ui/dbus-display1.xml

   1 <?xml version="1.0" encoding="utf-8"?>
   2 <node>
   3   <!--
   4       org.qemu.Display1.VM:
   5
   6       This interface is implemented on ``/org/qemu/Display1/VM``.
   7   -->
   8   <interface name="org.qemu.Display1.VM">
   9     <!--
  10         Name:
  11
  12         The name of the VM.
  13     -->
  14     <property name="Name" type="s" access="read"/>
  15
  16     <!--
  17         UUID:
  18
  19         The UUID of the VM.
  20     -->
  21     <property name="UUID" type="s" access="read"/>
  22
  23     <!--
  24         ConsoleIDs:
  25
  26         The list of consoles available on ``/org/qemu/Display1/Console_$id``.
  27     -->
  28     <property name="ConsoleIDs" type="au" access="read"/>
  29
  30     <!--
  31         Interfaces:
  32
  33         This property lists extra interfaces provided by the
  34         /org/qemu/Display1/VM object, and can be used to detect
  35         the capabilities with which they are communicating.
  36
  37         Unlike the standard D-Bus Introspectable interface, querying this
  38         property does not require parsing XML.
  39
  40         (earlier version of the display interface do not provide this property)
  41     -->
  42     <property name="Interfaces" type="as" access="read"/>
  43   </interface>
  44
  45   <!--
  46       org.qemu.Display1.Console:
  47
  48       This interface is implemented on ``/org/qemu/Display1/Console_$id``. You
  49       may discover available consoles through introspection or with the
  50       :dbus:prop:`org.qemu.Display1.VM.ConsoleIDs` property.
  51
  52       A console is attached to a video device head. It may be "Graphic" or
  53       "Text" (see :dbus:prop:`Type` and other properties).
  54
  55       Interactions with a console may be done with
  56       :dbus:iface:`org.qemu.Display1.Keyboard`,
  57       :dbus:iface:`org.qemu.Display1.Mouse` and
  58       :dbus:iface:`org.qemu.Display1.MultiTouch` interfaces when available.
  59   -->
  60   <interface name="org.qemu.Display1.Console">
  61     <!--
  62         RegisterListener:
  63         @listener: a Unix socket FD, for peer-to-peer D-Bus communication.
  64
  65         Register a console listener, which will receive display updates, until
  66         it is disconnected.
  67
  68         Multiple listeners may be registered simultaneously.
  69
  70         The listener is expected to implement the
  71         :dbus:iface:`org.qemu.Display1.Listener` interface.
  72     -->
  73     <method name="RegisterListener">
  74       <?if $(env.TARGETOS) == windows?>
  75       <arg type="ay" name="listener" direction="in">
  76         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
  77       </arg>
  78       <?else?>
  79       <arg type="h" name="listener" direction="in"/>
  80       <?endif?>
  81     </method>
  82
  83     <!--
  84         SetUIInfo:
  85         @width_mm: the physical display width in millimeters.
  86         @height_mm: the physical display height in millimeters.
  87         @xoff: horizontal offset, in pixels.
  88         @yoff: vertical offset, in pixels.
  89         @width: console width, in pixels.
  90         @height: console height, in pixels.
