What is the Size of the stage?

OZApps

The size of the stage seems to be the size of the items visible on the stage.

local image = Bitmap.new(Texture.new("box.png")) stage:addChild(image)   print(stage:getWidth(), stage:getHeight(), application:getDeviceWidth(), application:getLogicalWidth())

now you can try to scale the image and see how the size of the stage varies with it. So what is the actual size of the stage? Is it the rootViewController that needs to be resized to get a full screen rendering if the stage is moved between windows??