我正在将该板用作演示目的的键盘。
总之，总而言之，除了极少数情况之外，其他所有方法都可以正常工作。我使用位于user32.dll中的 SendInput 函数发送击键。
所以我的程序看起来像：
static void Main(string[] args) { Console.Write("Press enter an on the next secont the key combination shift+end will be send"); Console.Read(); Thread.Sleep(1000); SendKeyDown(KeyCode.SHIFT); SendKeyPress(KeyCode.END); SendKeyUp(KeyCode.SHIFT); Console.Read(); Console.Read(); } [DllImport("user32.dll", SetLastError = true)] private static extern uint SendInput(uint numberOfInputs, INPUT[] inputs, int sizeOfInputStructure); /// <summary> /// simulate key press /// </summary> /// <param name="keyCode"></param> public static void SendKeyPress(KeyCode keyCode) { INPUT input = new INPUT { Type = 1 }; input.Data.Keyboard = new KEYBDINPUT() { Vk = (ushort)keyCode, Scan = 0, Flags = 0, Time = 0, ExtraInfo = IntPtr.Zero, }; INPUT input2 = new INPUT { Type = 1 }; input2.Data.Keyboard = new KEYBDINPUT() { Vk = (ushort)keyCode, Scan = 0, Flags = 2, Time = 0, ExtraInfo = IntPtr.Zero }; INPUT[] inputs = new INPUT[] { input, input2 }; if (SendInput(2, inputs, Marshal.SizeOf(typeof(INPUT))) == 0) throw new Exception(); } /// <summary> /// Send a key down and hold it down until sendkeyup method is called /// </summary> /// <param name="keyCode"></param> public static void SendKeyDown(KeyCode keyCode) { INPUT input = new INPUT{ Type = 1 }; input.Data.Keyboard = new KEYBDINPUT(); input.Data.Keyboard.Vk = (ushort)keyCode; input.Data.Keyboard.Scan = 0; input.Data.Keyboard.Flags = 0; input.Data.Keyboard.Time = 0; input.Data.Keyboard.ExtraInfo = IntPtr.Zero; INPUT[] inputs = new INPUT[] { input }; if (SendInput(1, inputs, Marshal.SizeOf(typeof(INPUT))) == 0) { throw new Exception(); } } /// <summary> /// Release a key that is being hold down /// </summary> /// <param name="keyCode"></param> public static void SendKeyUp(KeyCode keyCode) { INPUT input = new INPUT { Type = 1 }; input.Data.Keyboard = new KEYBDINPUT(); input.Data.Keyboard.Vk = (ushort)keyCode; input.Data.Keyboard.Scan = 0; input.Data.Keyboard.Flags = 2; input.Data.Keyboard.Time = 0; input.Data.Keyboard.ExtraInfo = IntPtr.Zero; INPUT[] inputs = new INPUT[] { input }; if (SendInput(1, inputs, Marshal.SizeOf(typeof(INPUT))) == 0) throw new Exception(); }
这是我在网上发现的那些方法使用的结构以及关键代码：（ 请注意，这看起来像很多代码，原因是枚举中有很多关键代码）
/// <summary> /// http://msdn.microsoft.com/en-us/library/windows/desktop/ms646270(v=vs.85).aspx /// </summary> [StructLayout(LayoutKind.Sequential)] internal struct INPUT { public uint Type; public MOUSEKEYBDHARDWAREINPUT Data; } /// <summary> /// http://social.msdn.microsoft.com/Forums/en/csharplanguage/thread/f0e82d6e-4999-4d22-b3d3-32b25f61fb2a /// </summary> [StructLayout(LayoutKind.Explicit)] internal struct MOUSEKEYBDHARDWAREINPUT { [FieldOffset(0)] public HARDWAREINPUT Hardware; [FieldOffset(0)] public KEYBDINPUT Keyboard; [FieldOffset(0)] public MOUSEINPUT Mouse; } /// <summary> /// http://msdn.microsoft.com/en-us/library/windows/desktop/ms646310(v=vs.85).aspx /// </summary> [StructLayout(LayoutKind.Sequential)] internal struct HARDWAREINPUT { public uint Msg; public ushort ParamL; public