MidiSetPortState


For opening and closing of a Midi port. The implementation of Midi ports is controlled by the MidiSetPortState and MidiGetPortState routines. These must be used with care since they affect all the applications. A closed port is available for other uses (printing, AppleTalk, etc.). The Midi applications holding a "context alarm" will be informed of this change in the ports state.

pascal void    MidiSetPortState( short port, Boolean state );

port
a 16-bit integer, the port number to control.
state
a Boolean, True : to open a port, False : to close a port.


Open port 0.


MidiSetPortState(0, 1);