text: #include "apphost.h"
  #include "draw2d.h"
  
  void onLoad()
  {
  	setCanvasSize(800, 600);
  
  	PixelCoord verts[] = { PixelCoord({10,10}),PixelCoord({300,10}),PixelCoord({300,300}),PixelCoord({10,300}) };
  	fillConvexPolygon(*gAppSurface, verts, 4, 0, PixelRGBA(0xffffff00), PixelRect(0,0,canvasWidth,canvasHeight));
  
  	refreshScreen();
  }