.. _org.freedesktop.portal.ScreenCast:

=================================
ScreenCast
=================================

-----------
Description
-----------

.. _org.freedesktop.portal.ScreenCast Description:

Screen cast portal

The Screen cast portal allows to create screen cast sessions.

This documentation describes version 5 of this interface.



.. _org.freedesktop.portal.ScreenCast Properties:

----------
Properties
----------

.. _org.freedesktop.portal.ScreenCast:AvailableSourceTypes:

org.freedesktop.portal.ScreenCast:AvailableSourceTypes
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

::

    AvailableSourceTypes readable u


A bitmask of available source types. Currently defined types are:

- ``1``: MONITOR: Share existing monitors
- ``2``: WINDOW: Share application windows
- ``4``: VIRTUAL: Extend with new virtual monitor




.. _org.freedesktop.portal.ScreenCast:AvailableCursorModes:

org.freedesktop.portal.ScreenCast:AvailableCursorModes
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

::

    AvailableCursorModes readable u


A bitmask of available cursor modes.

Available cursor mode values:

- ``1``: Hidden. The cursor is not part of the screen cast stream.
- ``2``: Embedded: The cursor is embedded as part of the stream buffers.
- ``4``: Metadata: The cursor is not part of the screen cast stream, but sent as PipeWire stream metadata.

This property was added in version 2 of this interface.




.. _org.freedesktop.portal.ScreenCast:version:

org.freedesktop.portal.ScreenCast:version
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

::

    version readable u




.. _org.freedesktop.portal.ScreenCast Methods:

-------
Methods
-------

.. _org.freedesktop.portal.ScreenCast.CreateSession:

org.freedesktop.portal.ScreenCast.CreateSession
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

::

    CreateSession (
      IN options a{sv},
      OUT handle o
    )



Create a screen cast session. A successfully created session can at
any time be closed using :ref:`org.freedesktop.portal.Session.Close`, or may
at any time be closed by the portal implementation, which will be
signalled via :ref:`org.freedesktop.portal.Session::Closed`.

Supported keys in the ``options`` vardict include:

* ``handle_token`` (``s``)

  A string that will be used as the last element of the ``handle``. Must be a valid
  object path element. See the :ref:`org.freedesktop.portal.Request` documentation for
  more information about the ``handle``.

* ``session_handle_token`` (``s``)

  A string that will be used as the last element of the session handle. Must be a valid
  object path element. See the :ref:`org.freedesktop.portal.Session` documentation for
  more information about the session handle.

The following results get returned via the :ref:`org.freedesktop.portal.Request::Response` signal:

* ``session_handle`` (``s``)

  The session handle. An object path for the
  :ref:`org.freedesktop.portal.Session` object representing the created
  session.

  .. note::
    The ``session_handle`` is an object path that was erroneously implemented
    as ``s``. For backwards compatibility it will remain this type.



options
  Vardict with optional further information

handle
  Object path for the :ref:`org.freedesktop.portal.Request` object representing this call



.. _org.freedesktop.portal.ScreenCast.SelectSources:

org.freedesktop.portal.ScreenCast.SelectSources
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

::

    SelectSources (
      IN session_handle o,
      IN options a{sv},
      OUT handle o
    )



Configure what the screen cast session should record. This method must
be called before starting the session.

Passing invalid input to this method will cause the session to be
closed. An application may only attempt to select sources once per
session.

Supported keys in the ``options`` vardict include:

* ``handle_token`` (``s``)

  A string that will be used as the last element of the ``handle``. Must be a valid
  object path element. See the :ref:`org.freedesktop.portal.Request` documentation for
  more information about the ``handle``.

* ``types`` (``u``)

  Bitmask of what types of content to record. Default is MONITOR.

* ``multiple`` (``b``)

  Whether to allow selecting multiple sources. Default is no.

* ``cursor_mode`` (``u``)

  Determines how the cursor will be drawn in the screen cast stream. It must be
  one of the cursor modes advertised in
  :ref:`org.freedesktop.portal.ScreenCast:AvailableCursorModes`. Setting a cursor mode
  not advertised will cause the screen cast session to be closed. The default
  cursor mode is 'Hidden'.

  This option was added in version 2 of this interface.

* ``restore_token`` (``s``)

  The token to restore a previous session.

  If the stored session cannot be restored, this value is ignored
  and the user will be prompted normally. This may happen when, for
  example, the session contains a monitor or a window that is not
  available anymore, or when the stored permissions are withdrawn.

  The restore token is invalidated after using it once. To restore
  the same session again, use the new restore token sent in response
  to starting this session.

  Setting a restore_token is only allowed for screen cast sessions.
  Persistent remote desktop screen cast sessions can only be handled
  via the :ref:`org.freedesktop.portal.RemoteDesktop` interface.

  This option was added in version 4 of this interface.