  91
  92         Modify the dimensions and display settings.
  93     -->
  94     <method name="SetUIInfo">
  95       <arg name="width_mm" type="q" direction="in"/>
  96       <arg name="height_mm" type="q" direction="in"/>
  97       <arg name="xoff" type="i" direction="in"/>
  98       <arg name="yoff" type="i" direction="in"/>
  99       <arg name="width" type="u" direction="in"/>
 100       <arg name="height" type="u" direction="in"/>
 101     </method>
 102
 103     <!--
 104         Label:
 105
 106         A user-friendly name for the console (for ex: "VGA").
 107     -->
 108     <property name="Label" type="s" access="read"/>
 109
 110     <!--
 111         Head:
 112
 113         Graphical device head number.
 114     -->
 115     <property name="Head" type="u" access="read"/>
 116
 117     <!--
 118         Type:
 119
 120         Console type ("Graphic" or "Text").
 121     -->
 122     <property name="Type" type="s" access="read"/>
 123
 124     <!--
 125         Width:
 126
 127         Console width, in pixels.
 128     -->
 129     <property name="Width" type="u" access="read"/>
 130
 131     <!--
 132         Height:
 133
 134         Console height, in pixels.
 135     -->
 136     <property name="Height" type="u" access="read"/>
 137
 138     <!--
 139         DeviceAddress:
 140
 141         The device address (ex: "pci/0000/02.0").
 142     -->
 143     <property name="DeviceAddress" type="s" access="read"/>
 144
 145     <!--
 146         Interfaces:
 147
 148         This property lists extra interfaces provided by the
 149         ``/org/qemu/Display1/Console_$id`` object, and can be used to detect the
 150         capabilities with which they are communicating.
 151
 152         Unlike the standard D-Bus Introspectable interface, querying this
 153         property does not require parsing XML.
 154
 155         (earlier version of the display interface do not provide this property)
 156     -->
 157     <property name="Interfaces" type="as" access="read"/>
 158   </interface>
 159
 160   <!--
 161       org.qemu.Display1.Keyboard:
 162
 163       This interface is optionally implemented on
 164       ``/org/qemu/Display1/Console_$id`` (see
 165       :dbus:iface:`~org.qemu.Display1.Console`).
 166   -->
 167   <interface name="org.qemu.Display1.Keyboard">
 168     <!--
 169         Press:
 170         @keycode: QEMU key number (xtkbd + special re-encoding of high bit)
 171
 172         Send a key press event.
 173     -->
 174     <method name="Press">
 175       <arg type="u" name="keycode" direction="in"/>
 176     </method>
 177
 178     <!--
 179         Release:
 180         @keycode: QEMU key number (xtkbd + special re-encoding of high bit)
 181
 182         Send a key release event.
 183     -->
 184     <method name="Release">
 185       <arg type="u" name="keycode" direction="in"/>
 186     </method>
 187
 188     <!--
 189         Modifiers:
 190
 191         The active keyboard modifiers::
 192
 193           Scroll = 1 << 0
 194           Num    = 1 << 1
 195           Caps   = 1 << 2
 196     -->
 197     <property name="Modifiers" type="u" access="read"/>
 198   </interface>
 199
 200   <!--
 201       org.qemu.Display1.Mouse:
 202
 203       This interface is optionally implemented on
 204       ``/org/qemu/Display1/Console_$id`` (see
 205       :dbus:iface:`~org.qemu.Display1.Console` documentation).
 206
 207       .. _dbus-button-values:
 208
 209       **Button values**::
 210
 211         Left       = 0
 212         Middle     = 1
 213         Right      = 2
 214         Wheel-up   = 3
 215         Wheel-down = 4
 216         Side       = 5
 217         Extra      = 6
 218   -->
 219   <interface name="org.qemu.Display1.Mouse">
 220     <!--
 221         Press:
 222         @button: :ref:`button value<dbus-button-values>`.
 223
 224         Send a mouse button press event.
 225     -->
 226     <method name="Press">
 227       <arg type="u" name="button" direction="in"/>
 228     </method>
 229
 230     <!--
 231         Release:
 232         @button: :ref:`button value<dbus-button-values>`.
 233
 234         Send a mouse button release event.
 235     -->
 236     <method name="Release">
 237       <arg type="u" name="button" direction="in"/>
 238     </method>
 239
 240     <!--
 241         SetAbsPosition:
 242         @x: X position, in pixels.
 243         @y: Y position, in pixels.
