Reurns the presentation time.
This is the time at which the frame became visible to the user.
the time the frame was displayed to the user, in the timescale of g_get_monotonic_time(), or 0 if no presentation time is available. See [method@Gdk.FrameTimings.get_complete]
See Implementation
Reurns the presentation time.
This is the time at which the frame became visible to the user.