GAppInfo

GAppInfo — Application information and launch contexts

Functions

GAppInfo * g_app_info_create_from_commandline ()
GAppInfo * g_app_info_dup ()
gboolean g_app_info_equal ()
const char * g_app_info_get_id ()
const char * g_app_info_get_name ()
const char * g_app_info_get_display_name ()
const char * g_app_info_get_description ()
const char * g_app_info_get_executable ()
const char * g_app_info_get_commandline ()
GIcon * g_app_info_get_icon ()
gboolean g_app_info_launch ()
gboolean g_app_info_supports_files ()
gboolean g_app_info_supports_uris ()
gboolean g_app_info_launch_uris ()
gboolean g_app_info_should_show ()
gboolean g_app_info_can_delete ()
gboolean g_app_info_delete ()
void g_app_info_reset_type_associations ()
gboolean g_app_info_set_as_default_for_type ()
gboolean g_app_info_set_as_default_for_extension ()
gboolean g_app_info_set_as_last_used_for_type ()
gboolean g_app_info_add_supports_type ()
gboolean g_app_info_can_remove_supports_type ()
gboolean g_app_info_remove_supports_type ()
const char ** g_app_info_get_supported_types ()
GList * g_app_info_get_all ()
GList * g_app_info_get_all_for_type ()
GAppInfo * g_app_info_get_default_for_type ()
GAppInfo * g_app_info_get_default_for_uri_scheme ()
GList * g_app_info_get_fallback_for_type ()
GList * g_app_info_get_recommended_for_type ()
gboolean g_app_info_launch_default_for_uri ()
void g_app_info_launch_default_for_uri_async ()
gboolean g_app_info_launch_default_for_uri_finish ()
void g_app_launch_context_setenv ()
void g_app_launch_context_unsetenv ()
char ** g_app_launch_context_get_environment ()
char * g_app_launch_context_get_display ()
char * g_app_launch_context_get_startup_notify_id ()
void g_app_launch_context_launch_failed ()
GAppLaunchContext * g_app_launch_context_new ()

Types and Values

Object Hierarchy

    GInterface
    ╰── GAppInfo
    GObject
    ╰── GAppLaunchContext

Prerequisites

GAppInfo requires GObject.

Known Implementations

GAppInfo is implemented by GDesktopAppInfo.

Includes

#include <gio/gio.h>

Description

GAppInfo and GAppLaunchContext are used for describing and launching applications installed on the system.

As of GLib 2.20, URIs will always be converted to POSIX paths (using g_file_get_path()) when using g_app_info_launch() even if the application requested an URI and not a POSIX path. For example for an desktop-file based application with Exec key totem %U and a single URI, sftp://foo/file.avi, then /home/user/.gvfs/sftp on foo/file.avi will be passed. This will only work if a set of suitable GIO extensions (such as gvfs 2.26 compiled with FUSE support), is available and operational; if this is not the case, the URI will be passed unmodified to the application. Some URIs, such as mailto:, of course cannot be mapped to a POSIX path (in gvfs there's no FUSE mount for it); such URIs will be passed unmodified to the application.

Specifically for gvfs 2.26 and later, the POSIX URI will be mapped back to the GIO URI in the GFile constructors (since gvfs implements the GVfs extension point). As such, if the application needs to examine the URI, it needs to use g_file_get_uri() or similar on GFile. In other words, an application cannot assume that the URI passed to e.g. g_file_new_for_commandline_arg() is equal to the result of g_file_get_uri(). The following snippet illustrates this:

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GFile *f;
char *uri;

file = g_file_new_for_commandline_arg (uri_from_commandline);

uri = g_file_get_uri (file);
strcmp (uri, uri_from_commandline) == 0;
g_free (uri);

if (g_file_has_uri_scheme (file, "cdda"))
  {
    // do something special with uri
  }
g_object_unref (file);

This code will work when both cdda://sr0/Track 1.wav and /home/user/.gvfs/cdda on sr0/Track 1.wav is passed to the application. It should be noted that it's generally not safe for applications to rely on the format of a particular URIs. Different launcher applications (e.g. file managers) may have different ideas of what a given URI means.

