  53 Received: from mail.csbnet.se (glutus.csbnet.se [193.11.248.2])
  54         by maxipes.logix.cz (Postfix) with ESMTP id 90D6A29A51
  55         for <vaclav.slavik@matfyz.cz>; Tue,  9 Dec 2003 13:02:15 +0100 (CET)
  56 Received: by mail.csbnet.se (Postfix, from userid 8)
  57         id 7AA7F10A6D7; Tue,  9 Dec 2003 13:02:14 +0100 (CET)
  58 Received: from carbon.csbnet.se (carbon.csbnet.se [193.11.248.180])
  59         by mail.csbnet.se (Postfix) with ESMTP id A190F10A71D
  60         for <vaclav.slavik@matfyz.cz>; Tue,  9 Dec 2003 13:01:56 +0100 (CET)
  61 Subject: Re: eggtrayicon.{c,h} licensing
  62 From: Anders Carlsson <andersca@gnu.org>
  63 To: Vaclav Slavik <vaclav.slavik@matfyz.cz>
  64 In-Reply-To: <200312091142.54542.vaclav.slavik@matfyz.cz>
  65 References: <200312091142.54542.vaclav.slavik@matfyz.cz>
  66 Content-Type: text/plain
  67 Message-Id: <1070971316.30989.0.camel@carbon.csbnet.se>
  68 Mime-Version: 1.0
  69 X-Mailer: Ximian Evolution 1.5
  70 Date: Tue, 09 Dec 2003 13:01:56 +0100
  71 Content-Transfer-Encoding: 7bit
  72 X-Scanned-By: CLAM (openantivirus DB) antivirus scanner at mail.csbnet.se
  73 X-Virus-Scanned: by amavisd-new-20030616-p5 (Debian) at armitage
  74 X-Spam-Status: No, hits=-4.9 tagged_above=-999.0 required=6.3 tests=BAYES_00
  75 X-Spam-Level:
  76 Status: R
  77 X-Status: N
  78 X-KMail-EncryptionState:
  79 X-KMail-SignatureState:
  80
  81 On tis, 2003-12-09 at 11:42 +0100, Vaclav Slavik wrote:
  82 > Hi,
  83 >
  84 > I'm working on the wxWindows cross-platform GUI toolkit
  85 > (http://www.wxwindows.org) which uses GTK+ and it would save me a lot
  86 > of time if I could use your eggtrayicon code to implement tray icons
  87 > on X11. Unfortunately I can't use it right now because it is not part
  88 > of any library we could depend on (as we do depend on GTK+) and would
  89 > have to be included in our sources and it is under the LGPL license.
  90 > The problem is that wxWindows' license is more permissive (see
  91 > http://www.opensource.org/licenses/wxwindows.php for details) and so
  92 > I can't take your code and put it under wxWindows License. And I
  93 > can't put code that can't be used under the terms of wxWindows
  94 > License into wxWindows either. Do you think it would be possible to
  95 > get permission to include eggtrayicon under wxWindows license?
  96 >
  97 > Thanks,
  98 > Vaclav
  99 >
 100
 101 Sure, that's fine by me.
 102
 103 Anders
 104 --------
 105 */
 106
 107 #include "wx/platform.h"
 108
 109 #if wxUSE_TASKBARICON
 110
 111 #include <gtk/gtkversion.h>
 112 #if GTK_CHECK_VERSION(2, 1, 0)
 113
 114 #include <string.h>
 115 #include "eggtrayicon.h"
 116
 117 #include <gdkconfig.h>
 118 #if defined (GDK_WINDOWING_X11)
 119 #include <gdk/gdkx.h>
 120 #include <X11/Xatom.h>
 121 #elif defined (GDK_WINDOWING_WIN32)
 122 #include <gdk/gdkwin32.h>
 123 #endif
 124
 125
 126 #define SYSTEM_TRAY_REQUEST_DOCK    0
 127 #define SYSTEM_TRAY_BEGIN_MESSAGE   1
 128 #define SYSTEM_TRAY_CANCEL_MESSAGE  2
 129
 130 #define SYSTEM_TRAY_ORIENTATION_HORZ 0
 131 #define SYSTEM_TRAY_ORIENTATION_VERT 1
 132
 133 enum {
 134   PROP_0,
 135   PROP_ORIENTATION
 136 };
 137
 138 static GtkPlugClass *parent_class = NULL;
 139
 140 static void egg_tray_icon_init (EggTrayIcon *icon);
 141 static void egg_tray_icon_class_init (EggTrayIconClass *klass);
 142
 143 static void egg_tray_icon_get_property (GObject    *object,
 144                                         guint       prop_id,
 145                                         GValue     *value,
 146                                         GParamSpec *pspec);
 147
 148 static void egg_tray_icon_realize   (GtkWidget *widget);
 149 static void egg_tray_icon_unrealize (GtkWidget *widget);
 150
 151 static void egg_tray_icon_add (GtkContainer *container,
 152                                GtkWidget    *widget);
 153
 154 #ifdef GDK_WINDOWING_X11
 155 static void egg_tray_icon_update_manager_window    (EggTrayIcon *icon,
 156                                                     gboolean     dock_if_realized);
