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ActiveTcl User Guide |
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NAME
Snack_GetSample, Snack_SetSample - macros to set/get sample values
of Snack sound objects
SYNOPSIS
#include <snack.h>
Snack_GetSample(sound, channel, index)
Snack_SetSample(sound, channel, index, value)
ARGUMENTS
Sound *sound (in)
A pointer to a sound object to query or modify
int channel (in)
A positive index selecting a channel. 0 = left,
1 = right.
int index (in)
A positive index pointing to a sound sample
float value (in)
The sample value as a float.
DESCRIPTION
The following functions are implemented as macros for performance
reasons. Snack_GetSample returns the sample value at
index of channel. Snack_SetSample sets the
sample at index of channel to value. No check
is made that index, channel or value are valid
values. These functions work only with memory resident sounds
(SOUND_IN_MEMORY ). Block transfers can be accomplished more
efficiently using the functions Snack_PutSoundData and
Snack_GetSoundData.