Functions

g_app_info_create_from_commandline ()

GAppInfo *
g_app_info_create_from_commandline (const char *commandline,
                                    const char *application_name,
                                    GAppInfoCreateFlags flags,
                                    GError **error);

Creates a new GAppInfo from the given information.

Note that for commandline , the quoting rules of the Exec key of the freedesktop.org Desktop Entry Specification are applied. For example, if the commandline contains percent-encoded URIs, the percent-character must be doubled in order to prevent it from being swallowed by Exec key unquoting. See the specification for exact quoting rules.

Parameters

commandline

the commandline to use

 

application_name

the application name, or NULL to use commandline .

[nullable]

flags

flags that can specify details of the created GAppInfo

 

error

a GError location to store the error occurring, NULL to ignore.

 

Returns

new GAppInfo for given command.

[transfer full]


g_app_info_dup ()

GAppInfo *
g_app_info_dup (GAppInfo *appinfo);

Creates a duplicate of a GAppInfo.

Parameters

appinfo

a GAppInfo.

 

Returns

a duplicate of appinfo .

[transfer full]


g_app_info_equal ()

gboolean
g_app_info_equal (GAppInfo *appinfo1,
                  GAppInfo *appinfo2);

Checks if two GAppInfos are equal.

Note that the check <em>may not</em> compare each individual field, and only does an identity check. In case detecting changes in the contents is needed, program code must additionally compare relevant fields.

Parameters

appinfo1

the first GAppInfo.

 

appinfo2

the second GAppInfo.

 

Returns

TRUE if appinfo1 is equal to appinfo2 . FALSE otherwise.


g_app_info_get_id ()

const char *
g_app_info_get_id (GAppInfo *appinfo);

Gets the ID of an application. An id is a string that identifies the application. The exact format of the id is platform dependent. For instance, on Unix this is the desktop file id from the xdg menu specification.

Note that the returned ID may be NULL, depending on how the appinfo has been constructed.

Parameters

appinfo

a GAppInfo.

 

Returns

a string containing the application's ID.


g_app_info_get_name ()

const char *
g_app_info_get_name (GAppInfo *appinfo);

Gets the installed name of the application.

Parameters

appinfo

a GAppInfo.

 

Returns

the name of the application for appinfo .


g_app_info_get_display_name ()

const char *
g_app_info_get_display_name (GAppInfo *appinfo);

Gets the display name of the application. The display name is often more descriptive to the user than the name itself.

Parameters

appinfo

a GAppInfo.

 

Returns

the display name of the application for appinfo , or the name if no display name is available.

Since: 2.24


g_app_info_get_description ()

const char *
g_app_info_get_description (GAppInfo *appinfo);

Gets a human-readable description of an installed application.

Parameters

appinfo

a GAppInfo.

 

Returns

a string containing a description of the application appinfo , or NULL if none.


g_app_info_get_executable ()

const char *
g_app_info_get_executable (GAppInfo *appinfo);

Gets the executable's name for the installed application.

Parameters

appinfo

a GAppInfo

 

Returns

a string containing the appinfo 's application binaries name.

[type filename]


g_app_info_get_commandline ()

const char *
g_app_info_get_commandline (GAppInfo *appinfo);

Gets the commandline with which the application will be started.

Parameters

appinfo

a GAppInfo

 

Returns

a string containing the appinfo 's commandline, or NULL if this information is not available.

[type filename]

Since: 2.20


g_app_info_get_icon ()

GIcon *
g_app_info_get_icon (GAppInfo *appinfo);

Gets the icon for the application.

Parameters

appinfo

a GAppInfo.

 

Returns

the default GIcon for appinfo or NULL if there is no default icon.

[transfer none]


g_app_info_launch ()

gboolean
g_app_info_launch (GAppInfo *appinfo,
                   GList *files,
                   GAppLaunchContext *launch_context,
                   GError **error);

Launches the application. Passes files to the launched application as arguments, using the optional launch_context to get information about the details of the launcher (like what screen it is on). On error, error will be set accordingly.