 157 static void egg_tray_icon_manager_window_destroyed (EggTrayIcon *icon);
 158 #endif
 159
 160 GType
 161 egg_tray_icon_get_type (void)
 162 {
 163   static GType our_type = 0;
 164
 165   if (our_type == 0)
 166     {
 167       static const GTypeInfo our_info =
 168       {
 169         sizeof (EggTrayIconClass),
 170         (GBaseInitFunc) NULL,
 171         (GBaseFinalizeFunc) NULL,
 172         (GClassInitFunc) egg_tray_icon_class_init,
 173         NULL, /* class_finalize */
 174         NULL, /* class_data */
 175         sizeof (EggTrayIcon),
 176         0,    /* n_preallocs */
 177         (GInstanceInitFunc) egg_tray_icon_init
 178       };
 179
 180       our_type = g_type_register_static (GTK_TYPE_PLUG, "EggTrayIcon", &our_info, 0);
 181     }
 182
 183   return our_type;
 184 }
 185
 186 static void
 187 egg_tray_icon_init (EggTrayIcon *icon)
 188 {
 189   icon->stamp = 1;
 190   icon->orientation = GTK_ORIENTATION_HORIZONTAL;
 191
 192   gtk_widget_add_events (GTK_WIDGET (icon), GDK_PROPERTY_CHANGE_MASK);
 193 }
 194
 195 static void
 196 egg_tray_icon_class_init (EggTrayIconClass *klass)
 197 {
 198   GObjectClass *gobject_class = (GObjectClass *)klass;
 199   GtkWidgetClass *widget_class = (GtkWidgetClass *)klass;
 200   GtkContainerClass *container_class = (GtkContainerClass *)klass;
 201
 202   parent_class = g_type_class_peek_parent (klass);
 203
 204   gobject_class->get_property = egg_tray_icon_get_property;
 205
 206   widget_class->realize   = egg_tray_icon_realize;
 207   widget_class->unrealize = egg_tray_icon_unrealize;
 208
 209   container_class->add = egg_tray_icon_add;
 210
 211   g_object_class_install_property (gobject_class,
 212                                    PROP_ORIENTATION,
 213                                    g_param_spec_enum ("orientation",
 214                                                       "Orientation",
 215                                                       "The orientation of the tray.",
 216                                                       GTK_TYPE_ORIENTATION,
 217                                                       GTK_ORIENTATION_HORIZONTAL,
 218                                                       G_PARAM_READABLE));
 219 }
 220
 221 static void
 222 egg_tray_icon_get_property (GObject    *object,
 223                             guint       prop_id,
 224                             GValue     *value,
 225                             GParamSpec *pspec)
 226 {
 227   EggTrayIcon *icon = EGG_TRAY_ICON (object);
 228
 229   switch (prop_id)
 230     {
 231     case PROP_ORIENTATION:
 232       g_value_set_enum (value, icon->orientation);
 233       break;
 234     default:
 235       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 236       break;
 237     }
 238 }
 239
 240 #ifdef GDK_WINDOWING_X11
 241
 242 static void
 243 egg_tray_icon_get_orientation_property (EggTrayIcon *icon)
 244 {
 245   Display *xdisplay;
 246   Atom type;
 247   int format;
 248   union {
 249         gulong *prop;
 250         guchar *prop_ch;
 251   } prop = { NULL };
 252   gulong nitems;
 253   gulong bytes_after;
 254   int error, result;
 255
 256   g_assert (icon->manager_window != None);
 257
 258   xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
 259
 260   gdk_error_trap_push ();
 261   type = None;
 262   result = XGetWindowProperty (xdisplay,
 263                                icon->manager_window,
 264                                icon->orientation_atom,
 265                                0, G_MAXLONG, FALSE,
 266                                XA_CARDINAL,
 267                                &type, &format, &nitems,
 268                                &bytes_after, &(prop.prop_ch));
 269   error = gdk_error_trap_pop ();
 270
 271   if (error || result != Success)
 272     return;
 273
 274   if (type == XA_CARDINAL)
 275     {
 276       GtkOrientation orientation;
 277
 278       orientation = (prop.prop [0] == SYSTEM_TRAY_ORIENTATION_HORZ) ?
