setShadowWidth
fun setShadowWidth( left: <Error class: unknown class>, right: <Error class: unknown class>, top: <Error class: unknown class>, bottom: <Error class: unknown class>)(source)
Sets the shadows size of the toplevel.
The shadow width corresponds to the part of the computed surface size that would consist of the shadow margin surrounding the window, would there be any.
Shadow width should only be set if method@Gtk.Display.supports_shadow_width is true.
Parameters
left
width of the left part of the shadow
right
width of the right part of the shadow
top
height of the top part of the shadow
bottom
height of the bottom part of the shadow