Draw a squiggly line that approximately covers the given rectangle
in the style of an underline used to indicate a spelling error.
(The width of the underline is rounded to an integer number
of up/down segments and the resulting rectangle is centered
in the original rectangle)
This should be called while renderer is already active. Use
pango_renderer_activate() to activate a renderer.
Since 1.8
Draw a squiggly line that approximately covers the given rectangle in the style of an underline used to indicate a spelling error. (The width of the underline is rounded to an integer number of up/down segments and the resulting rectangle is centered in the original rectangle) This should be called while renderer is already active. Use pango_renderer_activate() to activate a renderer. Since 1.8