WPF 操作键盘

 1         #region 打开键盘的键

 2         const uint KEYEVENTF_EXTENDEDKEY = 0x1;

 3         const uint KEYEVENTF_KEYUP = 0x2;

 4 

 5         [DllImport("user32.dll")]

 6         static extern short GetKeyState(int nVirtKey);

 7         [DllImport("user32.dll")]

 8         static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, uint dwExtraInfo);

 9 

10         public enum VirtualKeys : byte

11         {

12             VK_NUMLOCK = 0x90, //数字锁定键

13             VK_SCROLL = 0x91,  //滚动锁定

14             VK_CAPITAL = 0x14, //大小写锁定

15             VK_A = 62

16         }

17 

18         //获取key

19         public static bool GetState(VirtualKeys Key)

20         {

21             return (GetKeyState((int)Key) == 1);

22         }

23         //设置key

24         public static void SetState(VirtualKeys Key, bool State)

25         {

26             if (State != GetState(Key))

27             {

28                 keybd_event((byte)Key, 0x45, KEYEVENTF_EXTENDEDKEY | 0, 0);

29                 keybd_event((byte)Key, 0x45, KEYEVENTF_EXTENDEDKEY | KEYEVENTF_KEYUP, 0);

30             }

31         }

32         #endregion

　　　　　　//打开大写键盘
调用:   SetState(VirtualKeys.VK_CAPITAL, true);