The IDirectMusicPort::UnloadInstrument method is used to unload a previously downloaded DLS instrument.
HRESULT UnloadInstrument(
IDirectMusicDownloadedInstrument *pDownloadedInstrument
);
If the method succeeds, the return value is S_OK.
If it fails, the method may return one of the following error values:
DMUS_E_NOT_DOWNLOADED_TO_PORT |
E_POINTER |
E_NOTIMPL |
This method must be called in order to free memory allocated by IDirectMusicPort::DownloadInstrument.
Windows NT/2000: Requires Windows 2000.
Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
Header: Declared in dmusicc.h.