DisplayChannel

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Object Hierarchy:

Description:

Content:

Properties:

• public GlScanout gl_scanout { get; }
  The last GlScanout received.
• public uint height { get; }
• public Array<DisplayMonitorConfig?> monitors { owned get; }
  Current monitors configuration.
• public uint monitors_max { get; }
  The maximum number of monitors the server or guest supports.
• public uint width { get; }

Creation methods:

• protected DisplayChannel ()

Methods:

• public void display_change_preferred_compression (int compression)
  Tells the spice server to change the preferred image compression for the this.
• public void display_change_preferred_video_codec_type (int codec_type)
  Tells the spice server to change the preferred video codec type for streaming in this.
• public void display_channel_change_preferred_compression (int compression)
  Tells the spice server to change the preferred image compression for the this.
• public void display_channel_change_preferred_video_codec_type (int codec_type)
  Tells the spice server to change the preferred video codec type for streaming in this.
• public bool display_channel_change_preferred_video_codec_types (int[] codecs) throws Error
  Tells the spice server the ordered preferred video codec types to use for streaming in this.
• public bool display_channel_get_primary (uint32 surface_id, DisplayPrimary primary)
  Retrieve primary display surface surface_id.
• public bool display_get_primary (uint32 surface_id, DisplayPrimary primary)
  Retrieve primary display surface surface_id.
• public unowned GlScanout get_gl_scanout ()
  Retrieves the GL scanout if available
• public void gl_draw_done ()
  After a SpiceDisplayChannel:SpiceDisplayChannel:gl-draw is emitted, the client should draw the current display with the current GL scanout, and must release the GL resource with a call to display_gl_draw_done (failing to do so for each gl-draw may result in a frozen display).

Signals:

• public virtual signal void display_invalidate (int x, int y, int w, int h)
  The display_invalidate signal is emitted when the rectangular region x/y/w/h of the primary buffer is updated.
• public virtual signal void display_mark (int mark)
  The display_mark signal is emitted when the red_display_mark command is received, and the display should be exposed.
• public virtual signal void display_primary_create (int format, int width, int height, int stride, int shmid, void* data)
  The display_primary_create signal provides main display buffer data.
• public virtual signal void display_primary_destroy ()
  The display_primary_destroy signal is emitted when the primary surface is freed and should not be accessed anymore.
• public signal void gl_draw (uint x, uint y, uint width, uint height)
  The gl_draw signal is emitted when the rectangular region x/y/w/h of the GL scanout is updated and must be drawn.
• public signal bool gst_video_overlay (Pipeline pipeline)
  The gst_video_overlay signal is emitted when pipeline is ready and can be passed to widget to register GStreamer overlay interface and other GStreamer callbacks.
• public signal void* streaming_mode (bool streaming_mode)

Inherited Members: