/// <summary>
/// Query DeviceInformation class for Midi Output devices
/// </summary>
private async Task EnumerateMidiOutputDevices()
{
// Clear output devices
OutputDevices.Clear();
OutputDeviceProperties.Clear();
outputDeviceProperties.IsEnabled = false;
// Find all output MIDI devices
string midiOutputQueryString = MidiOutPort.GetDeviceSelector();
DeviceInformationCollection midiOutputDevices = await DeviceInformation.FindAllAsync(midiOutputQueryString);
// Return if no external devices are connected, and GS synth is not detected
if (midiOutputDevices.Count == 0)
{
OutputDevices.Add("No MIDI output devices found!");
outputDevices.IsEnabled = false;
NotifyUser("Please connect at least one external MIDI device for this demo to work correctly");
return;
}
// List specific device information for each output device
foreach (DeviceInformation deviceInfo in midiOutputDevices)
{
OutputDevices.Add(deviceInfo.Name);
outputDevices.IsEnabled = true;
}
NotifyUser("MIDI Output devices found!");
}
public void UpdateDevices()
{
InputDevices.Clear();
OutputDevices.Clear();
VideoDevices.Clear();
for (int i = 0; i < WaveIn.DeviceCount; i++)
{
InputDevices.Add(new InputMenuData {
Name = WaveIn.GetCapabilities(i).ProductName
});
}
for (int i = 0; i < WaveOut.DeviceCount; i++)
{
OutputDevices.Add(new OutputMenuData {
Name = WaveOut.GetCapabilities(i).ProductName
});
}
var videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
foreach (FilterInfo device in videoDevices)
{
VideoDevices.Add(new VideoMenuData {
Name = device.Name
});
}
}
/// <summary>
/// Clear all input and output MIDI device lists and properties
/// </summary>
private void ClearAllDeviceValues()
{
// Clear input devices
InputDevices.Clear();
InputDevices.Add("Click button to list input MIDI devices");
inputDevices.IsEnabled = false;
// Clear output devices
OutputDevices.Clear();
OutputDevices.Add("Click button to list output MIDI devices");
outputDevices.IsEnabled = false;
// Clear input device properties
InputDeviceProperties.Clear();
InputDeviceProperties.Add("Select a MIDI input device to view its properties");
inputDeviceProperties.IsEnabled = false;
// Clear output device properties
OutputDeviceProperties.Clear();
OutputDeviceProperties.Add("Select a MIDI output device to view its properties");
outputDeviceProperties.IsEnabled = false;
}