Hey Benjamin, ALT + ENTER does work, just ALT + TAB doesn't. I'm thinking 
Windows switches out of the window pyglet gets a chance to see the 
keypresses. 

On Monday, January 9, 2017 at 1:11:07 AM UTC-6, Benjamin Moran wrote:
>
> Pyglet doesn't capture any keypresses by default, but I usually just add 
> the additional events like so:
> @window.event
> def on_key_press(key, mod):
>     if key == pyglet.window.key.ENTER and mod == pyglet.window.key.MOD_ALT
> : 
>         ......
>         ......
>
>         if window.fullscreen is True:
>             window.set_fullscreen(fullscreen=False)
>         else:
>             window.set_fullscreen(fullscreen=True)
>
>
>
>
>
> On Monday, January 9, 2017 at 8:18:53 AM UTC+9, Charles wrote:
>>
>> It's been a while since I have been able to program again, however I just 
>> tried this and the alt tab combination is not actually registered by pyglet 
>> (Windows 7).
>>
>> On Saturday, December 3, 2016 at 4:46:37 PM UTC-6, [email protected] 
>> wrote:
>>>
>>> What you can do is capture the alt-tab keys and use 
>>> window.set_fullscreen(False) to return to the desktops native resolution, 
>>> then you could use window.minimize() to miminize it to the task bar or just 
>>> leave it around. I've tried a few other approaches using 
>>> window.on_activate() and window.on_deactivate() for when the window gains 
>>> and looses focus, though I found the results were a little janky when it 
>>> came to scaling properly, others may be able to get better results. As it 
>>> stands in my current example when you tab back the window won't be in 
>>> fullscreen mode, but a simple alt+enter solves that. Example:
>>>
>>> import pyglet
>>> from pyglet.window import key
>>> from pyglet.gl import *
>>>
>>> class example(pyglet.window.Window):
>>>     def __init__(self):
>>>         super(example, self).__init__(640, 480, resizable=False, 
>>> fullscreen=True, caption="Test")
>>>         self.clear()
>>>
>>>     #fullscreen aspect ratio
>>>         self.aspect = [self.width/640.0,self.height/480.0]
>>>
>>>         pyglet.clock.get_fps()
>>>         self.fps_display = pyglet.clock.ClockDisplay()
>>>
>>>         pyglet.clock.schedule_interval(self.update, .01)
>>>
>>>
>>>     def update(self,dt):
>>>     #draw screen
>>>         self.draw()
>>>
>>>
>>>     def draw(self):
>>>         self.clear()
>>>         self.fps_display.draw()
>>>       
>>>
>>>     def on_key_press(self,symbol,modifiers):
>>>         if symbol == key.ESCAPE:
>>>             self.close()
>>>     #fullscreen toggle
>>>         if symbol == key.ENTER:
>>>             if modifiers & key.MOD_ALT:
>>>             #if fullscreen off, turn on and scale the screen
>>>                 if self.fullscreen == False:
>>>                     window.set_fullscreen(True)
>>>                     
>>> glScalef(window.width/640.0,window.height/480.0,1.0)#2.25x, 
>>> 1.875y
>>>                     self.aspect[0] = window.width/640.0
>>>                     self.aspect[1] = window.height/480.0
>>>                     print 'PONG',self.aspect
>>>             #if its on, turn it off and un-scale the screen
>>>                 else:
>>>                     window.set_fullscreen(False)
>>>                     glScalef((window.width/640.0)/self.aspect[0],(window
>>> .height/480.0)/self.aspect[1],1.0)
>>>
>>>     #tab out of fullsceen
>>>         if symbol == key.TAB:
>>>             if modifiers & key.MOD_ALT:
>>>                 if self.fullscreen == True:
>>>                     window.set_fullscreen(False)
>>>                     glScalef((window.width/640.0)/self.aspect[0],(window
>>> .height/480.0)/self.aspect[1],1.0)
>>>                     self.minimize()
>>>
>>>
>>> if __name__ == '__main__':
>>>     window = example()
>>>     pyglet.app.run()
>>>
>>>
>>>
>>>

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