using System.Runtime.InteropServices;

namespace Domain {
	public static class Win32API {
		private static bool _cTrencadaWasPressed;
		private static bool _cTrencadaPressed;
		//VK_OEM_2 = 0xBF | cedilla
		//https://learn.microsoft.com/en-us/windows/win32/inputdev/virtual-key-codes
		private const int Key = 0xBF;

		public static void UpdateInput() {
			_cTrencadaWasPressed = _cTrencadaPressed;
			if (_cTrencadaPressed && GetAsyncKeyState(Key) == 0) {
				_cTrencadaPressed = false;
				return;
			}
			if (!_cTrencadaPressed && GetAsyncKeyState(Key) != 0) {
				_cTrencadaPressed = true;
			}
		}

		public static bool CTrencadaDown() {
			return _cTrencadaPressed && !_cTrencadaWasPressed;
		}

		[DllImport("User32.dll")]
		private static extern short GetAsyncKeyState(int vKey);
	}
}