|  |  |  | telepathy-glib API Reference Manual |  | 
|---|---|---|---|---|
| Top | Description | Object Hierarchy | Properties | ||||
#include <telepathy-glib/telepathy-glib.h>
                    TpCapabilities;
GPtrArray *         tp_capabilities_get_channel_classes (TpCapabilities *self);
GVariant *          tp_capabilities_dup_channel_classes_variant
                                                        (TpCapabilities *self);
gboolean            tp_capabilities_is_specific_to_contact
                                                        (TpCapabilities *self);
gboolean            tp_capabilities_supports_text_chatrooms
                                                        (TpCapabilities *self);
gboolean            tp_capabilities_supports_text_chats (TpCapabilities *self);
gboolean            tp_capabilities_supports_sms        (TpCapabilities *self);
gboolean            tp_capabilities_supports_audio_call (TpCapabilities *self,
                                                         TpHandleType handle_type);
gboolean            tp_capabilities_supports_audio_video_call
                                                        (TpCapabilities *self,
                                                         TpHandleType handle_type);
gboolean            tp_capabilities_supports_file_transfer
                                                        (TpCapabilities *self);
gboolean            tp_capabilities_supports_file_transfer_description
                                                        (TpCapabilities *self);
gboolean            tp_capabilities_supports_file_transfer_initial_offset
                                                        (TpCapabilities *self);
gboolean            tp_capabilities_supports_file_transfer_timestamp
                                                        (TpCapabilities *self);
gboolean            tp_capabilities_supports_file_transfer_uri
                                                        (TpCapabilities *self);
gboolean            tp_capabilities_supports_stream_tubes
                                                        (TpCapabilities *self,
                                                         TpHandleType handle_type,
                                                         const gchar *service);
gboolean            tp_capabilities_supports_dbus_tubes (TpCapabilities *self,
                                                         TpHandleType handle_type,
                                                         const gchar *service_name);
gboolean            tp_capabilities_supports_contact_search
                                                        (TpCapabilities *self,
                                                         gboolean *with_limit,
                                                         gboolean *with_server);
gboolean            tp_capabilities_supports_room_list  (TpCapabilities *self,
                                                         gboolean *with_server);
"channel-classes" GPtrArray_GValueArray_GHashTable_gchararray+GValue_+GStrv__* : Read / Write / Construct Only "channel-classes-variant" GVariant* : Read "contact-specific" gboolean : Read / Write / Construct Only
TpCapabilities objects represent the capabilities a TpConnection or a TpContact supports.
typedef struct _TpCapabilities TpCapabilities;
An object representing capabilities a TpConnection or TpContact supports.
Since 0.11.3
GPtrArray *         tp_capabilities_get_channel_classes (TpCapabilities *self);
| 
 | a TpCapabilities object | 
| Returns : | the same GPtrArray as the "channel-classes" property. [transfer none][element-type GHashTable] | 
Since 0.11.3
GVariant *          tp_capabilities_dup_channel_classes_variant
                                                        (TpCapabilities *self);
Return the "channel-classes-variant" property
| 
 | a TpCapabilities | 
| Returns : | the value of the "channel-classes-variant" property. [transfer full] | 
Since 0.19.0
gboolean            tp_capabilities_is_specific_to_contact
                                                        (TpCapabilities *self);
| 
 | a TpCapabilities object | 
| Returns : | the same gboolean as the "contact-specific" property | 
Since 0.11.3
gboolean            tp_capabilities_supports_text_chatrooms
                                                        (TpCapabilities *self);
If the "contact-specific" property is FALSE, this function
checks if named text chatrooms can be joined by providing a chatroom
identifier, for instance by calling
tp_account_channel_request_new_text() followed by
tp_account_channel_request_set_target_id() with TP_HANDLE_TYPE_ROOM.
If the "contact-specific" property is TRUE, this function
checks if the contact associated with this TpCapabilities can be invited
to named text chatrooms.
If the protocol is such that chatrooms can be joined or contacts can be
invited, but only via a more elaborate D-Bus API than normal
(because more information is needed), then this method will return FALSE.
| 
 | a TpCapabilities object | 
| Returns : | TRUEif a channel request containing Text as ChannelType,
HandleTypeRoom as TargetHandleType and a channel identifier can be
expected to work,FALSEotherwise. | 
Since 0.11.3
gboolean            tp_capabilities_supports_text_chats (TpCapabilities *self);
Return whether private text channels can be established by providing
a contact identifier, for instance by calling
tp_account_channel_request_new_text() followed by
tp_account_channel_request_set_target_contact().
If the protocol is such that text chats can be established, but only via a
more elaborate D-Bus API than normal (because more information is needed),
then this method will return FALSE.
| 
 | a TpCapabilities object | 
| Returns : | TRUEif a channel request containing Text as ChannelType,
HandleTypeContact as TargetHandleType and a contact identifier can be
expected to work,FALSEotherwise. | 
Since 0.11.3
gboolean            tp_capabilities_supports_sms        (TpCapabilities *self);
If the "contact-specific" property is FALSE, this function
checks if SMS text channels can be requested with the connection associated
with this TpCapabilities.