 279                                         GTK_ORIENTATION_HORIZONTAL :
 280                                         GTK_ORIENTATION_VERTICAL;
 281
 282       if (icon->orientation != orientation)
 283         {
 284           icon->orientation = orientation;
 285
 286           g_object_notify (G_OBJECT (icon), "orientation");
 287         }
 288     }
 289
 290   if (prop.prop)
 291     XFree (prop.prop);
 292 }
 293
 294 static GdkFilterReturn
 295 egg_tray_icon_manager_filter (GdkXEvent *xevent, GdkEvent *event, gpointer user_data)
 296 {
 297   EggTrayIcon *icon = user_data;
 298   XEvent *xev = (XEvent *)xevent;
 299
 300   if (xev->xany.type == ClientMessage &&
 301       xev->xclient.message_type == icon->manager_atom &&
 302       xev->xclient.data.l[1] == icon->selection_atom)
 303     {
 304       egg_tray_icon_update_manager_window (icon, TRUE);
 305     }
 306   else if (xev->xany.window == icon->manager_window)
 307     {
 308       if (xev->xany.type == PropertyNotify &&
 309           xev->xproperty.atom == icon->orientation_atom)
 310         {
 311           egg_tray_icon_get_orientation_property (icon);
 312         }
 313       if (xev->xany.type == DestroyNotify)
 314         {
 315           egg_tray_icon_manager_window_destroyed (icon);
 316         }
 317     }
 318   return GDK_FILTER_CONTINUE;
 319 }
 320
 321 #endif
 322
 323 static void
 324 egg_tray_icon_unrealize (GtkWidget *widget)
 325 {
 326 #ifdef GDK_WINDOWING_X11
 327   EggTrayIcon *icon = EGG_TRAY_ICON (widget);
 328   GdkWindow *root_window;
 329
 330   if (icon->manager_window != None)
 331     {
 332       GdkWindow *gdkwin;
 333
 334       gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (widget),
 335                                               icon->manager_window);
 336
 337       gdk_window_remove_filter (gdkwin, egg_tray_icon_manager_filter, icon);
 338     }
 339
 340   root_window = gdk_screen_get_root_window (gtk_widget_get_screen (widget));
 341
 342   gdk_window_remove_filter (root_window, egg_tray_icon_manager_filter, icon);
 343
 344   if (GTK_WIDGET_CLASS (parent_class)->unrealize)
 345     (* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
 346 #endif
 347 }
 348
 349 #ifdef GDK_WINDOWING_X11
 350
 351 static void
 352 egg_tray_icon_send_manager_message (EggTrayIcon *icon,
 353                                     long         message,
 354                                     Window       window,
 355                                     long         data1,
 356                                     long         data2,
 357                                     long         data3)
 358 {
 359   XClientMessageEvent ev;
 360   Display *display;
 361
 362   ev.type = ClientMessage;
 363   ev.window = window;
 364   ev.message_type = icon->system_tray_opcode_atom;
 365   ev.format = 32;
 366   ev.data.l[0] = gdk_x11_get_server_time (GTK_WIDGET (icon)->window);
 367   ev.data.l[1] = message;
 368   ev.data.l[2] = data1;
 369   ev.data.l[3] = data2;
 370   ev.data.l[4] = data3;
 371
 372   display = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
 373
 374   gdk_error_trap_push ();
 375   XSendEvent (display,
 376               icon->manager_window, False, NoEventMask, (XEvent *)&ev);
 377   XSync (display, False);
 378   gdk_error_trap_pop ();
 379 }
 380
 381 static void
 382 egg_tray_icon_send_dock_request (EggTrayIcon *icon)
 383 {
 384   egg_tray_icon_send_manager_message (icon,
 385                                       SYSTEM_TRAY_REQUEST_DOCK,
 386                                       icon->manager_window,
 387                                       gtk_plug_get_id (GTK_PLUG (icon)),
 388                                       0, 0);
 389 }
 390
 391 static void
 392 egg_tray_icon_update_manager_window (EggTrayIcon *icon,
 393                                      gboolean     dock_if_realized)
 394 {
 395   Display *xdisplay;
 396
 397   if (icon->manager_window != None)