To launch the application without arguments pass a NULL files list.

Note that even if the launch is successful the application launched can fail to start if it runs into problems during startup. There is no way to detect this.

Some URIs can be changed when passed through a GFile (for instance unsupported URIs with strange formats like mailto:), so if you have a textual URI you want to pass in as argument, consider using g_app_info_launch_uris() instead.

The launched application inherits the environment of the launching process, but it can be modified with g_app_launch_context_setenv() and g_app_launch_context_unsetenv().

On UNIX, this function sets the GIO_LAUNCHED_DESKTOP_FILE environment variable with the path of the launched desktop file and GIO_LAUNCHED_DESKTOP_FILE_PID to the process id of the launched process. This can be used to ignore GIO_LAUNCHED_DESKTOP_FILE, should it be inherited by further processes. The DISPLAY and DESKTOP_STARTUP_ID environment variables are also set, based on information provided in launch_context .

Parameters

appinfo

a GAppInfo

 

files

a GList of GFile objects.

[nullable][element-type GFile]

launch_context

a GAppLaunchContext or NULL.

[nullable]

error

a GError

 

Returns

TRUE on successful launch, FALSE otherwise.


g_app_info_supports_files ()

gboolean
g_app_info_supports_files (GAppInfo *appinfo);

Checks if the application accepts files as arguments.

Parameters

appinfo

a GAppInfo.

 

Returns

TRUE if the appinfo supports files.


g_app_info_supports_uris ()

gboolean
g_app_info_supports_uris (GAppInfo *appinfo);

Checks if the application supports reading files and directories from URIs.

Parameters

appinfo

a GAppInfo.

 

Returns

TRUE if the appinfo supports URIs.


g_app_info_launch_uris ()

gboolean
g_app_info_launch_uris (GAppInfo *appinfo,
                        GList *uris,
                        GAppLaunchContext *launch_context,
                        GError **error);

Launches the application. This passes the uris to the launched application as arguments, using the optional launch_context to get information about the details of the launcher (like what screen it is on). On error, error will be set accordingly.

To launch the application without arguments pass a NULL uris list.

Note that even if the launch is successful the application launched can fail to start if it runs into problems during startup. There is no way to detect this.

Parameters

appinfo

a GAppInfo

 

uris

a GList containing URIs to launch.

[nullable][element-type utf8]

launch_context

a GAppLaunchContext or NULL.

[nullable]

error

a GError

 

Returns

TRUE on successful launch, FALSE otherwise.


g_app_info_should_show ()

gboolean
g_app_info_should_show (GAppInfo *appinfo);

Checks if the application info should be shown in menus that list available applications.

Parameters

appinfo

a GAppInfo.

 

Returns

TRUE if the appinfo should be shown, FALSE otherwise.


g_app_info_can_delete ()

gboolean
g_app_info_can_delete (GAppInfo *appinfo);

Obtains the information whether the GAppInfo can be deleted. See g_app_info_delete().

Parameters

appinfo

a GAppInfo

 

Returns

TRUE if appinfo can be deleted

Since: 2.20


g_app_info_delete ()

gboolean
g_app_info_delete (GAppInfo *appinfo);

Tries to delete a GAppInfo.

On some platforms, there may be a difference between user-defined GAppInfos which can be deleted, and system-wide ones which cannot. See g_app_info_can_delete().

Virtual: do_delete

Parameters

appinfo

a GAppInfo

 

Returns

TRUE if appinfo has been deleted

Since: 2.20


g_app_info_reset_type_associations ()

void
g_app_info_reset_type_associations (const char *content_type);

Removes all changes to the type associations done by g_app_info_set_as_default_for_type(), g_app_info_set_as_default_for_extension(), g_app_info_add_supports_type() or g_app_info_remove_supports_type().

Parameters

content_type

a content type

 

Since: 2.20


g_app_info_set_as_default_for_type ()

gboolean
g_app_info_set_as_default_for_type (GAppInfo *appinfo,
                                    const char *content_type,
                                    GError **error);

Sets the application as the default handler for a given type.

