flutter_midi_command_windows

Windows implementation of FlutterMidiCommand.

Current behavior

• Enumerates WinMM MIDI input/output endpoints and exposes them as MidiDevices.
• Emits onMidiSetupChanged events when Windows MIDI topology changes, including USB hot-plug attach/remove updates.
• Pairs balanced multi-port WinMM endpoints into full-duplex devices when matching input/output groups can be inferred from endpoint names.

Limitations

• Uses the WinMM MIDI API rather than the newer Windows MIDI Services stack.
• Virtual device creation and RTP/network session APIs are not implemented on Windows.