1 /*
2  * This file is part of gtkD.
3  *
4  * gtkD is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU Lesser General Public License
6  * as published by the Free Software Foundation; either version 3
7  * of the License, or (at your option) any later version, with
8  * some exceptions, please read the COPYING file.
9  *
10  * gtkD 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
13  * GNU Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public License
16  * along with gtkD; if not, write to the Free Software
17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
18  */
19 
20 // generated automatically - do not change
21 // find conversion definition on APILookup.txt
22 // implement new conversion functionalities on the wrap.utils pakage
23 
24 
25 module gio.Application;
26 
27 private import gio.ActionGroupIF;
28 private import gio.ActionGroupT;
29 private import gio.ActionMapIF;
30 private import gio.ActionMapT;
31 private import gio.ApplicationCommandLine;
32 private import gio.Cancellable;
33 private import gio.DBusConnection;
34 private import gio.FileIF;
35 private import gio.Notification;
36 private import gio.c.functions;
37 public  import gio.c.types;
38 private import glib.ConstructionException;
39 private import glib.ErrorG;
40 private import glib.GException;
41 private import glib.OptionGroup;
42 private import glib.Str;
43 private import glib.VariantDict;
44 private import gobject.ObjectG;
45 private import gobject.Signals;
46 public  import gtkc.giotypes;
47 private import std.algorithm;
48 
49 
50 /**
51  * A #GApplication is the foundation of an application.  It wraps some
52  * low-level platform-specific services and is intended to act as the
53  * foundation for higher-level application classes such as
54  * #GtkApplication or #MxApplication.  In general, you should not use
55  * this class outside of a higher level framework.
56  * 
57  * GApplication provides convenient life cycle management by maintaining
58  * a "use count" for the primary application instance. The use count can
59  * be changed using g_application_hold() and g_application_release(). If
60  * it drops to zero, the application exits. Higher-level classes such as
61  * #GtkApplication employ the use count to ensure that the application
62  * stays alive as long as it has any opened windows.
63  * 
64  * Another feature that GApplication (optionally) provides is process
65  * uniqueness. Applications can make use of this functionality by
66  * providing a unique application ID. If given, only one application
67  * with this ID can be running at a time per session. The session
68  * concept is platform-dependent, but corresponds roughly to a graphical
69  * desktop login. When your application is launched again, its
70  * arguments are passed through platform communication to the already
71  * running program. The already running instance of the program is
72  * called the "primary instance"; for non-unique applications this is
73  * the always the current instance. On Linux, the D-Bus session bus
74  * is used for communication.
75  * 
76  * The use of #GApplication differs from some other commonly-used
77  * uniqueness libraries (such as libunique) in important ways. The
78  * application is not expected to manually register itself and check
79  * if it is the primary instance. Instead, the main() function of a
80  * #GApplication should do very little more than instantiating the
81  * application instance, possibly connecting signal handlers, then
82  * calling g_application_run(). All checks for uniqueness are done
83  * internally. If the application is the primary instance then the
84  * startup signal is emitted and the mainloop runs. If the application
85  * is not the primary instance then a signal is sent to the primary
86  * instance and g_application_run() promptly returns. See the code
87  * examples below.
88  * 
89  * If used, the expected form of an application identifier is the same as
90  * that of of a
91  * [D-Bus well-known bus name](https://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-bus).
92  * Examples include: `com.example.MyApp`, `org.example.internal_apps.Calculator`,
93  * `org._7_zip.Archiver`.
94  * For details on valid application identifiers, see g_application_id_is_valid().
95  * 
96  * On Linux, the application identifier is claimed as a well-known bus name
97  * on the user's session bus.  This means that the uniqueness of your
98  * application is scoped to the current session.  It also means that your
99  * application may provide additional services (through registration of other
100  * object paths) at that bus name.  The registration of these object paths
101  * should be done with the shared GDBus session bus.  Note that due to the
102  * internal architecture of GDBus, method calls can be dispatched at any time
103  * (even if a main loop is not running).  For this reason, you must ensure that
104  * any object paths that you wish to register are registered before #GApplication
105  * attempts to acquire the bus name of your application (which happens in
106  * g_application_register()).  Unfortunately, this means that you cannot use
107  * g_application_get_is_remote() to decide if you want to register object paths.
108  * 
109  * GApplication also implements the #GActionGroup and #GActionMap
110  * interfaces and lets you easily export actions by adding them with
111  * g_action_map_add_action(). When invoking an action by calling
112  * g_action_group_activate_action() on the application, it is always
113  * invoked in the primary instance. The actions are also exported on
114  * the session bus, and GIO provides the #GDBusActionGroup wrapper to
115  * conveniently access them remotely. GIO provides a #GDBusMenuModel wrapper
116  * for remote access to exported #GMenuModels.
117  * 
118  * There is a number of different entry points into a GApplication:
119  * 
120  * - via 'Activate' (i.e. just starting the application)
121  * 
122  * - via 'Open' (i.e. opening some files)
123  * 
124  * - by handling a command-line
125  * 
126  * - via activating an action
127  * 
128  * The #GApplication::startup signal lets you handle the application
129  * initialization for all of these in a single place.
130  * 
131  * Regardless of which of these entry points is used to start the
132  * application, GApplication passes some "platform data from the
133  * launching instance to the primary instance, in the form of a
134  * #GVariant dictionary mapping strings to variants. To use platform
135  * data, override the @before_emit or @after_emit virtual functions
136  * in your #GApplication subclass. When dealing with
137  * #GApplicationCommandLine objects, the platform data is
138  * directly available via g_application_command_line_get_cwd(),
139  * g_application_command_line_get_environ() and
140  * g_application_command_line_get_platform_data().
141  * 
142  * As the name indicates, the platform data may vary depending on the
143  * operating system, but it always includes the current directory (key
144  * "cwd"), and optionally the environment (ie the set of environment
145  * variables and their values) of the calling process (key "environ").
146  * The environment is only added to the platform data if the
147  * %G_APPLICATION_SEND_ENVIRONMENT flag is set. #GApplication subclasses
148  * can add their own platform data by overriding the @add_platform_data
149  * virtual function. For instance, #GtkApplication adds startup notification
150  * data in this way.
151  * 
152  * To parse commandline arguments you may handle the
153  * #GApplication::command-line signal or override the local_command_line()
154  * vfunc, to parse them in either the primary instance or the local instance,
155  * respectively.
156  * 
157  * For an example of opening files with a GApplication, see
158  * [gapplication-example-open.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-open.c).
159  * 
160  * For an example of using actions with GApplication, see
161  * [gapplication-example-actions.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-actions.c).