ushort ParamH; } /// <summary> /// http://msdn.microsoft.com/en-us/library/windows/desktop/ms646310(v=vs.85).aspx /// </summary> [StructLayout(LayoutKind.Sequential)] internal struct KEYBDINPUT { public ushort Vk; public ushort Scan; public uint Flags; public uint Time; public IntPtr ExtraInfo; } /// <summary> /// http://social.msdn.microsoft.com/forums/en-US/netfxbcl/thread/2abc6be8-c593-4686-93d2-89785232dacd /// </summary> [StructLayout(LayoutKind.Sequential)] internal struct MOUSEINPUT { public int X; public int Y; public uint MouseData; public uint Flags; public uint Time; public IntPtr ExtraInfo; } public enum KeyCode : ushort { #region Media /// <summary> /// Next track if a song is playing /// </summary> MEDIA_NEXT_TRACK = 0xb0, /// <summary> /// Play pause /// </summary> MEDIA_PLAY_PAUSE = 0xb3, /// <summary> /// Previous track /// </summary> MEDIA_PREV_TRACK = 0xb1, /// <summary> /// Stop /// </summary> MEDIA_STOP = 0xb2, #endregion #region math /// <summary>Key "+"</summary> ADD = 0x6b, /// <summary> /// "*" key /// </summary> MULTIPLY = 0x6a, /// <summary> /// "/" key /// </summary> DIVIDE = 0x6f, /// <summary> /// Subtract key "-" /// </summary> SUBTRACT = 0x6d, #endregion #region Browser /// <summary> /// Go Back /// </summary> BROWSER_BACK = 0xa6, /// <summary> /// Favorites /// </summary> BROWSER_FAVORITES = 0xab, /// <summary> /// Forward /// </summary> BROWSER_FORWARD = 0xa7, /// <summary> /// Home /// </summary> BROWSER_HOME = 0xac, /// <summary> /// Refresh /// </summary> BROWSER_REFRESH = 0xa8, /// <summary> /// browser search /// </summary> BROWSER_SEARCH = 170, /// <summary> /// Stop /// </summary> BROWSER_STOP = 0xa9, #endregion #region Numpad numbers /// <summary> /// /// </summary> NUMPAD0 = 0x60, /// <summary> /// /// </summary> NUMPAD1 = 0x61, /// <summary> /// /// </summary> NUMPAD2 = 0x62, /// <summary> /// /// </summary> NUMPAD3 = 0x63, /// <summary> /// /// </summary> NUMPAD4 = 100, /// <summary> /// /// </summary> NUMPAD5 = 0x65, /// <summary> /// /// </summary> NUMPAD6 = 0x66, /// <summary> /// /// </summary> NUMPAD7 = 0x67, /// <summary> /// /// </summary> NUMPAD8 = 0x68, /// <summary> /// /// </summary> NUMPAD9 = 0x69, #endregion #region Fkeys /// <summary> /// F1 /// </summary> F1 = 0x70, /// <summary> /// F10 /// </summary> F10 = 0x79, /// <summary> /// /// </summary> F11 = 0x7a, /// <summary> /// /// </summary> F12 = 0x7b, /// <summary> /// /// </summary> F13 = 0x7c, /// <summary> /// /// </summary> F14 = 0x7d, /// <summary> /// /// </summary> F15 = 0x7e, /// <summary> /// /// </summary> F16 = 0x7f, /// <summary> /// /// </summary> F17 = 0x80, /// <summary> /// /// </summary> F18 = 0x81, /// <summary> /// /// </summary> F19 = 130, /// <summary> /// /// </summary> F2 = 0x71, /// <summary> /// /// </summary> F20 = 0x83, /// <summary> /// /// </summary> F21 = 0x84, /// <summary> /// /// </summary> F22 = 0x85, /// <summary> /// /// </summary> F23 = 0x86, /// <summary> /// /// </summary> F24 = 0x87, /// <summary> /// /// </summary> F3 = 0x72, /// <summary> /// /// </summary> F4 = 0x73, /// <summary> /// /// </summary> F5 = 0x74, /// <summary> /// /// </summary> F6 = 0x75, /// <summary> /// /// </summary> F7 = 0x76, /// <summary> /// /// </summary> F8 = 0x77, /// <summary> /// /// </summary> F9 = 120, #endregion #region Other /// <summary> /// /// </summary> OEM_1 = 0xba, /// <summary> /// /// </summary> OEM_102 = 0xe2, /// <summary> /// /// </summary> OEM_2 = 0xbf, /// <summary> /// /// </summary> OEM_3 = 0xc0, /// <summary> /// /// </summary> OEM_4 = 0xdb, /// <summary> /// /// </summary> OEM_5 = 220, /// <summary> /// /// </summary> OEM_6 = 0xdd, /// <summary> /// /// </summary> OEM_7 = 0xde, /// <summary> /// /// </summary> OEM_8 = 0xdf, /// <summary> /// /// </summary> OEM_CLEAR = 0xfe, /// <summary> /// /// </summary> OEM_COMMA = 0xbc, /// <summary> /// /// </summary> OEM_MINUS = 0xbd, /// <summary> /// /// </summary> OEM_PERIOD = 190, /// <summary> /// /// </summary> OEM_PLUS = 0xbb, #endregion #region KEYS /// <summary> /// /// </summary> KEY_0 = 0x30, /// <summary> /// /// </summary> KEY_1 = 0x31, /// <summary> /// /// </summary> KEY_2 = 50, /// <summary> /// /// </summary> KEY_3 = 0x33, /// <summary> /// /// </summary> KEY_4 = 0x34, /// <summary> /// /// </summary> KEY_5 = 0x35, /// <summary> /// /// </summary> KEY_6 = 0x36, /// <summary> /// /// </summary> KEY_7 = 0x37, /// <summary> /// /// </summary> KEY_8 = 0x38, /// <summary> /// /// </summary> KEY_9 = 0x39, /// <summary> /// /// </summary> KEY_A = 0x41, /// <summary> /// /// </summary> KEY_B = 0x42, /// <summary> /// /// </summary> KEY_C = 0x43, /// <summary> /// /// </summary> KEY_D = 0x44, /// <summary> /// /// </summary> KEY_E = 0x45, /// <summary> /// /// </summary> KEY_F = 70, /// <summary> /// /// </summary> KEY_G = 0x47, /// <summary> /// /// </summary> KEY_H = 0x48, /// <summary> /// /// </summary> KEY_I = 0x49, /// <summary> /// /// </summary> KEY_J = 0x4a, /// <summary> /// /// </summary> KEY_K = 0x4b, /// <summary> /// /// </summary> KEY_L = 0x4c, /// <summary> /// /// </summary> KEY_M = 0x4d, /// <summary> /// /// </summary> KEY_N = 0x4e, /// <summary> /// /// </summary> KEY_O = 0x4f, /// <summary> /// /// </summary> KEY_P = 80, /// <summary> /// /// </summary> KEY_Q = 0x51, /// <summary> /// /// </summary> KEY_R = 0x52, /// <summary> /// /// </summary> KEY_S = 0x53, /// <summary> /// /// </summary> KEY_T = 0x54, /// <summary> /// /// </summary> KEY_U = 0x55, /// <summary> /// /// </summary> KEY_V = 0x56, /// <summary> /// /// </summary> KEY_W = 0x57, /// <summary> /// /// </summary> KEY_X = 0x58, /// <summary> /// /// </summary> KEY_Y = 0x59, /// <summary> /// /// </summary> KEY_Z = 90, #endregion #region volume /// <summary> /// Decrese volume /// </summary> VOLUME_DOWN = 0xae, /// <summary> /// Mute volume /// </summary> VOLUME_MUTE = 0xad, /// <summary> /// Increase volue /// </summary> VOLUME_UP = 0xaf, #endregion /// <summary> /// Take snapshot of the screen and place it on the clipboard /// </summary> SNAPSHOT = 0x2c, /// <summary>Send right click from keyboard "key that is 2 keys to the right of space bar"</summary> RightClick = 0x5d, /// <summary> /// Go