IDirectMusicPort
This interface provides access to a DirectMusicPort object, which represents a device that sends or receives music data. The input port of a MIDI card, the output port of a MIDI card, the Microsoft Software Synthesizer, and an IHV-provided filter are all ports. A physical device such as a MIDI card might provide multiple ports. A single port, however, cannot both capture and render data.
For an overview, see Using Ports.
The methods of the IDirectMusicPort interface can be organized into the following groups:
| Buffers | PlayBuffer |
| Read | |
| SetReadNotificationHandle | |
| Channels | GetChannelPriority |
| GetNumChannelGroups | |
| SetChannelPriority | |
| SetNumChannelGroups | |
| Device management | Activate |
| DeviceIoControl | |
| SetDirectSound | |
| Information | GetCaps |
| GetFormat | |
| GetLatencyClock | |
| GetRunningStats | |
| Downloadable sounds | Compact |
| DownloadInstrument | |
| UnloadInstrument |
All COM interfaces inherit the IUnknown interface methods. This interface supports the following three methods:
| IUnknown | AddRef |
| QueryInterface | |
| Release |
The LPDIRECTMUSICPORT type is defined as a pointer to the IDirectMusicPort interface.
typedef IDirectMusicPort *LPDIRECTMUSICPORT;
Requirements
OS Versions: Windows CE .NET 4.0 and Windows CE .NET 4.1.
Header: Dmusicc.h.
Link Library: Dmusic.lib.
Last updated on Monday, April 12, 2004
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