viewport_overlay_corner

ViewportOverlayPoint viewport_overlay_corner(Scalar image_width, Scalar control_width, Scalar margin) noexcept

Parameters

Returns

ViewportOverlayPoint

The control's top-left corner, image-local. Never left of margin, so a control wider than its image starts inside the image rather than outside it.

Description

Returns where a control anchored to the image's top-right corner starts.