Back or delete /// </summary> BACKSPACE = 8, /// <summary> /// Control + Break "When debuging if you step into an infinite loop this will stop debug" /// </summary> CANCEL = 3, /// <summary> /// Caps lock key to send cappital letters /// </summary> CAPS_LOCK = 20, /// <summary> /// Ctlr key /// </summary> CONTROL = 0x11, /// <summary> /// Alt key /// </summary> ALT = 18, /// <summary> /// "." key /// </summary> DECIMAL = 110, /// <summary> /// Delete Key /// </summary> DELETE = 0x2e, /// <summary> /// Arrow down key /// </summary> DOWN = 40, /// <summary> /// End key /// </summary> END = 0x23, /// <summary> /// Escape key /// </summary> ESC = 0x1b, /// <summary> /// Home key /// </summary> HOME = 0x24, /// <summary> /// Insert key /// </summary> INSERT = 0x2d, /// <summary> /// Open my computer /// </summary> LAUNCH_APP1 = 0xb6, /// <summary> /// Open calculator /// </summary> LAUNCH_APP2 = 0xb7, /// <summary> /// Open default email in my case outlook /// </summary> LAUNCH_MAIL = 180, /// <summary> /// Opend default media player (itunes, winmediaplayer, etc) /// </summary> LAUNCH_MEDIA_SELECT = 0xb5, /// <summary> /// Left control /// </summary> LCONTROL = 0xa2, /// <summary> /// Left arrow /// </summary> LEFT = 0x25, /// <summary> /// Left shift /// </summary> LSHIFT = 160, /// <summary> /// left windows key /// </summary> LWIN = 0x5b, /// <summary> /// Next "page down" /// </summary> PAGEDOWN = 0x22, /// <summary> /// Num lock to enable typing numbers /// </summary> NUMLOCK = 0x90, /// <summary> /// Page up key /// </summary> PAGE_UP = 0x21, /// <summary> /// Right control /// </summary> RCONTROL = 0xa3, /// <summary> /// Return key /// </summary> ENTER = 13, /// <summary> /// Right arrow key /// </summary> RIGHT = 0x27, /// <summary> /// Right shift /// </summary> RSHIFT = 0xa1, /// <summary> /// Right windows key /// </summary> RWIN = 0x5c, /// <summary> /// Shift key /// </summary> SHIFT = 0x10, /// <summary> /// Space back key /// </summary> SPACE_BAR = 0x20, /// <summary> /// Tab key /// </summary> TAB = 9, /// <summary> /// Up arrow key /// </summary> UP = 0x26, }
所以现在我的问题是， 为什么当我发送该组合键时，我得到的结果与在真实键盘上获得的结果不同？98％的东西都起作用。例如，我能够做到：
SendKeyDown(KeyCode.SHIFT); SendKeyPress(KeyCode.KEY_A ); SendKeyUp(KeyCode.SHIFT);
这将发送大写字母A。
我应该使用其他图书馆吗？
The reason why I like this approach is because I do not know in advance if the user will send a key combination For example in windows forms If I do:
System.Windows.Forms.SendKeys.SendWait("+{end}"); that will send shift + end but maybe the user just wants to send shift…
System.Windows.Forms.SendKeys.SendWait("+{end}");
You aren’t setting the flags and scan fields, depending on the keystrokes desired, you will need to set these correctly to get the OS to recognize the keys correctly.
You might consider using the Input Simulator library, since it already does what you want and you don’t have to recreate the wheel. Just make sure to look through the forums as there are some good patches in there that need to be set, since the author abandoned the project in 2009. It’s a good library nonetheless.
