NAME
whichchan - Returns the active channel number
isallchan - Returns whether I/O is set to read/write all channels
SYNOPSIS
#include "wiodef.h"
short whichchan (WVFILE *wfp)
short isallchan (WVFILE *wfp)
DESCRIPTION
whichchan() returns the channel number set for I/O for the waveform
associated with wfp. If the waveform is set to read/write all channels,
the channel number is -1.
isallchan returns true if the waveform is set to read/write all
channels (channel number == -1), and false otherwise.
SEE ALSO
numchan(),
wavchan(),
allchan(),
Libcwav library
AUTHOR
H.T.Bunnell, Shirley Peters