private IntPtr OnKeyPressed(int nCode, IntPtr wParam, IntPtr lParam)
{
if (ignore_next_key_press)
{
ignore_next_key_press = false;
return(CallNextHookEx(win_api_hook_id, nCode, wParam, lParam));
}
if (nCode >= 0)
{
Dictionary <System.Windows.Forms.Keys, Key> bindings = new Dictionary <System.Windows.Forms.Keys, Key>
{
{ System.Windows.Forms.Keys.LWin, Key.Modifier },
{ System.Windows.Forms.Keys.J, Key.LeftMouseButton },
{ System.Windows.Forms.Keys.K, Key.RightMouseButton },
{ System.Windows.Forms.Keys.N, Key.ScrollDown },
{ System.Windows.Forms.Keys.H, Key.ScrollUp },
{ System.Windows.Forms.Keys.Oemcomma, Key.ScrollLeft },
{ System.Windows.Forms.Keys.OemPeriod, Key.ScrollRight },
{ System.Windows.Forms.Keys.A, Key.CalibrateLeft },
{ System.Windows.Forms.Keys.D, Key.CalibrateRight },
{ System.Windows.Forms.Keys.W, Key.CalibrateUp },
{ System.Windows.Forms.Keys.S, Key.CalibrateDown },
{ System.Windows.Forms.Keys.Escape, Key.StopCalibration },
{ System.Windows.Forms.Keys.Space, Key.Accessibility_SaveCalibration },
};
System.Windows.Forms.Keys key_code = (System.Windows.Forms.Keys)Marshal.ReadInt32(lParam);
Key key = Key.Unbound;
if (bindings.ContainsKey(key_code))
{
key = bindings[key_code];
}
KeyState key_state;
if (wParam == (IntPtr)WM_KEYDOWN || wParam == (IntPtr)WM_SYSKEYDOWN)
{
key_state = KeyState.Down;
}
else if (wParam == (IntPtr)WM_KEYUP || wParam == (IntPtr)WM_SYSKEYUP)
{
key_state = KeyState.Up;
}
else
{
return(CallNextHookEx(win_api_hook_id, nCode, wParam, lParam));
}
if (receiver.OnKeyPressed(key, key_state, Helpers.IsModifier(key_code), this))
{
return(new IntPtr(1));
}
}
return(CallNextHookEx(win_api_hook_id, nCode, wParam, lParam));
}
public void OnKeyPressed(object sender, Interceptor.KeyPressedEventArgs e)
{
// Console.WriteLine(e.Key);
// Console.WriteLine(e.State);
lock (Helpers.locker)
{
e.Handled = true;
// Make sure capslock is always disabled when it is used as a modifier.
if (Options.Instance.key_bindings[Key.Modifier] == Interceptor.Keys.CapsLock)
{
UncheckCapsLock();
}
// Interceptor.KeyState is a mess. Different Keys produce different KeyState when pressed and released.
bool is_e0_key = (e.State & Interceptor.KeyState.E0) != 0;
KeyState key_state;
if (e.State == Interceptor.KeyState.E0 || e.State == Interceptor.KeyState.Down)
{
key_state = KeyState.Down;
}
else if ((e.State & Interceptor.KeyState.Up) != 0)
{
key_state = KeyState.Up;
}
else
{
e.Handled = false;
return;
}
// Hardcoded stop-word is Win+Del.
if (e.Key == Interceptor.Keys.WindowsKey)
{
if (key_state == KeyState.Down)
{
is_win_pressed = true;
}
else if (key_state == KeyState.Up)
{
is_win_pressed = false;
}
}
if (e.Key == Interceptor.Keys.Delete &&
key_state == KeyState.Down && is_win_pressed)
{
Environment.Exit(0);
return;
}
if (key_state == KeyState.Down && read_key_callback != null)
{
read_key_callback(new ReadKeyResult {
is_e0_key = is_e0_key, key = e.Key
});
read_key_callback = null;
e.Handled = true;
return;
}
// Convert |Interceptor.Keys| to |eye_tracking_mouse.Key|
var key_bindings = Options.Instance.key_bindings;
Key key = Key.Unbound;
if (key_bindings.bindings.ContainsValue(e.Key))
{
key = key_bindings.bindings.First(pair =>
{
return(pair.Value == e.Key);
}).Key;
}
if (key == Key.Modifier && key_bindings.is_modifier_e0 != is_e0_key)
{
key = Key.Unbound;
}
e.Handled = receiver.OnKeyPressed(key, key_state, Helpers.IsModifier(e.Key), this);
}
}