Parameters

appinfo

a GAppInfo.

 

content_type

the content type.

 

error

a GError.

 

Returns

TRUE on success, FALSE on error.


g_app_info_set_as_default_for_extension ()

gboolean
g_app_info_set_as_default_for_extension
                               (GAppInfo *appinfo,
                                const char *extension,
                                GError **error);

Sets the application as the default handler for the given file extension.

Parameters

appinfo

a GAppInfo.

 

extension

a string containing the file extension (without the dot).

[type filename]

error

a GError.

 

Returns

TRUE on success, FALSE on error.


g_app_info_set_as_last_used_for_type ()

gboolean
g_app_info_set_as_last_used_for_type (GAppInfo *appinfo,
                                      const char *content_type,
                                      GError **error);

Sets the application as the last used application for a given type. This will make the application appear as first in the list returned by g_app_info_get_recommended_for_type(), regardless of the default application for that content type.

Parameters

appinfo

a GAppInfo.

 

content_type

the content type.

 

error

a GError.

 

Returns

TRUE on success, FALSE on error.


g_app_info_add_supports_type ()

gboolean
g_app_info_add_supports_type (GAppInfo *appinfo,
                              const char *content_type,
                              GError **error);

Adds a content type to the application information to indicate the application is capable of opening files with the given content type.

Parameters

appinfo

a GAppInfo.

 

content_type

a string.

 

error

a GError.

 

Returns

TRUE on success, FALSE on error.


g_app_info_can_remove_supports_type ()

gboolean
g_app_info_can_remove_supports_type (GAppInfo *appinfo);

Checks if a supported content type can be removed from an application.

Parameters

appinfo

a GAppInfo.

 

Returns

TRUE if it is possible to remove supported content types from a given appinfo , FALSE if not.


g_app_info_remove_supports_type ()

gboolean
g_app_info_remove_supports_type (GAppInfo *appinfo,
                                 const char *content_type,
                                 GError **error);

Removes a supported type from an application, if possible.

Parameters

appinfo

a GAppInfo.

 

content_type

a string.

 

error

a GError.

 

Returns

TRUE on success, FALSE on error.


g_app_info_get_supported_types ()

const char **
g_app_info_get_supported_types (GAppInfo *appinfo);

Retrieves the list of content types that app_info claims to support. If this information is not provided by the environment, this function will return NULL. This function does not take in consideration associations added with g_app_info_add_supports_type(), but only those exported directly by the application.

Parameters

appinfo

a GAppInfo that can handle files

 

Returns

a list of content types.

[transfer none][array zero-terminated=1][element-type utf8]

Since: 2.34


g_app_info_get_all ()

GList *
g_app_info_get_all (void);

Gets a list of all of the applications currently registered on this system.

For desktop files, this includes applications that have NoDisplay=true set or are excluded from display by means of OnlyShowIn or NotShowIn. See g_app_info_should_show(). The returned list does not include applications which have the Hidden key set.

Returns

a newly allocated GList of references to GAppInfos.

[element-type GAppInfo][transfer full]


g_app_info_get_all_for_type ()

GList *
g_app_info_get_all_for_type (const char *content_type);

Gets a list of all GAppInfos for a given content type, including the recommended and fallback GAppInfos. See g_app_info_get_recommended_for_type() and g_app_info_get_fallback_for_type().

Parameters

content_type

the content type to find a GAppInfo for

 

Returns

GList of GAppInfos for given content_type or NULL on error.

[element-type GAppInfo][transfer full]


g_app_info_get_default_for_type ()

GAppInfo *
g_app_info_get_default_for_type (const char *content_type,
                                 gboolean must_support_uris);

Gets the default GAppInfo for a given content type.

Parameters

content_type

the content type to find a GAppInfo for

 

must_support_uris

if TRUE, the GAppInfo is expected to support URIs

 

Returns

GAppInfo for given content_type or NULL on error.