162  * 
163  * For an example of using extra D-Bus hooks with GApplication, see
164  * [gapplication-example-dbushooks.c](https://git.gnome.org/browse/glib/tree/gio/tests/gapplication-example-dbushooks.c).
165  *
166  * Since: 2.28
167  */
168 public class Application : ObjectG, ActionGroupIF, ActionMapIF
169 {
170 	/** the main Gtk struct */
171 	protected GApplication* gApplication;
172 
173 	/** Get the main Gtk struct */
174 	public GApplication* getApplicationStruct(bool transferOwnership = false)
175 	{
176 		if (transferOwnership)
177 			ownedRef = false;
178 		return gApplication;
179 	}
180 
181 	/** the main Gtk struct as a void* */
182 	protected override void* getStruct()
183 	{
184 		return cast(void*)gApplication;
185 	}
186 
187 	/**
188 	 * Sets our main struct and passes it to the parent class.
189 	 */
190 	public this (GApplication* gApplication, bool ownedRef = false)
191 	{
192 		this.gApplication = gApplication;
193 		super(cast(GObject*)gApplication, ownedRef);
194 	}
195 
196 	// add the ActionGroup capabilities
197 	mixin ActionGroupT!(GApplication);
198 
199 	// add the ActionMap capabilities
200 	mixin ActionMapT!(GApplication);
201 
202 	/**
203 	 * The ::command-line signal is emitted on the primary instance when
204 	 * a commandline is not handled locally. See g_application_run() and
205 	 * the #GApplicationCommandLine documentation for more information.
206 	 *
207 	 * Params:
208 	 *     commandLine = a #GApplicationCommandLine representing the
209 	 *         passed commandline
210 	 *
211 	 * Return: An integer that is set as the exit status for the calling
212 	 *     process. See g_application_command_line_set_exit_status().
213 	 */
214 	gulong addOnCommandLine(int delegate(Scoped!ApplicationCommandLine, Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
215 	{
216 		return Signals.connect(this, "command-line", dlg, connectFlags ^ ConnectFlags.SWAPPED);
217 	}
218 
219 	/**
220 	 * The ::open signal is emitted on the primary instance when there are
221 	 * files to open. See g_application_open() for more information.
222 	 *
223 	 * Params:
224 	 *     files = an array of #GFiles
225 	 *     nFiles = the length of @files
226 	 *     hint = a hint provided by the calling instance
227 	 */
228 	gulong addOnOpen(void delegate(FileIF[], string, Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
229 	{
230 		return Signals.connect(this, "open", delegate void (GFile* gfiles, int nFiles, string hint, Application app){
231 			FileIF[] files = new FileIF[nFiles];
232 			for(int i = 0; i < nFiles; i++)
233 			{
234 				files[i] = ObjectG.getDObject!FileIF((cast(GFile**)gfiles)[i]);
235 			}
236 			dlg(files, hint, app);
237 			}, connectFlags ^ ConnectFlags.SWAPPED);
238 	}
239 
240 	/**
241 	 */
242 
243 	/** */
244 	public static GType getType()
245 	{
246 		return g_application_get_type();
247 	}
248 
249 	/**
250 	 * Creates a new #GApplication instance.
251 	 *
252 	 * If non-%NULL, the application id must be valid.  See
253 	 * g_application_id_is_valid().
254 	 *
255 	 * If no application ID is given then some features of #GApplication
256 	 * (most notably application uniqueness) will be disabled.
257 	 *
258 	 * Params:
259 	 *     applicationId = the application id
260 	 *     flags = the application flags
261 	 *
262 	 * Returns: a new #GApplication instance
263 	 *
264 	 * Throws: ConstructionException GTK+ fails to create the object.
265 	 */
266 	public this(string applicationId, GApplicationFlags flags)
267 	{
268 		auto p = g_application_new(Str.toStringz(applicationId), flags);
269 
270 		if(p is null)
271 		{
272 			throw new ConstructionException("null returned by new");
273 		}
274 
275 		this(cast(GApplication*) p, true);
276 	}
277 
278 	/**
279 	 * Returns the default #GApplication instance for this process.
280 	 *
281 	 * Normally there is only one #GApplication per process and it becomes
282 	 * the default when it is created.  You can exercise more control over
283 	 * this by using g_application_set_default().
284 	 *
285 	 * If there is no default application then %NULL is returned.
286 	 *
287 	 * Returns: the default application for this process, or %NULL
288 	 *
289 	 * Since: 2.32
290 	 */
291 	public static Application getDefault()
292 	{
293 		auto p = g_application_get_default();
294 
295 		if(p is null)
296 		{
297 			return null;
298 		}
299 
300 		return ObjectG.getDObject!(Application)(cast(GApplication*) p);
301 	}
302 
303 	/**
304 	 * Checks if @application_id is a valid application identifier.
305 	 *
306 	 * A valid ID is required for calls to g_application_new() and
307 	 * g_application_set_application_id().
308 	 *
309 	 * Application identifiers follow the same format as
310 	 * [D-Bus well-known bus names](https://dbus.freedesktop.org/doc/dbus-specification.html#message-protocol-names-bus).
311 	 * For convenience, the restrictions on application identifiers are
312 	 * reproduced here:
313 	 *
314 	 * - Application identifiers are composed of 1 or more elements separated by a
315 	 * period (`.`) character. All elements must contain at least one character.
316 	 *
317 	 * - Each element must only contain the ASCII characters `[A-Z][a-z][0-9]_-`,
318 	 * with `-` discouraged in new application identifiers. Each element must not
319 	 * begin with a digit.
320 	 *
321 	 * - Application identifiers must contain at least one `.` (period) character
322 	 * (and thus at least two elements).
323 	 *
324 	 * - Application identifiers must not begin with a `.` (period) character.
325 	 *
326 	 * - Application identifiers must not exceed 255 characters.
327 	 *
328 	 * Note that the hyphen (`-`) character is allowed in application identifiers,
329 	 * but is problematic or not allowed in various specifications and APIs that
330 	 * refer to D-Bus, such as
331 	 * [Flatpak application IDs](http://docs.flatpak.org/en/latest/introduction.html#identifiers),
332 	 * the
333 	 * [`DBusActivatable` interface in the Desktop Entry Specification](https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html#dbus),
334 	 * and the convention that an application's "main" interface and object path
335 	 * resemble its application identifier and bus name. To avoid situations that
336 	 * require special-case handling, it is recommended that new application
337 	 * identifiers consistently replace hyphens with underscores.
