How to determine which widget the mouse pointer is on?

[song whale]

Hello. If there are multiple docks and their corresponding widgets inside one DockArea, how can I get the mouse pointer coordinates?

def mouseMoved(pos): 

     qwidget.pwidget  .getViewBox().mapSceneToView(pos)   

     xCor = mousePoint.x() 

     yCor = mousePoint.y()   

     print( xCor, yCor)   

qwidget.pwidget.scene().sigMouseMoved.connect(mouseMoved)

If I use the fuction above, I need to specify which widget the mouse is on in advance. 

Are there any convenient ways to determine the mouse position in a situation where there are multiple widgets, or is there a method that tells you which widget the mouse is on?

[Patrick]

Hi,

There's probably a few ways to do this, but the simplest modification to your code would be to use a lambda expression to wrap the mouseMoved function and pass in the appropriate widget. It might look something like this:

def mouseMoved(widget, pos): 

     widget.getViewBox().mapSceneToView(pos)   

     xCor = mousePoint.x() 

     yCor = mousePoint.y()   

     print( xCor, yCor)   

for w in [pwidget1, pwidget2, pwidget3]:

    w.scene().sigMouseMoved.connect(lambda pos: mouseMoved(w, pos))

I'll also add that if you ever need to do some complicated event handling that is not possible in pyqtgraph, then remember that everything in pyqtgraph is a Qt object, which means you can go directly to the Qt event layer to catch and manipulate events at a low level. The EventFilter is very powerful in this regard: https://doc.qt.io/qtforpython/overviews/eventsandfilters.html

Patrick