[transfer full]


g_app_info_get_default_for_uri_scheme ()

GAppInfo *
g_app_info_get_default_for_uri_scheme (const char *uri_scheme);

Gets the default application for handling URIs with the given URI scheme. A URI scheme is the initial part of the URI, up to but not including the ':', e.g. "http", "ftp" or "sip".

Parameters

uri_scheme

a string containing a URI scheme.

 

Returns

GAppInfo for given uri_scheme or NULL on error.

[transfer full]


g_app_info_get_fallback_for_type ()

GList *
g_app_info_get_fallback_for_type (const gchar *content_type);

Gets a list of fallback GAppInfos for a given content type, i.e. those applications which claim to support the given content type by MIME type subclassing and not directly.

Parameters

content_type

the content type to find a GAppInfo for

 

Returns

GList of GAppInfos for given content_type or NULL on error.

[element-type GAppInfo][transfer full]

Since: 2.28


g_app_info_get_recommended_for_type ()

GList *
g_app_info_get_recommended_for_type (const gchar *content_type);

Gets a list of recommended GAppInfos for a given content type, i.e. those applications which claim to support the given content type exactly, and not by MIME type subclassing. Note that the first application of the list is the last used one, i.e. the last one for which g_app_info_set_as_last_used_for_type() has been called.

Parameters

content_type

the content type to find a GAppInfo for

 

Returns

GList of GAppInfos for given content_type or NULL on error.

[element-type GAppInfo][transfer full]

Since: 2.28


g_app_info_launch_default_for_uri ()

gboolean
g_app_info_launch_default_for_uri (const char *uri,
                                   GAppLaunchContext *launch_context,
                                   GError **error);

Utility function that launches the default application registered to handle the specified uri. Synchronous I/O is done on the uri to detect the type of the file if required.

Parameters

uri

the uri to show

 

launch_context

an optional GAppLaunchContext.

[nullable]

error

return location for an error, or NULL.

[nullable]

Returns

TRUE on success, FALSE on error.


g_app_info_launch_default_for_uri_async ()

void
g_app_info_launch_default_for_uri_async
                               (const char *uri,
                                GAppLaunchContext *launch_context,
                                GCancellable *cancellable,
                                GAsyncReadyCallback callback,
                                gpointer user_data);

Async version of g_app_info_launch_default_for_uri().

This version is useful if you are interested in receiving error information in the case where the application is sandboxed and the portal may present an application chooser dialog to the user.

Parameters

uri

the uri to show

 

context

an optional GAppLaunchContext cancellable: (nullable): a GCancellable.

[nullable]

callback

a GASyncReadyCallback to call when the request is done.

[nullable]

user_data

data to pass to callback .

[nullable]

Since: 2.50


g_app_info_launch_default_for_uri_finish ()

gboolean
g_app_info_launch_default_for_uri_finish
                               (GAsyncResult *result,
                                GError **error);

Finishes an asynchronous launch-default-for-uri operation.

Parameters

result

a GAsyncResult

 

error

return location for an error, or NULL.

[nullable]

Returns

TRUE if the launch was successful, FALSE if error is set

Since: 2.50


g_app_launch_context_setenv ()

void
g_app_launch_context_setenv (GAppLaunchContext *context,
                             const char *variable,
                             const char *value);

Arranges for variable to be set to value in the child's environment when context is used to launch an application.

Parameters

context

a GAppLaunchContext

 

variable

the environment variable to set

 

value

the value for to set the variable to.

 

Since: 2.32


g_app_launch_context_unsetenv ()

void
g_app_launch_context_unsetenv (GAppLaunchContext *context,
                               const char *variable);

Arranges for variable to be unset in the child's environment when context is used to launch an application.

Parameters

context

a GAppLaunchContext

 

variable

the environment variable to remove

 

Since: 2.32


g_app_launch_context_get_environment ()

char **
g_app_launch_context_get_environment (GAppLaunchContext *context);

Gets the complete environment variable list to be passed to the child process when context is used to launch an application. This is a NULL-terminated array of strings, where each string has the form KEY=VALUE.

Parameters

context

a GAppLaunchContext

 

Returns

the child's environment.

