C# 单击指定的客户端区域

单击

无效-我不知道原因，也找不到解决方案：(

例如，

Click（150215）

应将鼠标移动到客户端区域并在那里单击

    [DllImport("user32.dll")]
    private static extern bool ScreenToClient(IntPtr hWnd, ref Point lpPoint);

    [DllImport("user32", SetLastError = true)]
    private static extern int SetCursorPos(int x, int y);

    static void MouseMove(int x, int y)
    {
        Point p = new Point(x * -1, y * -1);
        ScreenToClient(hWnd, ref p);
        p = new Point(p.X * -1, p.Y * -1);
        SetCursorPos(p.X, p.Y);
    }

    static void Click(int x, int y)
    {
        MouseMove(x, y);
        SendMessage(hWnd, WM_LBUTTONDOWN, (IntPtr)0x1, new IntPtr(y * 0x10000 + x));
        SendMessage(hWnd, WM_LBUTTONUP, (IntPtr)0x1, new IntPtr(y * 0x10000 + x));
    }

编辑： 以下方法可行，但我认为“更先进”。

当然，我可以使用

mouse\u event

，但我希望看到SendMessage（）的解决方案

过了一会儿，我发现另一个方法是通过

SendInput

使用

MouseInput

，但它很长：p

它能缩小吗

        [Flags]
    enum MouseEventFlags : uint
    {
        MOUSEEVENTF_MOVE = 0x0001,
        MOUSEEVENTF_LEFTDOWN = 0x0002,
        MOUSEEVENTF_LEFTUP = 0x0004,
        MOUSEEVENTF_RIGHTDOWN = 0x0008,
        MOUSEEVENTF_RIGHTUP = 0x0010,
        MOUSEEVENTF_MIDDLEDOWN = 0x0020,
        MOUSEEVENTF_MIDDLEUP = 0x0040,
        MOUSEEVENTF_XDOWN = 0x0080,
        MOUSEEVENTF_XUP = 0x0100,
        MOUSEEVENTF_WHEEL = 0x0800,
        MOUSEEVENTF_VIRTUALDESK = 0x4000,
        MOUSEEVENTF_ABSOLUTE = 0x8000
    }

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

    [StructLayout(LayoutKind.Explicit)]
    struct MouseKeybdhardwareInputUnion
    {
        [FieldOffset(0)]
        public MouseInputData mi;
    }
    struct MouseInputData
    {
        public int dx;
        public int dy;
        public uint mouseData;
        public MouseEventFlags dwFlags;
        public uint time;
        public IntPtr dwExtraInfo;
    }
    [StructLayout(LayoutKind.Sequential)]
    struct INPUT
    {
        public SendInputEventType type;
        public MouseKeybdhardwareInputUnion mkhi;
    }
    enum SendInputEventType : int
    {
        InputMouse,
    }

    static void Click(int x, int y)
    {
        INPUT mouseInput = new INPUT();
        mouseInput.type = SendInputEventType.InputMouse;
        mouseInput.mkhi.mi.dx = x;
        mouseInput.mkhi.mi.dy = y;
        mouseInput.mkhi.mi.mouseData = 0;

        MouseMove(x, y);
        mouseInput.mkhi.mi.dwFlags = MouseEventFlags.MOUSEEVENTF_LEFTDOWN;
        SendInput(1, ref mouseInput, Marshal.SizeOf(new INPUT()));

        mouseInput.mkhi.mi.dwFlags = MouseEventFlags.MOUSEEVENTF_LEFTUP;
        SendInput(1, ref mouseInput, Marshal.SizeOf(new INPUT()));
    }

---

虽然我还没有调查您描述的确切问题，但我建议您了解一下哪些是Windows API调用，旨在实现您描述的功能

mouse\u event

是较旧版本的调用，

SendInput

较新，通过支持多个输入事件取代了

mouse\u input

。这两种方法都可以在p/Invoke.net上的以下URL中找到：

• 鼠标事件

  ：

• SendInput

  ：

---

谢谢，我已经有了鼠标事件方法。你认为

SendInput

比简单的

SendMessage

更好（性能、速度）吗？请查看我的编辑，告诉我它是否可以缩小：）将

WM\u LBUTTONDOWN

发送到任何你不拥有的窗口似乎很容易出错。我找不到任何实际的文档建议以这种方式使用

WM_LBUTTONDOWN

，我知道

mouse_event

和

SendInput

是受支持的方式。如果您担心这样一个调用的性能，那么必须对其进行基准测试。虽然

SendInput

很冗长，但大部分都是P/Invoke签名。好吧，无论如何，我找到了另外两种方法来解决这个问题：）

        [Flags]
    enum MouseEventFlags : uint
    {
        MOUSEEVENTF_MOVE = 0x0001,
        MOUSEEVENTF_LEFTDOWN = 0x0002,
        MOUSEEVENTF_LEFTUP = 0x0004,
        MOUSEEVENTF_RIGHTDOWN = 0x0008,
        MOUSEEVENTF_RIGHTUP = 0x0010,
        MOUSEEVENTF_MIDDLEDOWN = 0x0020,
        MOUSEEVENTF_MIDDLEUP = 0x0040,
        MOUSEEVENTF_XDOWN = 0x0080,
        MOUSEEVENTF_XUP = 0x0100,
        MOUSEEVENTF_WHEEL = 0x0800,
        MOUSEEVENTF_VIRTUALDESK = 0x4000,
        MOUSEEVENTF_ABSOLUTE = 0x8000
    }

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

    [StructLayout(LayoutKind.Explicit)]
    struct MouseKeybdhardwareInputUnion
    {
        [FieldOffset(0)]
        public MouseInputData mi;
    }
    struct MouseInputData
    {
        public int dx;
        public int dy;
        public uint mouseData;
        public MouseEventFlags dwFlags;
        public uint time;
        public IntPtr dwExtraInfo;
    }
    [StructLayout(LayoutKind.Sequential)]
    struct INPUT
    {
        public SendInputEventType type;
        public MouseKeybdhardwareInputUnion mkhi;
    }
    enum SendInputEventType : int
    {
        InputMouse,
    }

    static void Click(int x, int y)
    {
        INPUT mouseInput = new INPUT();
        mouseInput.type = SendInputEventType.InputMouse;
        mouseInput.mkhi.mi.dx = x;
        mouseInput.mkhi.mi.dy = y;
        mouseInput.mkhi.mi.mouseData = 0;

        MouseMove(x, y);
        mouseInput.mkhi.mi.dwFlags = MouseEventFlags.MOUSEEVENTF_LEFTDOWN;
        SendInput(1, ref mouseInput, Marshal.SizeOf(new INPUT()));

        mouseInput.mkhi.mi.dwFlags = MouseEventFlags.MOUSEEVENTF_LEFTUP;
        SendInput(1, ref mouseInput, Marshal.SizeOf(new INPUT()));
    }