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 methodGtk.Display.supports_shadow_width is true.
width of the left part of the shadow
width of the right part of the shadow
height of the top part of the shadow
height of the bottom part of the shadow
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 methodGtk.Display.supports_shadow_width is true.