IntPtr hwndSourceHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
if (msg == WM_DEVICECHANGE)
{
if ((int)wParam == DBT_DEVICEARRIVAL)
{
DEV_BROADCAST_DEVICEINTERFACE info = (DEV_BROADCAST_DEVICEINTERFACE)Marshal.PtrToStructure(lParam, typeof(DEV_BROADCAST_DEVICEINTERFACE));
if (info.dbcc_classguid == HidClassGuid)
{
if (SUDDriver.DescribeSUD(info.dbcc_name).ProductType == SeneyeProductType.SUDv2e)
{
this.MessageBus.SendMessage <string>(info.dbcc_name, "SUDArrived");
}
}
}
else if ((int)wParam == DBT_DEVICEREMOVECOMPLETE)
{
DEV_BROADCAST_DEVICEINTERFACE info = (DEV_BROADCAST_DEVICEINTERFACE)Marshal.PtrToStructure(lParam, typeof(DEV_BROADCAST_DEVICEINTERFACE));
if (info.dbcc_classguid == HidClassGuid)
{
this.MessageBus.SendMessage <string>(info.dbcc_name, "HIDDisconnected");
}
}
}
return(IntPtr.Zero);
}
private void _EnumerateDevices()
{
List <string> paths = new List <string>();
var hidClass = HidClassGuid;
var deviceInfoSet = NativeMethods.SetupDiGetClassDevs(ref hidClass, null, 0, NativeMethods.DIGCF_PRESENT | NativeMethods.DIGCF_DEVICEINTERFACE);
if (deviceInfoSet.ToInt64() != NativeMethods.INVALID_HANDLE_VALUE)
{
var deviceInfoData = CreateDeviceInfoData();
var deviceIndex = 0;
while (NativeMethods.SetupDiEnumDeviceInfo(deviceInfoSet, deviceIndex, ref deviceInfoData))
{
deviceIndex += 1;
var deviceInterfaceData = new NativeMethods.SP_DEVICE_INTERFACE_DATA();
deviceInterfaceData.cbSize = Marshal.SizeOf(deviceInterfaceData);
var deviceInterfaceIndex = 0;
while (NativeMethods.SetupDiEnumDeviceInterfaces(deviceInfoSet, ref deviceInfoData, ref hidClass, deviceInterfaceIndex, ref deviceInterfaceData))
{
deviceInterfaceIndex++;
var devicePath = GetDevicePath(deviceInfoSet, deviceInterfaceData);
if (!paths.Contains(devicePath))
{
paths.Add(devicePath);
}
}
}
NativeMethods.SetupDiDestroyDeviceInfoList(deviceInfoSet);
}
paths.ForEach(x => {
if (SUDDriver.DescribeSUD(x).ProductType == SeneyeProductType.SUDv2e)
{
this.MessageBus.SendMessage <string>(x, "SUDArrived");
}
});
}
