private void EnumerateDevices()
{
if ((_deviceNameCache != null) && (_deviceIdCache != null))
{
return;
}
uint deviceCount = 0;
_portableDeviceManager.GetDevices(null, ref deviceCount);
var deviceIds = new string[deviceCount];
_portableDeviceManager.GetDevices(deviceIds, ref deviceCount);
var devices = deviceIds.Select(CreateDevice).ToList();
_deviceNameCache = devices.ToDictionary(device => device.Name);
_deviceIdCache = devices.ToDictionary(device => device.Id);
}
private static List <PortableDevice> EnumerateAllDevices(IPortableDeviceManager deviceManager)
{
uint deviceCount = 0;
deviceManager.RefreshDeviceList();
deviceManager.GetDevices(null, ref deviceCount);
var devices = new List <PortableDevice>();
if (deviceCount == 0)
{
return(devices);
}
var deviceIds = new string[deviceCount];
deviceManager.GetDevices(deviceIds, ref deviceCount);
devices.AddRange(deviceIds.Select(id => CreateDevice(deviceManager, id)));
return(devices);
}