mixGetTrackFadeFrames function mixer

int mixGetTrackFadeFrames(Pointer<MixTrack> track)

Query whether a given track is fading.

This specifically checks if the track is not stopped (paused or playing), and it is fading in or out, and returns the number of frames remaining in the fade.

If fading out, the returned value will be negative. When fading in, the returned value will be positive. If not fading, this function returns zero.

On various errors (MIX_Init() was not called, the track is NULL), this returns 0, but there is no mechanism to distinguish errors from tracks that aren't fading.

\param track the track to query. \returns less than 0 if the track is fading out, greater than 0 if fading in, zero otherwise.

\threadsafety It is safe to call this function from any thread.

\since This function is available since SDL_mixer 3.0.0.

extern SDL_DECLSPEC Sint64 SDLCALL MIX_GetTrackFadeFrames(MIX_Track *track)

Implementation

int mixGetTrackFadeFrames(Pointer<MixTrack> track) {
  final mixGetTrackFadeFramesLookupFunction = _libMixer
      .lookupFunction<
        Int64 Function(Pointer<MixTrack> track),
        int Function(Pointer<MixTrack> track)
      >('MIX_GetTrackFadeFrames');
  return mixGetTrackFadeFramesLookupFunction(track);
}