
Notifies the port driver that the MIDI synthesizer or capture device has advanced to a new position in the MIDI stream. IPortMidi provides the following additional methods:

IPortMidi inherits the methods in base interface IPort.

The MIDI port driver exposes an IPortMidi interface to the miniport driver. The adapter driver provides a corresponding MIDI miniport driver that binds to the MIDI port driver object to form a MIDI filter (see MIDI and DirectMusic Filters) that can capture or render a MIDI stream. The MIDI port driver manages a MIDI synthesizer or capture device.
