old_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import
  
  import pyglet
  from pyglet import gl
  
  import imgui
  from imgui.integrations.pyglet import PygletRenderer
  
  
  def main():
  
      window = pyglet.window.Window(width=800, height=600, resizable=True)
      gl.glClearColor(1, 1, 1, 1)
      renderer = PygletRenderer(window)
  
      def update(dt):
          imgui.new_frame()
          if imgui.begin_main_menu_bar():
              if imgui.begin_menu("File", True):
  
                  clicked_quit, selected_quit = imgui.menu_item(
                      "Quit", 'Cmd+Q', False, True
                  )
  
                  if clicked_quit:
                      exit(1)
  
                  imgui.end_menu()
              imgui.end_main_menu_bar()
  
          imgui.show_test_window()
  
          imgui.begin("Custom window", True)
          imgui.text("Bar")
          imgui.text_colored("Eggs", 0.2, 1., 0.)
          imgui.end()
  
      @window.event
      def on_draw():
          update(1/60.0)
          window.clear()
          imgui.render()
          renderer.render(imgui.get_draw_data())
  
      pyglet.app.run()
      renderer.shutdown()
  
  
  if __name__ == "__main__":
      main()
  
new_contents: # -*- coding: utf-8 -*-
  from __future__ import absolute_import
  
  import pyglet
  from pyglet import gl
  
  import imgui
  from imgui.integrations.pyglet import PygletRenderer
  
  
  def main():
  
      window = pyglet.window.Window(width=1280, height=720, resizable=True)
      gl.glClearColor(1, 1, 1, 1)
      renderer = PygletRenderer(window)
  
      def update(dt):
          imgui.new_frame()
          if imgui.begin_main_menu_bar():
              if imgui.begin_menu("File", True):
  
                  clicked_quit, selected_quit = imgui.menu_item(
                      "Quit", 'Cmd+Q', False, True
                  )
  
                  if clicked_quit:
                      exit(1)
  
                  imgui.end_menu()
              imgui.end_main_menu_bar()
  
          imgui.show_test_window()
  
          imgui.begin("Custom window", True)
          imgui.text("Bar")
          imgui.text_colored("Eggs", 0.2, 1., 0.)
          imgui.end()
  
      @window.event
      def on_draw():
          update(1/60.0)
          window.clear()
          imgui.render()
          renderer.render(imgui.get_draw_data())
  
      pyglet.app.run()
      renderer.shutdown()
  
  
  if __name__ == "__main__":
      main()
  
subject: Make the window in the pyglet example larger.