/// <summary>
/// Create a new MidiOutPort for the selected device
/// </summary>
/// <param name="sender">Element that fired the event</param>
/// <param name="e">Event arguments</param>
private async void outputDevices_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
// Get the selected output MIDI device
int selectedOutputDeviceIndex = outputDevices.SelectedIndex;
messageType.IsEnabled = false;
JingleBells.IsEnabled = false;
HappyBirthday.IsEnabled = false;
resetButton.IsEnabled = false;
// Try to create a MidiOutPort
if (selectedOutputDeviceIndex < 0)
{
NotifyUser("Select a MIDI output device to be able to send messages to it");
return;
}
DeviceInformationCollection devInfoCollection = _midiOutDeviceWatcher.GetDeviceInformationCollection();
if (devInfoCollection == null)
{
NotifyUser("Device not found!");
return;
}
DeviceInformation devInfo = devInfoCollection[selectedOutputDeviceIndex];
if (devInfo == null)
{
NotifyUser("Device not found!");
return;
}
_currentMidiOutputDevice = await MidiOutPort.FromIdAsync(devInfo.Id);
if (_currentMidiOutputDevice == null)
{
NotifyUser("Unable to create MidiOutPort from output device");
return;
}
// We have successfully created a MidiOutPort; add the device to the list of active devices
if (!_midiOutPorts.Contains(_currentMidiOutputDevice))
{
_midiOutPorts.Add(_currentMidiOutputDevice);
}
// Enable message type list & reset button
messageType.IsEnabled = true;
JingleBells.IsEnabled = true;
HappyBirthday.IsEnabled = true;
resetButton.IsEnabled = true;
NotifyUser("Output Device selected successfully! Waiting for message type selection...");
}
/// <summary>
/// Change the active output MIDI device
/// </summary>
/// <param name="sender">Element that fired the event</param>
/// <param name="e">Event arguments</param>
private void outputDevices_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
// Get the selected output MIDI device
int selectedOutputDeviceIndex = outputDevices.SelectedIndex;
// Try to display the appropriate device properties
if (selectedOutputDeviceIndex < 0)
{
// Clear output device properties
OutputDeviceProperties.Clear();
OutputDeviceProperties.Add("Select a MIDI output device to view its properties");
outputDeviceProperties.IsEnabled = false;
NotifyUser("Select a MIDI output device to view its properties");
return;
}
DeviceInformationCollection devInfoCollection = _midiOutDeviceWatcher.GetDeviceInformationCollection();
if (devInfoCollection == null)
{
OutputDeviceProperties.Clear();
OutputDeviceProperties.Add("Device not found!");
outputDeviceProperties.IsEnabled = false;
NotifyUser("Device not found!");
return;
}
DeviceInformation devInfo = devInfoCollection[selectedOutputDeviceIndex];
if (devInfo == null)
{
OutputDeviceProperties.Clear();
OutputDeviceProperties.Add("Device not found!");
outputDeviceProperties.IsEnabled = false;
NotifyUser("Device not found!");
return;
}
// Display the found properties
DisplayDeviceProperties(devInfo, outputDeviceProperties, OutputDeviceProperties);
NotifyUser("Device information found!");
}