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use ::ConnectError;
use ::{MidiInputConnection, MidiOutputConnection};
// TODO: maybe move to module `virtual` instead of `os::unix`?
/// Trait that is implemented by `MidiInput` on platforms that
/// support virtual ports (currently every platform but Windows).
pub trait VirtualInput<T: Send> where Self: Sized {
/// Creates a virtual input port. Once it has been created,
/// other applications can connect to this port and send MIDI
/// messages which will be received by this port.
fn create_virtual<F>(
self, port_name: &str, callback: F, data: T
) -> Result<MidiInputConnection<T>, ConnectError<Self>>
where F: FnMut(u64, &[u8], &mut T) + Send + 'static;
}
/// Trait that is implemented by `MidiOutput` on platforms that
/// support virtual ports (currently every platform but Windows).
pub trait VirtualOutput where Self: Sized {
/// Creates a virtual output port. Once it has been created,
/// other applications can connect to this port and will
/// receive MIDI messages that are sent to this port.
fn create_virtual(
self, port_name: &str
) -> Result<MidiOutputConnection, ConnectError<Self>>;
}