title: c# drawing and merging
body: <p>I beleive it's possible but aint see nothing like that. I would like to have rectangles (some horizontal and some vertical) acting like this : take the first one, place it side the second one and when line touch, create a "L" without the inside lines. It will be a kinda basic CAD drawing.</p>
  
  <p>The project will be created with visual studio 2010 ultimate in c# with framework 4.</p>
  
  <p>If anyone have clues or path to tutorials, i'll appreciate.</p>
  
  <p>Thanks !</p>
  
  <p>EDIT: there is my try.</p>
  
  <pre><code>System.Drawing.Rectangle rectangle1 = new System.Drawing.Rectangle(30, 40, 50, 200);          System.Drawing.Rectangle rectangle2 = new System.Drawing.Rectangle(30, 190, 200, 50);
  e.Graphics.DrawRectangle(Pens.Blue, rectangle1);
  e.Graphics.DrawRectangle(Pens.GreenYellow, rectangle2);
  System.Drawing.Rectangle rectangle3 = System.Drawing.Rectangle.Intersect(rectangle1, rectangle2);
  e.Graphics.DrawRectangle(Pens.White, rectangle3);
  </code></pre>