func (v *Widget) GetOpacity() float64 {
	c := C.gtk_widget_get_opacity(v.native())
	return float64(c)
}
func (v *Widget) GetOpacity() float64 {
	c := C.gtk_widget_get_opacity(v.native())
	return float64(c)
}
func ( v * Widget ) GetOpacity ( ) float64 { c := C . gtk_widget_get_opacity ( v . native ( ) ) return float64 ( c ) }
// GetOpacity is a wrapper around gtk_widget_get_opacity()
GetOpacity is a wrapper around gtk_widget_get_opacity ()