 244
 245         Set the mouse pointer position.
 246
 247         Returns an error if not :dbus:prop:`IsAbsolute`.
 248     -->
 249     <method name="SetAbsPosition">
 250       <arg type="u" name="x" direction="in"/>
 251       <arg type="u" name="y" direction="in"/>
 252     </method>
 253
 254     <!--
 255         RelMotion:
 256         @dx: X-delta, in pixels.
 257         @dy: Y-delta, in pixels.
 258
 259         Move the mouse pointer position, relative to the current position.
 260
 261         Returns an error if :dbus:prop:`IsAbsolute`.
 262     -->
 263     <method name="RelMotion">
 264       <arg type="i" name="dx" direction="in"/>
 265       <arg type="i" name="dy" direction="in"/>
 266     </method>
 267
 268     <!--
 269         IsAbsolute:
 270
 271         Whether the mouse is using absolute movements.
 272     -->
 273     <property name="IsAbsolute" type="b" access="read"/>
 274   </interface>
 275
 276   <!--
 277       org.qemu.Display1.MultiTouch:
 278
 279       This interface in implemented on ``/org/qemu/Display1/Console_$id`` (see
 280       :dbus:iface:`~org.qemu.Display1.Console` documentation).
 281
 282       .. _dbus-kind-values:
 283
 284       **Kind values**::
 285
 286         Begin       = 0
 287         Update      = 1
 288         End         = 2
 289         Cancel      = 3
 290   -->
 291   <interface name="org.qemu.Display1.MultiTouch">
 292     <!--
 293         SendEvent:
 294         @kind: The touch event kind
 295         @num_slot: The slot number.
 296         @x: The x coordinates.
 297         @y: The y coordinates.
 298
 299         Send a touch gesture event.
 300     -->
 301     <method name="SendEvent">
 302       <arg type="u" name="kind" direction="in"/>
 303       <arg type="t" name="num_slot" direction="in"/>
 304       <arg type="d" name="x" direction="in"/>
 305       <arg type="d" name="y" direction="in"/>
 306     </method>
 307
 308     <!--
 309         MaxSlots:
 310
 311         The maximum number of slots.
 312     -->
 313     <property name="MaxSlots" type="i" access="read"/>
 314   </interface>
 315
 316   <!--
 317       org.qemu.Display1.Listener:
 318
 319       This client-side interface must be available on
 320       ``/org/qemu/Display1/Listener`` when registering the peer-to-peer
 321       connection with :dbus:meth:`~org.qemu.Display1.Console.Register`.
 322   -->
 323   <interface name="org.qemu.Display1.Listener">
 324     <!--
 325         Scanout:
 326         @width: display width, in pixels.
 327         @height: display height, in pixels.
 328         @stride: data stride, in bytes.
 329         @pixman_format: image format (ex: ``PIXMAN_X8R8G8B8``).
 330         @data: image data.
 331
 332         Resize and update the display content.
 333
 334         The data to transfer for the display update may be large. The preferred
 335         scanout method is :dbus:meth:`ScanoutDMABUF`, used whenever possible.
 336     -->
 337     <method name="Scanout">
 338       <arg type="u" name="width" direction="in"/>
 339       <arg type="u" name="height" direction="in"/>
 340       <arg type="u" name="stride" direction="in"/>
 341       <arg type="u" name="pixman_format" direction="in"/>
 342       <arg type="ay" name="data" direction="in">
 343         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
 344       </arg>
 345     </method>
 346
 347     <!--
 348         Update:
 349         @x: X update position, in pixels.
 350         @y: Y update position, in pixels.
 351         @width: update width, in pixels.
 352         @height: update height, in pixels.
 353         @stride: data stride, in bytes.
 354         @pixman_format: image format (ex: ``PIXMAN_X8R8G8B8``).
 355         @data: display image data.
