I'm referring to the callbacks from emscripten_set_resize_callback and 
emscripten_set_fullscreenchange_callback as declared in 
system/include/emscripten/html5.h. Those functions do I believe add 
listeners to those events you mentioned.

On Tuesday, February 25, 2014 6:26:55 PM UTC-8, msc wrote:
>
>  On 2014/02/26 6:23, Joel Croteau wrote:
>  
> Is there a good way to get the screen resolution when switching to full 
> screen? Calling emscripten_get_canvas_size from either the resize or 
> fullscreenchange callbacks seems to return the canvas size from before 
> going full screen.
>
>  I don't know what resize or fullscreenchange callbacks you are referring 
> to.
>
> What I found is that you need to add you application's resize handler 
> function to Browser.resizeListeners. These are called (by the default 
> Emscripten HTML shell & JS) after the canvas has been resized. 
> Canvas.eventListeners are called when the canvas CSS size (clientWidth, 
> clientHeight) changes but before the canvas size (width, height) has been 
> changed.
>  
> I guess emscripten_get_canvas_size returns canvas.width and canvas.height.
>  
> Regards
>
>     -Mark
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