using System.Runtime.InteropServices;
namespace DigitalSystem
{
    public class FuncionesExternas
    {
        [StructLayout(LayoutKind.Sequential)]
        public struct RECT
        {
            public int Left;
            public int Top;
            public int Right;
            public int Bottom;
        }
        public const int VK_CONTROL = 0x11;
        public const byte VK_TAB = 0x09;
        public const byte VK_RETURN = 0x0D;
        public const int KEYEVENTF_KEYDOWN = 0x0000;
        public const int KEYEVENTF_KEYUP = 0x0002;
        public const uint MOUSEEVENTF_MOVE = 0x0001;
        public const uint MOUSEEVENTF_LEFTDOWN = 0x0002;
        public const uint MOUSEEVENTF_LEFTUP = 0x0004;
        public const uint MOUSEEVENTF_RIGHTDOWN = 0x0008;
        public const uint MOUSEEVENTF_RIGHTUP = 0x0010;
        public const uint MOUSEEVENTF_ABSOLUTE = 0x8000;
        public const byte VK_SHIFT = 0x10;
        public const int VK_CAPITAL = 0x14;

        [DllImport("user32.dll")]
        public static extern bool keybd_event(byte bVK, byte bScan, uint dwFlags, uint dwExtraInfo);
        [DllImport("user32.dll")]
        public static extern short VkKeyScan(char ch);

        [DllImport("user32.dll")]
        public static extern IntPtr GetForegroundWindow();

        [DllImport("user32.dll")]
        public static extern IntPtr GetWindowRect(IntPtr hwnd,out RECT lprect );

        [DllImport("user32.dll")]
        public static extern IntPtr BringWindowToTop(IntPtr hwnd);

        [DllImport("user32.dll")]
        public static extern IntPtr SetForegroundWindow(IntPtr hwnd);

        [DllImport("user32.dll")]
        public static extern IntPtr SetCursorPos(int xpos, int ypos);

        [DllImport("user32.dll")]
        public static extern void mouse_event(uint dwFlags,int dx,int dy,uint dwData,UIntPtr dwExtraInfo);

        [DllImport("user32.dll")]
       public static extern short GetKeyState(int nVirtKey);        
    }
}