mixSetTrackGain function mixer

bool mixSetTrackGain(Pointer<MixTrack> track, double gain)

Set a track's gain control.

Each track has its own gain, to adjust its overall volume. Each sample from this track is modulated by this gain value. A gain of zero will generate silence, 1.0f will not change the mixed volume, and larger than 1.0f will increase the volume. Negative values are illegal. There is no maximum gain specified, but this can quickly get extremely loud, so please be careful with this setting.

A track's gain defaults to 1.0f.

This value can be changed at any time to adjust the future mix.

\param track the track to adjust. \param gain the new gain value. \returns true on success or false on failure; call SDL_GetError() for more information.

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

\since This function is available since SDL_mixer 3.0.0.

\sa MIX_GetTrackGain \sa MIX_SetMasterGain

extern SDL_DECLSPEC bool SDLCALL MIX_SetTrackGain(MIX_Track *track, float gain)

Implementation

bool mixSetTrackGain(Pointer<MixTrack> track, double gain) {
  final mixSetTrackGainLookupFunction = _libMixer
      .lookupFunction<
        Uint8 Function(Pointer<MixTrack> track, Float gain),
        int Function(Pointer<MixTrack> track, double gain)
      >('MIX_SetTrackGain');
  return mixSetTrackGainLookupFunction(track, gain) == 1;
}