This structure contains fields for the MIDISetup function.
typedef struct _MIDISETUP {
ULONG ulStructLength; /* Structure length. */
PULONG pulMaxRTSysexLength; /* Max. size of message. */
PPULONG ppulMIDICurrentTime; /* Current time. */
ULONG ulFlags; /* Indicates callback type. */
PFNMIDI_NOTIFYCALLBACK pfnMIDI_NotifyCallback; /* Notification callbacks. */
HWND hwndCallback; /* Window handle for callback. */
HQUEUE hqueueCallback; /* Queue handle for callback. */
} MIDISETUP;
typedef MIDISETUP * PMIDISETUP ;