 398     return;
 399
 400   xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
 401
 402   XGrabServer (xdisplay);
 403
 404   icon->manager_window = XGetSelectionOwner (xdisplay,
 405                                              icon->selection_atom);
 406
 407   if (icon->manager_window != None)
 408     XSelectInput (xdisplay,
 409                   icon->manager_window, StructureNotifyMask|PropertyChangeMask);
 410
 411   XUngrabServer (xdisplay);
 412   XFlush (xdisplay);
 413
 414   if (icon->manager_window != None)
 415     {
 416       GdkWindow *gdkwin;
 417
 418       gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (GTK_WIDGET (icon)),
 419                                               icon->manager_window);
 420
 421       gdk_window_add_filter (gdkwin, egg_tray_icon_manager_filter, icon);
 422
 423       if (dock_if_realized && GTK_WIDGET_REALIZED (icon))
 424         egg_tray_icon_send_dock_request (icon);
 425
 426       egg_tray_icon_get_orientation_property (icon);
 427     }
 428 }
 429
 430 static void
 431 egg_tray_icon_manager_window_destroyed (EggTrayIcon *icon)
 432 {
 433   GdkWindow *gdkwin;
 434
 435   g_return_if_fail (icon->manager_window != None);
 436
 437   gdkwin = gdk_window_lookup_for_display (gtk_widget_get_display (GTK_WIDGET (icon)),
 438                                           icon->manager_window);
 439
 440   gdk_window_remove_filter (gdkwin, egg_tray_icon_manager_filter, icon);
 441
 442   icon->manager_window = None;
 443
 444   egg_tray_icon_update_manager_window (icon, TRUE);
 445 }
 446
 447 #endif
 448
 449 static gboolean
 450 transparent_expose_event (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
 451 {
 452   gdk_window_clear_area (widget->window, event->area.x, event->area.y,
 453                          event->area.width, event->area.height);
 454   return FALSE;
 455 }
 456
 457 static void
 458 make_transparent_again (GtkWidget *widget, GtkStyle *previous_style,
 459                         gpointer user_data)
 460 {
 461   gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
 462 }
 463
 464 static void
 465 make_transparent (GtkWidget *widget, gpointer user_data)
 466 {
 467   if (GTK_WIDGET_NO_WINDOW (widget) || GTK_WIDGET_APP_PAINTABLE (widget))
 468     return;
 469
 470   gtk_widget_set_app_paintable (widget, TRUE);
 471   gtk_widget_set_double_buffered (widget, FALSE);
 472   gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
 473   g_signal_connect (widget, "expose_event",
 474                     G_CALLBACK (transparent_expose_event), NULL);
 475   g_signal_connect_after (widget, "style_set",
 476                           G_CALLBACK (make_transparent_again), NULL);
 477 }
 478
 479 static void
 480 egg_tray_icon_realize (GtkWidget *widget)
 481 {
 482 #ifdef GDK_WINDOWING_X11
 483   EggTrayIcon *icon = EGG_TRAY_ICON (widget);
 484   GdkScreen *screen;
 485   GdkDisplay *display;
 486   Display *xdisplay;
 487   char buffer[256];
 488   GdkWindow *root_window;
 489
 490   if (GTK_WIDGET_CLASS (parent_class)->realize)
 491     GTK_WIDGET_CLASS (parent_class)->realize (widget);
 492
 493   make_transparent (widget, NULL);
 494
 495   screen = gtk_widget_get_screen (widget);
 496   display = gdk_screen_get_display (screen);
 497   xdisplay = gdk_x11_display_get_xdisplay (display);
 498
 499   /* Now see if there's a manager window around */
 500   g_snprintf (buffer, sizeof (buffer),
 501               "_NET_SYSTEM_TRAY_S%d",
 502               gdk_screen_get_number (screen));
 503
 504   icon->selection_atom = XInternAtom (xdisplay, buffer, False);
 505
 506   icon->manager_atom = XInternAtom (xdisplay, "MANAGER", False);
 507
 508   icon->system_tray_opcode_atom = XInternAtom (xdisplay,
 509                                                    "_NET_SYSTEM_TRAY_OPCODE",
 510                                                    False);
 511
 512   icon->orientation_atom = XInternAtom (xdisplay,