[array zero-terminated=1][transfer full]

Since: 2.32


g_app_launch_context_get_display ()

char *
g_app_launch_context_get_display (GAppLaunchContext *context,
                                  GAppInfo *info,
                                  GList *files);

Gets the display string for the context . This is used to ensure new applications are started on the same display as the launching application, by setting the DISPLAY environment variable.

Parameters

context

a GAppLaunchContext

 

info

a GAppInfo

 

files

a GList of GFile objects.

[element-type GFile]

Returns

a display string for the display.


g_app_launch_context_get_startup_notify_id ()

char *
g_app_launch_context_get_startup_notify_id
                               (GAppLaunchContext *context,
                                GAppInfo *info,
                                GList *files);

Initiates startup notification for the application and returns the DESKTOP_STARTUP_ID for the launched operation, if supported.

Startup notification IDs are defined in the [FreeDesktop.Org Startup Notifications standard](http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt").

Parameters

context

a GAppLaunchContext

 

info

a GAppInfo

 

files

a GList of of GFile objects.

[element-type GFile]

Returns

a startup notification ID for the application, or NULL if not supported.


g_app_launch_context_launch_failed ()

void
g_app_launch_context_launch_failed (GAppLaunchContext *context,
                                    const char *startup_notify_id);

Called when an application has failed to launch, so that it can cancel the application startup notification started in g_app_launch_context_get_startup_notify_id().

Parameters

context

a GAppLaunchContext.

 

startup_notify_id

the startup notification id that was returned by g_app_launch_context_get_startup_notify_id().

 

g_app_launch_context_new ()

GAppLaunchContext *
g_app_launch_context_new (void);

Creates a new application launch context. This is not normally used, instead you instantiate a subclass of this, such as GdkAppLaunchContext.

Returns

a GAppLaunchContext.

Types and Values

enum GAppInfoCreateFlags

Flags used when creating a GAppInfo.

Members

G_APP_INFO_CREATE_NONE

No flags.

 

G_APP_INFO_CREATE_NEEDS_TERMINAL

Application opens in a terminal window.

 

G_APP_INFO_CREATE_SUPPORTS_URIS

Application supports URI arguments.

 

G_APP_INFO_CREATE_SUPPORTS_STARTUP_NOTIFICATION

Application supports startup notification. Since 2.26

 

GAppInfo

typedef struct _GAppInfo GAppInfo;

Information about an installed application and methods to launch it (with file arguments).


struct GAppInfoIface

struct GAppInfoIface {
  GTypeInterface g_iface;

  /* Virtual Table */

  GAppInfo *   (* dup)                          (GAppInfo           *appinfo);
  gboolean     (* equal)                        (GAppInfo           *appinfo1,
                                                 GAppInfo           *appinfo2);
  const char * (* get_id)                       (GAppInfo           *appinfo);
  const char * (* get_name)                     (GAppInfo           *appinfo);
  const char * (* get_description)              (GAppInfo           *appinfo);
  const char * (* get_executable)               (GAppInfo           *appinfo);
  GIcon *      (* get_icon)                     (GAppInfo           *appinfo);
  gboolean     (* launch)                       (GAppInfo           *appinfo,
                                                 GList              *files,
                                                 GAppLaunchContext  *launch_context,
                                                 GError            **error);
  gboolean     (* supports_uris)                (GAppInfo           *appinfo);
  gboolean     (* supports_files)               (GAppInfo           *appinfo);
  gboolean     (* launch_uris)                  (GAppInfo           *appinfo,
                                                 GList              *uris,
                                                 GAppLaunchContext  *launch_context,
                                                 GError            **error);
  gboolean     (* should_show)                  (GAppInfo           *appinfo);

