以编程方式在另一个窗口中单击鼠标

Question

是否可以以编程方式单击另一个窗口中的某个位置，而无需将鼠标移动到该位置，即使该窗口不在顶部？我想向另一个窗口发送一种消息以模拟鼠标单击某个位置。

我尝试使用 PostMessage 来完成此操作：

PostMessage(WindowHandle, 0x201, IntPtr.Zero, CreateLParam(300,300));
PostMessage(WindowHandle, 0x202, IntPtr.Zero, CreateLParam(300,300));

我这样创建了 CreateLParam 函数：

private static IntPtr CreateLParam(int LoWord, int HiWord)
{
     return (IntPtr)((HiWord << 16) | (LoWord & 0xffff));
}

问题是窗口被锁定在他的位置。我认为我的应用程序点击了 (1,1) 坐标。有人可以帮我解决这个问题吗？

编辑： 这是 PostMessage：

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("user32.dll")]
public static extern bool PostMessage(IntPtr WindowHandle, int Msg, IntPtr wParam, IntPtr lParam);

而0x201和0x202分别是WM_LBUTTONDOWN和WM_LBUTTONUP。

Answer 1

您不能通过发送消息来做到这一点，而是使用 SendInput Windows API。

调用方法ClickOnPoint，这是一个来自表单点击事件的例子，所以this.handle是表单句柄，注意这些是窗口上的客户端坐标，女巫句柄是发送的，你可以很容易地改变这个并发送屏幕坐标，并且在那个如果您不需要下面的句柄或 ClientToScreen 调用。

ClickOnPoint(this.Handle, new Point(375, 340));

更新：现在使用 SendInput，tnx Tom。

顺便说一句。我只使用了此示例所需的声明，还有一个不错的库：Windows Input Simulator (C# SendInput Wrapper - Simulate Keyboard and Mouse)

  public class ClickOnPointTool
  {

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

    [DllImport("user32.dll")]
    internal static extern uint SendInput(uint nInputs, [MarshalAs(UnmanagedType.LPArray), In] INPUT[] pInputs,  int cbSize);

#pragma warning disable 649
    internal struct INPUT
    {
      public UInt32 Type;
      public MOUSEKEYBDHARDWAREINPUT Data;
    }

    [StructLayout(LayoutKind.Explicit)]
    internal struct MOUSEKEYBDHARDWAREINPUT
    {
      [FieldOffset(0)]
      public MOUSEINPUT Mouse;
    }

    internal struct MOUSEINPUT
    {
      public Int32 X;
      public Int32 Y;
      public UInt32 MouseData;
      public UInt32 Flags;
      public UInt32 Time;
      public IntPtr ExtraInfo;
    }

#pragma warning restore 649


    public static void ClickOnPoint(IntPtr wndHandle , Point clientPoint)
    {
      var oldPos = Cursor.Position;

      /// get screen coordinates
      ClientToScreen(wndHandle, ref clientPoint);

      /// set cursor on coords, and press mouse
      Cursor.Position = new Point(clientPoint.X, clientPoint.Y);

      var inputMouseDown = new INPUT();
      inputMouseDown.Type = 0; /// input type mouse
      inputMouseDown.Data.Mouse.Flags = 0x0002; /// left button down

      var inputMouseUp = new INPUT();
      inputMouseUp.Type = 0; /// input type mouse
      inputMouseUp.Data.Mouse.Flags = 0x0004; /// left button up

      var inputs = new INPUT[] { inputMouseDown, inputMouseUp };
      SendInput((uint)inputs.Length, inputs, Marshal.SizeOf(typeof(INPUT)));

      /// return mouse 
      Cursor.Position = oldPos;
    }

  }

Answer 2

我在过去发现了一种向 Windows Media Player 发送消息的方法 所以我用它来模拟我想要的应用程序中的点击！

使用this class（下面的代码）找到窗口并发送您想要的消息！

using System;
using System.Runtime.InteropServices;

namespace Mouse_Click_Simulator
{
    /// <summary>
    /// Summary description for Win32.
    /// </summary>
    public class Win32
    {
        // The WM_COMMAND message is sent when the user selects a command item from 
        // a menu, when a control sends a notification message to its parent window, 
        // or when an accelerator keystroke is translated.
        public const int WM_KEYDOWN = 0x100;
        public const int WM_KEYUP = 0x101;
        public const int WM_COMMAND = 0x111;
        public const int WM_LBUTTONDOWN = 0x201;
        public const int WM_LBUTTONUP = 0x202;
        public const int WM_LBUTTONDBLCLK = 0x203;
        public const int WM_RBUTTONDOWN = 0x204;
        public const int WM_RBUTTONUP = 0x205;
        public const int WM_RBUTTONDBLCLK = 0x206;

        // The FindWindow function retrieves a handle to the top-level window whose
        // class name and window name match the specified strings.
        // This function does not search child windows.
        // This function does not perform a case-sensitive search.
        [DllImport("User32.dll")]
        public static extern int FindWindow(string strClassName, string strWindowName);

        // The FindWindowEx function retrieves a handle to a window whose class name 
        // and window name match the specified strings.
        // The function searches child windows, beginning with the one following the
        // specified child window.
        // This function does not perform a case-sensitive search.
        [DllImport("User32.dll")]
        public static extern int FindWindowEx(
            int hwndParent, 
            int hwndChildAfter, 
            string strClassName, 
            string strWindowName);


        // The SendMessage function sends the specified message to a window or windows. 
        // It calls the window procedure for the specified window and does not return
        // until the window procedure has processed the message. 
        [DllImport("User32.dll")]
        public static extern Int32 SendMessage(
            int hWnd,               // handle to destination window
            int Msg,                // message
            int wParam,             // first message parameter
            [MarshalAs(UnmanagedType.LPStr)] string lParam); // second message parameter

        [DllImport("User32.dll")]
        public static extern Int32 SendMessage(
            int hWnd,               // handle to destination window
            int Msg,                // message
            int wParam,             // first message parameter
            int lParam);            // second message parameter
    }
}

例如：

 Win32.SendMessage(iHandle, Win32.WM_LBUTTONDOWN, 0x00000001, 0x1E5025B);

Here's My Application Source Code 我创建用于在特定时间间隔内自动点击“BlueStacks”应用程序！

对于FindWindow、wParam、lParam等，你可以随时问我怎么做！这不是太难:) ;) 希望它有所帮助！ :)

Answer 3

我无法添加评论：D

为我工作：

[DllImport("User32.dll")]
    public static extern Int32 SendMessage(
    int hWnd,               
    int Msg,                
    int wParam,            
    IntPtr lParam);

并像这样在 lParam 中组合坐标：

private static IntPtr CreateLParam(int LoWord, int HiWord)
    {
        return (IntPtr)((HiWord << 16) | (LoWord & 0xffff));
    }

并使用：

Clicktoapp.SendMessage(0x00040156, Clicktoapp.WM_LBUTTONDOWN, 0x00000001, CreateLParam(150,150));
        Clicktoapp.SendMessage(0x00040156, Clicktoapp.WM_LBUTTONUP, 0x00000000, CreateLParam(150, 150));

0x00040156 - 窗口句柄。

我正在寻找使用 spy ++ 的窗口句柄 每次都是新的，所以最好用FindWindow。

附言

应用程序窗口的屏幕截图，即使窗口不在顶部

https://stackoverflow.com/a/911225/12928587

我使用这个解决方案。工作得很好。