gtk/gtk.go
func (v *Calendar) SetDetailWidthChars(chars int) {
	C.gtk_calendar_set_detail_width_chars(v.native(), C.gint(chars))
}
func (v *Calendar) SetDetailWidthChars(chars int) {
	C.gtk_calendar_set_detail_width_chars(v.native(), C.gint(chars))
}
// SetDetailWidthChars is a wrapper around gtk_calendar_set_detail_width_chars().