338 	 *
339 	 * Like D-Bus interface names, application identifiers should start with the
340 	 * reversed DNS domain name of the author of the interface (in lower-case), and
341 	 * it is conventional for the rest of the application identifier to consist of
342 	 * words run together, with initial capital letters.
343 	 *
344 	 * As with D-Bus interface names, if the author's DNS domain name contains
345 	 * hyphen/minus characters they should be replaced by underscores, and if it
346 	 * contains leading digits they should be escaped by prepending an underscore.
347 	 * For example, if the owner of 7-zip.org used an application identifier for an
348 	 * archiving application, it might be named `org._7_zip.Archiver`.
349 	 *
350 	 * Params:
351 	 *     applicationId = a potential application identifier
352 	 *
353 	 * Returns: %TRUE if @application_id is valid
354 	 */
355 	public static bool idIsValid(string applicationId)
356 	{
357 		return g_application_id_is_valid(Str.toStringz(applicationId)) != 0;
358 	}
359 
360 	/**
361 	 * Activates the application.
362 	 *
363 	 * In essence, this results in the #GApplication::activate signal being
364 	 * emitted in the primary instance.
365 	 *
366 	 * The application must be registered before calling this function.
367 	 *
368 	 * Since: 2.28
369 	 */
370 	public void activate()
371 	{
372 		g_application_activate(gApplication);
373 	}
374 
375 	/**
376 	 * Add an option to be handled by @application.
377 	 *
378 	 * Calling this function is the equivalent of calling
379 	 * g_application_add_main_option_entries() with a single #GOptionEntry
380 	 * that has its arg_data member set to %NULL.
381 	 *
382 	 * The parsed arguments will be packed into a #GVariantDict which
383 	 * is passed to #GApplication::handle-local-options. If
384 	 * %G_APPLICATION_HANDLES_COMMAND_LINE is set, then it will also
385 	 * be sent to the primary instance. See
386 	 * g_application_add_main_option_entries() for more details.
387 	 *
388 	 * See #GOptionEntry for more documentation of the arguments.
389 	 *
390 	 * Params:
391 	 *     longName = the long name of an option used to specify it in a commandline
392 	 *     shortName = the short name of an option
393 	 *     flags = flags from #GOptionFlags
394 	 *     arg = the type of the option, as a #GOptionArg
395 	 *     description = the description for the option in `--help` output
396 	 *     argDescription = the placeholder to use for the extra argument
397 	 *         parsed by the option in `--help` output
398 	 *
399 	 * Since: 2.42
400 	 */
401 	public void addMainOption(string longName, char shortName, GOptionFlags flags, GOptionArg arg, string description, string argDescription)
402 	{
403 		g_application_add_main_option(gApplication, Str.toStringz(longName), shortName, flags, arg, Str.toStringz(description), Str.toStringz(argDescription));
404 	}
405 
406 	/**
407 	 * Adds main option entries to be handled by @application.
408 	 *
409 	 * This function is comparable to g_option_context_add_main_entries().
410 	 *
411 	 * After the commandline arguments are parsed, the
412 	 * #GApplication::handle-local-options signal will be emitted.  At this
413 	 * point, the application can inspect the values pointed to by @arg_data
414 	 * in the given #GOptionEntrys.
415 	 *
416 	 * Unlike #GOptionContext, #GApplication supports giving a %NULL
417 	 * @arg_data for a non-callback #GOptionEntry.  This results in the
418 	 * argument in question being packed into a #GVariantDict which is also
419 	 * passed to #GApplication::handle-local-options, where it can be
420 	 * inspected and modified.  If %G_APPLICATION_HANDLES_COMMAND_LINE is
421 	 * set, then the resulting dictionary is sent to the primary instance,
422 	 * where g_application_command_line_get_options_dict() will return it.
423 	 * This "packing" is done according to the type of the argument --
424 	 * booleans for normal flags, strings for strings, bytestrings for
425 	 * filenames, etc.  The packing only occurs if the flag is given (ie: we
426 	 * do not pack a "false" #GVariant in the case that a flag is missing).
427 	 *
428 	 * In general, it is recommended that all commandline arguments are
429 	 * parsed locally.  The options dictionary should then be used to
430 	 * transmit the result of the parsing to the primary instance, where
431 	 * g_variant_dict_lookup() can be used.  For local options, it is
432 	 * possible to either use @arg_data in the usual way, or to consult (and
433 	 * potentially remove) the option from the options dictionary.
434 	 *
435 	 * This function is new in GLib 2.40.  Before then, the only real choice
436 	 * was to send all of the commandline arguments (options and all) to the
437 	 * primary instance for handling.  #GApplication ignored them completely
438 	 * on the local side.  Calling this function "opts in" to the new
439 	 * behaviour, and in particular, means that unrecognised options will be
440 	 * treated as errors.  Unrecognised options have never been ignored when
441 	 * %G_APPLICATION_HANDLES_COMMAND_LINE is unset.
442 	 *
443 	 * If #GApplication::handle-local-options needs to see the list of
444 	 * filenames, then the use of %G_OPTION_REMAINING is recommended.  If
445 	 * @arg_data is %NULL then %G_OPTION_REMAINING can be used as a key into
446 	 * the options dictionary.  If you do use %G_OPTION_REMAINING then you
447 	 * need to handle these arguments for yourself because once they are
448 	 * consumed, they will no longer be visible to the default handling
449 	 * (which treats them as filenames to be opened).
450 	 *
451 	 * It is important to use the proper GVariant format when retrieving
452 	 * the options with g_variant_dict_lookup():
453 	 * - for %G_OPTION_ARG_NONE, use b
454 	 * - for %G_OPTION_ARG_STRING, use &s
455 	 * - for %G_OPTION_ARG_INT, use i
456 	 * - for %G_OPTION_ARG_INT64, use x
457 	 * - for %G_OPTION_ARG_DOUBLE, use d
458 	 * - for %G_OPTION_ARG_FILENAME, use ^ay
459 	 * - for %G_OPTION_ARG_STRING_ARRAY, use &as
460 	 * - for %G_OPTION_ARG_FILENAME_ARRAY, use ^aay
461 	 *
462 	 * Params:
463 	 *     entries = a
464 	 *         %NULL-terminated list of #GOptionEntrys
465 	 *
466 	 * Since: 2.40
467 	 */
468 	public void addMainOptionEntries(GOptionEntry[] entries)
469 	{
470 		g_application_add_main_option_entries(gApplication, entries.ptr);
471 	}
472 
473 	/**
474 	 * Adds a #GOptionGroup to the commandline handling of @application.
475 	 *
476 	 * This function is comparable to g_option_context_add_group().
