/// <summary>
/// Enumerates list of PlugNPlay devices connected to the system.
/// Finds ones that match XBox Controller signature.
/// Extracts and returns number that matches first 4 bytes of devices' DirectInput ProductGuid.
/// </summary>
/// <param name="collection">ManagementObjectCollection retrieved from WMI.</param>
/// <returns>
/// For each XBox controller found returns:
/// string representation of 8 digits hexa number
/// that matches first 4 bytes of that device's DirectInput ProductGuid.
/// </returns>
public static string[] GetAllXInputDevicesVIDPIDsFromPnPDevices_AsStrings(ManagementObjectCollection collection)
{
List <string> xb_VIDPIDs = new List <string>();
string deviceID;
foreach (ManagementObject obj in collection)
{
deviceID = (string)obj.GetPropertyValue("DeviceID");
if (deviceID.Contains(XInputDeviceIDMarker))
{
xb_VIDPIDs.Add(Get_PID_VID(deviceID));
}
}
var comparerOrdNoCase = new StringEqualityComparerOrdinalNoCase();
return(xb_VIDPIDs.Distinct(comparerOrdNoCase).ToArray());
}
/// <summary>
/// Normally for internal use only. Call if user has attached new Gamepads,
/// or detached Gamepads you want discarded.
/// Otherwise, loaded once on first Devices request and does not reflect changes in gamepads attachment.
/// TODO: Do this better ?
/// </summary>
public static void ReloadDevices()
{
if (_Devices == null)
{
_Devices = new List <DirectInputGamepad>(16);
}
else
{
_Devices.Clear();
}
// gamepads are generally misidentified as Joysticks in DirectInput... get both
var devices =
Enumerable.Concat(
Manager.GetDevices(DeviceType.Gamepad, EnumDevicesFlags.AttachedOnly)
.Cast <DeviceInstance>()
.Select(di => new { DeviceInstance = di, GamingDeviceType = GamingDeviceType.Gamepad })
,
Manager.GetDevices(DeviceType.Joystick, EnumDevicesFlags.AttachedOnly)
.Cast <DeviceInstance>()
.Select(di => new { DeviceInstance = di, GamingDeviceType = GamingDeviceType.Joystick })
);
if (ExcludeXInputDevices)
{
uint[] xInputDevices_VIDPIDs = WMI.GetAllXInputDevicesVIDPIDsFromPnPDevices();
devices = devices
.Where(dii => xInputDevices_VIDPIDs.Contains(dii.DeviceInstance.ProductGuid.PartA()) == false);
}
var comparerOrdNoCase = new StringEqualityComparerOrdinalNoCase();
var groups = devices
//.GroupBy(di => di.ProductName, stringEqualityComparerOrdinal);
.ToLookup(a => a.DeviceInstance.ProductName, comparerOrdNoCase);
foreach (var group in groups)
{
if (group.Count() == 1)
{
var deviceInfo = group.First();
_Devices.Add(
new DirectInputGamepad(
deviceInfo.DeviceInstance,
deviceInfo.DeviceInstance.ProductName,
deviceInfo.GamingDeviceType
)
);
}
else
{
int i = 1;
foreach (var deviceInfo in group)
{
_Devices.Add(
new DirectInputGamepad(
deviceInfo.DeviceInstance,
$"{deviceInfo.DeviceInstance.ProductName} [{i}]",
deviceInfo.GamingDeviceType
)
);
i++;
}
}
}
}