C# Class Midi.OutputDevice

A MIDI output device.

Each instance of this class describes a MIDI output device installed on the system. You cannot create your own instances, but instead must go through the InstalledDevices property to find which devices are available. You may wish to examine the DeviceBase.Name property of each one and present the user with a choice of which device to use.

Open an output device with Open and close it with Close. While it is open, you may send MIDI messages with functions such as SendNoteOn, SendNoteOff and SendProgramChange. All notes may be silenced on the device by calling SilenceAllNotes.

Note that the above methods send their messages immediately. If you wish to arrange for a message to be sent at a specific future time, you'll need to instantiate some subclass of Message (eg NoteOnMessage) and then pass it to Clock.Schedule.

Inheritance: Midi.DeviceBase

Mostrar archivo Open project: jstnryan/midi-dot-net Class Usage Examples

Public Methods

Method	Description
Close ( ) : void	Closes this output device.
Open ( ) : void	Opens this output device.
SendControlChange ( Channel channel, Control control, int value ) : void	Sends a Control Change message to this MIDI output device.
SendNoteOff ( Channel channel, Pitch pitch, int velocity ) : void	Sends a Note Off message to this MIDI output device.
SendNoteOn ( Channel channel, Pitch pitch, int velocity ) : void	Sends a Note On message to this MIDI output device.
SendPercussion ( Percussion percussion, int velocity ) : void	Sends a Note On message to Channel10 of this MIDI output device. This is simply shorthand for a Note On message on Channel10 with a percussion-specific note, so there is no corresponding message to receive from an input device.
SendPitchBend ( Channel channel, int value ) : void	Sends a Pitch Bend message to this MIDI output device.
SendProgramChange ( Channel channel, Instrument instrument ) : void	Sends a Program Change message to this MIDI output device. A Program Change message is used to switch among instrument settings, generally instrument voices. An instrument conforming to General Midi 1 will have the instruments described in the Instrument enum; other instruments may have different instrument sets.
SendSysEx ( Byte data ) : void	Sends a System Exclusive (sysex) message to this MIDI output device.
SilenceAllNotes ( ) : void	Silences all notes on this output device.
UpdateInstalledDevices ( ) : void	Refresh the list of input devices

Private Methods

Method	Description
CheckNotOpen ( ) : void	Throws a MidiDeviceException if this device is open.
CheckOpen ( ) : void	Throws a MidiDeviceException if this device is not open.
CheckReturnCode ( Win32API rc ) : void	Makes sure rc is MidiWin32Wrapper.MMSYSERR_NOERROR. If not, throws an exception with an appropriate error message.
MakeDeviceList ( ) : Midi.OutputDevice[]	Private method for constructing the array of MidiOutputDevices by calling the Win32 api.
OutputDevice ( UIntPtr deviceId, Win32API caps ) : System	Private Constructor, only called by the getter for the InstalledDevices property.

Method Details

Close() public method

Closes this output device.

The device is not open. The device cannot be closed.

public Close ( ) : void
return	void

Open() public method

Opens this output device.

The device is already open. The device cannot be opened.

public Open ( ) : void
return	void

SendControlChange() public method

Sends a Control Change message to this MIDI output device.

channel, control, or value is /// out-of-range. The device is not open. The message cannot be sent.

public SendControlChange ( Channel channel, Control control, int value ) : void
channel	Channel	The channel.
control	Control	The control.
value	int	The new value 0..127.
return	void

SendNoteOff() public method

Sends a Note Off message to this MIDI output device.

channel, note, or velocity is /// out-of-range. The device is not open. The message cannot be sent.

public SendNoteOff ( Channel channel, Pitch pitch, int velocity ) : void
channel	Channel	The channel.
pitch	Pitch	The pitch.
velocity	int	The velocity 0..127.
return	void

SendNoteOn() public method

Sends a Note On message to this MIDI output device.

channel, pitch, or velocity is /// out-of-range. The device is not open. The message cannot be sent.

public SendNoteOn ( Channel channel, Pitch pitch, int velocity ) : void
channel	Channel	The channel.
pitch	Pitch	The pitch.
velocity	int	The velocity 0..127.
return	void

SendPercussion() public method

Sends a Note On message to Channel10 of this MIDI output device.

This is simply shorthand for a Note On message on Channel10 with a percussion-specific note, so there is no corresponding message to receive from an input device.

percussion or velocity is out-of-range. /// The device is not open. The message cannot be sent.

public SendPercussion ( Percussion percussion, int velocity ) : void
percussion	Percussion	The percussion.
velocity	int	The velocity 0..127.
return	void

SendPitchBend() public method

Sends a Pitch Bend message to this MIDI output device.

channel or value is out-of-range. /// The device is not open. The message cannot be sent.

public SendPitchBend ( Channel channel, int value ) : void
channel	Channel	The channel.
value	int	The pitch bend value, 0..16383, 8192 is centered.
return	void

SendProgramChange() public method

Sends a Program Change message to this MIDI output device.

A Program Change message is used to switch among instrument settings, generally instrument voices. An instrument conforming to General Midi 1 will have the instruments described in the Instrument enum; other instruments may have different instrument sets.

channel or instrument is out-of-range. /// The device is not open. The message cannot be sent.

public SendProgramChange ( Channel channel, Instrument instrument ) : void
channel	Channel	The channel.
instrument	Instrument	The instrument.
return	void

SendSysEx() public method

Sends a System Exclusive (sysex) message to this MIDI output device.

The message cannot be sent.

public SendSysEx ( Byte data ) : void
data	Byte	The message to send (as byte array)
return	void

SilenceAllNotes() public method

Silences all notes on this output device.

The device is not open. The message cannot be sent.

public SilenceAllNotes ( ) : void
return	void

UpdateInstalledDevices() public static method

Refresh the list of input devices

public static UpdateInstalledDevices ( ) : void
return	void