477 	 *
478 	 * Unlike g_application_add_main_option_entries(), this function does
479 	 * not deal with %NULL @arg_data and never transmits options to the
480 	 * primary instance.
481 	 *
482 	 * The reason for that is because, by the time the options arrive at the
483 	 * primary instance, it is typically too late to do anything with them.
484 	 * Taking the GTK option group as an example: GTK will already have been
485 	 * initialised by the time the #GApplication::command-line handler runs.
486 	 * In the case that this is not the first-running instance of the
487 	 * application, the existing instance may already have been running for
488 	 * a very long time.
489 	 *
490 	 * This means that the options from #GOptionGroup are only really usable
491 	 * in the case that the instance of the application being run is the
492 	 * first instance.  Passing options like `--display=` or `--gdk-debug=`
493 	 * on future runs will have no effect on the existing primary instance.
494 	 *
495 	 * Calling this function will cause the options in the supplied option
496 	 * group to be parsed, but it does not cause you to be "opted in" to the
497 	 * new functionality whereby unrecognised options are rejected even if
498 	 * %G_APPLICATION_HANDLES_COMMAND_LINE was given.
499 	 *
500 	 * Params:
501 	 *     group = a #GOptionGroup
502 	 *
503 	 * Since: 2.40
504 	 */
505 	public void addOptionGroup(OptionGroup group)
506 	{
507 		g_application_add_option_group(gApplication, (group is null) ? null : group.getOptionGroupStruct(true));
508 	}
509 
510 	/**
511 	 * Marks @application as busy (see g_application_mark_busy()) while
512 	 * @property on @object is %TRUE.
513 	 *
514 	 * The binding holds a reference to @application while it is active, but
515 	 * not to @object. Instead, the binding is destroyed when @object is
516 	 * finalized.
517 	 *
518 	 * Params:
519 	 *     object = a #GObject
520 	 *     property = the name of a boolean property of @object
521 	 *
522 	 * Since: 2.44
523 	 */
524 	public void bindBusyProperty(ObjectG object, string property)
525 	{
526 		g_application_bind_busy_property(gApplication, (object is null) ? null : object.getObjectGStruct(), Str.toStringz(property));
527 	}
528 
529 	/**
530 	 * Gets the unique identifier for @application.
531 	 *
532 	 * Returns: the identifier for @application, owned by @application
533 	 *
534 	 * Since: 2.28
535 	 */
536 	public string getApplicationId()
537 	{
538 		return Str.toString(g_application_get_application_id(gApplication));
539 	}
540 
541 	/**
542 	 * Gets the #GDBusConnection being used by the application, or %NULL.
543 	 *
544 	 * If #GApplication is using its D-Bus backend then this function will
545 	 * return the #GDBusConnection being used for uniqueness and
546 	 * communication with the desktop environment and other instances of the
547 	 * application.
548 	 *
549 	 * If #GApplication is not using D-Bus then this function will return
550 	 * %NULL.  This includes the situation where the D-Bus backend would
551 	 * normally be in use but we were unable to connect to the bus.
552 	 *
553 	 * This function must not be called before the application has been
554 	 * registered.  See g_application_get_is_registered().
555 	 *
556 	 * Returns: a #GDBusConnection, or %NULL
557 	 *
558 	 * Since: 2.34
559 	 */
560 	public DBusConnection getDbusConnection()
561 	{
562 		auto p = g_application_get_dbus_connection(gApplication);
563 
564 		if(p is null)
565 		{
566 			return null;
567 		}
568 
569 		return ObjectG.getDObject!(DBusConnection)(cast(GDBusConnection*) p);
570 	}
571 
572 	/**
573 	 * Gets the D-Bus object path being used by the application, or %NULL.
574 	 *
575 	 * If #GApplication is using its D-Bus backend then this function will
576 	 * return the D-Bus object path that #GApplication is using.  If the
577 	 * application is the primary instance then there is an object published
578 	 * at this path.  If the application is not the primary instance then
579 	 * the result of this function is undefined.
580 	 *
581 	 * If #GApplication is not using D-Bus then this function will return
582 	 * %NULL.  This includes the situation where the D-Bus backend would
583 	 * normally be in use but we were unable to connect to the bus.
584 	 *
585 	 * This function must not be called before the application has been
586 	 * registered.  See g_application_get_is_registered().
587 	 *
588 	 * Returns: the object path, or %NULL
589 	 *
590 	 * Since: 2.34
591 	 */
592 	public string getDbusObjectPath()
593 	{
594 		return Str.toString(g_application_get_dbus_object_path(gApplication));
595 	}
596 
597 	/**
598 	 * Gets the flags for @application.
599 	 *
600 	 * See #GApplicationFlags.
601 	 *
602 	 * Returns: the flags for @application
603 	 *
604 	 * Since: 2.28
605 	 */
606 	public GApplicationFlags getFlags()
607 	{
608 		return g_application_get_flags(gApplication);
609 	}
610 
611 	/**
612 	 * Gets the current inactivity timeout for the application.
613 	 *
614 	 * This is the amount of time (in milliseconds) after the last call to
615 	 * g_application_release() before the application stops running.
616 	 *
617 	 * Returns: the timeout, in milliseconds
618 	 *
619 	 * Since: 2.28
620 	 */
621 	public uint getInactivityTimeout()
622 	{
623 		return g_application_get_inactivity_timeout(gApplication);
624 	}
625 
626 	/**
627 	 * Gets the application's current busy state, as set through
628 	 * g_application_mark_busy() or g_application_bind_busy_property().
629 	 *
630 	 * Returns: %TRUE if @application is currenty marked as busy
631 	 *
632 	 * Since: 2.44
633 	 */
634 	public bool getIsBusy()
635 	{
636 		return g_application_get_is_busy(gApplication) != 0;
637 	}
638 
639 	/**
640 	 * Checks if @application is registered.
641 	 *
642 	 * An application is registered if g_application_register() has been
643 	 * successfully called.
644 	 *
645 	 * Returns: %TRUE if @application is registered
646 	 *
647 	 * Since: 2.28
648 	 */
649 	public bool getIsRegistered()
650 	{
651 		return g_application_get_is_registered(gApplication) != 0;
652 	}
653 
654 	/**
655 	 * Checks if @application is remote.
656 	 *
657 	 * If @application is remote then it means that another instance of
658 	 * application already exists (the 'primary' instance).  Calls to
659 	 * perform actions on @application will result in the actions being
660 	 * performed by the primary instance.
661 	 *
662 	 * The value of this property cannot be accessed before
663 	 * g_application_register() has been called.  See
664 	 * g_application_get_is_registered().