 356
 357         Update the display content.
 358
 359         This method is only called after a :dbus:meth:`Scanout` call.
 360     -->
 361     <method name="Update">
 362       <arg type="i" name="x" direction="in"/>
 363       <arg type="i" name="y" direction="in"/>
 364       <arg type="i" name="width" direction="in"/>
 365       <arg type="i" name="height" direction="in"/>
 366       <arg type="u" name="stride" direction="in"/>
 367       <arg type="u" name="pixman_format" direction="in"/>
 368       <arg type="ay" name="data" direction="in">
 369         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
 370       </arg>
 371     </method>
 372
 373     <?if $(env.TARGETOS) == windows?>
 374     <!-- Add shared memory/texture support -->
 375     <?else?>
 376     <!--
 377         ScanoutDMABUF:
 378         @dmabuf: the DMABUF file descriptor.
 379         @width: display width, in pixels.
 380         @height: display height, in pixels.
 381         @stride: stride, in bytes.
 382         @fourcc: DMABUF fourcc.
 383         @modifier: DMABUF modifier.
 384         @y0_top: whether Y position 0 is the top or not.
 385
 386         Resize and update the display content with a DMABUF.
 387     -->
 388     <method name="ScanoutDMABUF">
 389       <arg type="h" name="dmabuf" direction="in"/>
 390       <arg type="u" name="width" direction="in"/>
 391       <arg type="u" name="height" direction="in"/>
 392       <arg type="u" name="stride" direction="in"/>
 393       <arg type="u" name="fourcc" direction="in"/>
 394       <!-- xywh? -->
 395       <arg type="t" name="modifier" direction="in"/>
 396       <arg type="b" name="y0_top" direction="in"/>
 397     </method>
 398
 399     <!--
 400         UpdateDMABUF:
 401         @x: the X update position, in pixels.
 402         @y: the Y update position, in pixels.
 403         @width: the update width, in pixels.
 404         @height: the update height, in pixels.
 405
 406         Update the display content with the current DMABUF and the given region.
 407     -->
 408     <method name="UpdateDMABUF">
 409       <arg type="i" name="x" direction="in"/>
 410       <arg type="i" name="y" direction="in"/>
 411       <arg type="i" name="width" direction="in"/>
 412       <arg type="i" name="height" direction="in"/>
 413     </method>
 414     <?endif?>
 415
 416     <!--
 417         Disable:
 418
 419         Disable the display (turn it off).
 420     -->
 421     <method name="Disable">
 422     </method>
 423
 424     <!--
 425         MouseSet:
 426         @x: X mouse position, in pixels.
 427         @y: Y mouse position, in pixels.
 428         @on: whether the mouse is visible or not.
 429
 430         Set the mouse position and visibility.
 431     -->
 432     <method name="MouseSet">
 433       <arg type="i" name="x" direction="in"/>
 434       <arg type="i" name="y" direction="in"/>
 435       <arg type="i" name="on" direction="in"/>
 436     </method>
 437
 438     <!--
 439         CursorDefine:
 440         @width: cursor width, in pixels.
 441         @height: cursor height, in pixels.
 442         @hot_x: hot-spot X position, in pixels.
 443         @hot_y: hot-spot Y position, in pixels.
 444         @data: the cursor data.
 445
 446         Set the mouse cursor shape and hot-spot. The "data" must be ARGB, 32-bit
 447         per pixel.
 448     -->
 449     <method name="CursorDefine">
 450       <arg type="i" name="width" direction="in"/>
 451       <arg type="i" name="height" direction="in"/>
 452       <arg type="i" name="hot_x" direction="in"/>
 453       <arg type="i" name="hot_y" direction="in"/>
 454       <arg type="ay" name="data" direction="in">
 455         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
 456       </arg>
 457     </method>
 458
 459     <!--
 460         Interfaces:
 461
 462         This property lists extra interfaces provided by the
 463         /org/qemu/Display1/Listener object, and can be used to detect
 464         the capabilities with which they are communicating.
 465
 466         Unlike the standard D-Bus Introspectable interface, querying this
 467         property does not require parsing XML.
