C# script who draw a line in EditMode

Hi,

Someone knows how an script (component of many gameobjects) can draw a line in the scene window in editmode ? This script have a public class (MonoBehaviour herited) and must access his public variables (like Range, float, ... alterable in the inspector) !

In fact, each instantiation of this script should draw his own line (like the Collider2D component)..

I did not found the solution on Google after more two hours... Sorry for my possibly bad English, I'm french. Thanks for your replies !

EDIT: Solution :

 void OnDrawGizmos()
 {
     Gizmos.DrawLine (Start, End);
 }