665 	 *
666 	 * Returns: %TRUE if @application is remote
667 	 *
668 	 * Since: 2.28
669 	 */
670 	public bool getIsRemote()
671 	{
672 		return g_application_get_is_remote(gApplication) != 0;
673 	}
674 
675 	/**
676 	 * Gets the resource base path of @application.
677 	 *
678 	 * See g_application_set_resource_base_path() for more information.
679 	 *
680 	 * Returns: the base resource path, if one is set
681 	 *
682 	 * Since: 2.42
683 	 */
684 	public string getResourceBasePath()
685 	{
686 		return Str.toString(g_application_get_resource_base_path(gApplication));
687 	}
688 
689 	/**
690 	 * Increases the use count of @application.
691 	 *
692 	 * Use this function to indicate that the application has a reason to
693 	 * continue to run.  For example, g_application_hold() is called by GTK+
694 	 * when a toplevel window is on the screen.
695 	 *
696 	 * To cancel the hold, call g_application_release().
697 	 */
698 	public void hold()
699 	{
700 		g_application_hold(gApplication);
701 	}
702 
703 	/**
704 	 * Increases the busy count of @application.
705 	 *
706 	 * Use this function to indicate that the application is busy, for instance
707 	 * while a long running operation is pending.
708 	 *
709 	 * The busy state will be exposed to other processes, so a session shell will
710 	 * use that information to indicate the state to the user (e.g. with a
711 	 * spinner).
712 	 *
713 	 * To cancel the busy indication, use g_application_unmark_busy().
714 	 *
715 	 * Since: 2.38
716 	 */
717 	public void markBusy()
718 	{
719 		g_application_mark_busy(gApplication);
720 	}
721 
722 	/**
723 	 * Opens the given files.
724 	 *
725 	 * In essence, this results in the #GApplication::open signal being emitted
726 	 * in the primary instance.
727 	 *
728 	 * @n_files must be greater than zero.
729 	 *
730 	 * @hint is simply passed through to the ::open signal.  It is
731 	 * intended to be used by applications that have multiple modes for
732 	 * opening files (eg: "view" vs "edit", etc).  Unless you have a need
733 	 * for this functionality, you should use "".
734 	 *
735 	 * The application must be registered before calling this function
736 	 * and it must have the %G_APPLICATION_HANDLES_OPEN flag set.
737 	 *
738 	 * Params:
739 	 *     files = an array of #GFiles to open
740 	 *     hint = a hint (or ""), but never %NULL
741 	 *
742 	 * Since: 2.28
743 	 */
744 	public void open(FileIF[] files, string hint)
745 	{
746 		GFile*[] filesArray = new GFile*[files.length];
747 		for ( int i = 0; i < files.length; i++ )
748 		{
749 			filesArray[i] = files[i].getFileStruct();
750 		}
751 
752 		g_application_open(gApplication, filesArray.ptr, cast(int)files.length, Str.toStringz(hint));
753 	}
754 
755 	/**
756 	 * Immediately quits the application.
757 	 *
758 	 * Upon return to the mainloop, g_application_run() will return,
759 	 * calling only the 'shutdown' function before doing so.
760 	 *
761 	 * The hold count is ignored.
762 	 * Take care if your code has called g_application_hold() on the application and
763 	 * is therefore still expecting it to exist.
764 	 * (Note that you may have called g_application_hold() indirectly, for example
765 	 * through gtk_application_add_window().)
766 	 *
767 	 * The result of calling g_application_run() again after it returns is
768 	 * unspecified.
769 	 *
770 	 * Since: 2.32
771 	 */
772 	public void quit()
773 	{
774 		g_application_quit(gApplication);
775 	}
776 
777 	/**
778 	 * Attempts registration of the application.
779 	 *
780 	 * This is the point at which the application discovers if it is the
781 	 * primary instance or merely acting as a remote for an already-existing
782 	 * primary instance.  This is implemented by attempting to acquire the
783 	 * application identifier as a unique bus name on the session bus using
784 	 * GDBus.
785 	 *
786 	 * If there is no application ID or if %G_APPLICATION_NON_UNIQUE was
787 	 * given, then this process will always become the primary instance.
788 	 *
789 	 * Due to the internal architecture of GDBus, method calls can be
790 	 * dispatched at any time (even if a main loop is not running).  For
791 	 * this reason, you must ensure that any object paths that you wish to
792 	 * register are registered before calling this function.
793 	 *
794 	 * If the application has already been registered then %TRUE is
795 	 * returned with no work performed.
796 	 *
797 	 * The #GApplication::startup signal is emitted if registration succeeds
798 	 * and @application is the primary instance (including the non-unique
799 	 * case).
800 	 *
801 	 * In the event of an error (such as @cancellable being cancelled, or a
802 	 * failure to connect to the session bus), %FALSE is returned and @error
803 	 * is set appropriately.
804 	 *
805 	 * Note: the return value of this function is not an indicator that this
806 	 * instance is or is not the primary instance of the application.  See
807 	 * g_application_get_is_remote() for that.
808 	 *
809 	 * Params:
810 	 *     cancellable = a #GCancellable, or %NULL
811 	 *
812 	 * Returns: %TRUE if registration succeeded
813 	 *
814 	 * Since: 2.28
815 	 *
816 	 * Throws: GException on failure.
817 	 */
818 	public bool register(Cancellable cancellable)
819 	{
820 		GError* err = null;
821 
822 		auto p = g_application_register(gApplication, (cancellable is null) ? null : cancellable.getCancellableStruct(), &err) != 0;
823 
824 		if (err !is null)
825 		{
826 			throw new GException( new ErrorG(err) );
827 		}
828 
829 		return p;
830 	}
831 
832 	/**
833 	 * Decrease the use count of @application.
834 	 *
835 	 * When the use count reaches zero, the application will stop running.
836 	 *
837 	 * Never call this function except to cancel the effect of a previous
838 	 * call to g_application_hold().
839 	 */
840 	public void release()
841 	{
842 		g_application_release(gApplication);
843 	}
844 
845 	/**
846 	 * Runs the application.
847 	 *
848 	 * This function is intended to be run from main() and its return value
849 	 * is intended to be returned by main(). Although you are expected to pass
850 	 * the @argc, @argv parameters from main() to this function, it is possible
851 	 * to pass %NULL if @argv is not available or commandline handling is not
852 	 * required.  Note that on Windows, @argc and @argv are ignored, and
853 	 * g_win32_get_command_line() is called internally (for proper support
854 	 * of Unicode commandline arguments).
