OpenCV 2.3 with VS 2008 - Mouse Events

Question

Obligatory - I\'m a newbie. Have a job that involves programming and I\'m teaching myself as I go. Needless to say as a teacher I get things wrong frequently and thoroughly.

Answer 1

You can also use the onMouse method as a static method.

class Graph
{
public:
     static void onMouse(int event, int x, int y, void* param)
     {
          //Your code here
     }

     //Everything else you may need
}

Now you should be able to call the onMouse method with:

cv::setMouseCallback(windowName, onMouse, (void*) param);

The param can be NULL or whatever you want to pass as parameter to the method, but you'll need to make a type-cast to the desired type.

Hope this was useful. Bye.