获取鼠标在QImage中的位置

Question

I need to get the coordinates of a QImage of where the mouse is currently hovering. Like in image editing programs, where we can see the coordinates of the pixel the mouse in currently hovering.

Answer 1

Call setMouseTracking(true) , and override mouseMoveEvent . Your mouseMoveEvent function will be called whenever the mouse moves inside the QImage. (You have to create a subclass of QImage to do this.)