al_set_sample_instance_gain3
Allegro 5 api
Usage
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#include <allegro5/allegro_audio.h> bool al_set_sample_instance_gain(ALLEGRO_SAMPLE_INSTANCE *spl, float val)
Overview
Set the playback gain of the sample instance.
Returns true on success, false on failure. Will fail if the sample instance is attached directly to a voice.