A MidiShare event. Most events are made of one fixed size cell. Some events like typeSysEx require additional cells.
typedef struct TMidiEv *MidiEvPtr;
typedef struct TMidiEv
{
MidiEvPtr link; // link to next event
unsigned long date; // event date (in ms)
Byte evType; // event type
Byte refNum; // sender reference number
Byte port; // Midi port
Byte chan; // Midi channel
union { // info depending of event type :
struct { // for notes
Byte pitch; // pitch
Byte vel; // velocity
unsigned short dur; // duration
} note;
Byte data[4]; // for typeKeyOn and other small events
MidiSEXPtr linkSE; // for typeSysEx and other variable length events
MidiSTPtr linkST; // for typeProcess and other special events
} info;
} TMidiEv;
Macros for accessing the common parts of an event.
#define Link(e) ( (e)->link ) #define Date(e) ( (e)->date ) #define EvType(e) ( (e)->evType ) #define RefNum(e) ( (e)->refNum ) #define Port(e) ( (e)->port ) #define Canal(e) ( (e)->chan ) #define Chan(e) ( (e)->chan )
Macros for accessing the specific parts.
#define Pitch(e) ( (e)->info.note.pitch ) #define Vel(e) ( (e)->info.note.vel ) #define Dur(e) ( (e)->info.note.dur ) #define Data(e) ( (e)->info.data ) #define LinkSE(e) ( (e)->info.linkSE ) #define LinkST(e) ( (e)->info.linkST )
instead of these macros, you should use MidiGetField and MidiSetField which provides a uniform acces to the specific fields of an event.