DEFINITION MODULE FOR "C" GdkFrameClock ;

(*
   m2-GTK4 - GdkFrameClock: a clock that drives frame updates for a
   surface.  Mapped onto <gdk/gdkframeclock.h>.

   Obtain one from a surface with gdk_surface_get_frame_clock().
*)

FROM SYSTEM IMPORT ADDRESS;

EXPORT UNQUALIFIED
   GdkFrameClock,
   gdk_frame_clock_begin_updating,
   gdk_frame_clock_end_updating,
   gdk_frame_clock_get_current_timings,
   gdk_frame_clock_get_fps,
   gdk_frame_clock_get_frame_counter,
   gdk_frame_clock_get_frame_time,
   gdk_frame_clock_get_history_start,
   gdk_frame_clock_get_refresh_info,
   gdk_frame_clock_get_timings,
   gdk_frame_clock_request_phase;


TYPE
   GdkFrameClock = ADDRESS;

(* void gdk_frame_clock_begin_updating(GdkFrameClock *frame_clock) *)
PROCEDURE gdk_frame_clock_begin_updating (frame_clock: GdkFrameClock);

(* void gdk_frame_clock_end_updating(GdkFrameClock *frame_clock) *)
PROCEDURE gdk_frame_clock_end_updating (frame_clock: GdkFrameClock);

(* GdkFrameTimings *gdk_frame_clock_get_current_timings(GdkFrameClock *frame_clock) *)
PROCEDURE gdk_frame_clock_get_current_timings (frame_clock: GdkFrameClock) : ADDRESS;

(* double gdk_frame_clock_get_fps(GdkFrameClock *frame_clock) *)
PROCEDURE gdk_frame_clock_get_fps (frame_clock: GdkFrameClock) : REAL;

(* gint64 gdk_frame_clock_get_frame_counter(GdkFrameClock *frame_clock) *)
PROCEDURE gdk_frame_clock_get_frame_counter (frame_clock: GdkFrameClock) : LONGINT;

(* gint64 gdk_frame_clock_get_frame_time(GdkFrameClock *frame_clock) *)
PROCEDURE gdk_frame_clock_get_frame_time (frame_clock: GdkFrameClock) : LONGINT;

(* gint64 gdk_frame_clock_get_history_start(GdkFrameClock *frame_clock) *)
PROCEDURE gdk_frame_clock_get_history_start (frame_clock: GdkFrameClock) : LONGINT;

(* void gdk_frame_clock_get_refresh_info(GdkFrameClock *frame_clock, gint64 base_time, gint64 *refresh_interval_return, gint64 *presentation_time_return) *)
PROCEDURE gdk_frame_clock_get_refresh_info (frame_clock: GdkFrameClock; base_time: LONGINT; VAR refresh_interval_return: LONGINT; VAR presentation_time_return: LONGINT);

(* GdkFrameTimings *gdk_frame_clock_get_timings(GdkFrameClock *frame_clock, gint64 frame_counter) *)
PROCEDURE gdk_frame_clock_get_timings (frame_clock: GdkFrameClock; frame_counter: LONGINT) : ADDRESS;

(* void gdk_frame_clock_request_phase(GdkFrameClock *frame_clock, GdkFrameClockPhase phase) *)
PROCEDURE gdk_frame_clock_request_phase (frame_clock: GdkFrameClock; phase: CARDINAL);

END GdkFrameClock.