public RawKeyboard(IntPtr hwnd, bool captureOnlyInForeground)
{
var rid = new RawInputDevice[1];
rid[0].UsagePage = HidUsagePage.GENERIC;
rid[0].Usage = HidUsage.Keyboard;
rid[0].Flags = (captureOnlyInForeground ? RawInputDeviceFlags.NONE : RawInputDeviceFlags.INPUTSINK) | RawInputDeviceFlags.DEVNOTIFY;
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);