855 	 *
856 	 * #GApplication will attempt to parse the commandline arguments.  You
857 	 * can add commandline flags to the list of recognised options by way of
858 	 * g_application_add_main_option_entries().  After this, the
859 	 * #GApplication::handle-local-options signal is emitted, from which the
860 	 * application can inspect the values of its #GOptionEntrys.
861 	 *
862 	 * #GApplication::handle-local-options is a good place to handle options
863 	 * such as `--version`, where an immediate reply from the local process is
864 	 * desired (instead of communicating with an already-running instance).
865 	 * A #GApplication::handle-local-options handler can stop further processing
866 	 * by returning a non-negative value, which then becomes the exit status of
867 	 * the process.
868 	 *
869 	 * What happens next depends on the flags: if
870 	 * %G_APPLICATION_HANDLES_COMMAND_LINE was specified then the remaining
871 	 * commandline arguments are sent to the primary instance, where a
872 	 * #GApplication::command-line signal is emitted.  Otherwise, the
873 	 * remaining commandline arguments are assumed to be a list of files.
874 	 * If there are no files listed, the application is activated via the
875 	 * #GApplication::activate signal.  If there are one or more files, and
876 	 * %G_APPLICATION_HANDLES_OPEN was specified then the files are opened
877 	 * via the #GApplication::open signal.
878 	 *
879 	 * If you are interested in doing more complicated local handling of the
880 	 * commandline then you should implement your own #GApplication subclass
881 	 * and override local_command_line(). In this case, you most likely want
882 	 * to return %TRUE from your local_command_line() implementation to
883 	 * suppress the default handling. See
884 	 * [gapplication-example-cmdline2.c][gapplication-example-cmdline2]
885 	 * for an example.
886 	 *
887 	 * If, after the above is done, the use count of the application is zero
888 	 * then the exit status is returned immediately.  If the use count is
889 	 * non-zero then the default main context is iterated until the use count
890 	 * falls to zero, at which point 0 is returned.
891 	 *
892 	 * If the %G_APPLICATION_IS_SERVICE flag is set, then the service will
893 	 * run for as much as 10 seconds with a use count of zero while waiting
894 	 * for the message that caused the activation to arrive.  After that,
895 	 * if the use count falls to zero the application will exit immediately,
896 	 * except in the case that g_application_set_inactivity_timeout() is in
897 	 * use.
898 	 *
899 	 * This function sets the prgname (g_set_prgname()), if not already set,
900 	 * to the basename of argv[0].
901 	 *
902 	 * Much like g_main_loop_run(), this function will acquire the main context
903 	 * for the duration that the application is running.
904 	 *
905 	 * Since 2.40, applications that are not explicitly flagged as services
906 	 * or launchers (ie: neither %G_APPLICATION_IS_SERVICE or
907 	 * %G_APPLICATION_IS_LAUNCHER are given as flags) will check (from the
908 	 * default handler for local_command_line) if "--gapplication-service"
909 	 * was given in the command line.  If this flag is present then normal
910 	 * commandline processing is interrupted and the
911 	 * %G_APPLICATION_IS_SERVICE flag is set.  This provides a "compromise"
912 	 * solution whereby running an application directly from the commandline
913 	 * will invoke it in the normal way (which can be useful for debugging)
914 	 * while still allowing applications to be D-Bus activated in service
915 	 * mode.  The D-Bus service file should invoke the executable with
916 	 * "--gapplication-service" as the sole commandline argument.  This
917 	 * approach is suitable for use by most graphical applications but
918 	 * should not be used from applications like editors that need precise
919 	 * control over when processes invoked via the commandline will exit and
920 	 * what their exit status will be.
921 	 *
922 	 * Params:
923 	 *     argv = the argv from main(), or %NULL
924 	 *
925 	 * Returns: the exit status
926 	 *
927 	 * Since: 2.28
928 	 */
929 	public int run(string[] argv)
930 	{
931 		return g_application_run(gApplication, cast(int)argv.length, Str.toStringzArray(argv));
932 	}
933 
934 	/**
935 	 * Sends a notification on behalf of @application to the desktop shell.
936 	 * There is no guarantee that the notification is displayed immediately,
937 	 * or even at all.
938 	 *
939 	 * Notifications may persist after the application exits. It will be
940 	 * D-Bus-activated when the notification or one of its actions is
941 	 * activated.
942 	 *
943 	 * Modifying @notification after this call has no effect. However, the
944 	 * object can be reused for a later call to this function.
945 	 *
946 	 * @id may be any string that uniquely identifies the event for the
947 	 * application. It does not need to be in any special format. For
948 	 * example, "new-message" might be appropriate for a notification about
949 	 * new messages.
950 	 *
951 	 * If a previous notification was sent with the same @id, it will be
952 	 * replaced with @notification and shown again as if it was a new
953 	 * notification. This works even for notifications sent from a previous
954 	 * execution of the application, as long as @id is the same string.
955 	 *
956 	 * @id may be %NULL, but it is impossible to replace or withdraw
957 	 * notifications without an id.
958 	 *
959 	 * If @notification is no longer relevant, it can be withdrawn with
960 	 * g_application_withdraw_notification().
961 	 *
962 	 * Params:
963 	 *     id = id of the notification, or %NULL
964 	 *     notification = the #GNotification to send
965 	 *
966 	 * Since: 2.40
967 	 */
968 	public void sendNotification(string id, Notification notification)
969 	{
970 		g_application_send_notification(gApplication, Str.toStringz(id), (notification is null) ? null : notification.getNotificationStruct());
971 	}
972 
973 	/**
974 	 * This used to be how actions were associated with a #GApplication.
975 	 * Now there is #GActionMap for that.
976 	 *
977 	 * Deprecated: Use the #GActionMap interface instead.  Never ever
978 	 * mix use of this API with use of #GActionMap on the same @application
979 	 * or things will go very badly wrong.  This function is known to
980 	 * introduce buggy behaviour (ie: signals not emitted on changes to the
981 	 * action group), so you should really use #GActionMap instead.
982 	 *
983 	 * Params:
984 	 *     actionGroup = a #GActionGroup, or %NULL
985 	 *
986 	 * Since: 2.28
987 	 */
988 	public void setActionGroup(ActionGroupIF actionGroup)
989 	{
990 		g_application_set_action_group(gApplication, (actionGroup is null) ? null : actionGroup.getActionGroupStruct());
991 	}
992 
993 	/**
994 	 * Sets the unique identifier for @application.
995 	 *
996 	 * The application id can only be modified if @application has not yet
997 	 * been registered.
998 	 *
999 	 * If non-%NULL, the application id must be valid.  See
1000 	 * g_application_id_is_valid().
