Question

我需要一些关于DirectInput的帮助，我会告诉我想要做什么。当我只按一个键时，我想让我的程序向游戏发送键组合。例子：我将按“r”，它将按“1”，“3”，“2”，“4”键。我从这里找到了一些代码。但他们并没有完全奏效。

    public static void Send_Key_Hold(short Keycode)
    {
        INPUT[] InputData = new INPUT[1];
        InputData[0].type = 1;
        InputData[0].ki.wScan = Keycode;
        InputData[0].ki.dwFlags = (int)(KEYEVENTF_SCANCODE);

        SendInput(1, InputData, Marshal.SizeOf(InputData[0]));
    }
    public static void Send_Key_Release(short Keycode)
    {
        INPUT[] InputData = new INPUT[1];
        InputData[0].type = 1;
        InputData[0].ki.wScan = Keycode;
        InputData[0].ki.dwFlags = (int)(KEYEVENTF_KEYUP | KEYEVENTF_SCANCODE);

        SendInput(1, InputData, Marshal.SizeOf(InputData[0]));
    }

这是我的代码和我的问题：当我使用Send_Key_Hold时，它只按下游戏中的一个键并且没有按下其他组合键，因为我认为第一个键是持久的。当我一起使用Send_Key_Hold和Send_Key_Release时，它不会按下游戏上的任何按钮。但是在桌面上（我的意思是任何其他应用程序而不是游戏）它按下键。

Answer 1

我在互联网上找到了这个例子。当我尝试做你现在尝试的同样的事情时，我自己进行了测试。

[Flags]
private enum InputType
{
    Mouse = 0,
    Keyboard = 1,
    Hardware = 2
}

[Flags]
private enum KeyEventF
{
    KeyDown = 0x0000,
    ExtendedKey = 0x0001,
    KeyUp = 0x0002,
    Unicode = 0x0004,
    Scancode = 0x0008,
}

[DllImport("user32.dll", SetLastError = true)]
private static extern uint SendInput(uint nInputs, Input[] pInputs, int cbSize);

[DllImport("user32.dll")]
private static extern IntPtr GetMessageExtraInfo();

public static void SendKey(ushort key)
{
    Input[] inputs =
    {
        new Input
        {
            type = (int) InputType.Keyboard,
            u = new InputUnion
            {
                ki = new KeyboardInput
                {
                    wVk = 0,
                    wScan = key,
                    dwFlags = (uint) (KeyEventF.KeyDown | KeyEventF.Scancode),
                    dwExtraInfo = GetMessageExtraInfo()
                }
            }
        }
    };

    SendInput((uint) inputs.Length, inputs, Marshal.SizeOf(typeof (Input)));
}

private struct Input
{
    public int type;
    public InputUnion u;
}

[StructLayout(LayoutKind.Explicit)]
private struct InputUnion
{
    [FieldOffset(0)] public readonly MouseInput mi;
    [FieldOffset(0)] public KeyboardInput ki;
    [FieldOffset(0)] public readonly HardwareInput hi;
}

[StructLayout(LayoutKind.Sequential)]
private struct MouseInput
{
    public readonly int dx;
    public readonly int dy;
    public readonly uint mouseData;
    public readonly uint dwFlags;
    public readonly uint time;
    public readonly IntPtr dwExtraInfo;
}

[StructLayout(LayoutKind.Sequential)]
private struct KeyboardInput
{
    public ushort wVk;
    public ushort wScan;
    public uint dwFlags;
    public readonly uint time;
    public IntPtr dwExtraInfo;
}

[StructLayout(LayoutKind.Sequential)]
private struct HardwareInput
{
    public readonly uint uMsg;
    public readonly ushort wParamL;
    public readonly ushort wParamH;
}

现在使用SendKey(0x14)将T密钥发送到活动窗口（或游戏）。

注意：您需要KeyEventF.Scancode作为标记，否则wScan属性将被忽略！

C＃DirectInput SendInput不影响游戏

1 个答案: