code: def on_resize(self, event):
      gloo.set_viewport(0, 0, *event.physical_size)
  
file_path: vispy/examples/gloo/display_points.py
imports: from vispy import gloo
  from vispy import app
  import numpy
label_desc: Use image node_id 2 for calling the Canvas obj's underlying member method code with example usage: obj.on_resize(event) without return types