 468
 469         (earlier version of the display interface do not provide this property)
 470     -->
 471     <property name="Interfaces" type="as" access="read"/>
 472   </interface>
 473
 474   <!--
 475       org.qemu.Display1.Clipboard:
 476
 477       This interface must be implemented by both the client and the server on
 478       ``/org/qemu/Display1/Clipboard`` to support clipboard sharing between
 479       the client and the guest.
 480
 481       Once :dbus:meth:`Register`'ed, method calls may be sent and received in both
 482       directions. Unregistered callers will get error replies.
 483
 484       .. _dbus-clipboard-selection:
 485
 486       **Selection values**::
 487
 488         Clipboard   = 0
 489         Primary     = 1
 490         Secondary   = 2
 491
 492       .. _dbus-clipboard-serial:
 493
 494       **Serial counter**
 495
 496       To solve potential clipboard races, clipboard grabs have an associated
 497       serial counter. It is set to 0 on registration, and incremented by 1 for
 498       each grab. The peer with the highest serial is the clipboard grab owner.
 499
 500       When a grab with a lower serial is received, it should be discarded.
 501
 502       When a grab is attempted with the same serial number as the current grab,
 503       the one coming from the client should have higher priority, and the client
 504       should gain clipboard grab ownership.
 505   -->
 506   <interface name="org.qemu.Display1.Clipboard">
 507     <!--
 508         Register:
 509
 510         Register a clipboard session and reinitialize the serial counter.
 511
 512         The client must register itself, and is granted an exclusive
 513         access for handling the clipboard.
 514
 515         The server can reinitialize the session as well (to reset the counter).
 516     -->
 517     <method name="Register"/>
 518
 519     <!--
 520         Unregister:
 521
 522         Unregister the clipboard session.
 523     -->
 524     <method name="Unregister"/>
 525     <!--
 526         Grab:
 527         @selection: a :ref:`selection value<dbus-clipboard-selection>`.
 528         @serial: the current grab :ref:`serial<dbus-clipboard-serial>`.
 529         @mimes: the list of available content MIME types.
 530
 531         Grab the clipboard, claiming current clipboard content.
 532     -->
 533     <method name="Grab">
 534       <arg type="u" name="selection"/>
 535       <arg type="u" name="serial"/>
 536       <arg type="as" name="mimes"/>
 537     </method>
 538
 539     <!--
 540         Release:
 541         @selection: a :ref:`selection value<dbus-clipboard-selection>`.
 542
 543         Release the clipboard (does nothing if not the current owner).
 544     -->
 545     <method name="Release">
 546       <arg type="u" name="selection"/>
 547     </method>
 548
 549     <!--
 550         Request:
 551         @selection: a :ref:`selection value<dbus-clipboard-selection>`
 552         @mimes: requested MIME types (by order of preference).
 553         @reply_mime: the returned data MIME type.
 554         @data: the clipboard data.
 555
 556         Request the clipboard content.
 557
 558         Return an error if the clipboard is empty, or the requested MIME types
 559         are unavailable.
 560     -->
 561     <method name="Request">
 562       <arg type="u" name="selection"/>
 563       <arg type="as" name="mimes"/>
 564       <arg type="s" name="reply_mime" direction="out"/>
 565       <arg type="ay" name="data" direction="out">
 566         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
 567       </arg>
 568     </method>
 569
 570     <!--
 571         Interfaces:
 572
 573         This property lists extra interfaces provided by the
 574         /org/qemu/Display1/Clipboard object, and can be used to detect
 575         the capabilities with which they are communicating.
 576
 577         Unlike the standard D-Bus Introspectable interface, querying this
 578         property does not require parsing XML.
 579
 580         (earlier version of the display interface do not provide this property)
 581     -->
 582     <property name="Interfaces" type="as" access="read"/>
 583   </interface>
 584
 585   <!--
 586       org.qemu.Display1.Audio:
 587
 588       Audio backend may be available on ``/org/qemu/Display1/Audio``.
 589   -->
 590   <interface name="org.qemu.Display1.Audio">
 591     <!--
 592         RegisterOutListener:
 593         @listener: a Unix socket FD, for peer-to-peer D-Bus communication.