* ``persist_mode`` (``u``)

  How this session should persist. Default is 0. Accepted values are:

  - ``0``: Do not persist (default)
  - ``1``: Permissions persist as long as the application is running
  - ``2``: Permissions persist until explicitly revoked

  Setting persist_mode is only allowed for screen cast sessions. Persistent
  remote desktop screen cast sessions can only be handled via the
  :ref:`org.freedesktop.portal.RemoteDesktop` interface.

  If the permission for the session to persist is granted, a restore token will
  be returned via the :ref:`org.freedesktop.portal.Request::Response` signal of the
  :ref:`org.freedesktop.portal.ScreenCast.Start` method.

  This option was added in version 4 of this interface.

For available source types, see the AvailableSourceTypes property.



session_handle
  Object path for the :ref:`org.freedesktop.portal.Session` object

options
  Vardict with optional further information

handle
  Object path for the :ref:`org.freedesktop.portal.Request` object representing this call



.. _org.freedesktop.portal.ScreenCast.Start:

org.freedesktop.portal.ScreenCast.Start
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

::

    Start (
      IN session_handle o,
      IN parent_window s,
      IN options a{sv},
      OUT handle o
    )



Start the screen cast session. This will typically result the portal
presenting a dialog letting the user do the selection set up by
`org.freedesktop.portal.ScreenCast.SelectSources`_. An application can
only attempt start a session once.

A screen cast session may only be started after having selected sources
using `org.freedesktop.portal.ScreenCast.SelectSources`_.

Supported keys in the ``options`` vardict include:

* ``handle_token`` (``s``)

  A string that will be used as the last element of the ``handle``. Must be a valid
  object path element. See the :ref:`org.freedesktop.portal.Request` documentation for
  more information about the ``handle``.

The following results get returned via the
:ref:`org.freedesktop.portal.Request::Response` signal:

* ``streams`` (``a(ua{sv})``)

  An array of PipeWire streams. Each stream consists of a PipeWire
  node ID (the first element in the tuple, and a Vardict of
  properties.

  The array will contain a single stream if 'multiple' (see
  `org.freedesktop.portal.ScreenCast.SelectSources`_)
  was set to 'false', or at least one stream if
  'multiple' was set to 'true' as part of the
  `org.freedesktop.portal.ScreenCast.SelectSources`_ method.

  Each stream contains the following properties:

  * ``id`` (``s``)

    Opaque identifier. Will be unique for this stream and local to this
    session. Will persist with future sessions, if they are restored
    using a restore token. This property was added in version 4 of this
    interface. Optional.

  * ``position`` (``(ii)``)

    A tuple consisting of the position (x, y) in the compositor
    coordinate space. Note that the position may not be equivalent to a
    position in a pixel coordinate space. Only available for monitor
    streams. Optional.

  * ``size`` (``(ii)``)

    A tuple consisting of (width, height). The size represents the size
    of the stream as it is displayed in the compositor coordinate
    space. Note that this size may not be equivalent to a size in a
    pixel coordinate space. The size may differ from the size of the
    stream. Optional.

  * ``source_type`` (``u``)

    The type of the content which is being screen casted.
    For available source types, see the AvailableSourceTypes property.
    This property was added in version 3 of this interface.

  * ``mapping_id`` (``s``)

    An optional identifier used to map different aspects of the
    resource this stream corresponds to.

    When used in a remote desktop session, the mapping_id can be used to
    match a libei region of absolute libei devices. There may be
    multiple absolute libei devices, and each device may have multiple
    regions, but a mapping_id will only match one of these regions per
    device.

    This property was added in version 5 of this interface.

* ``restore_token`` (``s``)

  The restore token. This token is a single use token that can later
  be used to restore a session. See
  `org.freedesktop.portal.ScreenCast.SelectSources`_ for details.

  This response option was added in version 4 of this interface.



session_handle
  Object path for the :ref:`org.freedesktop.portal.Session` object

parent_window
  Identifier for the application window, see :doc:`window-identifiers`

options
  Vardict with optional further information

handle
  Object path for the :ref:`org.freedesktop.portal.Request` object representing this call



.. _org.freedesktop.portal.ScreenCast.OpenPipeWireRemote:

org.freedesktop.portal.ScreenCast.OpenPipeWireRemote
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

::

    OpenPipeWireRemote (
      IN session_handle o,
      IN options a{sv},
      OUT fd h
    )



Open a file descriptor to the PipeWire remote where the screen cast
streams are available. The file descriptor should be used to create a
<classname>pw_core</classname> object, by using
<function>pw_context_connect_fd</function>. Only the screen cast stream
nodes will be available from this PipeWire node.



session_handle
  Object path for the :ref:`org.freedesktop.portal.Session` object

options
  Vardict with optional further information

fd
  File descriptor of an open PipeWire remote.