 513                                         "_NET_SYSTEM_TRAY_ORIENTATION",
 514                                         False);
 515
 516   egg_tray_icon_update_manager_window (icon, FALSE);
 517   egg_tray_icon_send_dock_request (icon);
 518
 519   root_window = gdk_screen_get_root_window (screen);
 520
 521   /* Add a root window filter so that we get changes on MANAGER */
 522   gdk_window_add_filter (root_window,
 523                          egg_tray_icon_manager_filter, icon);
 524 #endif
 525 }
 526
 527 static void
 528 egg_tray_icon_add (GtkContainer *container, GtkWidget *widget)
 529 {
 530   g_signal_connect (widget, "realize",
 531                     G_CALLBACK (make_transparent), NULL);
 532   GTK_CONTAINER_CLASS (parent_class)->add (container, widget);
 533 }
 534
 535 EggTrayIcon *
 536 egg_tray_icon_new_for_screen (GdkScreen *screen, const char *name)
 537 {
 538   g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
 539
 540   return g_object_new (EGG_TYPE_TRAY_ICON, "screen", screen, "title", name, NULL);
 541 }
 542
 543 EggTrayIcon*
 544 egg_tray_icon_new (const gchar *name)
 545 {
 546   return g_object_new (EGG_TYPE_TRAY_ICON, "title", name, NULL);
 547 }
 548
 549 guint
 550 egg_tray_icon_send_message (EggTrayIcon *icon,
 551                             gint         timeout,
 552                             const gchar *message,
 553                             gint         len)
 554 {
 555   guint stamp;
 556
 557   g_return_val_if_fail (EGG_IS_TRAY_ICON (icon), 0);
 558   g_return_val_if_fail (timeout >= 0, 0);
 559   g_return_val_if_fail (message != NULL, 0);
 560
 561 #ifdef GDK_WINDOWING_X11
 562   if (icon->manager_window == None)
 563     return 0;
 564 #endif
 565
 566   if (len < 0)
 567     len = strlen (message);
 568
 569   stamp = icon->stamp++;
 570
 571 #ifdef GDK_WINDOWING_X11
 572   /* Get ready to send the message */
 573   egg_tray_icon_send_manager_message (icon, SYSTEM_TRAY_BEGIN_MESSAGE,
 574                                       icon->manager_window,
 575                                       timeout, len, stamp);
 576
 577   /* Now to send the actual message */
 578   gdk_error_trap_push ();
 579   while (len > 0)
 580     {
 581       XClientMessageEvent ev;
 582       Display *xdisplay;
 583
 584       xdisplay = GDK_DISPLAY_XDISPLAY (gtk_widget_get_display (GTK_WIDGET (icon)));
 585
 586       ev.type = ClientMessage;
 587       ev.window = icon->manager_window;
 588       ev.format = 8;
 589       ev.message_type = XInternAtom (xdisplay,
 590                                      "_NET_SYSTEM_TRAY_MESSAGE_DATA", False);
 591       if (len > 20)
 592         {
 593           memcpy (&ev.data, message, 20);
 594           len -= 20;
 595           message += 20;
 596         }
 597       else
 598         {
 599           memcpy (&ev.data, message, len);
 600           len = 0;
 601         }
 602
 603       XSendEvent (xdisplay,
 604                   icon->manager_window, False, StructureNotifyMask, (XEvent *)&ev);
 605       XSync (xdisplay, False);
 606     }
 607   gdk_error_trap_pop ();
 608 #endif
 609
 610   return stamp;
 611 }
 612
 613 void
 614 egg_tray_icon_cancel_message (EggTrayIcon *icon,
 615                               guint        id)
 616 {
 617   g_return_if_fail (EGG_IS_TRAY_ICON (icon));
 618   g_return_if_fail (id > 0);
 619 #ifdef GDK_WINDOWING_X11
 620   egg_tray_icon_send_manager_message (icon, SYSTEM_TRAY_CANCEL_MESSAGE,
 621                                       (Window)gtk_plug_get_id (GTK_PLUG (icon)),
 622                                       id, 0, 0);
 623 #endif
 624 }
 625
 626 GtkOrientation
 627 egg_tray_icon_get_orientation (EggTrayIcon *icon)
 628 {
 629   g_return_val_if_fail (EGG_IS_TRAY_ICON (icon), GTK_ORIENTATION_HORIZONTAL);
 630
 631   return icon->orientation;
 632 }
 633
 634
 635
 636
 637
 638 #endif /* GTK_CHECK_VERSION(2, 1, 0) */
 639 #endif /* wxUSE_TASKBARICON */