1001 	 *
1002 	 * Params:
1003 	 *     applicationId = the identifier for @application
1004 	 *
1005 	 * Since: 2.28
1006 	 */
1007 	public void setApplicationId(string applicationId)
1008 	{
1009 		g_application_set_application_id(gApplication, Str.toStringz(applicationId));
1010 	}
1011 
1012 	/**
1013 	 * Sets or unsets the default application for the process, as returned
1014 	 * by g_application_get_default().
1015 	 *
1016 	 * This function does not take its own reference on @application.  If
1017 	 * @application is destroyed then the default application will revert
1018 	 * back to %NULL.
1019 	 *
1020 	 * Since: 2.32
1021 	 */
1022 	public void setDefault()
1023 	{
1024 		g_application_set_default(gApplication);
1025 	}
1026 
1027 	/**
1028 	 * Sets the flags for @application.
1029 	 *
1030 	 * The flags can only be modified if @application has not yet been
1031 	 * registered.
1032 	 *
1033 	 * See #GApplicationFlags.
1034 	 *
1035 	 * Params:
1036 	 *     flags = the flags for @application
1037 	 *
1038 	 * Since: 2.28
1039 	 */
1040 	public void setFlags(GApplicationFlags flags)
1041 	{
1042 		g_application_set_flags(gApplication, flags);
1043 	}
1044 
1045 	/**
1046 	 * Sets the current inactivity timeout for the application.
1047 	 *
1048 	 * This is the amount of time (in milliseconds) after the last call to
1049 	 * g_application_release() before the application stops running.
1050 	 *
1051 	 * This call has no side effects of its own.  The value set here is only
1052 	 * used for next time g_application_release() drops the use count to
1053 	 * zero.  Any timeouts currently in progress are not impacted.
1054 	 *
1055 	 * Params:
1056 	 *     inactivityTimeout = the timeout, in milliseconds
1057 	 *
1058 	 * Since: 2.28
1059 	 */
1060 	public void setInactivityTimeout(uint inactivityTimeout)
1061 	{
1062 		g_application_set_inactivity_timeout(gApplication, inactivityTimeout);
1063 	}
1064 
1065 	/**
1066 	 * Adds a description to the @application option context.
1067 	 *
1068 	 * See g_option_context_set_description() for more information.
1069 	 *
1070 	 * Params:
1071 	 *     description = a string to be shown in `--help` output
1072 	 *         after the list of options, or %NULL
1073 	 *
1074 	 * Since: 2.56
1075 	 */
1076 	public void setOptionContextDescription(string description)
1077 	{
1078 		g_application_set_option_context_description(gApplication, Str.toStringz(description));
1079 	}
1080 
1081 	/**
1082 	 * Sets the parameter string to be used by the commandline handling of @application.
1083 	 *
1084 	 * This function registers the argument to be passed to g_option_context_new()
1085 	 * when the internal #GOptionContext of @application is created.
1086 	 *
1087 	 * See g_option_context_new() for more information about @parameter_string.
1088 	 *
1089 	 * Params:
1090 	 *     parameterString = a string which is displayed
1091 	 *         in the first line of `--help` output, after the usage summary `programname [OPTION...]`.
1092 	 *
1093 	 * Since: 2.56
1094 	 */
1095 	public void setOptionContextParameterString(string parameterString)
1096 	{
1097 		g_application_set_option_context_parameter_string(gApplication, Str.toStringz(parameterString));
1098 	}
1099 
1100 	/**
1101 	 * Adds a summary to the @application option context.
1102 	 *
1103 	 * See g_option_context_set_summary() for more information.
1104 	 *
1105 	 * Params:
1106 	 *     summary = a string to be shown in `--help` output
1107 	 *         before the list of options, or %NULL
1108 	 *
1109 	 * Since: 2.56
1110 	 */
1111 	public void setOptionContextSummary(string summary)
1112 	{
1113 		g_application_set_option_context_summary(gApplication, Str.toStringz(summary));
1114 	}
1115 
1116 	/**
1117 	 * Sets (or unsets) the base resource path of @application.
1118 	 *
1119 	 * The path is used to automatically load various [application
1120 	 * resources][gresource] such as menu layouts and action descriptions.
1121 	 * The various types of resources will be found at fixed names relative
1122 	 * to the given base path.
1123 	 *
1124 	 * By default, the resource base path is determined from the application
1125 	 * ID by prefixing '/' and replacing each '.' with '/'.  This is done at
1126 	 * the time that the #GApplication object is constructed.  Changes to
1127 	 * the application ID after that point will not have an impact on the
1128 	 * resource base path.
1129 	 *
1130 	 * As an example, if the application has an ID of "org.example.app" then
1131 	 * the default resource base path will be "/org/example/app".  If this
1132 	 * is a #GtkApplication (and you have not manually changed the path)
1133 	 * then Gtk will then search for the menus of the application at
1134 	 * "/org/example/app/gtk/menus.ui".
1135 	 *
1136 	 * See #GResource for more information about adding resources to your
1137 	 * application.
1138 	 *
1139 	 * You can disable automatic resource loading functionality by setting
1140 	 * the path to %NULL.
1141 	 *
1142 	 * Changing the resource base path once the application is running is
1143 	 * not recommended.  The point at which the resource path is consulted
1144 	 * for forming paths for various purposes is unspecified.  When writing
1145 	 * a sub-class of #GApplication you should either set the
1146 	 * #GApplication:resource-base-path property at construction time, or call
1147 	 * this function during the instance initialization. Alternatively, you
1148 	 * can call this function in the #GApplicationClass.startup virtual function,
1149 	 * before chaining up to the parent implementation.
1150 	 *
1151 	 * Params:
1152 	 *     resourcePath = the resource path to use
1153 	 *
1154 	 * Since: 2.42
1155 	 */
1156 	public void setResourceBasePath(string resourcePath)
1157 	{
1158 		g_application_set_resource_base_path(gApplication, Str.toStringz(resourcePath));
1159 	}
1160 
1161 	/**
1162 	 * Destroys a binding between @property and the busy state of
1163 	 * @application that was previously created with
1164 	 * g_application_bind_busy_property().
1165 	 *
1166 	 * Params:
1167 	 *     object = a #GObject
1168 	 *     property = the name of a boolean property of @object
1169 	 *
1170 	 * Since: 2.44
1171 	 */
1172 	public void unbindBusyProperty(ObjectG object, string property)
1173 	{
1174 		g_application_unbind_busy_property(gApplication, (object is null) ? null : object.getObjectGStruct(), Str.toStringz(property));
1175 	}
1176 
1177 	/**
1178 	 * Decreases the busy count of @application.
