自动输入QQ密码

想做个登陆器，一来，不用保存密码到本地防止他人使用，二来，也省去输入密码

输入QQ号就不说了，简单得很，主要是密码，用sendmessage或postmessage是绝对行不通的，只好模拟键盘了 用API   SendInput

关键代码贴在这里，给自己备份

private static string Lcase_s = "abcdefghijklmnopqrstuvwxyz`1234567890-=\\[];',./";
        private static string Ucase_s = "ABCDEFGHIJKLMNOPQRSTUVWXYZ~!@#$%^&*()_+|{}:\"<>?";
        private static short[] KeyboardConstaint = new short[] { 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90
            ,0xC0, 49, 50, 51, 52, 53, 54, 55, 56, 57, 48 
            ,0xBD,0xBB,0xDC,0xDB,0xDD,0xBA,0xDE,0xBC,0xBE,0xBF};
        
        

        public static  bool  SendKeyCommand(string  key,IntPtr hwnd)
        {
            for (int i = 0; i < key.Length; i++)
            {
                string ch = key.Substring(i,1);
                int index = Lcase_s.IndexOf(ch);
                //是否在正常下
                if (index >= 0)
                {
                    short mykey = KeyboardConstaint[index];
                    Thread.Sleep(1);
                    SetFocus(hwnd);
                    SendKeyDown(mykey);
                    SendKeyUp(mykey);
                }
                else
                {
                    index = Ucase_s.IndexOf(ch);
                    if (index >= 0)
                    {

                        short mykey = KeyboardConstaint[index];
                        Thread.Sleep(1);
                        SetFocus(hwnd);
                        SendKeyDown(VK_SHIFT);                        
                        SendKeyDown(mykey);
                        SendKeyUp(mykey);
                        SendKeyUp(VK_SHIFT);
                    }
                    else
                    {
                        return false;
                    }
                }

            }
            return true;

        }

        public static void SendKeyDown(short key)
        {
             
            Input[] input = new Input[1];
            input[0].type = INPUT.KEYBOARD;
            input[0].ki.wVk = key;
            input[0].ki.time = GetTickCount();

            if (SendInput((uint)input.Length, input, Marshal.SizeOf(input[0])) < input.Length)
            {
                throw new Win32Exception(Marshal.GetLastWin32Error());
            }
        }

        public static void SendKeyUp(short key)
        {
            Input[] input = new Input[1];
            input[0].type = INPUT.KEYBOARD;
            input[0].ki.wVk = key;
            input[0].ki.dwFlags = KEYEVENTF_KEYUP;
            input[0].ki.time = GetTickCount();

            if (SendInput((uint)input.Length, input, Marshal.SizeOf(input[0])) < input.Length)
            {
                throw new Win32Exception(Marshal.GetLastWin32Error());
            }
        }