我在用这个板作为演示目的的键盘。
无论如何，长话短说，除了极少数情况外，一切正常。我发送击键发送输入函数位于 user32.dll 中。
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();
}
以下是我在网上找到的这些方法使用的结构以及关键代码：（请注意，它看起来像很多代码，因为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，我没有得到与在真实键盘上执行相同的结果？ 98% 的事情都有效。例如我能够这样做：
SendKeyDown(KeyCode.SHIFT);
SendKeyPress(KeyCode.KEY_A );
SendKeyUp(KeyCode.SHIFT);
这将发送一个大写字母 A。
我应该使用不同的库吗？
我喜欢这种方法的原因是因为我事先不知道用户是否会发送组合键例如在 Windows 窗体中如果我这样做：
System.Windows.Forms.SendKeys.SendWait("+{end}");这将发送shift + end，但也许用户只想发送shift...
