SendInput 鼠标点击不起作用

only_youlix 2024-08-28 11:06:31

开发环境：WPF 、 Windows 11系统、Visual Studio 2022 （管理员启动）
想实现一个功能：通过WPF调用user32，模拟鼠标点击，目前通过SetCursorPos和mouse_event函数已经可以实现，鼠标会移动到对应坐标不太友好，想用SendInput实现静默点击。
遇到的问题：SendInput实现静默点击不起作用


   public class MouseSimulator
   {
       // 鼠标事件类型
       [Flags]
       public enum MouseEventFlags
       {
           LeftDown = 0x0002,
           LeftUp = 0x0004,
           MiddleDown = 0x0020,
           MiddleUp = 0x0040,
           RightDown = 0x0008,
           RightUp = 0x0010,
           Wheel = 0x0800,
           XDown = 0x0080,
           XUp = 0x0100
       }
       // 定义鼠标输入结构体
       [StructLayout(LayoutKind.Sequential)]
       public struct MOUSEINPUT
       {
           public int dx;
           public int dy;
           public int mouseData;
           public MouseEventFlags dwFlags;
           public int time;
           public IntPtr dwExtraInfo;
       }
       // 定义输入结构体
       [StructLayout(LayoutKind.Explicit)]
       public struct INPUT
       {
           [FieldOffset(0)]
           public int type;
           [FieldOffset(4)]
           public MOUSEINPUT mi;
       }
       // 导入SendInput函数
       [DllImport("user32.dll", SetLastError = true)]
       static extern uint SendInput(uint nInputs, [MarshalAs(UnmanagedType.LPArray)] INPUT[] pInputs, int cbSize);
       // 鼠标模拟单击方法
       public static void SimulateMouseClick(int x, int y)
       {
           // 设置鼠标坐标
           MOUSEINPUT mouseInput = new MOUSEINPUT
           {
               dx = x,
               dy = y
           };
           // 设置鼠标点击事件
           mouseInput.dwFlags = MouseEventFlags.LeftDown;
           INPUT inputDown = new INPUT
           {
               type = 0,
               mi = mouseInput
           };
           mouseInput.dwFlags = MouseEventFlags.LeftUp;
           INPUT inputUp = new INPUT
           {
               type = 0,
               mi = mouseInput
           };
           // 模拟鼠标点击事件
           INPUT[] inputs = new INPUT[] { inputDown, inputUp };
           SendInput((uint)inputs.Length, inputs, Marshal.SizeOf(typeof(INPUT)));
       }
     
   }