Sets entry's inner-border property to border, or clears it if NULL
is passed. The inner-border is the area around the entry's text, but
inside its frame.
If set, this property overrides the inner-border style property.
Overriding the style-provided border is useful when you want to do
in-place editing of some text in a canvas or list widget, where
pixel-exact positioning of the entry is important.
Since 2.10
Sets entry's inner-border property to border, or clears it if NULL is passed. The inner-border is the area around the entry's text, but inside its frame. If set, this property overrides the inner-border style property. Overriding the style-provided border is useful when you want to do in-place editing of some text in a canvas or list widget, where pixel-exact positioning of the entry is important. Since 2.10