NAME¶

Mix_MasterVolume - Set the master volume for all channels.

SYNOPSIS¶

#include "SDL3_mixer/SDL_mixer.h"

int Mix_MasterVolume(int volume);

DESCRIPTION¶

SDL_mixer keeps a per-channel volume, a per-chunk volume, and a master volume, and considers all three when mixing audio. This function sets the master volume, which is applied to all playing channels when mixing.

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.

Note that the master volume does not affect any playing music; it is only applied when mixing chunks. Use Mix_VolumeMusic () for that.

FUNCTION PARAMETERS¶

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.

AVAILABILITY¶

This function is available since SDL_mixer 3.0.0.