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MIDIGetNumberOfExternalDevicees

Abstract: Returns the number of external MIDI devices in the system. 

extern ItemCount MIDIGetNumberOfExternalDevices();

External MIDI devices are MIDI devices connected to endpoints via a standard MIDI cable. Their presence is completely optional, only when a UI somewhere adds them.

New for CoreMIDI 1.1.

Result: The number of external devices in the system, or 0 if an error occurred.
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