获得鼠标再屏幕上的位置（point(x,y)）,用那个API>?

xiayule 2003-10-10 01:05:19

最好给段代码。

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切换为时间正序

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xiayule 2003-10-10

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GetPixel()

xiayule 2003-10-10

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还有获取某一点颜色的aPI函数：谢谢

little_sheep 2003-10-10

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BOOL GetCursorPos(LPPOINT)

Microsoft Visual Studio 2010做的C#实时监控鼠标位置和左键点击时的位置实例，主要代码： public class MouseHook { private Point point; private Point Point { get { return point; } set { if (point != value) { point = value; if (MouseMoveEvent != null) { var e = new MouseEventArgs(MouseButtons.None, 0, point.X, point.Y, 0); MouseMoveEvent(this, e); } } } } private int hHook; private const int WM_LBUTTONDOWN = 0x201; public const int WH_MOUSE_LL = 14; public Win32Api.HookProc hProc; public MouseHook() { this.Point = new Point(); } public int SetHook() { hProc = new Win32Api.HookProc(MouseHookProc); hHook = Win32Api.SetWindowsHookEx(WH_MOUSE_LL, hProc, IntPtr.Zero, 0); return hHook; } public void UnHook() { Win32Api.UnhookWindowsHookEx(hHook); } private int MouseHookProc(int nCode, IntPtr wParam, IntPtr lParam) { Win32Api.MouseHookStruct MyMouseHookStruct = (Win32Api.MouseHookStruct)Marshal.PtrToStructure(lParam, typeof(Win32Api.MouseHookStruct)); if (nCode < 0) { return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam); } else { if (MouseClickEvent != null) { MouseButtons button = MouseButtons.None; int clickCount = 0; switch ((Int32)wParam) { case WM_LBUTTONDOWN: button = MouseButtons.Left; clickCount = 1; break; } var e = new MouseEventArgs(button, clickCount, point.X, point.Y, 0); MouseClickEvent(this, e); } this.Point = new Point(MyMouseHookStruct.pt.x, MyMouseHookStruct.pt.y); return Win32Api.CallNextHookEx(hHook, nCode, wParam, lParam); } } public delegate void MouseMoveHandler(object sender, MouseEventArgs e); public event MouseMoveHandler MouseMoveEvent; public delegate void MouseClickHandler(object sender, MouseEventArgs e); public event MouseClickHandler MouseClickEvent; }

WinAPI-Wrapper 模拟鼠标点击用于模拟鼠标移动、点击、窗口操作等的Windows API包装器类。 API 下面是一些可用的方法的总结。有更多的方法和类，比下面列出的要多，但目的是要大致了解包装器能做什么。要查看关于特定方法的详细信息和参数的详细信息，请查看代码本身，因为它的注释很好。 Mouse.cs public static void LeftClick(); public static void RightClick(); public static void MiddleClick(); public static void LeftDown(); public static void LeftUp(); public static void RightDown(); public static void RightUp(); public static void MiddleDown(); public static void MiddleUp(); public static void Move(int x, int y); public static void LeftDrag(Point point1, Point point2, int interval, int lag); Window.cs public static bool DoesExist(string windowTitle); public static IntPtr Get(string windowTitle); public static IntPtr GetFocused(); public static void SetFocused(IntPtr hWnd); public static bool IsFocused(IntPtr hWnd); public static void Move(IntPtr hWnd, int x, int y); public static void Resize(IntPtr hWnd, int width, int height); public static void Hide(IntPtr hWnd); public static void Show(IntPtr hWnd); public static Rectangle GetDimensions(IntPtr hWnd); public static Size GetSize(IntPtr hWnd); public static Point GetLocation(IntPtr hWnd); public static string GetTitle(IntPtr hWnd); public static void SetTitle(IntPtr hWnd, string title); public static void Maximize(IntPtr hWnd); public static void Minimize(IntPtr hWnd); public static void Normalize(IntPtr hWnd); public static Bitmap Screenshot(IntPtr hWnd); public static void RemoveMenu(IntPtr hWnd); public static void Close(IntPtr hWnd); public static void DisableCloseButton(IntPtr hWnd); public static void DisableMaximizeButton(IntPtr hWnd); public static void DisableMinimizeButton(IntPtr hWnd); public static void EnableMouseTransparency(IntPtr hWnd); public static Point ConvertToWindowCoordinates(IntPtr hWnd, int x, int y); public static Point GetCoordinateRelativeToWindow(IntPtr hWnd); Desktop.cs public static Bitmap Screenshot(); public static void HideTaskBar(); public static void ShowTaskBar(); public static int GetWidth(); public static int GetHeight(); 使用在windows api文件夹中编译代码会产生一个.dll文件。任何引用这个.dll的ccode都可以使用包装器。

（2）在Ubuntu系统上演示使用PointNet++进行三维点云的物体分类、部件分割和场景语义分割的训练和测试；（3）详解PointNet++的原理、程序代码和实现细节，并使用PyCharm进行Debug调试代码和单步跟踪。

Microsoft Visual Studio 2010做的C#获取鼠标所在位置的窗口句柄名称和文字及位置实例，主要代码： [StructLayout(LayoutKind.Sequential)]//定义与API相兼容结构体，实际上是一种内存转换 public struct POINTAPI { public int X; public int Y; } [DllImport("user32.dll", EntryPoint = "GetCursorPos")]//获取鼠标坐标 public static extern int GetCursorPos( ref POINTAPI lpPoint ); [DllImport("user32.dll", EntryPoint = "WindowFromPoint")]//指定坐标处窗体句柄 public static extern int WindowFromPoint( int xPoint, int yPoint ); [DllImport("user32.dll", EntryPoint = "GetWindowText")] public static extern int GetWindowText( int hWnd, StringBuilder lpString, int nMaxCount ); [DllImport("user32.dll", EntryPoint = "GetClassName")] public static extern int GetClassName( int hWnd, StringBuilder lpString, int nMaxCont ); [DllImport("user32.dll")] [return: MarshalAs(UnmanagedType.Bool)] public static extern bool GetWindowRect(IntPtr hWnd, ref RECT lpRect); [StructLayout(LayoutKind.Sequential)] public struct RECT { public int Left; //最左坐标 public int Top; //最上坐标 public int Right; //最右坐标 public int Bottom;//最下坐标 }

Microsoft Visual Studio 2010做的C#简单的实时监听鼠标位置实例，主要代码： public class Win32Api { [StructLayout(LayoutKind.Sequential)] public class POINT { public int x; public int y; } [StructLayout(LayoutKind.Sequential)] public class MouseHookStruct { public POINT pt; public int hwnd; public int wHitTestCode; public int dwExtraInfo; } public delegate int HookProc(int nCode, IntPtr wParam, IntPtr lParam); //安装钩子 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] public static extern int SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId); //卸载钩子 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] public static extern bool UnhookWindowsHookEx(int idHook); //调用下一个钩子 [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)] public static extern int CallNextHookEx(int idHook, int nCode, IntPtr wParam, IntPtr lParam); }

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