public IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr lParam) { bool fEatKeyStroke = false; var wparamTyped = wParam.ToInt32(); if (Enum.IsDefined(typeof(KeyboardState), wparamTyped)) { object o = Marshal.PtrToStructure(lParam, typeof(LowLevelKeyboardInputEvent)); LowLevelKeyboardInputEvent p = (LowLevelKeyboardInputEvent)o; var eventArguments = new GlobalKeyboardHookEventArgs(p, (KeyboardState)wparamTyped); EventHandler <GlobalKeyboardHookEventArgs> handler = KeyboardPressed; handler?.Invoke(this, eventArguments); fEatKeyStroke = eventArguments.Handled; } return(fEatKeyStroke ? (IntPtr)1 : CallNextHookEx(IntPtr.Zero, nCode, wParam, lParam)); }
private void KeyPressed(object sender, GlobalKeyboardHookEventArgs e) { var pressedKey = (Keys)e.KeyboardData.VirtualCode; if (pressedKey == Keys.LShiftKey) { _shiftPressed = e.KeyboardState == KeyboardState.KeyDown; return; } if (e.KeyboardState != KeyboardState.KeyDown) { return; } char resultSymbol; if (pressedKey.TryToChar(_shiftPressed, out resultSymbol)) { AppendBuffer(resultSymbol, Strategy); NewSymbol?.Invoke(this, new NewSymbolEventArgs(resultSymbol)); } CheckBuffer(Strategy, pressedKey); }