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Getting the Number of Devices
Use the following functions to determine how many devices of a certain type
are available in a given system.
Function
| Description
| auxGetNumDevs
| Retrieves the number of auxiliary audio devices present in the system.
| midiInGetNumDevs
| Retrieves the number of MIDI input devices present in the system.
| midiOutGetNumDevs
| Retrieves the number of MIDI output devices present in the system.
| waveInGetNumDevs
| Retrieves the number of waveform input devices present in the system.
| waveOutGetNumDevs
| Retrieves the number of waveform output devices present in the system.
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Audio devices are identified by a device identifier. The device identifier is
determined implicitly from the number of devices present in a given system.
Device identifiers range from zero to one less than the number of devices present.
For example, if there are two MIDI output devices in a system, valid device
identifiers are 0 and 1.
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