If the "contact-specific" property is TRUE, this function
checks if the contact associated with this TpCapabilities supports
SMS text channels.
| 
 | a TpCapabilities object | 
| Returns : | TRUEif a channel request containing Text as ChannelType,
HandleTypeContact as TargetHandleType, a channel identifier and
TP_PROP_CHANNEL_INTERFACE_SMS_SMS_CHANNEL set toTRUEcan be
expected to work,FALSEotherwise. | 
Since 0.19.0
gboolean tp_capabilities_supports_audio_call (TpCapabilities *self,TpHandleType handle_type);
Return whether audio calls can be established, for instance by calling
tp_account_channel_request_new_audio_call(), followed by
tp_account_channel_request_set_target_id() with handle_type.
To check whether requests using
tp_account_channel_request_set_target_contact() would work, set
handle_type to TP_HANDLE_TYPE_CONTACT.
| 
 | a TpCapabilities object | 
| 
 | the handle type of the call; TP_HANDLE_TYPE_CONTACT for private, TP_HANDLE_TYPE_ROOM or TP_HANDLE_TYPE_NONE for conference (depending on the protocol) | 
| Returns : | TRUEif a channel request containing Call as ChannelType,handle_typeas TargetHandleType, a True value for InitialAudio and an
identifier of the appropriate type can be expected to work,FALSEotherwise. | 
Since 0.17.6
gboolean tp_capabilities_supports_audio_video_call (TpCapabilities *self,TpHandleType handle_type);
Return whether audio/video calls can be established, for instance by calling
tp_account_channel_request_new_audio_video_call(), followed by
tp_account_channel_request_set_target_id() with handle_type.
To check whether requests using
tp_account_channel_request_set_target_contact() would work, set
handle_type to TP_HANDLE_TYPE_CONTACT.
| 
 | a TpCapabilities object | 
| 
 | the handle type of the call; TP_HANDLE_TYPE_CONTACT for private, TP_HANDLE_TYPE_ROOM or TP_HANDLE_TYPE_NONE for conference (depending on the protocol) | 
| Returns : | TRUEif a channel request containing Call as ChannelType,handle_typeas TargetHandleType, a True value for
InitialAudio/InitialVideo and an identifier of the appropriate type can be
expected to work,FALSEotherwise. | 
Since 0.17.6
gboolean            tp_capabilities_supports_file_transfer
                                                        (TpCapabilities *self);
Return whether private file transfer can be established by providing a contact identifier.
| 
 | a TpCapabilities object | 
| Returns : | TRUEif a channel request containing FileTransfer as ChannelType,
HandleTypeContact as TargetHandleType and a contact identifier can be
expected to work,FALSEotherwise. | 
Since 0.17.6
gboolean            tp_capabilities_supports_file_transfer_description
                                                        (TpCapabilities *self);
| 
 | a TpCapabilities object | 
| Returns : | TRUEif requests as described fortp_capabilities_supports_file_transfer()can also specify the outgoing
file's description | 
Since 0.19.0
gboolean            tp_capabilities_supports_file_transfer_initial_offset
                                                        (TpCapabilities *self);
Return whether an initial offset other than 0 can be specified on outgoing file transfers. This can be used to resume partial transfers, by omitting the part that has already been sent.
| 
 | a TpCapabilities object | 
| Returns : | TRUEif requests as described fortp_capabilities_supports_file_transfer()can also specify an
initial offset greater than 0 | 
Since 0.19.0
gboolean            tp_capabilities_supports_file_transfer_timestamp
                                                        (TpCapabilities *self);
| 
 | a TpCapabilities object | 
| Returns : | TRUEif requests as described fortp_capabilities_supports_file_transfer()can also specify the outgoing
file's timestamp | 
Since 0.19.0
gboolean            tp_capabilities_supports_file_transfer_uri
                                                        (TpCapabilities *self);
| 
 | a TpCapabilities object | 
| Returns : | TRUEif requests as described fortp_capabilities_supports_file_transfer()can also specify the outgoing
file's URI | 
Since 0.19.0
gboolean tp_capabilities_supports_stream_tubes (TpCapabilities *self,TpHandleType handle_type,const gchar *service);
If the "contact-specific" property is TRUE, this function
checks if the contact associated with this TpCapabilities supports
stream tubes with handle_type as TargetHandleType.
If service is not NULL, it also checks if it supports stream tubes
with service as TP_PROP_CHANNEL_TYPE_STREAM_TUBE_SERVICE.
