The DMUS_COMMAND_PARAM structure is used as the pParam parameter in calls to various GetParam and SetParam methods when the track is a command track and the rguidType parameter is GUID_CommandParam.
typedef struct {
BYTE bCommand;
BYTE bGrooveLevel;
BYTE bGrooveRange;
} DMUS_COMMAND_PARAM;
Windows NT/2000: Requires Windows 2000.
Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
Header: Declared in dmusicf.h.
IDirectMusicPerformance::GetParam, IDirectMusicPerformance::SetParam, IDirectMusicSegment::GetParam, IDirectMusicSegment::SetParam, IDirectMusicTrack::GetParam, IDirectMusicTrack::SetParam