midir 0.10.4

A cross-platform, realtime MIDI processing library, inspired by RtMidi.
Documentation 
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use crate::{ConnectError, 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>>;
}