If the "contact-specific" property is FALSE, this function
checks if the connection supports requesting stream tube channels with
handle_type as ChannelType. The service argument is unused in this case.
| 
 | a TpCapabilities object | 
| 
 | the handle type of the tube (either TP_HANDLE_TYPE_CONTACT or TP_HANDLE_TYPE_ROOM) | 
| 
 | the service of the tube, or NULL | 
| Returns : | TRUEif the contact or connection supports this type of stream
tubes. | 
Since 0.13.0
gboolean tp_capabilities_supports_dbus_tubes (TpCapabilities *self,TpHandleType handle_type,const gchar *service_name);
If the "contact-specific" property is TRUE, this function
checks if the contact associated with this TpCapabilities supports
D-Bus tubes with handle_type as TargetHandleType.
If service_name is not NULL, it also checks if it supports stream tubes
with service as TP_PROP_CHANNEL_TYPE_DBUS_TUBE_SERVICE_NAME.
If the "contact-specific" property is FALSE, this function
checks if the connection supports requesting D-Bus tube channels with
handle_type as ChannelType. The service_name argument is unused in
this case.
| 
 | a TpCapabilities object | 
| 
 | the handle type of the tube (either TP_HANDLE_TYPE_CONTACT or TP_HANDLE_TYPE_ROOM) | 
| 
 | the service name of the tube, or NULL | 
| Returns : | TRUEif the contact or connection supports this type of D-Bus
tubes. | 
Since 0.13.0
gboolean tp_capabilities_supports_contact_search (TpCapabilities *self,gboolean *with_limit,gboolean *with_server);
Return whether this protocol or connection can perform contact searches. Optionally, also return whether a limited number of results can be specified, and whether alternative servers can be searched.
| 
 | a TpCapabilities object | 
| 
 | if not NULL, used to returnTRUEif the limit
parameter totp_contact_search_new_async()andtp_contact_search_reset_async()can be nonzero. [out] | 
| 
 | if not NULL, used to returnTRUEif the server
parameter totp_contact_search_new_async()andtp_contact_search_reset_async()can be non-NULL. [out] | 
| Returns : | TRUEif TpContactSearch can be used. | 
Since 0.13.11
gboolean tp_capabilities_supports_room_list (TpCapabilities *self,gboolean *with_server);
Discovers whether this protocol or connection supports listing rooms.
Specifically, if this function returns TRUE, a room list channel can be
requested as follows:
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | GHashTable *request; TpAccountChannelRequest *req; request = tp_asv_new ( TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING, TP_IFACE_CHANNEL_TYPE_ROOM_LIST, TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_NONE, NULL); req = tp_account_channel_request_new (account, request, TP_USER_ACTION_TIME_CURRENT_TIME); tp_account_channel_request_create_and_handle_channel_async (req, NULL, create_channel_cb, NULL); g_object_unref (req); g_hash_table_unref (request); | 
If with_server is set to TRUE, a list of rooms on a particular server can
be requested as follows:
| 1 2 3 4 5 6 7 8 | /\* Same code as above but with request defined using: *\/ request = tp_asv_new ( TP_PROP_CHANNEL_CHANNEL_TYPE, G_TYPE_STRING, TP_IFACE_CHANNEL_TYPE_ROOM_LIST, TP_PROP_CHANNEL_TARGET_HANDLE_TYPE, G_TYPE_UINT, TP_HANDLE_TYPE_NONE, TP_PROP_CHANNEL_TYPE_ROOM_LIST_SERVER, G_TYPE_STRING, "characters.shakespeare.lit", NULL); | 
| 
 | a TpCapabilities object | 
| 
 | if not NULL, used to returnTRUEif the
TP_PROP_CHANNEL_TYPE_ROOM_LIST_SERVER property can be defined when
requesting a RoomList channel. [out] | 
| Returns : | TRUEif a channel request containing RoomList as ChannelType,
HandleTypeNone as TargetHandleType can be expected to work,FALSEotherwise. | 
Since 0.13.14
"channel-classes" property  "channel-classes"          GPtrArray_GValueArray_GHashTable_gchararray+GValue_+GStrv__*  : Read / Write / Construct Only
The underlying data structure used by Telepathy to represent the requests that can succeed.
This can be used by advanced clients to determine whether an unusually complex request would succeed. See the Telepathy D-Bus API Specification for details of how to interpret the returned GPtrArray of TP_STRUCT_TYPE_REQUESTABLE_CHANNEL_CLASS.
The higher-level methods like
tp_capabilities_supports_text_chats() are likely to be more useful to
the majority of clients.
"channel-classes-variant" property"channel-classes-variant" GVariant* : Read
The underlying data structure used by Telepathy to represent the requests that can succeed.
This can be used by advanced clients to determine whether an unusually complex request would succeed. See the Telepathy D-Bus API Specification for details of how to interpret the returned GVariant of type a(a{sv}as).
The higher-level methods like
tp_capabilities_supports_text_chats() are likely to be more useful to
the majority of clients.
Allowed values: GVariant<a(a{sv}as)>
Default value: NULL
Since 0.19.0
"contact-specific" property"contact-specific" gboolean : Read / Write / Construct Only
Whether this object accurately describes the capabilities of a particular contact, or if it's only a guess based on the capabilities of the underlying connection.
Default value: FALSE