Question

I’m using Python 2.7 with PySide and want to use this to retrieve pen pressure from my wacom pen.

So I tried setting up the following

import PySide
from PySide import QtCore, QtGui
pressure = PySide.QtGui.QTabletEvent.pressure()
print pressure

That threw the following error

pressure = PySide.QtGui.QTabletEvent.pressure()
TypeError: descriptor 'pressure' of 'PySide.QtGui.QTabletEvent' object needs an argument

The object it needs is a “PySide.QtGui.QTabletEvent” Object. But I have no idea how can I retrieve such an object.

So my question is, how do I retrieve the wacom penpressure using QTabletEvent?

Answer 1

You need to receive the actual event and obtain the pressure from it.

Example:

import sys
from PySide import QtCore, QtGui

class MyWidget(QtGui.QWidget):
    def tabletEvent(self, e):
        print(e.pressure())

app = QtGui.QApplication(sys.argv)
widget = MyWidget()
widget.show()
app.exec_()