How to grab window from 0.19.1 wgpu create_surface?

[lexi-the-cute]

I'm trying to make sure I can resize the surface to match my window when the user resizes the window and am not sure how to grab the window's internal size after creating the surface with instance.create_surface(&window).unwrap();

[cwfitzgerald]

You can't, you need to retain a handle to the window yourself - the general way to do this is to hand us an Arc and keep an arc for yourself.

[lexi-the-cute]

perfect! that was surprisingly easy once i learned about Arc from you. thanks!

[lexi-the-cute]

for those looking at this in the future, i cloned the Arc to pass to create_surface:

let surface: Surface = instance.create_surface(window_arc.clone()).unwrap();

i then grab the window handle with as_ref:

let size: PhysicalSize<u32> = window_arc.as_ref().inner_size();

[cwfitzgerald]

For the second part, you should be able to call methods directly on the Arc without needing as_ref()