/// <summary>
/// Initializes a new instance of the <see cref="RawKeyboard"/> class.
/// </summary>
/// <param name="hwnd">
/// The hwnd.
/// </param>
/// <exception cref="ApplicationException">
/// </exception>
public RawKeyboard(IntPtr hwnd)
{
var rid = new RawInputDevice[1];
rid[0].UsagePage = HidUsagePage.GENERIC;
rid[0].Usage = HidUsage.Keyboard;
rid[0].Flags = RawInputDeviceFlags.INPUTSINK;
rid[0].Target = hwnd;
if (!Win32.RegisterRawInputDevices(rid, (uint)rid.Length, (uint)Marshal.SizeOf(rid[0])))
{
throw new ApplicationException("Failed to register raw input device(s).");
}
}
internal static extern bool RegisterRawInputDevices(RawInputDevice[] pRawInputDevice, uint numberDevices, uint size);