void setup_gcs(void); void drawRk(float), drawGk(float), drawXk(float), drawBk(float), drawRHOk(float), drawQk(float); void drawR(float, float, float), drawX(float, float, float), drawG(float, float, float), drawB(float, float, float), drawRHO(float, float, float), drawLINE(float, float, float, float); void drawSP(float, float), drawchart(void); /* Non dovrebbero essere qui (?) */ void showtextstat(void), showcircdesc(void), exptlpln(char, char*);