This structure contains fields for the MIDIQueryInstanceList function.
typedef struct _MIDIINSTANCEINFO { ULONG ulStructLength; /* Structure length. */ MINSTANCE minstance; /* Instance number. */ ULONG ulClassNumber; /* Class number. */ CHAR szmInstanceName[MIDI_NAME_LENGTH]; /* Instance name. */ ULONG ulNumLinks; /* Number of links. */ ULONG ulAttributes; /* Instance attributes. */ } MIDIINSTANCEINFO; typedef MIDIINSTANCEINFO * PMIDIINSTANCEINFO ;