int get_sound_input_cap_parm(int rate, int bits, int stereo);
DESCRIPTIONChecks whether the specified recording frequency, number of bits, and mono/stereo mode are supported (and how) by the current audio driver.
RETURN VALUEThe function returns one of the following possible values:
0 = It is impossible to record in this format. 1 = Recording is possible, but audio output will be suspended. 2 = Recording is possible at the same time as playing other sounds (full duplex sound card). -n = Sampling rate not supported, but rate 'n' would work instead.