c#在游戏应用中的关键

Question

我想做一个c#应用程序，这将控制一个游戏。我想做的是，例如:按住A键150毫秒，按住左箭头500毫秒，等等。我搜索了很多，我发现了以下代码。我的程序首先以游戏为目标，然后再拿着按键。

I'm holding the keys this way:
Keyboard.HoldKey(Keys.Left);
Thread.sleep(500);
Keyboard.ReleaseKey(Keys.Left);

下面是Keyboard类:

public class Keyboard
 {
    public Keyboard()
    {
    }
    [StructLayout(LayoutKind.Explicit, Size = 28)]
    public struct Input
    {
        [FieldOffset(0)]
        public uint type;
        [FieldOffset(4)]
        public KeyboardInput ki;
    }
    public struct KeyboardInput
    {
        public ushort wVk;
        public ushort wScan;
        public uint dwFlags;
        public long time;
        public uint dwExtraInfo;
    }
    const int KEYEVENTF_KEYUP = 0x0002;
    const int INPUT_KEYBOARD = 1;
    [DllImport("user32.dll")]
    public static extern int SendInput(uint cInputs, ref Input inputs, int cbSize);
    [DllImport("user32.dll")]
    static extern short GetKeyState(int nVirtKey);
    [DllImport("user32.dll")]
    static extern ushort MapVirtualKey(int wCode, int wMapType);

    public static bool IsKeyDown(Keys key)
    {
        return (GetKeyState((int)key) & -128) == -128;
    }
    public static void HoldKey(Keys vk)
    {
        ushort nScan = MapVirtualKey((ushort)vk, 0);
        Input input = new Input();
        input.type = INPUT_KEYBOARD;
        input.ki.wVk = (ushort)vk;
        input.ki.wScan = nScan;
        input.ki.dwFlags = 0;
        input.ki.time = 0;
        input.ki.dwExtraInfo = 0;
        SendInput(1, ref input, Marshal.SizeOf(input)).ToString();
    }
    public static void ReleaseKey(Keys vk)
    {
        ushort nScan = MapVirtualKey((ushort)vk, 0);
        Input input = new Input();
        input.type = INPUT_KEYBOARD;
        input.ki.wVk = (ushort)vk;
        input.ki.wScan = nScan;
        input.ki.dwFlags = KEYEVENTF_KEYUP;
        input.ki.time = 0;
        input.ki.dwExtraInfo = 0;
        SendInput(1, ref input, Marshal.SizeOf(input));
    }
    public static void PressKey(Keys vk)
    {
        HoldKey(vk);
        ReleaseKey(vk);
    }
}

和它的工作在记事本/浏览器等，但它不工作在任何游戏，无论是全屏或窗口模式。你能帮我弄清楚如何在全屏应用程序/游戏中按住键吗?谢谢!

Answer 1

"按住A键150ms，按住左箭头500ms"

查看是否成功:

        Keyboard.HoldKey((byte)Keys.A, 150);
        Keyboard.HoldKey((byte)Keys.Left, 500);

使用:

public class Keyboard
{
    [DllImport("user32.dll", SetLastError = true)]
    static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo);
    const int KEY_DOWN_EVENT = 0x0001; //Key down flag
    const int KEY_UP_EVENT = 0x0002; //Key up flag
    public static void HoldKey(byte key, int duration)
    {
        int totalDuration = 0;
        while (totalDuration < duration)
        {
            keybd_event(key, 0, KEY_DOWN_EVENT, 0);
            keybd_event(key, 0, KEY_UP_EVENT, 0);
            System.Threading.Thread.Sleep(PauseBetweenStrokes);
            totalDuration += PauseBetweenStrokes;
        }
    }
}

Answer 2

你可以让它工作，这是很好的按住键:

    public class Keyboard
{
    const int PauseBetweenStrokes = 50;
    [DllImport("user32.dll", SetLastError = true)]
    static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo);
    const int KEY_DOWN_EVENT = 0x0001; //Key down flag
    const int KEY_UP_EVENT = 0x0002; //Key up flag
    public static void HoldKey(byte key, int duration)
    {
        keybd_event(key, 0, KEY_DOWN_EVENT, 0);
        System.Threading.Thread.Sleep(duration);
        keybd_event(key, 0, KEY_UP_EVENT, 0);
    }
}

Answer 3

我使用了Windown API和SendInput方法。

Answer 4

如果将Keyboard类定义为:

public static class Keyboard
    {   
        
        [DllImport("user32.dll", SetLastError = true)]
        static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo);
        
        public static void Delay(int delay)
        {
            System.Threading.Thread.Sleep(delay);
        }
        
        public static void KeyDown(KEYCODE keycode)
        {
            keybd_event((byte)keycode, 0x0, 0, 0);// presses
        }
        
        public static void KeyPress(KEYCODE keycode, int delay = 0)
        {
            keybd_event((byte)keycode, 0x0, 0, 0);// presses
            System.Threading.Thread.Sleep(delay);
            keybd_event((byte)keycode, 0x0, 2, 0); //releases
        }
        
        public static void KeyUp(KEYCODE keycode)
        {
            keybd_event((byte)keycode, 0, 2, 0); //release
        }
        
        public static void Type(string message)
        {
            System.Windows.Forms.SendKeys.SendWait(message);
        }
            
    }

键码为

public enum KEYCODE {
    VK_A = 0x41, VK_B = 0x42, VK_C = 0x43, VK_D = 0x44, VK_E = 0x45, VK_F = 0x46, VK_G = 0x47, 
    VK_H = 0x48, VK_I = 0x49, VK_J = 0x4A, VK_K = 0x4B, VK_L = 0x4C, VK_M = 0x4D, VK_N = 0x4E, VK_O = 0x4F,
    VK_P = 0x50, VK_Q = 0x51, VK_R = 0x52, VK_S = 0x53, VK_T = 0x54, VK_U = 0x55, VK_V = 0x56, VK_W = 0x57, 
    VK_X = 0x58, VK_Y = 0x59, VK_Z = 0x5A, VK_LSHIFT = 0xA0, VK_RSHIFT = 0xA1, VK_LCONTROL = 0xA2, VK_RCONTROL = 0xA3
}

可以执行如下命令:

Keyboard.KeyDown(KEYCODE.VK_LSHIFT);
    Keyboard.KeyPress(KEYCODE.VK_V);
Keyboard.KeyUp(KEYCODE.VK_LSHIFT);
    Keyboard.KeyPress(KEYCODE.VK_I);
    Keyboard.KeyPress(KEYCODE.VK_N);
    Keyboard.KeyPress(KEYCODE.VK_O);
    Keyboard.KeyPress(KEYCODE.VK_D);

并且由于按下了shift键，它将打印Vinod，使V大写。但是如果你想发送多个按键，比如输入文本，你可以使用Keyboard.Type()来代替，比如

Keyboard.Type("+vino+d");

，它将打印VinoD，使V和D大写，更多帮助请参阅这里的文档

我甚至写了一个叫做Robot.cs的东西，它有键盘，鼠标和;过程自动化。