 594
 595         Register an audio backend playback handler.
 596
 597         Multiple listeners may be registered simultaneously.
 598
 599         The listener is expected to implement the
 600         :dbus:iface:`org.qemu.Display1.AudioOutListener` interface.
 601     -->
 602     <method name="RegisterOutListener">
 603       <?if $(env.TARGETOS) == windows?>
 604       <arg type="ay" name="listener" direction="in">
 605         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
 606       </arg>
 607       <?else?>
 608       <arg type="h" name="listener" direction="in"/>
 609       <?endif?>
 610     </method>
 611
 612     <!--
 613         RegisterInListener:
 614         @listener: a Unix socket FD, for peer-to-peer D-Bus communication.
 615
 616         Register an audio backend record handler.
 617
 618         Multiple listeners may be registered simultaneously.
 619
 620         The listener is expected to implement the
 621         :dbus:iface:`org.qemu.Display1.AudioInListener` interface.
 622     -->
 623     <method name="RegisterInListener">
 624       <?if $(env.TARGETOS) == windows?>
 625       <arg type="ay" name="listener" direction="in">
 626         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
 627       </arg>
 628       <?else?>
 629       <arg type="h" name="listener" direction="in"/>
 630       <?endif?>
 631     </method>
 632
 633     <!--
 634         Interfaces:
 635
 636         This property lists extra interfaces provided by the
 637         /org/qemu/Display1/Audio object, and can be used to detect
 638         the capabilities with which they are communicating.
 639
 640         Unlike the standard D-Bus Introspectable interface, querying this
 641         property does not require parsing XML.
 642
 643         (earlier version of the display interface do not provide this property)
 644     -->
 645     <property name="Interfaces" type="as" access="read"/>
 646   </interface>
 647
 648   <!--
 649       org.qemu.Display1.AudioOutListener:
 650
 651       This client-side interface must be available on
 652       ``/org/qemu/Display1/AudioOutListener`` when registering the peer-to-peer
 653       connection with :dbus:meth:`~org.qemu.Display1.Audio.RegisterOutListener`.
 654   -->
 655   <interface name="org.qemu.Display1.AudioOutListener">
 656     <!--
 657         Init:
 658         @id: the stream ID.
 659         @bits: PCM bits per sample.
 660         @is_signed: whether the PCM data is signed.
 661         @is_float: PCM floating point format.
 662         @freq: the PCM frequency in Hz.
 663         @nchannels: the number of channels.
 664         @bytes_per_frame: the bytes per frame.
 665         @bytes_per_second: the bytes per second.
 666         @be: whether using big-endian format.
 667
 668         Initializes a PCM playback stream.
 669     -->
 670     <method name="Init">
 671       <arg name="id" type="t" direction="in"/>
 672       <arg name="bits" type="y" direction="in"/>
 673       <arg name="is_signed" type="b" direction="in"/>
 674       <arg name="is_float" type="b" direction="in"/>
 675       <arg name="freq" type="u" direction="in"/>
 676       <arg name="nchannels" type="y" direction="in"/>
 677       <arg name="bytes_per_frame" type="u" direction="in"/>
 678       <arg name="bytes_per_second" type="u" direction="in"/>
 679       <arg name="be" type="b" direction="in"/>
 680     </method>
 681
 682     <!--
 683         Fini:
 684         @id: the stream ID.
 685
 686         Finish & close a playback stream.
 687     -->
 688     <method name="Fini">
 689       <arg name="id" type="t" direction="in"/>
 690     </method>
 691
 692     <!--
 693         SetEnabled:
 694         @id: the stream ID.
