public AlsaMidiApi()
{
input = new AlsaSequencer(AlsaIOType.Duplex, AlsaIOMode.NonBlocking);
input_client_id = input.CurrentClientId;
output = new AlsaSequencer(AlsaIOType.Output, AlsaIOMode.NonBlocking);
output_client_id = output.CurrentClientId;
system_announcement = new AlsaSequencer(AlsaIOType.Input, AlsaIOMode.NonBlocking);
}
IEnumerable <AlsaPortInfo> EnumerateMatchingPorts(AlsaSequencer seq, AlsaPortCapabilities cap)
{
var cinfo = new AlsaClientInfo {
Client = -1
};
while (seq.QueryNextClient(cinfo))
{
var pinfo = new AlsaPortInfo {
Client = cinfo.Client, Port = -1
};
while (seq.QueryNextPort(pinfo))
{
if ((pinfo.PortType & midi_port_type) != 0 &&
(pinfo.Capabilities & cap) == cap)
{
yield return(pinfo.Clone());
}
}
}
}
public void SetContextSequencer(AlsaSequencer seq)
{
Natives.snd_seq_system_info(seq.SequencerHandle, handle);
}