Control over both screens on iPad Split view

Is it possible to create a rectangle which covers the iPad’s entire screen when I have a split view? Preferably in code. Right now I’m using the MobileScreen’s left and right but as expected, that only covers one screen not the other. I experimented with iOSLayout and App.CurrentLayout but other than a few crashes I’ve got nothing to show for it.
declare function NSClassFromString lib "Foundation" (clsName as CFStringRef) as ptr
Declare Function sharedApplication Lib "UIKit" Selector "sharedApplication" (obj As Ptr) As Ptr
Dim sharedApp As Ptr = sharedApplication(NSClassFromString("UIApplication"))

Declare Function keyWindow Lib "UIKit" selector "keyWindow" (obj_id As ptr) As ptr

Dim mainWindow As Ptr = keyWindow(sharedApp)

//cc is a property on the view
cc = new Container1 //Container1 is a MobileContainer with a black rectangle

declare sub addSubview lib "UIKit" selector "addSubview:" (obj_id as ptr, subview as ptr)
addSubview(mainWindow, cc.Handle)

I was wondering the same lately.

You will need to find a way to resized the container to mainWindow.frame which can be retrieved with iOSDesignExtensions I guess

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Thank you Jeremie. Your code works, the container shows but I can’t seem to find a way to resize it. I have found another solution though: I add the rectangle to a MobileScreen whose background color is set to transparent (with the help of your iOSDesignExtensions) and I will call the MobileScreen to show modally:

var ms as new Screen1 //Screen1's background color is transparent and it has the rectangle
ms.ShowModal(self, MobileScreen.ModalPresentationStyles.OverFullScreen, false)
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