 695
 696         Resume or suspend the playback stream.
 697     -->
 698     <method name="SetEnabled">
 699       <arg name="id" type="t" direction="in"/>
 700       <arg name="enabled" type="b" direction="in"/>
 701     </method>
 702
 703     <!--
 704         SetVolume:
 705         @id: the stream ID.
 706         @mute: whether the stream is muted.
 707         @volume: the volume per-channel.
 708
 709         Set the stream volume and mute state (volume without unit, 0-255).
 710     -->
 711     <method name="SetVolume">
 712       <arg name="id" type="t" direction="in"/>
 713       <arg name="mute" type="b" direction="in"/>
 714       <arg name="volume" type="ay" direction="in">
 715         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
 716       </arg>
 717     </method>
 718
 719     <!--
 720         Write:
 721         @id: the stream ID.
 722         @data: the PCM data.
 723
 724         PCM stream to play.
 725     -->
 726     <method name="Write">
 727       <arg name="id" type="t" direction="in"/>
 728       <arg type="ay" name="data" direction="in">
 729         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
 730       </arg>
 731     </method>
 732
 733     <!--
 734         Interfaces:
 735
 736         This property lists extra interfaces provided by the
 737         /org/qemu/Display1/AudioOutListener object, and can be used to detect
 738         the capabilities with which they are communicating.
 739
 740         Unlike the standard D-Bus Introspectable interface, querying this
 741         property does not require parsing XML.
 742
 743         (earlier version of the display interface do not provide this property)
 744     -->
 745     <property name="Interfaces" type="as" access="read"/>
 746   </interface>
 747
 748   <!--
 749       org.qemu.Display1.AudioInListener:
 750
 751       This client-side interface must be available on
 752       ``/org/qemu/Display1/AudioInListener`` when registering the peer-to-peer
 753       connection with :dbus:meth:`~org.qemu.Display1.Audio.RegisterInListener`.
 754   -->
 755   <interface name="org.qemu.Display1.AudioInListener">
 756     <!--
 757         Init:
 758         @id: the stream ID.
 759         @bits: PCM bits per sample.
 760         @is_signed: whether the PCM data is signed.
 761         @is_float: PCM floating point format.
 762         @freq: the PCM frequency in Hz.
 763         @nchannels: the number of channels.
 764         @bytes_per_frame: the bytes per frame.
 765         @bytes_per_second: the bytes per second.
 766         @be: whether using big-endian format.
 767
 768         Initializes a PCM record stream.
 769     -->
 770     <method name="Init">
 771       <arg name="id" type="t" direction="in"/>
 772       <arg name="bits" type="y" direction="in"/>
 773       <arg name="is_signed" type="b" direction="in"/>
 774       <arg name="is_float" type="b" direction="in"/>
 775       <arg name="freq" type="u" direction="in"/>
 776       <arg name="nchannels" type="y" direction="in"/>
 777       <arg name="bytes_per_frame" type="u" direction="in"/>
 778       <arg name="bytes_per_second" type="u" direction="in"/>
 779       <arg name="be" type="b" direction="in"/>
 780     </method>
 781
 782     <!--
 783         Fini:
 784         @id: the stream ID.
 785
 786         Finish & close a record stream.
 787     -->
 788     <method name="Fini">
 789       <arg name="id" type="t" direction="in"/>
 790     </method>
 791
 792     <!--
 793         SetEnabled:
 794         @id: the stream ID.
 795
 796         Resume or suspend the record stream.
 797     -->
 798     <method name="SetEnabled">
 799       <arg name="id" type="t" direction="in"/>
 800       <arg name="enabled" type="b" direction="in"/>
 801     </method>
 802
 803     <!--
 804         SetVolume:
 805         @id: the stream ID.
 806         @mute: whether the stream is muted.
 807         @volume: the volume per-channel.
 808
 809         Set the stream volume and mute state (volume without unit, 0-255).
 810     -->
 811     <method name="SetVolume">
 812       <arg name="id" type="t" direction="in"/>
 813       <arg name="mute" type="b" direction="in"/>
 814       <arg name="volume" type="ay" direction="in">
 815         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
 816       </arg>
 817     </method>
 818
 819     <!--
 820         Read:
 821         @id: the stream ID.
