NAME¶

Mix_VolumeChunk - Set the volume for a specific chunk.

SYNOPSIS¶

#include "SDL3_mixer/SDL_mixer.h"

int Mix_VolumeChunk(Mix_Chunk *chunk, int volume);

DESCRIPTION¶

In addition to channels having a volume setting, individual chunks also maintain a separate volume. Both values are considered when mixing, so both affect the final attenuation of the sound. This lets an app adjust the volume for all instances of a sound in addition to specific instances of that sound.

The volume must be between 0 (silence) and MIX_MAX_VOLUME

(full volume). Note that MIX_MAX_VOLUME
is 128. Values greater than MIX_MAX_VOLUME
are clamped to

MIX_MAX_VOLUME .

Specifying a negative volume will not change the current volume; as such, this can be used to query the current volume without making changes, as this function returns the previous (in this case, still-current) value.

The default volume for a chunk is MIX_MAX_VOLUME
(no attenuation).

FUNCTION PARAMETERS¶

chunk

the chunk whose volume to adjust.

volume

the new volume, between 0 and MIX_MAX_VOLUME , or -1 to query.

RETURN VALUE¶

Returns the previous volume. If the specified volume is -1, this returns the current volume. If chunk is NULL, this returns -1.

AVAILABILITY¶

This function is available since SDL_mixer 3.0.0.