public void Start()
{
Guid guid;
HIDImports.SP_DEVICE_INTERFACE_DATA sp_device_interface_data = new HIDImports.SP_DEVICE_INTERFACE_DATA()
{
cbSize = Marshal.SizeOf(typeof(HIDImports.SP_DEVICE_INTERFACE_DATA))
};
if (_stream != null)
{
throw new InvalidOperationException("Connected to a different stream already!");
}
HIDImports.HidD_GetHidGuid(out guid);
IntPtr hDevInfo = HIDImports.SetupDiGetClassDevs(ref guid, null, IntPtr.Zero, 0x10);
int num = 0;
while (HIDImports.SetupDiEnumDeviceInterfaces(hDevInfo, IntPtr.Zero, ref guid, num++, ref sp_device_interface_data))
{
uint num2;
HIDImports.SP_DEVICE_INTERFACE_DETAIL_DATA deviceInterfaceDetailData = new HIDImports.SP_DEVICE_INTERFACE_DETAIL_DATA {
cbSize = (IntPtr.Size == 8) ? (uint)8 : (uint)5
};
HIDImports.SetupDiGetDeviceInterfaceDetail(hDevInfo, ref sp_device_interface_data, IntPtr.Zero, 0, out num2, IntPtr.Zero);
if (HIDImports.SetupDiGetDeviceInterfaceDetail(hDevInfo, ref sp_device_interface_data, ref deviceInterfaceDetailData, num2, out num2, IntPtr.Zero))
{
HIDImports.HIDD_ATTRIBUTES hidd_attributes = new HIDImports.HIDD_ATTRIBUTES()
{
Size = Marshal.SizeOf(typeof(HIDImports.HIDD_ATTRIBUTES))
};
SafeFileHandle handle = HIDImports.CreateFile(deviceInterfaceDetailData.DevicePath, FileAccess.ReadWrite, FileShare.ReadWrite, IntPtr.Zero, FileMode.Open, HIDImports.EFileAttributes.Overlapped, IntPtr.Zero);
if (HIDImports.HidD_GetAttributes(handle.DangerousGetHandle(), ref hidd_attributes))
{
if (IsAppleWirelessKeyboard(hidd_attributes.VendorID, hidd_attributes.ProductID))
{
_stream = new FileStream(handle, FileAccess.ReadWrite, 0x16, true);
}
else
{
handle.Close();
}
}
}
}
HIDImports.SetupDiDestroyDeviceInfoList(hDevInfo);
if (_stream != null)
{
byte[] buffer = new byte[0x16];
_stream.BeginRead(buffer, 0, buffer.Length, new AsyncCallback(SpecialKeyStateChanged), buffer);
}
}
private static bool IsAppleWirelessKeyboard(int vid, int pid)
{
if (vid == VIDApple)
{
Guid HIDGUID;
HIDImports.HidD_GetHidGuid(out HIDGUID);
IntPtr DeviceInfo = HIDImports.SetupDiGetClassDevs(ref HIDGUID, null, IntPtr.Zero, 16);
uint MemberIndex = 0;
HIDImports.SP_DEVINFO_DATA DID = new HIDImports.SP_DEVINFO_DATA()
{
cbSize = (uint)Marshal.SizeOf(typeof(HIDImports.SP_DEVINFO_DATA))
};
while (HIDImports.SetupDiEnumDeviceInfo(DeviceInfo, MemberIndex++, ref DID))
{
uint RequiredSize = 0;
uint PropertyDataType = 0;
IntPtr buffer = Marshal.AllocHGlobal(512);
string CLASS = "";
if (HIDImports.SetupDiGetDeviceRegistryProperty(DeviceInfo, ref DID, (uint)HIDImports.SPDRP.SPDRP_CLASS, out PropertyDataType, buffer, 512, out RequiredSize))
{
CLASS = Marshal.PtrToStringAuto(buffer);
}
if (CLASS.Equals("Keyboard", StringComparison.InvariantCultureIgnoreCase))
{
return(true);
}
}
HIDImports.SetupDiDestroyDeviceInfoList(DeviceInfo);
}
return(false);
}