 822         @size: the amount to read, in bytes.
 823         @data: the recorded data (which may be less than requested).
 824
 825         Read "size" bytes from the record stream.
 826     -->
 827     <method name="Read">
 828       <arg name="id" type="t" direction="in"/>
 829       <arg name="size" type="t" direction="in"/>
 830       <arg type="ay" name="data" direction="out">
 831         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
 832       </arg>
 833     </method>
 834
 835     <!--
 836         Interfaces:
 837
 838         This property lists extra interfaces provided by the
 839         /org/qemu/Display1/AudioInListener object, and can be used to detect
 840         the capabilities with which they are communicating.
 841
 842         Unlike the standard D-Bus Introspectable interface, querying this
 843         property does not require parsing XML.
 844
 845         (earlier version of the display interface do not provide this property)
 846     -->
 847     <property name="Interfaces" type="as" access="read"/>
 848   </interface>
 849
 850   <!--
 851       org.qemu.Display1.Chardev:
 852
 853       Character devices may be available on ``/org/qemu/Display1/Chardev_$id``.
 854
 855       They may be used for different kind of streams, which are identified via
 856       their FQDN :dbus:prop:`Name`.
 857
 858       .. _dbus-chardev-fqdn:
 859
 860       Here are some known reserved kind names (the ``org.qemu`` prefix is
 861       reserved by QEMU):
 862
 863       org.qemu.console.serial.0
 864         A serial console stream.
 865
 866       org.qemu.monitor.hmp.0
 867         A QEMU HMP human monitor.
 868
 869       org.qemu.monitor.qmp.0
 870         A QEMU QMP monitor.
 871
 872       org.qemu.usbredir
 873         A usbredir stream.
 874   -->
 875   <interface name="org.qemu.Display1.Chardev">
 876     <!--
 877         Register:
 878         @stream: a Unix FD to redirect the stream to.
 879
 880         Register a file-descriptor for the stream handling.
 881
 882         The current handler, if any, will be replaced.
 883     -->
 884     <method name="Register">
 885       <?if $(env.TARGETOS) == windows?>
 886       <arg type="ay" name="listener" direction="in">
 887         <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
 888       </arg>
 889       <?else?>
 890       <arg type="h" name="stream" direction="in"/>
 891       <?endif?>
 892     </method>
 893
 894     <!--
 895         SendBreak:
 896
 897         Send a break event to the character device.
 898     -->
 899     <method name="SendBreak"/>
 900
 901     <!--
 902         Name:
 903
 904         The FQDN name to identify the kind of stream. See :ref:`reserved
 905         names<dbus-chardev-fqdn>`.
 906     -->
 907     <property name="Name" type="s" access="read"/>
 908
 909     <!--
 910         FEOpened:
 911
 912         Whether the front-end side is opened.
 913     -->
 914     <property name="FEOpened" type="b" access="read"/>
 915
 916     <!--
 917         Echo:
 918
 919         Whether the input should be echo'ed (for serial streams).
 920     -->
 921     <property name="Echo" type="b" access="read"/>
 922
 923     <!--
 924         Owner:
 925
 926         The D-Bus unique name of the registered handler.
 927     -->
 928     <property name="Owner" type="s" access="read"/>
 929
 930     <!--
 931         Interfaces:
 932
 933         This property lists extra interfaces provided by the
 934         ``/org/qemu/Display1/Chardev_$i`` object, and can be used to detect
 935         the capabilities with which they are communicating.
 936
 937         Unlike the standard D-Bus Introspectable interface, querying this
 938         property does not require parsing XML.
 939
 940         (earlier version of the display interface do not provide this property)
 941     -->
 942     <property name="Interfaces" type="as" access="read"/>
 943   </interface>
 944 </node>