A Control Change message with controller and value.
CtrlChange events have 2 fields numbered from 0 to 1 :
0
- A control number from 0 to 127. (Field size : 1 byte)
1
- A control value from 0 to 127. (Field size : 1 byte)
Creates a CtrlChange event. Return a pointer to the event or NIL if there is no more memory space.
MidiEvPtr CtrlChange( long date, short ctrl, short val, short chan, short port) { MidiEvPtr e; if ( e = MidiNewEv( typeCtrlChange ) )/* Allocate a new event. Check not NIL */ { Date(e) = date; /* These information are common to all */ Chan(e) = chan; /* kind of events */ Port(e) = port; MidiSetField(e,0,ctrl); /* Fields particular to CtrlChange */ MidiSetField(e,1,val); } return e; }