juce::MidiDeviceListConnection Class Reference

Detailed Description

To find out when the available MIDI devices change, call MidiDeviceListConnection::make(), passing a lambda that will be called on each configuration change.

To stop the lambda receiving callbacks, destroy the MidiDeviceListConnection instance returned from make(), or call reset() on it.

// Start listening for configuration changes
auto connection = MidiDeviceListConnection::make ([]
{
    // This will print a message when devices are connected/disconnected
    DBG ("MIDI devices changed");
});
 
// Stop listening
connection.reset();

Public Types
using	Key = uint64_t

Public Member Functions
	MidiDeviceListConnection ()=default
	Constructs an inactive connection.
void	reset () noexcept
	Clears this connection.

Static Public Member Functions
static MidiDeviceListConnection	make (std::function< void()>)
	Registers a function to be called whenever the midi device list changes.

Member Typedef Documentation

Key

using juce::MidiDeviceListConnection::Key = uint64_t

Constructors and Destructors

MidiDeviceListConnection()

juce::MidiDeviceListConnection::MidiDeviceListConnection ( )

default

Constructs an inactive connection.

Referenced by make().

Member Functions

reset()

void juce::MidiDeviceListConnection::reset ( )

noexcept

Clears this connection.

If this object had an active connection, that connection will be deactivated, and the corresponding callback will be removed from the MidiDeviceListConnectionBroadcaster.

make()

MidiDeviceListConnection juce::MidiDeviceListConnection::make ( std::function< void()> )

static

Registers a function to be called whenever the midi device list changes.

The callback will only be active for as long as the return MidiDeviceListConnection remains alive. To stop receiving device change notifications, destroy the Connection object, e.g. by allowing it to fall out of scope.

References MidiDeviceListConnection().