如何使用cv::setMouseCallback函数

void setMouseCallback(const String& winname, MouseCallback onMouse, void* userdata = 0);

#include <opencv2/opencv.hpp>

using namespace cv;

void onMouse(int event, int x, int y, int flags, void* userdata)
{
    if (event == EVENT_LBUTTONDOWN)
    {
        // 鼠标左键按下事件处理
        // 在控制台输出鼠标点击的坐标
        std::cout << "Left button clicked at (" << x << ", " << y << ")" << std::endl;
    }
    else if (event == EVENT_RBUTTONDOWN)
    {
        // 鼠标右键按下事件处理
        // 在图像上绘制一个红色的圆圈
        Mat* image = static_cast<Mat*>(userdata);
        circle(*image, Point(x, y), 10, Scalar(0, 0, 255), 2);
        imshow("Image", *image);
    }
}

int main()
{
    Mat image = imread("image.jpg");

    namedWindow("Image");
    setMouseCallback("Image", onMouse, &image);

    imshow("Image", image);
    waitKey(0);

    return 0;
}