im trying to duplicate a really neat java applet i saw on the web ( source code was free)

but part of the program sets up a "drawing area"

Code:
void setup() {
  // set up drawing area
  size(800,800,P3D);
  background(0);
  // take it nice and easy
  framerate(15);
  // load typeface
  metaBold = loadFont("Arial-48.vlw");
}

and im not sure what the eqivlantcy is in C# i set up a picture box but im not sure how to set up c# to change it pixel by pixel like the java program does

any pointers