1179 	 *
1180 	 * When the busy count reaches zero, the new state will be propagated
1181 	 * to other processes.
1182 	 *
1183 	 * This function must only be called to cancel the effect of a previous
1184 	 * call to g_application_mark_busy().
1185 	 *
1186 	 * Since: 2.38
1187 	 */
1188 	public void unmarkBusy()
1189 	{
1190 		g_application_unmark_busy(gApplication);
1191 	}
1192 
1193 	/**
1194 	 * Withdraws a notification that was sent with
1195 	 * g_application_send_notification().
1196 	 *
1197 	 * This call does nothing if a notification with @id doesn't exist or
1198 	 * the notification was never sent.
1199 	 *
1200 	 * This function works even for notifications sent in previous
1201 	 * executions of this application, as long @id is the same as it was for
1202 	 * the sent notification.
1203 	 *
1204 	 * Note that notifications are dismissed when the user clicks on one
1205 	 * of the buttons in a notification or triggers its default action, so
1206 	 * there is no need to explicitly withdraw the notification in that case.
1207 	 *
1208 	 * Params:
1209 	 *     id = id of a previously sent notification
1210 	 *
1211 	 * Since: 2.40
1212 	 */
1213 	public void withdrawNotification(string id)
1214 	{
1215 		g_application_withdraw_notification(gApplication, Str.toStringz(id));
1216 	}
1217 
1218 	/**
1219 	 * The ::activate signal is emitted on the primary instance when an
1220 	 * activation occurs. See g_application_activate().
1221 	 */
1222 	gulong addOnActivate(void delegate(Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1223 	{
1224 		return Signals.connect(this, "activate", dlg, connectFlags ^ ConnectFlags.SWAPPED);
1225 	}
1226 
1227 	/**
1228 	 * The ::command-line signal is emitted on the primary instance when
1229 	 * a commandline is not handled locally. See g_application_run() and
1230 	 * the #GApplicationCommandLine documentation for more information.
1231 	 *
1232 	 * Params:
1233 	 *     commandLine = a #GApplicationCommandLine representing the
1234 	 *         passed commandline
1235 	 *
1236 	 * Returns: An integer that is set as the exit status for the calling
1237 	 *     process. See g_application_command_line_set_exit_status().
1238 	 */
1239 	gulong addOnCommandLine(int delegate(ApplicationCommandLine, Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1240 	{
1241 		return Signals.connect(this, "command-line", dlg, connectFlags ^ ConnectFlags.SWAPPED);
1242 	}
1243 
1244 	/**
1245 	 * The ::handle-local-options signal is emitted on the local instance
1246 	 * after the parsing of the commandline options has occurred.
1247 	 *
1248 	 * You can add options to be recognised during commandline option
1249 	 * parsing using g_application_add_main_option_entries() and
1250 	 * g_application_add_option_group().
1251 	 *
1252 	 * Signal handlers can inspect @options (along with values pointed to
1253 	 * from the @arg_data of an installed #GOptionEntrys) in order to
1254 	 * decide to perform certain actions, including direct local handling
1255 	 * (which may be useful for options like --version).
1256 	 *
1257 	 * In the event that the application is marked
1258 	 * %G_APPLICATION_HANDLES_COMMAND_LINE the "normal processing" will
1259 	 * send the @options dictionary to the primary instance where it can be
1260 	 * read with g_application_command_line_get_options_dict().  The signal
1261 	 * handler can modify the dictionary before returning, and the
1262 	 * modified dictionary will be sent.
1263 	 *
1264 	 * In the event that %G_APPLICATION_HANDLES_COMMAND_LINE is not set,
1265 	 * "normal processing" will treat the remaining uncollected command
1266 	 * line arguments as filenames or URIs.  If there are no arguments,
1267 	 * the application is activated by g_application_activate().  One or
1268 	 * more arguments results in a call to g_application_open().
1269 	 *
1270 	 * If you want to handle the local commandline arguments for yourself
1271 	 * by converting them to calls to g_application_open() or
1272 	 * g_action_group_activate_action() then you must be sure to register
1273 	 * the application first.  You should probably not call
1274 	 * g_application_activate() for yourself, however: just return -1 and
1275 	 * allow the default handler to do it for you.  This will ensure that
1276 	 * the `--gapplication-service` switch works properly (i.e. no activation
1277 	 * in that case).
1278 	 *
1279 	 * Note that this signal is emitted from the default implementation of
1280 	 * local_command_line().  If you override that function and don't
1281 	 * chain up then this signal will never be emitted.
1282 	 *
1283 	 * You can override local_command_line() if you need more powerful
1284 	 * capabilities than what is provided here, but this should not
1285 	 * normally be required.
1286 	 *
1287 	 * Params:
1288 	 *     options = the options dictionary
1289 	 *
1290 	 * Returns: an exit code. If you have handled your options and want
1291 	 *     to exit the process, return a non-negative option, 0 for success,
1292 	 *     and a positive value for failure. To continue, return -1 to let
1293 	 *     the default option processing continue.
1294 	 *
1295 	 * Since: 2.40
1296 	 */
1297 	gulong addOnHandleLocalOptions(int delegate(VariantDict, Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1298 	{
1299 		return Signals.connect(this, "handle-local-options", dlg, connectFlags ^ ConnectFlags.SWAPPED);
1300 	}
1301 
1302 	/**
1303 	 * The ::open signal is emitted on the primary instance when there are
1304 	 * files to open. See g_application_open() for more information.
1305 	 *
1306 	 * Params:
1307 	 *     files = an array of #GFiles
1308 	 *     nFiles = the length of @files
1309 	 *     hint = a hint provided by the calling instance
1310 	 */
1311 	gulong addOnOpen(void delegate(void*, int, string, Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1312 	{
1313 		return Signals.connect(this, "open", dlg, connectFlags ^ ConnectFlags.SWAPPED);
1314 	}
1315 
1316 	/**
1317 	 * The ::shutdown signal is emitted only on the registered primary instance
1318 	 * immediately after the main loop terminates.
1319 	 */
1320 	gulong addOnShutdown(void delegate(Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1321 	{
1322 		return Signals.connect(this, "shutdown", dlg, connectFlags ^ ConnectFlags.SWAPPED);
1323 	}
1324 
1325 	/**
1326 	 * The ::startup signal is emitted on the primary instance immediately
1327 	 * after registration. See g_application_register().
1328 	 */
1329 	gulong addOnStartup(void delegate(Application) dlg, ConnectFlags connectFlags=cast(ConnectFlags)0)
1330 	{
1331 		return Signals.connect(this, "startup", dlg, connectFlags ^ ConnectFlags.SWAPPED);
1332 	}
1333 }