#include <os.h>
#include <nspireio2.h>
#include <ngc.h>
#define TRUE 1
#define FALSE 0

int main(void) {
    /* Get the gc */
  Gc gc = *gui_gc_global_GC_ptr;

  /* Initialization */
  gui_gc_setRegion(gc, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
  gui_gc_begin(gc);

  /* Draw */
  gui_gc_clipRect(gc, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT, GC_CRO_SET);
  gui_gc_fillRect(gc, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT); /* Will only draw a 10x10 rectangle */

    wait_key_pressed();

    /* Blit & finish */
  gui_gc_blit_to_screen(gc);
  gui_gc_finish(gc);

  return 0;
}