  /* For changing associations */
  gboolean     (* set_as_default_for_type)      (GAppInfo           *appinfo,
                                                 const char         *content_type,
                                                 GError            **error);
  gboolean     (* set_as_default_for_extension) (GAppInfo           *appinfo,
                                                 const char         *extension,
                                                 GError            **error);
  gboolean     (* add_supports_type)            (GAppInfo           *appinfo,
                                                 const char         *content_type,
                                                 GError            **error);
  gboolean     (* can_remove_supports_type)     (GAppInfo           *appinfo);
  gboolean     (* remove_supports_type)         (GAppInfo           *appinfo,
                                                 const char         *content_type,
                                                 GError            **error);
  gboolean     (* can_delete)                   (GAppInfo           *appinfo);
  gboolean     (* do_delete)                    (GAppInfo           *appinfo);
  const char * (* get_commandline)              (GAppInfo           *appinfo);
  const char * (* get_display_name)             (GAppInfo           *appinfo);
  gboolean     (* set_as_last_used_for_type)    (GAppInfo           *appinfo,
                                                 const char         *content_type,
                                                 GError            **error);
  const char ** (* get_supported_types)         (GAppInfo           *appinfo);
};

Application Information interface, for operating system portability.

Members

dup ()

Copies a GAppInfo.

 

equal ()

Checks two GAppInfos for equality.

 

get_id ()

Gets a string identifier for a GAppInfo.

 

get_name ()

Gets the name of the application for a GAppInfo.

 

get_description ()

Gets a short description for the application described by the GAppInfo.

 

get_executable ()

Gets the executable name for the GAppInfo.

 

get_icon ()

Gets the GIcon for the GAppInfo.

 

launch ()

Launches an application specified by the GAppInfo.

 

supports_uris ()

Indicates whether the application specified supports launching URIs.

 

supports_files ()

Indicates whether the application specified accepts filename arguments.

 

launch_uris ()

Launches an application with a list of URIs.

 

should_show ()

Returns whether an application should be shown (e.g. when getting a list of installed applications). FreeDesktop.Org Startup Notification Specification.

 

set_as_default_for_type ()

Sets an application as default for a given content type.

 

set_as_default_for_extension ()

Sets an application as default for a given file extension.

 

add_supports_type ()

Adds to the GAppInfo information about supported file types.

 

can_remove_supports_type ()

Checks for support for removing supported file types from a GAppInfo.

 

remove_supports_type ()

Removes a supported application type from a GAppInfo.

 

can_delete ()

Checks if a GAppInfo can be deleted. Since 2.20

 

do_delete ()

Deletes a GAppInfo. Since 2.20

 

get_commandline ()

Gets the commandline for the GAppInfo. Since 2.20

 

get_display_name ()

Gets the display name for the GAppInfo. Since 2.24

 

set_as_last_used_for_type ()

Sets the application as the last used. See g_app_info_set_as_last_used_for_type().

 

get_supported_types ()

Retrieves the list of content types that app_info claims to support.

 

GAppLaunchContext

typedef struct _GAppLaunchContext GAppLaunchContext;

Integrating the launch with the launching application. This is used to handle for instance startup notification and launching the new application on the same screen as the launching window.

Signal Details

The “launch-failed” signal

void
user_function (GAppLaunchContext *context,
               gchar             *startup_notify_id,
               gpointer           user_data)

The ::launch-failed signal is emitted when a GAppInfo launch fails. The startup notification id is provided, so that the launcher can cancel the startup notification.

Parameters

context

the object emitting the signal

 

startup_notify_id

the startup notification id for the failed launch

 

user_data

user data set when the signal handler was connected.

 

Flags: Run Last

Since: 2.36


The “launched” signal

void
user_function (GAppLaunchContext *context,
               GAppInfo          *info,
               GVariant          *platform_data,
               gpointer           user_data)

The ::launched signal is emitted when a GAppInfo is successfully launched. The platform_data is an GVariant dictionary mapping strings to variants (ie a{sv}), which contains additional, platform-specific data about this launch. On UNIX, at least the "pid" and "startup-notification-id" keys will be present.

Parameters

context

the object emitting the signal

 

info

the GAppInfo that was just launched

 

platform_data

additional platform-specific data for this launch

 

user_data

user data set when the signal handler was connected.

 

Flags: Run Last

Since: 2.36

See Also

GAppInfoMonitor