实现键盘和鼠标的模拟

实现

using System;
using System.Runtime.InteropServices;
using System.Text;

namespace ConsoleApplication8{
    class Class1{
        [STAThread]
        static void Main(string[] args){
            // Display current status of keys.
            Console.WriteLine("**BEFORE**\r\nCAP: {0}\r\nSCR: {1}\r\nNUM: {2}",
                Keyboard.GetState(VirtualKeys.VK_CAPITAL)?"ON":"OFF",
                Keyboard.GetState(VirtualKeys.VK_SCROLL)?"ON":"OFF",
                Keyboard.GetState(VirtualKeys.VK_NUMLOCK)?"ON":"OFF"
            );

            //Toggle all the keys:
            Keyboard.SetState(
                VirtualKeys.VK_CAPITAL, !Keyboard.GetState(VirtualKeys.VK_CAPITAL)
            );

            Keyboard.SetState(
                VirtualKeys.VK_SCROLL, !Keyboard.GetState(VirtualKeys.VK_SCROLL)
            );

            Keyboard.SetState(
                VirtualKeys.VK_NUMLOCK, !Keyboard.GetState(VirtualKeys.VK_NUMLOCK)
            );
            // Display new status of keys.
            Console.WriteLine("\r\n**AFTER**\r\nCAP: {0}\r\nSCR: {1}\r\nNUM: {2}",
                Keyboard.GetState(VirtualKeys.VK_CAPITAL)?"ON":"OFF",
                Keyboard.GetState(VirtualKeys.VK_SCROLL)?"ON":"OFF",
                Keyboard.GetState(VirtualKeys.VK_NUMLOCK)?"ON":"OFF"
            );
            Console.ReadLine();
        }
    }

    public enum VirtualKeys: byte{
        VK_NUMLOCK = 0x90,
        VK_SCROLL = 0x91,
        VK_CAPITAL = 0x14
    }

    class Keyboard{
        const uint KEYEVENTF_EXTENDEDKEY = 0x1;
        const uint KEYEVENTF_KEYUP = 0x2;

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

        [DllImport("user32.dll")]
        static extern void keybd_event(
            byte bVk,
            byte bScan,
            uint dwFlags,
            uint dwExtraInfo
        );

        public static bool GetState(VirtualKeys Key){
            return (GetKeyState((int)Key)==1);
        }

        public static void SetState(VirtualKeys Key, bool State){
            if(State!=GetState(Key)){
                keybd_event(
                    (byte)Key,
                    0x45,
                    KEYEVENTF_EXTENDEDKEY | 0,
                    0
                );
                keybd_event(
                    (byte)Key,
                    0x45,
                    KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP,
                    0
                );
            }
        }
    }
}

//and you can do mouse_event operation like it.

对于模拟键盘，除了利用keybd_event，更简单的是使用sendkeys，而且keybd_event已经被sendinput取代。

具体代码参考

请问，用C#如何实现模拟键盘输入
http://expert.csdn.net/Expert/topic/1055/1055110.xml?temp=.1404993

对于模拟鼠标，只好用SendInput，
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/WinUI/WindowsUserInterface/UserInput/KeyboardInput/KeyboardInputReference/KeyboardInputFunctions/SendInput.asp

具体代码参考:

http://groups.google.com/groups?hl=zh-CN&lr=&ie=UTF-8&oe=UTF-8&threadm=665201c200e8%24e3a1f550%2435ef2ecf%40TKMSFTNGXA11&rnum=3&prev=/groups%3Fq%3Dsendinput%2Bmouse%2Bc%2523%26hl%3Dzh-CN%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26selm%3D665201c200e8%2524e3a1f550%252435ef2ecf%2540TKMSFTNGXA11%26rnum%3D3