Adds the class name to line.
name will be converted to a glib.types.uint as part of this process. A faster version of this function is available via gtksource.gutter_lines.GutterLines.addQclass for situations where the glib.types.uint is known ahead of time.
a line number starting from zero
a class name
Adds the class name to line.
name will be converted to a glib.types.uint as part of this process. A faster version of this function is available via gtksource.gutter_lines.GutterLines.addQclass for situations where the glib.types.uint is known ahead of time.